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jakman85 74ba90c0b3 Merge branch 'main' into fix/renovate-hold-auth-and-self
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2026-10-30 08:14:15 +00:00
jakman85 fb45d7441b Merge pull request 'feat(renovate): track the Keycloak operator (the real Keycloak version), never auto-merge it' (#88) from feat/renovate-track-keycloak-operator into main
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renovate / renovate (push) Successful in 50s
Reviewed-on: #88
2026-10-30 08:14:02 +00:00
jakman85andClaude Opus 5.5 8ed4e30201 docs(decisions): handoff for feat/renovate-track-keycloak-operator
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Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-30 03:06:56 -05:00
jakman85andClaude Opus 5.5 24db269ea8 feat(renovate): track the Keycloak operator (the real Keycloak version), never auto-merge it
The Keycloak CR has no spec.image, so the operator's RELATED_IMAGE_KEYCLOAK picks the
server image; the three keycloak-k8s-resources release URLs in
platform/keycloak/kustomization.yaml are therefore THE Keycloak version, and Renovate
could not see them (no `# renovate:` marker). They now carry markers under one depName
(one branch, groupName keycloak-operator), with a packageRule: automerge false, labels
needs-review + blast-radius; majors still wait on the dashboard.

The untagged quay.io/keycloak/keycloak in catalog/keycloak.yaml renders
apps/wave-1/keycloak.yaml, which no kustomization lists. It is pinned to the operator's
26.0.6 as documentation, re-rendered, and Renovate is disabled for that image so it
cannot raise PRs against a file nothing deploys. The render is kept (not deleted): it is
the fixture for apps/wave-1/tests/app-slis.test.yaml's keycloak SLI rule tests.

README: an "Upgrading Keycloak" section — an operator bump must be checked against
passkey-reconciler.yaml's 26.0.6 Admin API assumptions.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-30 03:02:25 -05:00
jakman85andClaude Opus 5.5 df96be98bf fix(renovate): never auto-merge the oauth2-proxy sidecar or Renovate's own version
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Operator decision. Both are held at every update type and labelled needs-review:

- quay.io/oauth2-proxy/oauth2-proxy (render.py constant, rendered sidecars, crafty). Since v7.13.0
  oauth2-proxy validates refreshed OIDC sessions against the access token, every sidecar uses
  --cookie-refresh, and that path is untested against this Keycloak.
- ghcr.io/renovatebot/renovate (and renovatebot/github-action if ever reintroduced). Nothing
  re-validates renovate.json5 against the new version before it takes effect.

The validator passes on 44.167.0. Evaluated with Renovate's own packageRules engine: exactly 2 of 29
branch rows change (automerge true -> false, +needs-review); the other 27 are identical.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-30 02:54:51 -05:00
jakman85 b4ff2879be Merge pull request 'fix(renovate): edit catalog sources, track CNPG imageName, honour update.range, guard real-run auto-merges' (#86) from fix/renovate-run-hygiene into main
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Reviewed-on: #86
2026-10-30 07:43:28 +00:00
jakman85andClaude Opus 5.5 d9571fc6d8 fix(renovate): edit catalog sources, track CNPG imageName, honour update.range, guard real-run auto-merges
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Audit of the first completed dry runs (353/354) plus a debug-level local reproduction:

- App-image updates edited only the generated apps/wave-*. A ServiceDefinition has no apiVersion,
  so the kubernetes manager extracts nothing from catalog/, and every such PR would fail
  render-golden (reproduced: GOLDEN DRIFT). New regex managers for catalog source.image and
  render.py OAUTH2_PROXY_IMAGE put the source and generated edits in one branch (render-golden
  rc 0, reproduced).
- CNPG Cluster imageName was untracked (3 Clusters), while the grant Job was tracked. New manager.
- allowedVersions mirror catalog update.range: this drops gitea 28.x, qbittorrent 20.x, radarr 6,
  nextcloud 35 and postgresql 18.
- Never auto-merge: gitea, act_runner, postgresql (blast radius), flux range widening, python
  minors. Majors wait for a Dependency Dashboard tick.
- velero plugin RC: semver versioning (v1.14.3-rc.2 -> v1.14.4 now proposed).
- flux docker duplicates disabled (the "Cannot find replaceString" line). Two false comments
  corrected.

Local dry run: regex deps 7 -> 20, branches 33 -> 29. The validator passes on 44.167.0.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-30 02:35:33 -05:00
jakman85 593d0fad15 Merge pull request 'fix(renovate): document and probe the five token scopes Renovate needs; lint daemon-bound actions' (#85) from fix/renovate-auth into main
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Reviewed-on: #85
Reviewed-by: Keith Jackson <[email protected]>
2026-10-30 07:10:02 +00:00
jakman85andClaude Opus 5.5 0c6ee4921d fix(renovate): document and probe the five token scopes Renovate needs; lint daemon-bound actions
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Run 350 cleared platform init (/user 200, /version 200, /repos 200), then stopped at
GET /api/v1/orgs/Home-Network with Gitea's own 403:
  token does not have at least one of required scope(s), required=[read:organization],
  token scope=read:package,write:repository,read:user
The workflow's header listed only those three scopes, and the operator minted exactly that.
Renovate's initRepo -> isOrg needs read:organization, and Gitea files /issues and /labels under
the issue scope, which the dashboard and PR labels need: write:issue.

- renovate.yaml: corrects the scope list (read:user, read:organization, write:repository,
  write:issue, read:package), with the call each serves. A new preflight step probes them with
  GETs, the token passed to curl on stdin, and names a missing scope instead of Renovate's bare
  "Authentication failure".
- ci/lint.sh: rejects workflow `uses:` lines that need a Docker daemon (docker://,
  renovatebot/github-action, docker/*-action), the class fixed in #84.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-30 01:55:39 -05:00
jakman85 d550a501e2 Merge pull request 'fix(renovate): run Renovate as the job container; the action needs a Docker daemon jobs do not get' (#84) from fix/renovate-first-run into main
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Reviewed-on: #84
Reviewed-by: Keith Jackson <[email protected]>
2026-10-30 06:36:11 +00:00
jakman85andClaude Opus 5.5 365e43cdea fix(renovate): run Renovate as the job container; the action needs a Docker daemon jobs do not get
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renovatebot/github-action is a wrapper around `docker run`. On this runner a job has no Docker
daemon by decision (decisions/2026-10-29-image-pipeline.md), so every run, including dispatch
run 343, died before Renovate started:

  failed to connect to the docker API at unix:///var/run/docker.sock ... no such file or directory

The pinned image ghcr.io/renovatebot/renovate:44.167.0 is now the job container, and a run step
execs renovate-entrypoint.sh. actions/checkout is dropped, since Renovate clones the repo itself.
An optional RENOVATE_GITHUB_COM_TOKEN secret feeds GITHUB_COM_TOKEN.

Local dry run (--platform=local, uid 12021, the step body verbatim): 179 deps extracted, 42
updates, and all 4 own-image digest lookups against the Gitea registry succeed.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-30 01:23:36 -05:00
jakman85 dfc432c6ea Merge pull request 'fix(keycloak-passkey): passkey reconciler with review fixes — bind only on git's say-so (default false), protect real sub-flows, body-id screening, failure alert' (#82) from feat/keycloak-passkey-reconcile into main
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Reviewed-on: #82
Reviewed-by: Keith Jackson <[email protected]>
2026-10-30 05:59:11 +00:00
jakman85 262c6e4a97 Merge branch 'main' into feat/keycloak-passkey-reconcile
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2026-10-30 05:56:00 +00:00
jakman85 523cd9118f Merge pull request 'fix(buildkit): allow buildkitd egress to Gitea so the Gateway stops 403ing the registry push' (#83) from fix/gitea-admit-buildkit into main
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Reviewed-on: #83
2026-10-30 05:50:12 +00:00
jakman85andClaude Opus 5.5 d2c4bd5194 fix(buildkit): allow buildkitd egress to Gitea's backend so the Gateway stops 403ing the push
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Images run 337's push failed with "403 Forbidden: Access denied". Measured
read-only: Gitea never logged the request; an unauthenticated GET /v2/ via the
Gateway gets 401 from Gitea when sent from act-runner (egress unrestricted) but
403 from buildkitd; Hubble logs it as an L7 http-request DROPPED with
traffic_direction EGRESS. Cilium >= 1.16.8 (CVE-2025-30162) re-checks the
source pod's egress against the proxied backend identity, and buildkitd's
egress only allowed world and the ingress entity. Same fix as 68690e5 for
Keycloak. Gitea's ingress already admits reserved:ingress and is unchanged.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-30 00:38:54 -05:00
jakman85 0dd57fbaf0 Merge pull request 'feat(images): build, verify and publish the three images in CI on rootless BuildKit; Renovate carries the digests' (#81) from feat/image-pipeline into main
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images / images (push) Failing after 5s
Reviewed-on: #81
Reviewed-by: Keith Jackson <[email protected]>
2026-10-30 05:15:16 +00:00
jakman85andClaude Opus 5.5 04eb38584a fix(conformance): workload-mTLS certificates may use a private CA, if they prove they are workload-internal
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images / images (pull_request) Failing after 7s
R-TLS-01/docs/08 govern externally reachable TLS and ADR-0006 puts workload mTLS out of scope, but
tls-lifecycle-automated required ACME for every Certificate, which platform/buildkit's internal CA
cannot satisfy. Clause (5b) accepts the tls-scope=workload-mtls annotation only when the
certificate proves it: no Gateway serves it, internal names only, namespaced selfSigned/ca issuer
backed by an exempt CA certificate. Also fixes yamllint comma spacing in the buildkitd mounts.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-29 23:59:55 -05:00
jakman85andClaude Opus 5.5 f65c12b395 feat(images): build on rootless BuildKit over mTLS; verification moves into Containerfile verify stages
Operator decision on PR #81: no CI job may reach a privileged daemon. The act runner is untouched.

- platform/buildkit (+ clusters/base/buildkit.yaml): moby/buildkit v0.34.1-rootless pinned by
  digest, uid 1000, not privileged; caps drop ALL + SETUID/SETGID, seccomp/AppArmor Unconfined,
  read-only rootfs (each measured under podman). cert-manager CA + server/client certs, ClusterIP
  :1234, default-deny with ingress only from the act-runner pod (DinD masquerades jobs to it).
  No Kyverno exception: every applied policy matches app-namespace=true only.
- Each Containerfile names its shipped stage and ends in a `verify` stage holding every former
  `docker run` assertion (uid 65532, RUN --network=none, writable-path inventory standing in for
  the read-only rootfs). The old `&& echo` checks that could never fail are real assertions now.
- images.sh drives buildkitd with a pinned buildx (sha256-checked) via bake; PRs build verify
  targets with agent-runner FROM the in-run toolbox (target: context); main verifies, then pushes.
  Fails loudly when the builder secrets are absent or buildkitd is unreachable.
- infra/gitea/buildkit-client-secret.sh copies the client cert into Actions secrets.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-29 23:59:55 -05:00
jakman85andClaude Opus 5.5 8f35234fcc fix(images): name the measured runner blocker; the job container gets no Docker daemon
PR #81's first images run failed in 6s: act_runner 0.2.11 forces docker_host '-' for a tcp://
DOCKER_HOST, and gitea/act drops every bind when valid_volumes is empty. Giving jobs the
privileged DinD daemon is node-root for any workflow author, so it is left to the operator;
options are in the handoff entry. The driver's failure now names the cause.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-29 23:59:55 -05:00
jakman85andClaude Opus 5.5 e539109830 feat(images): build, verify and publish the three images in CI; Renovate carries the digests
Operator rule 2026-10-29: image creation, hosting and lifecycle belong to CI/CD, never to a
workstation build/push. Nothing had ever been pushed to the Gitea registry.

- .gitea/workflows/images.yaml + scripts/images.sh: PRs build+verify (no credential); main
  builds, verifies and pushes toolbox, agent-runner (FROM toolbox) and conformance-runner as
  sha-<commit> + main, reading the digest back from the registry. Only changed images build.
- Each image's own build-image.sh does the build and in-image verification, now engine-neutral
  (DinD: no podman-only calls, probe over stdin not a bind mount). New toolbox build-image.sh.
- Digest references carry `# renovate-digest:` markers; renovate.json5 gains a custom.regex
  manager for them. The worker Job template is deliberately untracked (it would loop).
- renovate.yaml pins renovate-version 44.167.0: the action's default (39.264.0) rejects the
  current config's managerFilePatterns, so every run would have died at CONFIG_VALIDATION.
- Push credential: REGISTRY_PUSH_TOKEN secret; the Actions token has no package scope in
  Gitea 1.24.3 (container.go Authenticate). Retention: infra/gitea/registry-retention.sh.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-29 23:59:55 -05:00
jakman85 27da5555a4 Merge pull request 'fix(renovate): the workflow still named renovate.json, so every run since #79 died with ENOENT' (#80) from fix/renovate-config-filename into main
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Reviewed-on: #80
Reviewed-by: Keith Jackson <[email protected]>
2026-10-30 04:48:42 +00:00
jakman85andClaude Opus 5.5 da1b36eb64 fix(renovate): pin renovate-version — the action's default (39) rejects renovate.json5
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Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-29 21:49:38 -05:00
jakman85andClaude Opus 5.5 6bb8af1d70 docs(decisions): handoff for the passkey reconciler review fixes
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Also states in bind_browser_flow()'s docstring that it is reached only when git's
bind-browser-flow is "true".

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-29 21:45:40 -05:00
jakman85andClaude Opus 5.5 7c4eb439b2 feat(monitoring): alert when the keycloak passkey reconciler's Job fails
KeycloakPasskeyReconcilerFailing (warning, for 15m) on
kube_job_status_failed{namespace="keycloak", job_name=~"keycloak-passkey-reconciler-.*"},
following the sibling client-secret reconciler's rule. promtool unit tests pin it in
both directions: quiet when succeeding, firing after 15m on a failed Job, quiet on the
SIBLING's failure, and quiet on a single transient failure. Runbook added and projected
by the runbooks ConfigMap generator.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-29 21:41:15 -05:00
jakman85andClaude Opus 5.5 17eed6e8ae fix(keycloak-passkey): bind only on git's say-so; protect real sub-flows; screen the requirement PUT by body id
Review findings on the passkey reconciler, fixed:

1. HIGH - the bind was automatic and rollback did not stick. A git-declared switch,
   `bind-browser-flow` in passkey-desired-state.yaml, now decides whether pass 3 may
   PUT browserFlow. Default "false": build + verify the candidate (or reuse a verified
   one), log WOULD BIND <alias>, never touch the binding - including after an earlier
   bind, so an operator's rollback sticks, and a hand-edited bound candidate is left
   alone rather than shadowed by an -r2 build. "true" binds as before. The renderer
   carries the one hand-edited line through and --check refuses anything but the
   quoted strings "true"/"false". --no-bind can only narrow it.

2. HIGH - the protected-subtree guard read `alias` on sub-flow rows. Keycloak 26.0.6
   AuthenticationManagementResource.recurseExecutions sets displayName =
   flowRef.getAlias() and flowId on a sub-flow row and never sets alias (alias is the
   CONFIG alias on authenticator rows), so the protected set was only the top-level
   alias. Sub-flows are now named by displayName (getFlows() lists top-level flows
   only, so flowId cannot be resolved through it); a sub-flow row without one leaves
   the subtree undetermined and the flow pass fail-closed. The selftest stub now
   returns 26.0.6-shaped rows, and a real run is asserted to refuse writes into
   browser-mfa-forms and browser-mfa-conditional-otp.

3. MEDIUM - PUT /flows/{alias}/executions was screened on the path alias only, but
   updateExecutions resolves the execution realm-wide by body id. body.id is now
   screened against the protected ids AND required to be in the tree this run is
   building (recorded from the build's own readback); the config POST is held to the
   same build scope; and the body may carry only id/requirement/priority (the same
   handler renames any flow named by flowId).

4. Stale "audit-only" docs rewritten (platform-config kustomization, chainsaw test,
   desired-state header and its renderer template, README) to describe what ships.

5. backoffLimit 0 (a retried deterministic build failure burns the candidate-alias
   budget); the stale "Renovate does not manage image: tags" comment corrected and the
   image pinned by index digest.

6. The ~160-line header duplicated in the YAML and the script is now kept once, in the
   script, with a short pointer above it.

Selftest: 259 assertions (was 216). mutations.py: 40 injected regressions (was 30),
including one per finding above, all caught.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-29 21:41:14 -05:00
jakman85andClaude Opus 5 f5931944fa feat(keycloak): reconcile the passkey realm config via GitOps, the browser flow blue/green
PR #72 declared the WebAuthn passwordless policy and a restructured browser-mfa
flow in the realm import. That declaration could not take effect: a
KeycloakRealmImport is a ONE-SHOT, and prod's reads Done=True / Started=False, so
every realm-level field and flow declared after the first import is inert -- in
git, applied by Flux, reported Ready, reaching the realm never. Merging it changed
nothing about how anyone logs in, and nothing anywhere said so. Same failure class
as the 2026-09-06 client-secret incident, third field over.

A SIBLING reconciler converges all three declared things every 15 minutes. It is a
sibling, not a second pass of client-secret-reconciler.yaml, so that reconciler's
allow-list -- and its guarantee that prod's real user and the media-users /
platform-admins / viewers groups are structurally unreachable -- stays literally
true. Its selftest still passes unchanged.

  pass 1  webAuthnPolicyPasswordless* -- strict read-modify-write of
          GET/PUT /admin/realms/homelab, readback-verified.
  pass 2  webauthn-register-passwordless -- strict read-modify-write of ONE
          literally-named alias; enabled, defaultAction false so enrolment stays
          opt-in.
  pass 3  the browser flow -- BLUE/GREEN.

PASS 3 NEVER MUTATES THE FLOW USERS ARE LOGGING IN THROUGH. Converging a
five-flow, ten-execution tree needs create-subflow, create-execution,
set-requirement and bind-config as SEPARATE untransacted calls; doing that to the
BOUND flow means a run dying between them leaves a half-built login path for every
SSO app and kubectl, and this repo has had a total SSO outage from a realm change.
So instead:

  1. BUILD under a NEW, unused alias (declared alias + a hash of the desired
     shape, applied to EVERY alias in the tree -- reusing browser-mfa-forms would
     mean writing INTO the bound tree). A failure leaves an orphaned, unbound flow
     and zero user-visible effect.
  2. VERIFY by readback -- levels, ordering, authenticators, requirements, and the
     conditional-OTP config CONTENTS -- before anything is bound, so the
     regression that once 403'd every platform-admin is caught BEFORE it bites.
  3. BIND with ONE atomic PUT setting browserFlow.
  4. ROLLBACK is one write; no DELETE exists anywhere in the allow-list, so the old
     flow survives as the rollback target.

The widened allow-list is made safe structurally. It cannot say "but not the bound
flow" -- its write entries are alias-parameterised -- so a second guard screens
every write against the live browserFlow's WHOLE subtree (sub-flow aliases and
execution ids) before a socket opens, FAIL-CLOSED until that binding has been
read. The create-flow endpoint carries no alias in its path, so it is screened on
its request BODY; the selftest caught that it otherwise escaped the guard.

Idempotence is load-bearing: a rebuild-and-reflip every 15 minutes would churn the
login path on a schedule. The bound flow is compared STRUCTURALLY and a match
produces zero writes and no new flow. Sub-flow and config ALIASES are deliberately
not compared -- a built flow carries a hash suffix, so comparing labels would make
it permanently unrecognisable as converged.

Single source of truth: the desired state is GENERATED from the realm import by
ci/render-keycloak-passkey-policy.py and gated with --check, so the RP ID -- baked
into every credential at enrolment and never re-keyable -- is declared once. The
pod keeps automountServiceAccountToken: false and reads a mounted ConfigMap, so no
rbac.yaml is added anywhere.

Read from Keycloak 26.0.6 source before being relied on: updateRealm
(DefaultExportImportManager 725-894) makes no getUsers/getClients/getGroups/
getRoles/getRequiredActions/getAuthenticationFlows call; it DOES read
getBrowserFlow(), which is what makes the atomic bind possible and why the policy
write pins it; the passwordless policy is applied all-or-nothing only when
RpEntityName is non-empty, with defaults substituted for omitted keys; and
updateExecutions compares rep.getPriority(), so a body omitting `priority` would
silently reshuffle the whole execution order.

Gate coverage: a new whole-repo L0 check extracts the script and runs its
--selftest (216 assertions, including a build killed at four different points each
asserting the old flow is still bound and the bound subtree was never written),
plus mutations.py (30 injected regressions, all caught) proving the selftest can
fail. An earlier iteration of this work only AUDITED the flow and left the
restructure manual; decisions/2026-10-18-keycloak-passkey-reconciler.md records
that design and why it was reconsidered.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-29 21:22:08 -05:00
jakman85andClaude Opus 5.5 aacf361bb8 fix(renovate): the workflow still named renovate.json, so every run since #79 died with ENOENT
gate / gate (pull_request) Failing after 1m58s
gate / conformance (pull_request) Has been skipped
#79 renamed the config to renovate.json5 and left configurationFile pointing at the old
name. Runs 315-322 (2026-10-22..29) all failed in ~1s before Renovate started.

Also add a ci/lint.sh assertion that every workflow configurationFile: resolves to a real
path — valid YAML, so yamllint could not catch it, and the gate stayed green throughout.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-29 20:58:15 -05:00
jakman85 1301af9a4c Merge pull request 'fix(renovate): the config was INVALID, so the first manual run errored out' (#79) from fix/renovate-invalid-config into main
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renovate / renovate (push) Failing after 9s
Reviewed-on: #79
Reviewed-by: Keith Jackson <[email protected]>
2026-10-18 14:29:34 +00:00
jakman85 42ce001d71 Merge pull request 'fix(renovate): the cron fired outside Renovate's own window, so it would never open a PR' (#77) from fix/renovate-cron-window into main
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Reviewed-on: #77
Reviewed-by: Keith Jackson <[email protected]>
2026-10-18 14:28:59 +00:00
jakman85 84bb0f0acd Merge pull request 'fix(pihole): make the split-horizon answer cacheable (local-ttl=60)' (#78) from fix/pihole-local-ttl into main
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Reviewed-on: #78
Reviewed-by: Keith Jackson <[email protected]>
2026-10-18 08:19:28 +00:00
jakman85andClaude Opus 5 0d4bd7297d fix(renovate): the cron fired outside Renovate's own window, so it would never open a PR
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.gitea/workflows/renovate.yaml shipped with `cron: "15 3 * * *"`. Gitea Actions
cron is UTC, and renovate.json carries schedule ["after 3am and before 6am"]
with timezone America/New_York -- and THAT inner schedule is authoritative:
Renovate re-checks it and declines to open PRs outside it.

  03:15 UTC  ->  23:15 EDT, the PREVIOUS EVENING in New York
  window     ->  03:00-06:00 local   =>  NOT INSIDE (3h45m early)

The original comment claimed the cron sat "slightly ahead" of the window. It
sat 3h45m behind it, on the previous day. Every nightly run would have started,
logged "not within schedule", opened ZERO PRs and exited SUCCESSFULLY -- a green
tick forever, indistinguishable from "nothing needed updating", hiding the ~30
pending updates PR #73 existed to surface.

Changed to `15 8 * * *`, chosen to survive DST rather than to look tidy:
  EDT (UTC-4): local 03:00-06:00 == 07:00-10:00 UTC
  EST (UTC-5): local 03:00-06:00 == 08:00-11:00 UTC
08:15 UTC is inside BOTH (04:15 EDT / 03:15 EST), verified by computation at
both extremes, so neither switchover needs an edit. A cron cannot follow DST.

Also confirmed while here: RENOVATE_TOKEN now exists as a repo Actions secret,
so the workflow's fail-hard preflight will pass.

STILL UNRESOLVED and the likelier remaining bug: renovate.json's
`enabledManagers` lists bare `regex`, where modern Renovate names the custom
manager `custom.regex`. If the bare name is ignored, every inline `# renovate:`
marker in the tree does nothing. Deliberately NOT changed -- guessing at a key
that could fail validation and take the whole run down is worse than a question
one dry run answers. See the handoff.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-18 03:12:28 -05:00
jakman85andClaude Opus 5 713b0c3dba fix(renovate): the config was INVALID, so the first manual run errored out
gate / gate (pull_request) Successful in 1m55s
gate / conformance (pull_request) Has been skipped
The operator ran the Renovate workflow manually and it failed. The cause is not
the workflow: renovate.json was never a valid Renovate config. It carried five
pseudo-comment keys (_comment, _kubernetes_comment, _unmanageable_comment,
_ignorePaths_comment, _docker_comment) because JSON has no comments, and
Renovate REJECTS unknown top-level options. Proven with the official validator:

  ERROR: Found errors in configuration
    Invalid configuration option: _comment
    Invalid configuration option: _docker_comment
    Invalid configuration option: _ignorePaths_comment
    Invalid configuration option: _kubernetes_comment
    Invalid configuration option: _unmanageable_comment

This is the SECOND independent reason Renovate never worked, on top of PR #77's
cron firing outside renovate.json's own schedule window. Either alone was enough
to produce "nothing ever happens"; #73 shipped both.

Converted renovate.json -> renovate.json5. JSON5 permits real // comments and
Renovate discovers renovate.json5 natively; nothing in .gitea/ or ci/ pins the
old filename and no RENOVATE_CONFIG_FILE is set. Every word of the original
rationale is preserved as positioned comments (74 comment lines) rather than
flattened into a description string.

Verified the conversion dropped nothing: 18 non-comment keys before and after,
no missing/extra keys, no changed values, docker: {enabled: true} still present.
The validator now returns "Config validated successfully".

DISPROVED while here: `enabledManagers` containing bare `regex` was suspected of
needing to be `custom.regex` (which would silently disable every inline
`# renovate:` marker). The validator accepts `regex`; unfounded, unchanged.

Renovate has still never completed a run -- this fixes one of two blockers and
nothing in the gate catches an invalid config. See the handoff.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-18 03:10:25 -05:00
jakman85andClaude Opus 5 fda5c31a94 fix(pihole): make the split-horizon answer cacheable, or one blip latches the WAN IP for 5 minutes
gate / gate (pull_request) Successful in 1m56s
gate / conformance (pull_request) Has been skipped
Operator reported DNS flapping between the cluster ingress and the router's
public IP. PiHole is not at fault -- both replicas answer 192.168.2.20
consistently (6/6 via the VIP, 8/8 from a client). The bug is an asymmetry in
CACHEABILITY that we created. Measured:

  pihole  192.168.2.23 -> 192.168.2.20               TTL=0
  public  1.1.1.1      -> wan.home.keithjackson.dev  TTL=300
  router  192.168.2.1  -> wan....  TTL=153 -> 148 -> 143   (decrementing = caching)

dnsmasq answers `address=` entries with TTL 0 unless told otherwise. The router
forwards LAN queries to PiHole and caches the result, so the CORRECT answer is
uncacheable -- re-queried on every lookup, maximum exposure to any gap -- while
the WRONG answer caches for 300s. The instant the router falls back to upstream
(standard forwarder behaviour when the target does not answer) it latches the
WAN address for the whole LAN for five minutes, then expires, re-queries PiHole,
gets TTL 0, and is immediately re-exposed.

So ONE sub-second PiHole gap -- pod restart, L2 lease move, ARP flap, kured
reboot -- becomes FIVE MINUTES of the house resolving to the WAN IP. That
asymmetry, not the gap, is why it reads as "flapping".

Fix: local-ttl=60 prepended to FTLCONF_misc_dnsmasq_lines. dnsmasq applies
local-ttl to replies made from configuration, so one directive covers all five
address= names. 60s rides out a pod restart and a lease re-election while a real
VIP change still propagates inside a minute; these VIPs are pinned and static.

apps/wave-0/pihole.yaml regenerated with the canonical render command
(--all catalog -o apps --wave-layout --no-image-automation, NOT --emit-waves);
exactly two files changed and the rendered diff is the single local-ttl prefix.

UNAPPLIED. Does NOT remove the trigger: .23 still has two independently-elected
L2 leases (as do crafty .22 and unifi .21), which the operator has parked. If
the TTL is still 0 after merge, suspect FTL silently rejecting the passthrough
line -- see the handoff.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-18 02:56:49 -05:00
jakman85 c340bbfc4b Merge pull request 'fix(conformance): one regex made the merge gate take 28 minutes instead of 2' (#76) from fix/ha-check-catastrophic-regex into main
gate / gate (push) Successful in 1m56s
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Reviewed-on: #76
Reviewed-by: Keith Jackson <[email protected]>
2026-10-18 07:51:51 +00:00
jakman85 a9a529750d Merge pull request 'fix(unattended-upgrades): Debian has no reboot-sentinel package, so ship the writer' (#75) from fix/unattended-upgrades-debian-sentinel into main
gate / conformance (push) Has been cancelled
gate / gate (push) Has been cancelled
Reviewed-on: #75
2026-10-18 07:40:20 +00:00
jakman85andClaude Opus 5 793c3940a8 fix(conformance): one regex made the merge gate take 28 minutes instead of 2
gate / gate (pull_request) Successful in 1m55s
gate / conformance (pull_request) Has been skipped
ha-control-plane-as-code/check.sh had:

  re.search(r"--server https://.*?\n(?:.*\n){0,10}?\s*when:...'secondary'",
            K3S_TEXT, re.S)

With re.S every `.` matches newlines, so `.*?` and the nested `(?:.*\n){0,10}?`
can each consume the whole document -- nested unbounded repetition, which
backtracks exponentially on a failed or late match. MEASURED in CI via
`docker top` on the live job container: python3 at 19:54 of CPU time, which is
essentially the entire ~28 minute gate.

Localised to the exact line by extracting the inline python and running it under
faulthandler.dump_traceback_later, which named re/__init__.py:177 in search from
this call -- not inferred from reading.

Replaced `.` with `[^\n]*` and dropped re.S, so the {0,10} is a real ten-line
window with nothing to backtrack into. On the real input (22,179 chars):
0.2 ms, match still found. Whole check: 0.199s, rc 0, 115 assertions, identical
success message.

WHY IT SURFACED NOW, AND IT WAS MINE: K3S_TEXT is every *.yml in
roles/k3s_server concatenated. The regex was latent for as long as it existed;
PR #71 added ~100 lines to that role (kubelet graceful-shutdown config), growing
the input past the point where exponential backtracking stopped being
survivable.

WHY ONLY infra/** WAS SLOW: touched-requirements.sh maps infra/* to R-ENV-01, so
the L0 run becomes --include-scope whole-repo --requirements R-ENV-01, which
selects this whole-repo check. Doc/platform changes never did -- #69 1m55s and
#72 1m53s stayed fast while #71 27m44s, the #73 merge 27m46s and #75 all ran
~28m.

The pattern is unique in the repo (grep over all l0-static check.sh files).
Not re-timed in CI post-fix; this PR's own run is the first datapoint.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-18 02:38:23 -05:00
jakman85andClaude Opus 5 ef8ef5ac29 fix(unattended-upgrades): Debian has no reboot-sentinel package, so ship the writer
gate / gate (pull_request) Successful in 27m51s
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The first real run failed on all three nodes:

  fatal: [k3s-prod-1]: "No package matching 'update-notifier-common' is available"

update-notifier-common is an UBUNTU package and does not exist in Debian --
`apt-cache policy` returns Candidate: (none) on trixie. The role asserted it
"owns the hook that creates /var/run/reboot-required", which is true on Ubuntu
and false here, so the role could never have worked.

Three further measurements settled the replacement: notify-reboot-required is
absent; NO linux-image-* postinst references it (invoking it is an Ubuntu patch,
so dropping a script at that path would never be called); and no hook under
apt.conf.d or /etc/kernel mentions reboot-required. Debian trixie ships no
mechanism at all.

So the role now provides it:
* /usr/local/sbin/k3s-notify-reboot-required -- touches the sentinel when the
  running kernel is not the newest installed, using `linux-version` (from
  linux-base, a dependency of every linux-image, measured present) because
  kernel version ordering is not string ordering.
* /etc/apt/apt.conf.d/99-k3s-reboot-required -- DPkg::Post-Invoke, `|| true` so
  it can never abort an apt transaction.
/run is tmpfs (measured), so the sentinel self-clears on boot; no cleanup task.

The verify assert was ALSO weaker than it looked: a `find` glob for
*update-notifier* / *unattended-upgrades* under apt.conf.d would have matched
Debian's own unattended-upgrades conffile and reported "writer present" while
none existed. It now stats the two exact paths this role owns and requires the
script to be executable.

Newly verified: the script ran on prod-1 as unprivileged k3s under sh -x --
running=newest=7.1.8+deb13-amd64, took the equal branch, exited 0, wrote
nothing. Correct. sh -n and bash -n clean.

Still unverified: the WRITING half never executes while running == newest, so
the sentinel has not been seen created and kured has not been seen react. The
honest test is the next kernel upgrade.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-18 01:43:43 -05:00
jakman85 ee196c7bcd Merge pull request 'feat(upgrades): automate node reboots (kured) and wire Renovate, which had never run' (#73) from feat/automated-upgrades into main
gate / gate (push) Successful in 27m46s
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Reviewed-on: #73
Reviewed-by: Keith Jackson <[email protected]>
2026-10-18 06:28:30 +00:00
jakman85 83d3568150 Merge pull request 'feat(shutdown): configure graceful node shutdown, and never scale a Delete-policy StatefulSet' (#71) from feat/graceful-cluster-shutdown into main
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Reviewed-on: #71
2026-10-18 05:51:20 +00:00
jakman85 24bea918ab Merge pull request 'fix(coredns): hold in-cluster DNS at 2 replicas via an HPA, because k3s owns the Deployment' (#74) from fix/coredns-ha into main
gate / conformance (push) Has been cancelled
gate / gate (push) Has been cancelled
Reviewed-on: #74
2026-10-18 05:50:46 +00:00
jakman85andClaude Opus 5 5642881c4d fix(coredns): hold in-cluster DNS at 2 replicas via an HPA, because k3s owns the Deployment
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MEASURED on prod 2026-10-18: kube-system/coredns had replicas: 1. In-cluster
DNS was a single pod on a single node, so draining or rebooting that node was a
CLUSTER-WIDE in-cluster DNS outage until the pod rescheduled -- every Service
lookup, every CNPG replica finding its primary, every operator addressing the
API by name. It was invisible because 1/1 Ready looks healthy.

It is urgent rather than latent now: the scheduled reboot automation on
feat/automated-upgrades drains and reboots one node at a time, unattended,
overnight -- turning a single point of failure into a recurring one.

WHY AN HPA AND NOT replicas: 2 -- the whole decision. k3s OWNS the coredns
Deployment: AddOn/coredns, source /data/k3s/server/manifests/coredns.yaml,
managedFields managers deploy@k3s-prod-1 + k3s, objectset.rio.cattle.io/hash
label. k3s re-stages its bundled manifests on startup, so replicas: 2 written
there -- or a kubectl scale -- is reverted on the next restart or upgrade.

Rejected alternatives:
* coredns.yaml.skip + our own templated copy (the roles/kube_vip pattern).
  Deterministic, but takes ownership of coredns from k3s permanently so k3s
  upgrades stop updating it. Too high a price for a replica count.
* A Flux patch of the Deployment. Rejected outright: Flux and k3s's deploy
  controller would both own one object and fight -- the default-deny
  NetworkPolicy drift-loop shape (~2500 events/10min) this cluster already hit.

An HPA is a separate object k3s does not own, driving /scale rather than the
Deployment spec, so there is no shared-ownership fight; if k3s re-stages
replicas: 1 it is re-asserted within a reconcile. Disclosed cost: a brief
window at 1 replica after a k3s restart.

It is a FLOOR-HOLDER, not an autoscaler -- the CPU metric exists only so the
autoscaling/v2 object is valid. Measured: 5m/4m against a 100m request (~5%),
so the 80% target is never approached. scaleDown stabilization 600s because DNS
is the worst thing to flap; scaleUp immediate, since that restores redundancy.

The kustomization edit is ADDITIVE: platform/coredns/ already existed and holds
the coredns-custom split-horizon ConfigMap (R-DNS-01/03), which is untouched.

UNAPPLIED. The HPA has never run, and the claim that k3s reverts replicas on
restart is reasoned, not observed. After merge check `describe hpa coredns` for
ScalingActive=True -- an inert HPA looks identical to a working one because the
hand scale already left 2 replicas. See the handoff entry.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-18 00:44:09 -05:00
jakman85 4d489f2059 Merge pull request 'feat(keycloak): add passkey (WebAuthn passwordless) login, additive and optional' (#72) from feat/keycloak-passkeys into main
gate / gate (push) Successful in 1m53s
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Reviewed-on: #72
2026-10-18 05:44:03 +00:00
jakman85andClaude Opus 5 a2440a3125 feat(upgrades): automated OS reboots (kured) + security-only unattended-upgrades, and give Renovate a runner
gate / gate (pull_request) Successful in 1m57s
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Two halves of one repeatable upgrade process. Neither works alone.

(a) OS upgrades and reboots

platform/kured/ — Kubernetes Reboot Daemon, chart 6.1.0/app 1.23.0, in its own
Flux Kustomization (dependsOn platform, wait:true). NOT in platform/kustomization.yaml:
that tier gates platform-config and every apps wave, so a wedged reboot daemon there
could stall every application. A component added to make maintenance safer must not be
able to cause an outage.

infra/ansible/roles/unattended_upgrades/ — new role (node_baseline is touched by other
open branches, and this is a different lifecycle), enabled for prod in group_vars.

The human gate is the SENTINEL, which is how this honours node_baseline's "IT DOES NOT
REBOOT" (k3s-prod-2 hung on a warm reboot 2026-09-03) and cluster-upgrade-plan.md's
rejection of automating away the gate between nodes: u-u is security-only with the
kernel blacklisted, so it essentially never writes /var/run/reboot-required. That file
appears when an operator deliberately runs node-baseline.yml --tags kernel. kured then
does only the mechanical half, including the ordering rule node_baseline has to shout.

Quorum: concurrent reboots are structurally impossible, not merely unlikely.
concurrency:1 plus kured's single lock annotation (API-server optimistic concurrency),
and lockTtl:0 — an expiring lock is exactly the 3-node etcd catastrophe, so a hung node
holds it forever and nothing cascades.

Longhorn: measured 25 volumes x 3 replicas, hard anti-affinity, 600s replenishment wait,
serialized rebuild — so every drain degrades ALL volumes to 2/3 and the inter-node gate
must be volume robustness, not pod readiness. Doubled: lockReleaseDelay 30m
(unconditional) plus kured's Prometheus alert gate (semantic).

alertFilterMatchOnly:true is load-bearing — the flag inverts the regexp's meaning, and
under the chart default kured would have been blocked on day one by the five alerts
measured firing with no end in sight, and never rebooted anything.

Kernel floor (kernel >= 6.13, EFI memattr): excluded TWICE. The running kernel comes
from o=Debian Backports, which is not an allowed origin, so u-u cannot see a kernel
upgrade; and ^linux- is blacklisted anyway so widening origins later cannot re-arm it.
Asserted against apt-config dump, not against the file just written. 6.12 kernels are
still installed and bootable on all three nodes, and nothing was held.

Closes a silent no-op: update-notifier-common was absent on all three nodes, so NOTHING
could create the sentinel. kured alone would have idled forever at 1/1 Running.

platform/kured/alerts.yaml — three rules over kured's only metric, with a companion
promtool suite pinning each both ways, plus runbooks/node-reboot-automation.md.
Window is DAILY 03:00-06:00 because a weekly one forces for:8d, longer than this
cluster's 7d Prometheus retention.

(b) Image/dependency automation

Renovate was aspirational: renovate.json present and complete, with no workflow, no
in-cluster workload, and its docker+kubernetes managers disabled — so every plain
image: tag was maintained by nothing while seven files claimed otherwise.

.gitea/workflows/renovate.yaml — scheduled daily, dry_run default true for a safe
first run, and a preflight that FAILS (not skips) without RENOVATE_TOKEN, because a
skipped Gitea job reports success and that is how this stayed inert.

Renovate now owns both halves; Flux image-automation is formally closed: it pushes
commits rather than opening PRs (bypassing CLAUDE.md §1), and it cannot work here
anyway — main is protected user_can_push:false and the flux-system GitRepository has
no secretRef. Its controllers are installed and have idled 43 days with zero CRs.

conformance/: +34/-0, one new SCRAPE_OWNERS entry claiming kured_. Weakens nothing;
tightens the check for this component (requires service.create+metrics.create, both
chart-default false, plus a companion NetworkPolicy requirement). Required because
assertion (3) fails an alert over an unclaimed metric and KNOWN_UNWIRED_METRICS is
shrink-only.

Sensitive paths touched: clusters/**, conformance/**, .gitea/** — needs a non-author
approving review; /approve-override deliberately NOT posted.

NOT verified: no OS upgrade run, no node rebooted, no lock observed, the Ansible role
never executed, and whether CNPG switches its primary on a drain-induced eviction (the
most likely way the first real reboot fails). Full list in the handoff entry.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-18 00:10:29 -05:00
jakman85andClaude Opus 5 16894b7b73 feat(keycloak): declare passkey (WebAuthn passwordless) login for the homelab realm
gate / gate (pull_request) Successful in 1m53s
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Adds the realm's WebAuthn Passwordless policy and restructures the browser-mfa
flow so a passkey is an ALTERNATIVE beside the password form. Additive and
optional by design: this IdP gates every SSO app plus kubectl, so a mandatory
passkey flow that misfires is a total lock-out. Enrolment is not forced.

Policy: RP ID is ${BASE_DOMAIN} (not the keycloak host) because a passkey's RP ID
is fixed at enrolment and must not be bound to a name that can move; resident key
required (a non-discoverable credential is a second factor, not a passkey); user
verification required (without it, possession alone is a complete login).

Flow: auth-username-password-form is split into auth-username-form +
auth-password-form, because the server must know who is logging in before it can
decide whether a passkey exists. Conditional OTP for platform-admins is relocated
intact onto the password branch only — a UV-required passkey is already two
phishing-resistant factors.

No requiredActions block is declared, deliberately: Keycloak 26.0.6 treats
requiredActions as REPLACE not merge, so declaring one would delete the default
set including CONFIGURE_TOTP and lock every platform-admin out of the OTP step
this flow still enforces. webauthn-register-passwordless is already registered
enabled-but-not-default by Keycloak's own defaults.

UNAPPLIED: the realm import is a one-shot resting at Done=True/Started=False, so
this reaches the live realm never. See the handoff entry and the README section.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-17 23:23:36 -05:00
jakman85 1a0b20857a Merge pull request 'fix(oauth2-proxy): gate startup on Keycloak discovery, or a cold boot CrashLoops the proxy' (#70) from fix/oauth2-proxy-oidc-startup-race into main
gate / gate (push) Successful in 1m52s
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Reviewed-on: #70
2026-10-18 04:14:52 +00:00
jakman85andClaude Opus 5 c150327a30 fix(oauth2-proxy): gate startup on Keycloak discovery, or a cold boot CrashLoops the proxy
gate / gate (pull_request) Successful in 1m53s
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Exposed by the 2026-10-17 whole-cluster shutdown. oauth2-proxy performs OIDC
discovery ONCE at startup and exits 1 if it fails. On a cold boot Keycloak is
not serving yet, the shared Gateway answers 503, and the proxy dies:

  [provider.go:55] Performing OIDC Discovery...
  [main.go:73] ERROR: Failed to initialise OAuth2 Proxy: ... failed to discover
               OIDC configuration: unexpected status "503": no healthy upstream

It then sits in exponential CrashLoopBackOff long after Keycloak is healthy --
one replica was still down minutes later and only a manual pod delete cleared
it. There is no retry flag, a readinessProbe cannot help (the container is
already dead), and CrashLoopBackOff backoff is not tunable per-pod.

Add an extraInitContainers gate (wait-for-idp) that polls the discovery doc
until it answers. A pod in Init accrues no CrashLoopBackOff backoff and retries
promptly. BOUNDED and FAILS OPEN: after ~5m it starts the proxy anyway, so the
worst case is exactly today's behaviour and never something new.

extraInitContainers is the chart's OWN hook for this -- its commented example is
literally `- name: wait-for-idp` -- and the key was CONFIRMED against the pinned
chart (helm show values, 10.7.1) rather than assumed, because a wrong Helm values
key is silently ignored. No new base image: the chart already runs an alpine init
container for its built-in waitForRedis gate; pinned to 3.22 (verified upstream)
rather than the chart's `latest`.

Rejected: Flux postRenderers (no precedent in this tree, and the chart has a
hook); --skip-oidc-discovery (removes the fetch entirely, but needs four
hardcoded endpoints and I could not verify lazy-JWKS offline -- this component
gates SSO for seven apps, so the additive option wins).

Shell vars are written BARE with no braced form: platform declares
postBuild.substituteFrom, and envsubst would blank a braced shell variable and
silently break the loop. Same convention as the gitea/nextcloud OIDC hooks.

UNAPPLIED; the init container has never run, and the race was not re-created to
prove the fix. Check the init container's log on first apply. See the handoff.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-17 22:47:30 -05:00
jakman85andClaude Opus 5 2f2e98aa19 feat(shutdown): configure graceful node shutdown, and never scale a Delete-policy StatefulSet
gate / gate (pull_request) Successful in 27m44s
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All three nodes had to be powered off to move them onto a UPS, and there was
NO procedure: infra/cluster.sh stop is virsh-based and only ever applied to the
decommissioned dev cluster. The sequence was improvised live. Two defects came
out of doing it.

1. GRACEFUL NODE SHUTDOWN WAS UNCONFIGURED ON EVERY PROD NODE. No
   shutdownGracePeriod anywhere in infra/ansible/, so `shutdown -h` stopped k3s,
   containerd went with it, and every pod was SIGKILLed where it stood -- 9 CNPG
   instances mid-checkpoint, the UniFi VM, 25 attached Longhorn volumes.
   roles/k3s_server now sets kubelet-arg shutdown-grace-period=90s and
   shutdown-grace-period-critical-pods=20s.

   The half that silently defeats the other half: this is enforced by LOGIND,
   not the kubelet. The kubelet holds an inhibitor DELAY lock and systemd waits
   at most InhibitDelayMaxSec -- DEFAULT 5 SECONDS -- then proceeds regardless,
   truncating the drain with no error. The role ships a logind.conf.d drop-in
   (120) and ASSERTS cap >= grace period, because the failure is invisible.

2. SCALING A StatefulSet TO 0 DELETED ITS PVC AND VOLUME. monitoring/loki
   carries persistentVolumeClaimRetentionPolicy whenScaled: Delete, so the
   quiesce destroyed storage-loki-0 outright. Loki stores type: filesystem, so
   that PVC was the only copy; 72h retention bounded the loss, the mechanism
   does not. Symptom was the volume count going 25 -> 24, first misread as a
   miscount. Repaired: scale back to the declared 1 recreated the PVC and
   loki-0 is 2/2 Running.

New infra/maintenance/quiesce.sh (quiesce|resume|status) encodes the sequence
that worked and REFUSES to scale any whenScaled: Delete StatefulSet -- it stays
running, its volume hard-detaches, and it rebuilds on restart. A rebuild beats
a deletion. Discovery is computed from the live cluster, so a newly onboarded
service needs no edit here.

runbooks/cluster-maintenance-shutdown.md is the operator page: order in both
directions, TrueNAS-after-nodes (hard NFS mount wedges kubelet), the
un-hibernate-Postgres step Flux will NOT do for you, and a "looks broken but is
fine" section separating the 4/19 Flux cascade, the degraded-and-rebuilding
volume and the self-recovering keycloak-operator from the one thing that needs
a human (a stuck oauth2-proxy replica).

THE KUBELET CHANGE HAS NEVER BEEN APPLIED OR TESTED -- it needs a rolling k3s
restart, which is an operator action. Review config.yaml's kubelet-arg before
applying: a bad config.yaml is how k3s fails to come up. See the handoff entry.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-17 22:26:47 -05:00
jakman85 9a41a8e1e5 Merge pull request 'Expand plex volume' (#68) from plex/volume-expamsion into main
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Reviewed-on: #68
2026-10-10 16:13:46 +00:00
jakman85 0132c680b3 Update apps/wave-0/plex.yaml
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2026-10-10 16:09:53 +00:00
jakman85 439b35a3f0 Expand plex volume
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2026-10-10 13:55:15 +00:00
jakman85 e89df78210 Merge pull request 'fix(bulk-nfs): repoint at the TrueNAS (192.168.2.30); the PVs must be recreated, not reconciled' (#67) from fix/bulk-nfs-truenas into main
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Reviewed-on: #67
Reviewed-by: Keith Jackson <[email protected]>
2026-10-07 06:26:44 +00:00
jakman85andClaude Opus 5 0747849837 fix(bulk-nfs): repoint at the TrueNAS (192.168.2.30); the PVs must be recreated, not reconciled
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Both ZFS pools moved off the Proxmox host onto a standalone TrueNAS on
192.168.2.30 -- prod's OWN /24, so the pfSense crossing that made this knob
load-bearing is gone, along with the DNAT at 192.168.2.102 it mounted through.
Measured 2026-10-07: 192.168.2.102:2049 no longer answers; .30:2049 and :111 do.

BULK_NFS_SERVER -> 192.168.2.30 in prod, base and dev. The dev value is marked
inert (dev is decommissioned); it carries the real address only so nothing in
the tree renders a host that no longer exists.

THE OPERATIONAL POINT, and why this is not just a value change: a bound
PersistentVolume's NFS source is immutable. Server dry-run, 2026-10-07:

  spec.persistentvolumesource: Forbidden: spec.persistentvolumesource is
  immutable after creation

so Flux's apply FAILS rather than updating, and the pods keep their old, dead
mount. The five PVs must be deleted and recreated -- safe, because Retain never
touches data and render.py emits a pre-set claimRef so each PV rebinds its own
PVC. The sequence is docs/BULK-NFS-STORAGE.md section 10 and is an OPERATOR
action; this commit does not perform it.

Pairs with the hazard already on the page: spec.nfs.server is unvalidated at
create (any string binds) and immutable at update. A wrong value is accepted
silently and then cannot be corrected in place.

docs/BULK-NFS-STORAGE.md: sections 1 and 5 rewritten for TrueNAS -- the measured
exports, the service settings that decide whether uid 1000 survives the wire,
the three stale ZFS sharenfs properties that had to be cleared, and the ACL
hazard (acltype=nfsv4 + aclinherit=passthrough means one click in the ACL editor
propagates to the whole future library). Section 7 rewritten now that the
placeholder is gone, section 9 retargeted from dev to prod, section 10 new.
Sections 2/3/4/6 are unchanged by the move.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-07 01:15:04 -05:00
jakman85 ad37acdf53 Merge pull request 'fix(vpn-ingress): content-hash the peer register, or a merged peer never reaches the tunnel' (#66) from fix/peers-configmap-content-hash into main
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Reviewed-on: #66
2026-10-06 07:58:49 +00:00
jakman85andClaude Opus 5 2acfed460a fix(vpn-ingress): content-hash the peer register, or a merged peer never reaches the tunnel
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The operator enrolled a phone, merged the peer, and `wg show` listed none.
Measured on prod 2026-10-06 with the peer already on main:

  live wg-peers ConfigMap, active AllowedIPs .. 0
  DaemonSet volume reference ................. configMap.name: wg-peers (FIXED)
  DaemonSet generation/observedGeneration .... 1 / 1   (never rolled)
  init container, all three pods ............. "0 peer(s)"

Part of it was just the 10m reconcile interval. The defect is the fixed name:
Flux updates a fixed-name ConfigMap IN PLACE, so the pod template is
byte-identical, so no rollout is triggered -- and the init container assembles
wg0.conf ONCE at pod start into a tmpfs, so the running tunnel keeps the old
peer list indefinitely. Adding or revoking a peer had no effect until something
unrelated restarted the pods. For a REVOCATION that is a security defect, not
an inconvenience: delete a stanza, see a green PR, device keeps working.

The runbook and README both claimed "PR -> merge -> Flux rolls the DaemonSet".
Never true. And this repo already documents the fix, in a file I had read --
runbooks/kustomization.yaml: "The generated name carries kustomize's content
hash, so editing any runbook rolls the server automatically and a stale
projection is impossible."

So: peers.yaml (inline ConfigMap) -> peers.conf (plain file) + a
configMapGenerator. The operator's enrolled peer is carried across verbatim.
Every line is WireGuard config and `#` is a legal comment there, so the
documentation now lives inside the file that is actually mounted.

`namespace: vpn-ingress` on the kustomization is REQUIRED, not tidiness: a
generated ConfigMap inherits no namespace, everything else here declares
vpn-ingress, and kustomize's nameReference will not rewrite across a namespace
boundary -- without it the build mounts the unhashed name and the pods wedge on
a missing volume. Caught only by building the output and reading the volumes.

new-peer.sh: PEERS_FILE repointed, and a missing register is now FATAL rather
than skipped -- the old `[ -r "$PEERS_FILE" ] && grep ...` guard meant that
after the rename the only symptom would have been duplicate detection quietly
never firing again. Stale peers.yaml references swept from six files including
the script's own user-facing output.

Verified: the DaemonSet now mounts wg-peers-m9kcckcb5t; the hash tracks content
(edit -> dgg7ht9c74 -> restore -> m9kcckcb5t); the enrolled peer is byte-identical
to main's; and `new-peer.sh dupe 2` is now correctly refused by the operator's
real allocation.

No sensitive paths; merges on a green gate.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-06 02:55:59 -05:00
jakman85 e1bebb857e Merge pull request 'Added my phone to peers' (#65) from vpn/add-keith-phone into main
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2026-10-06 07:42:04 +00:00
jakman85 23db97b958 Added my phone to peers
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2026-10-06 02:39:23 -05:00
jakman85 5928d8153c Merge pull request 'fix(vpn-ingress): new-peer.sh counted its own commented-out example as an allocated address' (#64) from fix/new-peer-ignores-template-comments into main
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Reviewed-on: #64
2026-10-06 07:31:03 +00:00
jakman85andClaude Opus 5 146dd9a906 fix(vpn-ingress): new-peer.sh counted its own commented-out example as an allocated address
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The first real enrolment failed:

    $ ./infra/vpn-ingress/new-peer.sh keith-phone 2
    new-peer.sh: 10.90.0.2/32 is already allocated ... Pick another octet.

Nothing was allocated -- peers.yaml had zero peers, as the pod's init
container reported (`0 peer(s)`). The duplicate-address check grepped the
whole file, and peers.yaml line 66 is a COMMENTED-OUT example stanza I wrote
containing literally `#   AllowedIPs = 10.90.0.2/32`. So .2 -- the first
address anyone would ask for, and the one my own runbook uses as its example
-- was permanently un-allocatable, with a message asserting the opposite of
the truth.

Fixed on both sides, because either alone leaves the trap half-set:

  * the check strips comment lines before matching, which is the correct
    predicate rather than a patch: a real stanza's AllowedIPs line is never
    commented, while the template and every peer's `# <name> — <owner>` label
    always are.
  * the example now uses placeholders that cannot match anything real
    (`10.90.0.<octet>/32`, `<device-name>`), so a future grep cannot be fooled
    by it either.

The bug class is worth naming: a documentation example that is byte-identical
to real data will eventually be parsed as real data. This is its third
instance in this component -- flux-postbuild-substitution flagged a `${...}`
written inside a comment explaining that hazard, and no-plaintext-secrets
flagged the .sops.yaml.example because a kustomization named it in a comment.
Make examples structurally unmatchable, not merely commented out.

Verified by running it: .2 now renders a profile (via the real
`sops -d | wg pubkey` path, which this also proves against the operator's
actual key for the first time), and an uncommented duplicate stanza is still
correctly refused.

No sensitive paths; merges on a green gate.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-06 02:28:37 -05:00
jakman85 d1c07fe021 Merge pull request 'fix(vpn-ingress): stop trying to set net.ipv4.ip_forward — a hostNetwork pod cannot, and wg-quick dies on a failed PostUp' (#63) from fix/vpn-ingress-ip-forward into main
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2026-10-06 07:09:34 +00:00
jakman85andClaude Opus 5 5c43fbac65 fix(vpn-ingress): stop trying to set net.ipv4.ip_forward — a hostNetwork pod cannot, and wg-quick dies on a failed PostUp
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The tunnel never came up on its first reconcile with a real key. One line of my
own manifest was the whole cause. Measured on prod 2026-10-06:

    [#] ip link add dev wg0 type wireguard        <- fine
    [#] wg addconf wg0 /dev/fd/63                 <- fine
    [#] ip -4 address add 10.90.0.1/24 dev wg0    <- fine
    [#] ip link set mtu 1420 up dev wg0           <- fine
    [#] sysctl -q -w net.ipv4.ip_forward=1
    sysctl: permission denied on key "net.ipv4.ip_forward"
    [#] ip link delete dev wg0
    **** Tunnel failed, will stop all others! ****

Not a missing capability: with hostNetwork the runtime mounts /proc/sys
READ-ONLY (confirmed in the pod's /proc/mounts), because those sysctls are the
HOST's globals. CAP_NET_ADMIN cannot lift a read-only mount, so the write can
never succeed here -- and wg-quick treats a failed PostUp as fatal, so it
deleted the interface it had just built.

The line was never needed. node_baseline already sets ip_forward=1, and reading
it from the pod returns 1. My header comment said exactly that ("so no pod
sysctl is needed") and then emitted the sysctl anyway, justified as "re-asserted
so this component does not silently depend on another role's sysctl file". That
defensive re-assertion is the entire outage. In a hostNetwork pod: VERIFY host
state, never write it.

Replaced with a read in the init container -- `grep -qx 1
/proc/sys/net/ipv4/ip_forward` -- failing closed with a message naming the
node_baseline role. Still fail-closed on purpose: a tunnel that comes up unable
to forward satisfies every probe here and silently drops all client traffic.

Also documents, in the manifest and the runbook, that the image's `chown:
Operation not permitted` run and its "we will not provide support for it"
warning are expected and harmless -- capabilities are dropped to NET_ADMIN so
its s6 init has no CAP_CHOWN, /config is a writable tmpfs, everything runs as
root, and wg-quick proceeds (it did; the failure was 30 lines later).

Three other unknowns closed by the same reconcile, now recorded in the README:
the kernel module reaches the pod (ip link add type wireguard works, no
CAP_SYS_MODULE needed); allowPrivilegeEscalation:false does NOT break the s6
init; and the image's iptables is nf_tables (xtables-nft-multi) matching Debian
13, which closes the worst documented fear -- rules landing in a table the
kernel never consults.

No sensitive paths; merges on a green gate with no override.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-06 01:30:08 -05:00
jakman85 cf7d5e4316 Merge pull request 'Changed secret' (#62) from feature/add-private-key-for-wireguard into main
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Reviewed-on: #62
2026-10-06 06:18:13 +00:00
jakman85 be23cf3e26 Changed secret
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2026-10-06 01:11:56 -05:00
jakman85 4791653f2b Merge pull request 'fix(vpn-ingress): keep the server key in source through SOPS, not as an out-of-band Secret' (#60) from fix/vpn-server-key-in-sops into main
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Reviewed-on: #60
Reviewed-by: Keith Jackson <[email protected]>
2026-10-06 06:09:04 +00:00
jakman85 523f482957 Merge pull request 'fix(node): pin gitea to the Gateway VIP — the failing certificate was the router's, not the Gateway's' (#59) from docs/pm-agent-registry-pull-prereq into main
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Reviewed-on: #59
2026-10-06 05:51:22 +00:00
jakman85andClaude Opus 5 8059297036 fix(devcontainer): bake wg + qrencode into the image instead of splitting the VPN procedure across host and container
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Operator correction: "sop, wg, and any other tool requirement is supposed to be
baked into the devcontainer."

My previous commit discovered that `wg` existed only on the host, `sops` only in
the container, and `qrencode` on neither -- and fixed it the wrong way, by
splitting every step of the key procedure across the boundary and telling the
operator to `dnf install qrencode` on their workstation. That breaks CLAUDE.md §5
and the devcontainer README's "Don't install the toolchain on the host", produces
a procedure that cannot be reproduced in CI, and is miserable to follow.

wireguard-tools + qrencode are now distro packages in the Containerfile. Both are
in Fedora 44's repos (wireguard-tools 1.0.20260223 -- the same upstream version as
the image this component runs -- and qrencode 4.1.1), unpinned like every other
dnf package there: the pinned thing is the Fedora base, and neither is a gate tool
whose version changes what green means.

Three things got SIMPLER rather than merely relocated, which is the tell that the
rule was right:

  * Step 2 is one pipeline in one shell -- `sops set ... "$(wg genkey)"` writes the
    key straight into the already-encrypted document. No staged copy in .cache, no
    `*.key`-suffix warning, no sha256 comparison to prove the right bytes landed.
  * new-peer.sh derives the server public key from wg-server-key.sops.yaml itself
    (`sops -d --extract | wg pubkey`), so there is no local key copy to keep in
    step with the encrypted one, and no magic host path it must live at.
  * `.cache/` is gitignored at the repo root (mirroring infra/ansible/.gitignore),
    giving the container a persistent non-committable scratch dir. new-peer.sh
    writes profiles to .cache/wg-peers/ -- necessary because the repo bind-mount is
    the container's only persistent read-write mount, so a profile in /tmp there is
    gone before it can reach a desktop. Its blanket "refuse to write inside the
    checkout" guard is now a `git check-ignore` test of the real property.

Verified by execution, not reasoning: the image rebuilds; wg/qrencode/sops all
resolve in it; `sops -d | wg pubkey` runs in one shell; new-peer.sh refuses the
REPLACE-ME placeholder with an actionable message; and a full run with a throwaway
server key renders a correct profile at 0600 under a 0700 gitignored dir, prints
the QR, and refuses a non-ignored destination inside the repo.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-06 00:48:32 -05:00
jakman85andClaude Opus 5 90a79d29d3 docs(node): name the exact Ansible command that applies the pin, not 'run the play'
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Node configuration in this project is Ansible's — declared in the inventory, reviewed,
version-controlled — and for prod it is the ONLY surface: infra/PROD-PROVISIONING.md
records prod as 3x bare metal with the dev OpenTofu -> Proxmox -> cloud-init path
explicitly not applying, so there is no tofu/cloud-init half to keep in parity for an
/etc/hosts pin.

The pin was already in the right place; what the docs lacked was the command. All four
places now carry the scoped, idempotent one:

    cd infra/ansible && ansible-playbook playbooks/node-baseline.yml \
      -e k3s_hosts=k3s_prod --tags hosts

--tags hosts runs ONLY the /etc/hosts task, so applying this pin cannot drift any other
baseline setting.

Also verified the mechanism is not inert, which is the failure mode this repo keeps
meeting: roles/node_baseline/tasks/main.yml renders node_baseline_hosts_pins into a marked
blockinfile with backup: true, and state: absent when the list empties — so a removed
entry really does leave the node.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-06 00:44:26 -05:00
jakman85andClaude Opus 5 523a463fd7 fix(node): pin gitea to the Gateway VIP — containerd was resolving it to the non-hairpinned WAN
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The pm-agent image pull failed TLS verification, and the previous entry on this branch
recorded it honestly as not diagnosed. Diagnosed now, and it is not about the image.

containerd pulls as a NODE process, so it resolves through node_baseline_dns_servers (the
LAN gateway, deliberately not PiHole) and gets the public answer: a CNAME to
wan.home.keithjackson.dev -> 136.51.115.252, measured via both 1.1.1.1 and 8.8.8.8. This
router does not hairpin, so WAN:443 answers with its own placeholder certificate —
measured with the right SNI from the workstation:

    subject=C=ZZ, ST=Somewhere, L=Unknown, O=%D342e7e6b, CN=%D
    No extensions in certificate

No extensions means no subjectAltName, which is exactly 'certificate is not valid for any
names'. Meanwhile 192.168.2.20 IS the shared Gateway's VIP and its https listener serves
the real Let's Encrypt *.home.keithjackson.dev. The Gateway, the wildcard cert and the
digest were never implicated — only the node's answer.

This file already documents the identical failure for the Keycloak issuer, measured from
k3s-prod-2/-3 on 2026-10-03 (curl exit 60, ssl_verify_result=18), and already carries the
mechanism that fixes it. gitea is simply the second node process to need it; containerd is
a node process and nobody had added it. An operator must run the node_baseline play.

Also records, where an operator reads them, that the agent authenticates to Gitea with a
local account and a scoped PAT by decision — and why the federated alternative is not
merely unchosen but unavailable: Gitea implements only the Authorization Code Grant and
validates no third-party OIDC token, so a Keycloak service-account token cannot
authenticate to its API or to git-over-HTTP.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-06 00:35:18 -05:00
jakman85andClaude Opus 5 e35612dc7e fix(vpn-ingress): keep the server key in source through SOPS, not as an out-of-band Secret
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Operator correction: secrets are kept in source through sops. #55 shipped the
WireGuard server private key as a Secret to `kubectl create` by hand. Two real
costs, not just a convention break:

  * R-SEC-01 / spec docs/07 -- secrets live in source, SOPS-encrypted, and
    reach the cluster only through Flux.
  * It broke DR for the one credential that cannot be re-derived. A rebuild
    restores everything in git; it does not restore a hand-made Secret, and
    losing this key means re-enrolling EVERY device, because each client
    profile pins its public half. #55 papered over that with "keep a copy in
    your password manager".

(Note secret-provenance did NOT forbid the original shape -- it scopes to
app-namespace=true and vpn-ingress is deliberately a platform namespace. The
rule broken was the written requirement, not an enforced control.)

An agent still must not mint a long-lived private key (CLAUDE.md §6), so the
file is committed ALREADY ENCRYPTED with `privatekey: REPLACE-ME`. That makes
the wiring complete and green from the first commit -- resource line plus both
overlay decryption patches -- leaving the operator exactly one act: replace the
value. A commented-out resource to uncomment later is the "in git, no generator
entry, reviewed, merged, still broken" shape this repo keeps hitting.

The init guard is now a validation rather than an emptiness check: the value is
piped through `wg pubkey`, which accepts only a real curve25519 private key, and
the pod names which case it hit -- placeholder, empty, mangled, or (the silent
one) still `ENC[` ciphertext because an overlay is missing its decryption patch,
which otherwise applies cleanly with every Flux condition green.

Second, independent finding that also fixes #55's step 2: `wg` is on the HOST
only and `sops` is in the CONTAINER only, so `sops -d | wg pubkey` cannot run in
one shell -- the command #55 documented could not have worked. Every step is now
split by where it runs, and the written key is verified by comparing sha256
digests rather than printing anything. `qrencode` is on neither, so the QR step
says so and gives the install command.

Touches clusters/** and adds a **/*.sops.yaml, so approval-policy will block
pending the operator's /approve-override. Deliberately not posted by me.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 23:55:29 -05:00
jakman85andClaude Opus 5 a209a618fd fix(pm-agent): the agent is IN the cluster — one git host, the cluster-local service name
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An in-cluster consumer reaches a service by its *.svc.cluster.local name, which is by
design a different path from how a client outside the cluster reaches the same service.
pm-worker's host allowlist accepted TWO values: the cluster-local name and the external
hostname gitea.home.keithjackson.dev. The second is removed.

It was never needed — nothing sets it — it would route in-cluster traffic out through the
Gateway and back for no reason, and as an ACCEPTED value it widened the allowlist to a
host reachable over the namespace's world:443 egress rule, which is precisely the
injection shape the allowlist exists to refuse.

probe-validation.sh now pins that: 20 refusals, including the external hostname, the
cluster-local name over https, and the cluster-local name on the wrong port.

Also corrects a remark in the handoff entry: I cited cluster-vars' GATEWAY_VIP
(192.168.1.53) as suspicious next to the nodes' 192.168.2.x. That was noise — those base
cluster-vars values are dev-era leftovers for a decommissioned cluster and say nothing
about prod. None of the measured facts depended on it.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 23:40:55 -05:00
jakman85andClaude Opus 5 6253d546f8 docs(pm-agent): the registry cannot be pulled from yet — name both prerequisites where the operator reads them
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pm-agent reconciled exactly as designed after #57: Flux applied main@sha1:95597bd to
platform-config, pm-agent and apps-wave-0 (all Ready), the ClusterPolicy
pm-agent-job-shape is live with Enforce + failurePolicy Fail and all six rules, SOPS
decryption works through the new overlay patch (checked by key names and value lengths,
never values), and pm-agent-worker really is bound to nothing.

Measuring it turned up two prerequisites for the NEXT operator step that nothing in this
repository declares, and that #57's handoff could not have known — it listed the image
pull as unverified, and that is exactly where it bit:

 - the nodes cannot verify the registry's TLS certificate (containerd: 'x509: certificate
   is not valid for any names'), while the same name serves a healthy Let's Encrypt
   wildcard from the LAN. A correct digest fails identically;
 - an unauthenticated client gets nothing from this Gitea's registry (its anonymous token
   carries no access scope) and no imagePullSecret exists anywhere in the tree.

Not specific to pm-agent: conformance-runner shares the registry path and has never been
pulled either. The dispatcher is the first workload in the cluster ever to reference it.

Documentation only — no manifest, no policy, no code. Both fixes need an operator action
and one of them is a posture decision, so the docs present both rather than pick.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 23:22:52 -05:00
jakman85 95597bd688 Merge pull request 'feat(pm-agent): an in-cluster AI Program Manager that turns Gitea issues into pull requests' (#57) from feat/pm-agent-issue-to-pr into main
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Reviewed-on: #57
Reviewed-by: Keith Jackson <[email protected]>
2026-10-06 04:12:31 +00:00
jakman85 06ca9eeb88 Merge pull request 'fix(runbooks): vpn-remote-access step 1 named a nonexistent script; step 2 cited the wrong gitignore rule' (#58) from fix/vpn-runbook-ansible-command into main
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Reviewed-on: #58
2026-10-06 04:12:27 +00:00
jakman85andClaude Opus 5 18f741d744 fix(runbooks): vpn-remote-access step 1 named a nonexistent script; step 2 cited the wrong gitignore rule
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Both reported by the operator on first use of the runbook merged in #55.

Step 1 said `cd infra/ansible && ./site.sh --tags system --limit k3s_prod`.
There is no site.sh anywhere in this repo. It was wrong four ways at once:
this repo drives Ansible with `ansible-playbook <playbook>` and never a
wrapper (playbooks/site.yml is the full bring-up chain, not this); the module
work is in playbooks/node-baseline.yml; targeting here is `-e k3s_hosts=...`,
not `--limit`; and Ansible exists only in the pinned toolbox, with ansible.cfg
read only from infra/ansible. Replaced with the real command plus why
`-e k3s_hosts=k3s_prod` matters (the default group is decommissioned dev) and
why `--tags system` must never be dropped (an untagged run also executes the
`disks` tasks, which assert on prod's deliberate placeholder devices).

Step 2 told the operator to stage the server key at /work/.cache/server.key
"inside the repo's gitignored cache". .cache/ is NOT gitignored -- the file was
ignored only incidentally by `*.key` (.gitignore:11). So the path was safe for
a reason I had not identified, and renaming it (server.pem, wg-server) would
have left a committable WireGuard private key in the checkout, which
no-plaintext-secrets does not recognise. The step now names the real rule,
marks the suffix as the load-bearing part, and gives a check-ignore
verification to run before trusting it.

Docs only -- no manifest and no behaviour change. Touches no sensitive path.
Also records the post-merge measurements for #55, whose own entry predates the
merge: Flux applied ad3f56e by the real path, all 18 Kustomizations Ready,
hostNetwork confirmed (pod IPs are the node IPs), and the designed fail-closed
state (Init:0/1 on the missing wg-server-key Secret).

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 23:08:19 -05:00
jakman85andClaude Opus 5 867a82d8ad docs(pm-agent): correct the handoff — a STALE approval still satisfies the gate
gate / gate (pull_request) Successful in 1m52s
gate / conformance (pull_request) Has been skipped
I recorded that merging main in would dismiss the operator's approval and that
approval-policy would therefore go red until they re-approved. Measured: wrong.

dismiss_stale_approvals is true, so the review did go stale — but
ci/approval-policy.sh selects on .state == "APPROVED" and a non-author login and reads
nothing about staleness, and required_approvals is 0 so Gitea never required one either.
CI run #257 on the merged head: "approved by 'jakman85' (author 'gitea-admin') —
sensitive change is human-reviewed", approval-policy pass, gitea-settings pass, required
check green, PR mergeable.

The 'push again and you must override again' rule applies to the /approve-override
directive, which IS staleness-checked against the head commit — not to a review.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 23:03:28 -05:00
jakman85andClaude Opus 5 e4a9b02b00 docs(pm-agent): CLAUDE.md §0 is already satisfied in a worker — tell it not to make a worktree
gate / gate (pull_request) Successful in 1m52s
gate / conformance (pull_request) Has been skipped
PR #56 added §0 (work in your own worktree, never the shared checkout) while this branch
was open. A worker agent reads CLAUDE.md first, and §0's instruction is to create a git
worktree outside the shared checkout — which does not exist in a worker's container. It
holds a fresh clone of its own, made for one assignment and thrown away with the pod,
which is what §0 is actually asking for.

A worker that obeyed §0 literally would 'git worktree add', edit somewhere the wrapper
that started it does not look, and have its work committed by nobody while the issue got
a 'changed nothing' report. worker-rules.md now says §0 is satisfied and not to do that.

Also records in the handoff entry: the merge and its one conflict, and that this push
dismisses the operator's approving review — measured, dismiss_stale_approvals=true — so
the approval-policy stage needs them to re-approve. That is theirs to do, not an agent's.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 23:00:50 -05:00
jakman85andClaude Opus 5 0569d47d49 Merge branch 'main' into feat/pm-agent-issue-to-pr
One conflict, in clusters/base/kustomization.yaml: PR #55 (vpn-ingress) and this branch
both appended a resource line to the same tail. Resolved by keeping BOTH, with main's
vpn-ingress first — it is a platform-config-tier leaf, while pm-agent dependsOn
apps-wave-0, which is later.

Nothing else conflicted. runbooks/kustomization.yaml auto-merged and carries both the
vpn-remote-access and pm-agent entries; the handoff entries are separate files and had
nothing to merge, which is the whole point of decisions/ being a directory.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 22:57:40 -05:00
jakman85 3ee663dbcc Merge pull request 'docs(agents): one workspace per agent run — the shared checkout is off-limits' (#56) from docs/agents-work-in-their-own-workspace into main
gate / gate (push) Successful in 1m46s
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Reviewed-on: #56
Reviewed-by: Keith Jackson <[email protected]>
2026-10-06 03:49:28 +00:00
jakman85 ad3f56eee8 Merge pull request 'feat(vpn-ingress): WireGuard remote access on udp/51820 — hostNetwork, because a pod identity would 403 every Gateway hostname' (#55) from feat/vpn-remote-access-wireguard into main
gate / gate (push) Successful in 1m47s
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Reviewed-on: #55
Reviewed-by: Keith Jackson <[email protected]>
2026-10-06 03:41:48 +00:00
jakman85andClaude Opus 5 005e80d38a docs(pm-agent): record the PR's own CI result, read from the log not the status tick
gate / gate (pull_request) Successful in 1m50s
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The PR gate ran and BLOCKED on approval-policy alone — the sensitive-path rule, with no
non-author review — while every technical stage passed, gitea-settings included (the one
stage a workstation cannot run). That is the gate working, and it is the one thing an
agent must not clear for itself.

Also recorded: the commit-status API reported 'pending — Waiting to run' for a run that
had already completed, so the log is the source of truth here. §2b again.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 22:38:55 -05:00
jakman85andClaude Opus 5 8b5e950baa test(pm-agent): a committed negative-path probe for the worker's input guards
gate / gate (pull_request) Failing after 1m52s
gate / conformance (pull_request) Has been skipped
pm-worker's command is pinned by admission with no args, so everything a caller could
influence arrives in the environment — and the guards at the top of that script are what
stand between an injected variable and a clone from the wrong host or a push to the
wrong ref. Nothing exercised them, which makes them a claim rather than a control.

probe-validation.sh asserts 17 refusals, each on BOTH a non-zero exit and the specific
message, so a guard that stopped firing cannot pass by failing somewhere else. It covers
a redirected git host, a real and reachable WRONG one (the egress policy permits tcp/443,
so that case is not hypothetical), the right host with a smuggled path, 'main' and five
other bad branch shapes, a malformed owner/repo, a bad mode, a bad issue number, and each
missing credential. build-image.sh runs it inside the built image too.

Writing it found three things:
 - the PM_BRANCH != main guard is unreachable while the pattern check above it holds, so
   the comment claiming it as the defence was wrong about which line does the work. Kept
   as an assertion independent of the regex; the comment now says so.
 - the EXIT trap ended in a failing test, which under set -e can replace the script's
   real exit code with that failure.
 - a provenance LOG LINE read a file through a redirect that set -o pipefail would have
   turned into a dead worker if the file were absent.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 22:34:46 -05:00
jakman85andClaude Opus 5 2cb891c05d docs(agents): one workspace per agent run — the shared checkout is off-limits
gate / gate (pull_request) Successful in 1m48s
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Agents have been working in the operator's checkout and clobbering each other.
Nothing in the tree told them not to: worktrees appeared in CLAUDE.md only as
§3's gate workarounds, and decisions/README.md described worktree isolation as
something agents already do rather than as a rule.

New CLAUDE.md §0 states the rule, with the commands and an explicit do-not list
for the shared checkout. Placed before §1 so every existing §-reference in the
repo keeps its meaning.

Measured in the shared checkout on 2026-10-05, each row a distinct failure mode:
107 `checkout: moving` reflog entries; sitting on feat/pm-agent-issue-to-pr, not
main; two other runs' untracked trees left in it; local main two commits behind
origin/main; 42 registered worktrees of which 31 are on already-merged branches;
9 gate scripts carrying a `.claude/` exclusion because an in-tree worktree made
find-based discovery count the same manifest up to 18 times.

Corrects a claim carried in earlier briefs: `git worktree remove` is NOT blocked
by the agent sandbox. Provoked on a throwaway worktree — rc 0.

§3 reframed as the normal path and grown from two breakages to three:
spec-immutability's skip is avoidable, not merely tolerated, with the spec repo
mounted read-only in the same ENGINE shim plus -e SPEC_REPO=/home-network-k3s.

CLAUDE.md is a sensitive path, so this PR needs a non-author review or an
administrator /approve-override posted as a PR review. Not posted by me: §1
forbids an agent clearing that on its own PR.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 22:31:40 -05:00
jakman85andClaude Opus 5 54418363aa fix(pm-agent): take the newest comment by list order, not by comparing timestamp strings
gate / gate (pull_request) Failing after 1m51s
gate / conformance (pull_request) Has been skipped
last_activity() is the whole trigger: the PM acts iff the newest thing in a thread was
not written by it. It found that newest comment by comparing Gitea's RFC 3339
created_at STRINGS, which is only correct while every offset is identical — true today,
silently wrong after a server timezone change, and the failure would be the PM answering
its own last comment forever.

The comments endpoint returns them in creation order, so the last element IS the newest.
Using that removes the dependency entirely. Found by self-review, before anything ran.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 22:30:44 -05:00
jakman85andClaude Opus 5 f92707f38c feat(vpn-ingress): WireGuard remote access on udp/51820 (hostNetwork, declarative peers)
gate / gate (pull_request) Successful in 1m47s
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Lets the operator's Android / Linux / Windows / macOS devices dial in from
anywhere and behave like LAN machines: full reach to 192.168.2.0/24 plus
internet egress out the house WAN. Opposite direction to platform/vpn-egress,
which sends pods OUT through PIA; the two share nothing but the word "VPN".

WireGuard because it is the only option with a first-party client on all four
named platforms, and because its handshake MAC is keyed with the responder's
own public key: an unauthenticated packet gets NO reply, so udp/51820 is
indistinguishable from a closed port. That, not "it is encrypted", is what
makes an unfiltered WAN port defensible, and why there is no source allowlist.

hostNetwork: true is REQUIRED, not convenient. A pod-networked server must SNAT
clients to its own pod IP, so every remote client would carry that pod's Cilium
identity -- and a pod-sourced request to the shared Gateway VIP returns 403 from
Envoy for ALL 16 hostnames (measured 2026-10-04), because Cilium's Gateway
preserves the original source identity and enforces the destination's ingress
policy. The obvious build would have shipped a healthy-looking tunnel on which
every cluster web UI was 403 and *.home.keithjackson.dev did not even resolve.
In the host netns traffic is SNATed to the node and arrives as host/remote-node,
exactly like a LAN client. It also sidesteps the unsafe ip_forward sysctl, the
L2-announcement lease lottery, and double encapsulation (hence MTU 1420).
Permitted by restrict-host-namespaces' own carve-out for platform namespaces.
The cost is stated in networkpolicy.yaml rather than papered over: no
NetworkPolicy constrains a hostNetwork pod.

A DaemonSet so the hand-made WAN forward cannot be invalidated by a reschedule;
all three nodes answer the same keys, so failover is a one-line router change.

Peer PUBLIC keys are plaintext in peers.yaml, which makes "who can get into my
house" a reviewable PR diff. The only secret -- the server's private key -- is
an out-of-band Secret: an agent must not mint a long-lived private key, and the
two halves are joined only at pod start into a tmpfs that dies with the pod.

Ships INERT-BUT-HEALTHY with zero peers. THREE off-repo manual steps remain
(kernel module, server key, WAN forward) -- runbooks/vpn-remote-access.md.

Touches clusters/** , so ci/approval-policy.sh will block pending the
operator's /approve-override. Deliberately not posted by me (CLAUDE.md §1).

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 22:29:46 -05:00
jakman85andClaude Opus 5 c5b5b8672a feat(pm-agent): an in-cluster AI Program Manager that turns Gitea issues into pull requests
gate / gate (pull_request) Failing after 1m51s
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A service that reads this repository's Gitea issues, decides what to do about each
thread as the Program Manager persona, and runs one worker agent per assignment that
authors a change, runs the merge gate and opens a pull request. It reacts to issue
creation and to comments; the assignment and all correspondence travel through the
issue thread and the PR. It authenticates with an Anthropic subscription token. It
never pushes to main and never merges.

Three choices carry the design, with alternatives recorded in docs/plans/:
 - it POLLS rather than receiving webhooks (Gitea's webhook SSRF guard, lost
   deliveries, and no inbound reach needed at all);
 - it keeps NO state: the trigger is "the newest thing in this thread was not
   written by me", so the issue thread is the state — no PVC, no backup obligation;
 - the model holds NO tools: its reply is one JSON object this code validates, so
   nothing in the path executes text.

The boundary is platform/kyverno/admission/pm-agent-job-shape.yaml (Enforce,
failurePolicy: Fail), not the RBAC: Kubernetes places no `use` check on
serviceAccountName, so "may create Jobs" is "may run arbitrary code as the
namespace's most privileged identity". Six rules admit only the committed shape, and
the worker identity is bound to nothing with no token mounted, so there is nothing to
escalate to. 28/28 offline Kyverno assertions.

Nothing has run: the image has never been built or pushed, and both the image digest
and the two credentials are deliberate placeholders. See the handoff entry's
"What I did NOT verify".

Refs CLAUDE.md §1/§3/§6, R-SEC-02, R-GITOPS-02.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 22:28:10 -05:00
jakman85 22c94effff Merge pull request 'feat(cilium): roll the agents when cilium-config changes (merged config was silently inert)' (#53) from feat/cilium-roll-out-on-config-change into main
gate / gate (push) Failing after 1m45s
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Reviewed-on: #53
2026-10-06 02:30:31 +00:00
jakman85andClaude Opus 5 d0db63911a feat(cilium): roll the agents when cilium-config changes (merged config was silently inert)
gate / gate (pull_request) Successful in 1m46s
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A merged Cilium config change did nothing, and everything reported success.
The Hubble flow exporter (#50, merged 2026-10-04) never took effect:

  HelmRelease cilium   Ready=True, "Helm upgrade succeeded ... cilium.v6"
  cilium-config        hubble-export-file-path: stdout  + the allowlist, PRESENT
  cilium agent pods    all three still PRE-MERGE, startTime 2026-10-04T07:11Z
  exported flow lines  0, 0, 0
  Flux                 every Kustomization Ready=True

Cause: the chart's rollOutCiliumPods defaults to false, so Helm rewrites the
ConfigMap and leaves the DaemonSet's pod template untouched -- and cilium-agent
reads that ConfigMap only at STARTUP. Merged, believed delivered, green
everywhere, doing nothing. The same class of failure this repo already guards
against elsewhere: a green signal over something that never ran.

Confirmed by contrast rather than reasoned: the cgroup fix (#42) DID apply --
both the DaemonSet and the running pod mount /sys/fs/cgroup -- because it changed
the POD TEMPLATE, which rolls the DaemonSet on its own. That also explains why
the agents are dated 2026-10-04T07:11Z: that was #42's rollout, and nothing has
rolled them since. The inertness is specific to ConfigMap-only changes.

Set in all three value files to hold the [parity] contract.

Cost, and it is the point: every future Cilium config change now rolls the
agents instead of waiting for a manual restart. Strictly more honest -- it
applies when merged or fails visibly -- but config edits become disruptive by
default. maxUnavailable: 1 bounds it to one node at a time. The lease-holding
node briefly loses the Gateway, PiHole-DNS and Plex VIPs as it cycles, so merge
at a quiet moment.

Merging this IS one rollout (the ConfigMap checksum annotation changes the pod
template) -- which is what finally activates the Hubble exporter.

UNVERIFIED: unreconciled; `filePath: stdout` still unproven and only answerable
after the agents restart (check for flow lines immediately); and the rollout's
actual impact on LAN DNS is unmeasured.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 21:19:13 -05:00
jakman85andClaude Opus 5 81f627167d docs(obs): record that the gate-sidecar scrape works — four places still said it did not
gate / gate (pull_request) Successful in 1m48s
gate / conformance (pull_request) Has been skipped
PR #49 (merged 21c88b0) fixed the blocked scrape and it is verified working on prod
2026-10-05: all 6 targets up == 1, health=up, lastError='', lastScrapeDuration 0.001-0.006s
against 10.0s and "context deadline exceeded" before. oauth2_proxy_* is in the TSDB for
these namespaces for the first time (5 metric names, 148 series).

Four places in the tree still asserted the pre-fix state as current, in the present tense,
in the files a reader consults first:

  platform/oauth2-proxy/podmonitor.yaml  "READ THIS BEFORE BELIEVING THE TARGETS ARE UP:
    THE SCRAPE IS CURRENTLY DENIED BY NETWORKPOLICY" and "SO THE TARGETS BELOW WILL READ
    up == 0 UNTIL AN INGRESS ALLOWANCE LANDS". The first actively instructs the reader to
    disbelieve a correct up == 1. Now a STATUS block with the post-fix numbers, with the
    diagnosis kept below it under an explicit HISTORY heading because it is why the fix is
    shaped the way it is.
  catalog/render.py:159  "THIS IS THE PREREQUISITE ONLY, AND IT IS NOT YET SCRAPED".
  catalog/render.py:1365  the same claim on the sidecar arg.
  platform/oauth2-proxy/README.md  its subsections are dated and so are honest records, but
    a reader hits the stale body long before any correction. A SUPERSEDED pointer now sits
    under the heading and an Update 2026-10-05 section carries the before/after.

The "not scraped" claims are corrected; the "a flag alone is not enough" warning is KEPT
deliberately, because that part is still true and "flag without ingress allowance" is
exactly what caused the 63.7h outage.

Two substantive errors fixed while there, not just tense. The README's "three things are
needed" listed a Service port and a ServiceMonitor — wrong, a PodMonitor targets pod ports
directly, which is why no Service exposes 44180 and the renderer needed no Service change;
following it would have sent someone to edit Service rendering for nothing. And
podmonitor.yaml deferred the fix to "the catalog/renderer, in flight on another branch" —
no such branch existed; it now names r_monitoring_ingress_policy, with a new CRAFTY section
explaining the one namespace this file cannot help.

Comments only in render.py, so the rendered output is byte-identical: no apps/ file and no
golden changes, and therefore no sensitive path and no human approval needed — the opposite
of the PR this documents.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 21:18:33 -05:00
jakman85 4386d1453b Merge pull request 'fix(plex): advertise a resolver-independent plex.direct name again (LAN-wide outage)' (#52) from fix/plex-resolver-independent-advertise into main
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Reviewed-on: #52
2026-10-06 02:06:00 +00:00
jakman85andClaude Opus 5 874c6703f0 fix(plex): advertise a resolver-independent plex.direct name again (LAN-wide outage)
gate / gate (pull_request) Successful in 1m50s
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I took Plex down for the whole LAN. ADVERTISE_IP was
http://plex-vip.${BASE_DOMAIN}:32400 -- a name that exists ONLY in PiHole's
split-horizon answers and in no public zone.

A Plex client resolves the advertised host ITSELF, with whatever resolver it
uses, and on a real LAN that is frequently not PiHole: browsers ship DoH on by
default, phones have "private DNS", guest/IoT devices take the router's DNS.
Those clients could not resolve the name, the router answered the failed lookup
with ITSELF, and they all landed on its web UI -- hence the %D certificate.

Measured 2026-10-05:
  192.168.2.1:443      -> C=ZZ, O=%D342e7e6b, CN=%D   (router, LAN side)
  136.51.115.252:443   -> the same %D cert            (router, WAN side)
  pihole-0 AND pihole-1 -> plex -> .20, plex-vip -> .24   (both CORRECT)
  gateway .20:443      -> CN=*.home.keithjackson.dev, valid
  http://192.168.2.24:32400/identity -> 200
  Plex's published connections: all port 32400, nothing on 443

The DNS was right; the DEPENDENCY on it was the bug. And since nothing Plex
advertises listens on 443, the clients had left the Plex path entirely.

Fix: <dashed-ip>.<serverhash>.plex.direct, which is RESOLVER-INDEPENDENT -- a
public zone returning the private address embedded in the label, so every
resolver (PiHole, the router, 1.1.1.1, a DoH browser) answers it with
192.168.2.24. No split-horizon entry, no Cloudflare record and no certificate
work needed: the wildcard cert Plex already serves on 32400 covers that name.
Re-verified today with full validation (no curl -k): 200, TLS verified.

The nicer hostname cannot be made correct for clients that bypass PiHole -- a
public record resolves to the WAN address and there is no NAT hairpin, so it is
right only for PiHole users and wrong for the rest. There is no configuration of
it that is right for both. PiHole's plex-vip answer is KEPT; it is just not what
Plex advertises.

Cost restated, not buried: the value embeds the VIP and the cert hash as a
literal and nothing checks they still agree. Accepted because an unresolvable
name is a worse failure -- silent, LAN-wide, and it points users at the router.

UNVERIFIED: unreconciled, and the client-side resolver path is INFERRED -- my
public-resolver probe was broken (NXDOMAIN even for a name that resolves) so I
discarded it. The chain is the only explanation consistent with the
measurements, but the NXDOMAIN-hijack step was not observed directly.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 20:58:55 -05:00
jakman85 bc7095677b Merge pull request 'fix(plex): unblock the app tier — drop the Certificate that stalled apps-wave-0, advertise http' (#51) from fix/plex-unblock-app-tier into main
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Reviewed-on: #51
2026-10-05 13:53:21 +00:00
jakman85andClaude Opus 5 a0e6ef145f fix(plex): unblock the app tier — drop the Certificate that stalled apps-wave-0, advertise http
gate / gate (pull_request) Successful in 1m50s
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I broke the app tier with #48. Two faults, both mine, both measured after merge:

1. KYVERNO BLOCKS cert-manager IN APP NAMESPACES. The temporary private-key
   Secrets (plex-vip-<random>) were denied by
   secret-provenance/secrets-must-be-flux-managed, which matches every Secret in
   a namespace labelled homelab.keithjackson.dev/app-namespace=true and excludes
   only those labelled secret-managed-by=controller or carrying a Flux label.
   `plex` HAS that label; `gateway` -- where the working wildcard cert lives --
   does NOT. That asymmetry is why the existing Certificate was never affected
   and mine was, and I did not check it. secretTemplate cannot fix it: those
   Secrets come from the keymanager controller, not the Certificate template. So
   no CertificateRequest, Order or Challenge was ever created.

2. FLUX HEALTH-CHECKS THE CERTIFICATE. `optional: true` did its job -- the pod
   rolled and ran fine without the Secret -- but apps-wave-0 is wait:true, so
   Flux waits on the Certificate OBJECT:
     timeout waiting for: [Certificate/plex/plex-vip status: 'InProgress']
   apps-wave-0 never went Ready; wave-1/-2 and everything downstream of
   platform-config sat in DependencyNotReady behind it. I guarded the pod and
   missed the object. That distinction is the whole bug.

Third, independent: the advertised URL was https with no servable certificate --
Plex answers 32400 with its *.plex.direct cert, which cannot cover plex-vip --
the exact failure mode of the outage earlier the same day.

So: delete the Certificate (pruning it clears the health gate) and advertise
http://plex-vip:32400, which is MEASURED to work today -- PiHole answers the
name with the Plex VIP (verified against pihole-0) and Plex serves 32400 there.
http is explicitly temporary and only tolerable because remote access does not
work yet; the restore condition is written at the call site.

DELETED, not merely unregistered: my first attempt kept the file as "tracked but
not onboarded" and the gate rejected it -- tls-lifecycle-automated (R-TLS-02)
fails any Certificate no Flux path reconciles. Legal for a Deployment, not for a
TLS object. The re-enable recipe (Kyverno exemption + a wait:false Kustomization
+ the https flip, as ONE change) is recorded in catalog/plex.yaml.

Kept and verified working from #48: the hostname design, PiHole's split-horizon
answer, and the postStart hook -- LanNetworksBandwidth is now set live.

Gate: rc 3, all substantive stages pass (first attempt was rc 1 BLOCKED).

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 17:10:25 -05:00
jakman85 c163deaef9 Merge pull request 'feat(plex): one advertised hostname for local+remote, its own LE cert, and a LAN definition so LAN clients stop reading as remote' (#48) from feat/plex-vip-hostname-and-lan-networks into main
gate / gate (push) Successful in 1m48s
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Reviewed-on: #48
Reviewed-by: Keith Jackson <[email protected]>
2026-10-04 21:47:32 +00:00
jakman85 642a7752d8 Merge pull request 'feat(cilium): export Plex's pre-SNAT client address via Hubble, scoped to tcp/32400' (#50) from feat/hubble-flow-export-plex into main
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Reviewed-on: #50
2026-10-04 21:47:20 +00:00
jakman85andClaude Opus 5 989649e64a feat(cilium): export Plex's pre-SNAT client address via Hubble, scoped to tcp/32400
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The requirement is log visibility only -- which address connected to Plex.

Plex's own log cannot show it. Every LoadBalancer Service here is
externalTrafficPolicy: Cluster, so the node holding the VIP's L2 lease SNATs
the client before forwarding to the backend pod. Measured: Plex had logged
3,214 requests from 10.0.1.x (lease holder k3s-prod-3's own address, Cilium
identity 1 = reserved:host) and ZERO from any 192.168.x address, ever. No
X-Forwarded-For either -- it serves raw tcp/32400, not HTTP via the Gateway.
Nothing on the router does this; there is no hairpin NAT. It is Cilium.

The address is not lost, only unrecorded. Cilium observes the flow at ingress,
BEFORE its own translation, so Hubble already has it:

  192.168.2.133 -> 10.0.0.135   real LAN client -> the Plex pod
  10.0.1.78     -> 10.0.0.135   same traffic post-SNAT, what Plex sees

What was missing is RETENTION: 4095/4095 flows at ~303/s is about thirteen
seconds of history, metrics disabled, no exporter configured.

So enable the static exporter, port-scoped, to the agent's stdout -- Alloy
already tails every pod into Loki, so this needs no new mount, no rotation
handling and no Alloy change.

  {namespace="kube-system", app="cilium"} |= "32400"

Scoped BY PORT, not namespace, on evidence: --to-namespace plex returned only
the post-SNAT flows; the record carrying the real client address did not match
it. A namespace filter would drop exactly what this exists to capture.

Rejected, with reasons: eTP:Local is incompatible with cilium 1.20's L2
announcer per upstream docs for this version ("may cause service IPs to be
announced on nodes without pods causing traffic drops") -- and the VIP is on
prod-3 while the pod is on prod-1, so it would black-hole 32400 immediately;
making it safe costs Plex its ability to reschedule. DSR: routing-mode is
vxlan, not native/geneve, and DSR returns bypass the ingress node, breaking
the router's stateful NAT on the remote path.

Also corrects the repo's own record: 2026-10-03 says the SNAT lands in
192.168.0.0/16 (the node's LAN address). It is 10.0.1.x, the cilium_host
inside the pod CIDR -- which is why LanNetworksBandwidth can never separate
local from remote while eTP is Cluster.

UNVERIFIED and stated in the handoff: nothing is reconciled; `filePath: stdout`
is taken from a verbatim upstream sentence but not confirmed against 1.20.1
source (a wrong notation is a silent no-op, with the file+Alloy fallback
documented); the port FlowFilter has no upstream example; and this change
ROLLS CILIUM -- prod-3 announces the Gateway, PiHole DNS and Plex VIPs, so a
lease move during the rollout could briefly interrupt LAN DNS.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 16:36:12 -05:00
jakman85 21c88b0dc7 Merge pull request 'fix(obs): open 44180 to ns monitoring so the forward-auth gate sidecars are actually scrapable' (#49) from fix/oauth2-sidecar-metrics-scrape-netpol into main
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Reviewed-on: #49
2026-10-04 21:33:28 +00:00
jakman85andClaude Opus 5 b156ee6cfa fix(obs): open 44180 to ns monitoring so the forward-auth gate sidecars are actually scrapable
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platform/oauth2-proxy/podmonitor.yaml landed 2026-10-02 and discovered six targets that
have never once scraped. Measured on prod 2026-10-04: all six read health=down with
lastError "context deadline exceeded" and lastScrapeDuration exactly 10.0s — the
configured scrapeTimeout, i.e. packets DROPPED rather than refused.

Cause: every app namespace ships a default-deny NetworkPolicy with
policyTypes: [Ingress, Egress] and NO ingress key at all (deny-all-ingress), and the only
ingress allowance is <app>-allow-gateway-ingress: fromEntities: [ingress] -> 4180.
Prometheus matched no clause. Verified identical in all six of jackett, radarr, sonarr,
qbittorrent, pihole, crafty; zero namespaces had any -allow-monitoring-scrape object.

render.py already had the right idiom — r_monitoring_ingress_policy — but it returned None
unless the service declared observability.metricsEndpoint, and NO ServiceDefinition in this
catalog declares one. It was wired in at the call site and had never emitted a single
object on any branch: correct, and entirely latent.

It now also fires for the forward-auth gate sidecar's own metrics port, keyed on
_needs_oauth2_sidecar — deliberately the same condition the scrape keys on, since
podmonitor.yaml selects pods purely by the auth-mode label, so a target exists iff the
sidecar exists. Keying on observability.metrics instead would let metrics: false produce a
discovered-but-blocked target: the same "two halves authored apart" failure this function
exists to prevent.

Rendered here rather than in platform/oauth2-proxy because that tier would have to name app
namespaces created by the sibling apps-wave-0/1 tiers — it would apply on a running cluster
and fail on a cold bootstrap. podmonitor.yaml's header records that objection; rendering
per-app dissolves it.

Five CNPs result, one per forward-auth app, each opening only 44180 to only ns monitoring.
apps/ re-rendered with the invocation it was generated by (--no-image-automation, verified
byte-identical beforehand); --emit-waves deliberately not run, so no wave kustomization moved.

Three L1 goldens are regenerated with it (+63 lines, -0): a renderer change that adds an
object necessarily drifts the goldens that pin the renderer's output. The first gate run
caught container-workload-render and egress-class-render as FAIL with exactly this CNP as
the drift. default-deny-baseline-render's golden regenerated byte-identical, which is the
evidence that the regen is faithful and not a rubber stamp.

That puts conformance/** in the diff, which is a sensitive path: this PR needs a non-author
approving review. The local gate cannot see that — offline it reports approval-policy green
(N/A).

Local toolbox gate: rc 3 UNDETERMINED, not 0. Every stage that ran is green and l1 went
FAIL -> pass with the goldens; the only not-run stage is gitea-settings (no
GITEA_SETTINGS_TOKEN). L2/L3 conformance is UNVERIFIED for all 8 touched requirements.

Not verified: that the scrape now succeeds. Nothing is applied until Flux reconciles main.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 16:05:44 -05:00
jakman85andClaude Opus 5 0aa1a0a78a feat(plex): one advertised hostname for local+remote, its own LE cert, and a LAN definition
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Two symptoms after the publishing fix landed:

1. LAN clients were reported as Remote. Measured root cause:
   LanNetworksBandwidth was ABSENT, so Plex had no notion of a local
   network and classified everything WAN -- 468 requests logged
   "Allowed Network (WAN)", ZERO "(LAN)", including Seerr from inside the
   cluster. allowedNetworks only waives AUTH; it does not make a client
   local. Two settings, and only one has an env hook.
2. The advertised URL hard-coded both the VIP and the server's cert hash
   into a cluster-var -- two values nothing kept in sync.

Operator design: ONE hostname, plex-vip.${BASE_DOMAIN}, split-horizon --
PiHole answers it with ${PLEX_L4_VIP} on the LAN, Cloudflare answers it
publicly with the WAN address NATed to the same VIP.

- catalog/plex.yaml: ADVERTISE_IP -> https://plex-vip.${BASE_DOMAIN}:32400,
  plus a level-triggered postStart hook (pihole/qbittorrent idiom) that
  re-asserts LanNetworksBandwidth and the three customCertificate* prefs
  every start, converting PEM -> PKCS#12 so cert renewals need no extra part.
- apps/wave-0/plex-cert.yaml: cert-manager Certificate for exactly that
  name from letsencrypt-prod, so the advertised https URL is servable.
- schema 1.11.0: `optional` on secretKeyRef/configMapKeyRef. Load-bearing --
  the cert is issued INTO the plex namespace, which the rendered plex.yaml
  itself creates, so it lands in the same reconcile; hard refs would have
  held Plex in CreateContainerConfigError and, since apps-wave-0 is
  wait:true, stalled the whole app tier on a slow DNS01 challenge.
- catalog/pihole.yaml: the plex-vip split-horizon answer. Required --
  measured, the name resolved to the Gateway VIP where nothing listens
  on 32400 (http=000).
- PLEX_ADVERTISE_URL deleted; the hostname removes the cert-hash fragility.

Corrects my own earlier claim that a SAN match is REQUIRED: it is not
(httpsRequired=0, secureConnections defaults to Preferred, so clients can
fall back to cleartext). A matching cert keeps the remote leg ENCRYPTED.
Hence: obtain a real cert for the advertised name rather than pick the name
to suit Plex's built-in one.

UNVERIFIED, and stated plainly in the handoff: nothing here has run. Cert
issuance for this name is inferred from the wildcard's success, and whether
Plex accepts an OpenSSL-3 PKCS#12 bundle is untested -- the largest risk.

Touches clusters/** -> sensitive paths -> needs a non-author approval or the
operator's /approve-override; deliberately not self-posted (CLAUDE.md 1).

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 03:37:57 -05:00
jakman85 422834d4e2 Merge pull request 'fix(plex): advertise the plex.direct name, not the bare VIP (server vanished from the plex.tv account)' (#47) from fix/plex-advertise-plexdirect into main
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Reviewed-on: #47
Reviewed-by: Keith Jackson <[email protected]>
2026-10-04 07:59:14 +00:00
jakman85andClaude Opus 5 1f4552d409 fix(plex): advertise the plex.direct name, not the bare VIP (server vanished from the plex.tv account)
gate / gate (pull_request) Successful in 1m48s
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customConnections held two hand-typed URLs and neither could ever complete, so
Plex had nothing publishable and the server disappeared from the account:

  - https://192.168.2.24:32400 -- the server's cert is
    *.130072f20c334d6c8f63d0dfef87309b.plex.direct with NO IP SAN, so bare-IP
    https fails TLS for every client. Measured: a continuous storm of
    "CERT: incomplete TLS handshake ... certificate unknown" from real LAN
    clients arriving through the plex-l4-tcp VIP.
  - https://plex.home.keithjackson.dev:32400 -- nothing listens; the Gateway
    serves that host on 443 (measured http=000 against 192.168.2.20:32400).

With no completable connection plex.tv published nothing ("Mapped - Not
Published"), Plex fell back to Relay, and clients reported "not authorized".

Fix: advertise <dashed-ip>.<serverhash>.plex.direct -- public DNS that resolves
to the embedded address, so it points at the LAN VIP and matches the wildcard
cert. Verified with full TLS validation (no curl -k): 200 + verify OK, where
the bare-IP form fails to connect.

Declared as ADVERTISE_IP so git owns the value instead of a web form: the
image's 40-plex-first-run writes it into customConnections on every pod start,
outside the claim guard.

Does NOT fix off-LAN access -- the advertised address is RFC1918 and the WAN
tcp/32400 forward remains unverified. ManualPortMappingMode=1 with an absent
port is left as-is (no GitOps path exists for it).

Touches clusters/** -> sensitive paths -> needs the operator's
/approve-override, deliberately not self-posted (CLAUDE.md 1).

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 02:53:01 -05:00
jakman85 c95b1c7121 Merge pull request 'fix(cilium): point cgroup.hostRoot at the host cgroup2 root (socket-LB never covered host processes)' (#42) from fix/cilium-cgroup-hostroot into main
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Reviewed-on: #42
2026-10-04 07:10:31 +00:00
jakman85 ed6afc3d3f Merge pull request 'docs(decisions): record that PiHole HA is verified live, failover drill included' (#46) from docs/pihole-ha-verified into main
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Reviewed-on: #46
2026-10-04 07:08:19 +00:00
jakman85andClaude Opus 5 254985baa6 docs(decisions): record that PiHole HA is verified live, failover drill included
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No manifests change. The three entries merged earlier today each say, correctly
at the time, that nothing had been reconciled -- which is now stale in exactly
the way CLAUDE.md section 2b warns about: a reader would conclude the work is
unproven. This entry is the current state and does not edit the earlier files.

Measured on live prod after dce20b7: apps-wave-0 reconciled in ~90s (inside the
5m timeout the multi-replica entry flagged as a risk); pihole-0 on k3s-prod-3
and pihole-1 on k3s-prod-2, so the required anti-affinity was satisfied; both
per-replica claims Bound; the old Deployment and the old unused PVC both pruned;
PDB healthy with one disruption allowed.

The mountPath fix is confirmed: /etc/pihole is now on /dev/longhorn with 6.9M
used on both pods, where it was previously on the overlay.

Phase 1's declarations reproduce onto a FRESH volume, which was the whole reason
for sequencing it first: 72,234 gravity domains rebuilt on each replica from the
declared adlist, and the declared SOPS secret authenticates on BOTH pods
("valid":true via each container's own env, value never printed).

FAILOVER DRILL, observed by the operator: a replica was deleted, recreated in
~30 seconds, and DNS never dropped a request. First direct evidence the replica
count delivers what it was added for.

Re-deriving the SLI from the rendered workload kind mattered concretely: the
StatefulSet series returns 2 while the old Deployment series now returns ZERO
series, so a stale Deployment-shaped rule would have matched its own absent()
branch and fired permanently -- a standing false page.

Still unverified and stated as such: node failure (the drill deleted a pod, so
the 300s toleration path is untouched), DNS during the cutover itself, two-node
loss, and the cluster-wide dependency that replicas cannot address.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 02:03:42 -05:00
jakman85 dce20b7be6 Merge pull request 'feat(pihole): two replicas on different nodes, and fix a PVC mounted where pihole never writes' (#45) from feat/pihole-multi-replica into main
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Reviewed-on: #45
2026-10-04 06:50:56 +00:00
jakman85andClaude Opus 5 028853c87c feat(pihole): two replicas on different nodes, and fix a PVC mounted where pihole never writes
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Phase 2 of making LAN DNS survive a node failure. Pihole was one pod on one
node; measured 2026-10-04, losing that node meant roughly 6-10 minutes with no
LAN resolution (tolerationSeconds 300 + NotReady detection + a Longhorn RWO
force-detach), while losing the node holding the pihole-dns L2 lease -- a
DIFFERENT node -- meant tens of seconds. Two of three nodes were single points
of failure with wildly different blast radii.

Adds `availability.replicas` to the ServiceDefinition schema (1.10.0). Intent
only; the mechanism is render.py's, documented in the renderer contract. 1 or
absent renders a Deployment exactly as before -- verified byte-identical across
the whole apps/ tree. >1 renders a StatefulSet (a longhorn PVC is RWO, so a
multi-replica Deployment never schedules the second pod), per-replica
volumeClaimTemplates, REQUIRED hostname anti-affinity, podManagementPolicy
Parallel, a minAvailable:1 PodDisruptionBudget, and an SLI that follows the
rendered kind (a Deployment-shaped rule against a StatefulSet absent()s forever).

Pinned by ~20 new --selftest assertions rather than a conformance change.

ALSO FIXES A LIVE BUG. Pihole's config PVC was mounted at the renderer default
/data/config, but pihole writes to /etc/pihole. Measured: /etc/pihole (7.1M --
gravity.db, pihole.toml, query DB) was on the OVERLAY, while the 2Gi Longhorn
volume held lost+found and 24K of nothing. So every restart discarded all state
and re-downloaded 72k gravity domains, and backup.policy has been backing up an
empty volume while reporting success. Fixed here because otherwise the new
per-replica volumes would hold nothing while state stayed ephemeral -- and
because persisting gravity.db is what makes a restart cheap.

The /etc/pihole mount is safe on the image's own evidence: start.sh is PID 1 as
uid 0 and chowns the directory recursively (no fsGroup needed), and it calls
migrate_gravity which creates the database when absent.

The gate caught a real regression on the first run: the wave-0 alert unit test
fed pihole a Deployment-shaped series. Updated; promtool SUCCESS.

Touches no sensitive paths, so this one needs no override.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 01:34:52 -05:00
jakman85 17f0c11403 Merge pull request 'feat(pihole): declare the admin password and adlists in git' (#44) from feat/pihole-declare-state into main
gate / gate (push) Successful in 1m45s
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Reviewed-on: #44
Reviewed-by: Keith Jackson <[email protected]>
2026-10-04 06:14:47 +00:00
jakman85andClaude Opus 5 3b1d6ae115 feat(pihole): declare the admin password and adlists in git
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Prerequisite for running more than one PiHole replica. A second replica with a
fresh PVC would have come up serving DNS and blocking nothing, with a different
admin password -- answers varying by which pod replied.

pihole.toml's own ### CHANGED markers gave the exact inventory: four settings
already came from env (declared), one came from the image, and exactly ONE
operator-set value lived only on the PVC -- webserver.api.pwhash, a one-way hash
nobody could recover. Separately the adlists were undeclared: one list and 72,234
gravity domains that nothing in this repo named.

Declares both:
- A SOPS secret feeding FTLCONF_webserver_api_password. webserver.api.password
  takes cleartext and FTL hashes it itself (verified: pihole setpassword IS
  setFTLConfigValue on that key), so the PVC's pwhash becomes derived state.
- A level-triggered postStart hook that reconciles the declared adlist set into
  gravity.db -- adds, re-enables, and disables (never deletes) undeclared lists,
  running pihole -g only when something moved. A file would not work: v6's
  adlists.list import is migration-only, guarded on the DB not existing.

The rendered hook was run in the live pod against throwaway copies of gravity.db,
exercising all four paths. A fresh DB built from the image's own schema template
has ZERO adlists, confirming this is load-bearing rather than cosmetic.

Password kept rather than set empty: the pihole Service still publishes port 80
past the oauth2-proxy, closed only by policy, and default-deny has drifted here
before.

Multi-replica is phase 2 and deliberately not in this branch -- it needs a schema
field, a StatefulSet (the config PVC is RWO), anti-affinity and a PDB.

Adds a *.sops.yaml -- a sensitive path -- so approval-policy will block pending
an operator /approve-override.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-04 01:07:30 -05:00
jakman85 939461120a Merge pull request 'feat(plex): expose tcp/32400 for remote access via a pinned LoadBalancer VIP' (#43) from feat/plex-remote-access-l4 into main
gate / gate (push) Failing after 1m56s
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Reviewed-on: #43
Reviewed-by: Keith Jackson <[email protected]>
2026-10-04 04:46:34 +00:00
jakman85andClaude Opus 5 fbaeb3e038 feat(plex): expose tcp/32400 for remote access via a pinned LoadBalancer VIP
gate / gate (pull_request) Successful in 1m49s
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Remote Plex clients had no path in, for two measured reasons: Plex advertised
no remote connection at all (customConnections and ManualPortMappingMode both
ABSENT while PublishServerOnPlexOnlineKey=1), and its Service was ClusterIP, so
32400 had no off-cluster path. The L7 Gateway was NOT the problem -- it serves
Plex correctly (200, claimed=1, 401 on protected endpoints) -- but Plex clients
discover servers through plex.tv, not DNS, so an HTTPRoute cannot put this
server on a client's connection list.

Operator chose the native path over ADVERTISE_IP: Plex terminates its own TLS
with *.plex.direct and streams bypass the Envoy L7 hop.

Adds a hand-written non-catalog unit (the SD schema cannot express a
LoadBalancer Service or a pinned lbipam VIP), registered in render.py's
EXTRA_UNITS so --emit-waves places it in plex's own wave.

externalTrafficPolicy: Cluster, inheriting crafty's 8-day-outage lesson rather
than re-deriving it. Known consequence, documented: SNAT puts remote clients
inside ALLOWED_NETWORKS, so Plex meters them as LAN. Not an auth change.

Remote access does NOT work until the operator does two manual steps that
cannot live in this repo -- the WAN tcp/32400 forward and Plex's "manually
specify public port" toggle (no env var exists for it; verified NONE in the
image's init surface). runbooks/plex-remote-access.md is the procedure.

Touches clusters/** -- a sensitive path -- so the approval-policy stage will
block pending an operator /approve-override.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-03 23:30:46 -05:00
jakman85andClaude Opus 5.5 9a69f6906a fix(cilium): point cgroup.hostRoot at the host's real cgroup2 root
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hostRoot was /run/cilium/cgroupv2 with autoMount disabled, but nothing
mounts cgroup2 there. The agent mounted one from inside its own private
cgroup namespace, so socket-LB attached to the agent's own cgroup and
host processes got no Service/LB translation. k3s-prod-1 (Gateway L2
lease holder + kube-vip VIP) therefore could not reach the Gateway VIP,
and its apiserver's OIDC authenticator has failed since 2026-09-12.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-03 18:07:18 -05:00
jakman85 7ef2af205d Merge pull request 'fix(node-baseline): pin the OIDC issuer to the Gateway VIP on prod nodes' (#41) from fix/node-keycloak-hosts-pin into main
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Reviewed-on: #41
2026-10-03 22:46:38 +00:00
jakman85andClaude Opus 5.5 788eaeae62 fix(node-baseline): pin the OIDC issuer to the Gateway VIP on prod nodes
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After public DNS moved to the WAN IP (#40), prod nodes resolve
keycloak.home.keithjackson.dev to a WAN address the router does not
hairpin, so the apiserver could not reach its OIDC issuer. Adds an opt-in
node_baseline_hosts_pins /etc/hosts block; prod pins keycloak to
GATEWAY_VIP.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-03 17:39:37 -05:00
jakman85 576e1abb19 Merge pull request 'feat(dns): publish Gateway names to the WAN via in-cluster DDNS' (#40) from feat/public-dns-wan-target into main
gate / gate (push) Successful in 1m45s
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Reviewed-on: #40
2026-10-03 22:25:13 +00:00
jakman85andClaude Opus 5.5 a1e808e697 feat(dns): publish Gateway names to the WAN via in-cluster DDNS
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Gateway-published records now CNAME to wan.${BASE_DOMAIN}, which a
favonia/cloudflare-ddns Deployment keeps at the home WAN's current public
IP. Operator decision: every Gateway-published name goes public; internal
services (controller: none) remain unpublished.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-03 16:59:53 -05:00
jakman85 bcb8931b4f Merge pull request 'fix(runbooks): Plex hw transcoding WORKS — the dashboard was never the proof' (#39) from fix/plex-quicksync-verification into main
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Reviewed-on: #39
Reviewed-by: Keith Jackson <[email protected]>
2026-10-02 06:43:04 +00:00
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@@ -115,14 +115,59 @@ CI. That is a real coverage gap, not a phase.
| variable | `REQUIRE_CLUSTER_TESTS` | `'true'` (Phase 1+) makes unverified cluster-needing touched reqs a hard block |
| secret | `CONFORMANCE_TRIGGER_KUBECONFIG` | narrow creds to create/await the in-cluster Chainsaw Job (not cluster-admin) |
## How images are built
This repo's three images — `toolbox` (`infra/devcontainer/`), `agent-runner` (`infra/agent/`,
built `FROM` the toolbox) and `conformance-runner` (`conformance/incluster/`) — are built,
verified and published by [`images.yaml`](images.yaml), never from a workstation
(operator rule, 2026-10-29). The logic is in [`scripts/images.sh`](scripts/images.sh).
**The builder is rootless BuildKit** ([`platform/buildkit/`](../../platform/buildkit/README.md)),
reached over mTLS with a pinned `buildx` — no job here touches a Docker daemon, privileged or
otherwise (operator decision on PR #81). The client certificate reaches jobs as the Actions
secrets `BUILDKIT_CA`, `BUILDKIT_CLIENT_CERT`, `BUILDKIT_CLIENT_KEY`.
**Verification is a build target.** Each Containerfile ends in a `verify` stage that runs every
in-image assertion at build time as the non-root uid with `RUN --network=none` (tool presence and
pinned versions, `PM_SELFTEST=1 pm-dispatch`, the pm-worker probe, the `conformance-clone`
refusals, no writable path outside the workspace). The pipeline builds `<image>-verify` before it
builds, let alone pushes, the image. Build args come from each image's own
`build-image.sh --print-build-args`, which is also the local podman path — so the recipe and the
proof exist once.
| Trigger | What happens |
|---|---|
| pull request touching an image's inputs | build + verify only. Nothing is pushed and **no registry credential is referenced** |
| push to `main` touching an image's inputs | build + verify + publish to `gitea.home.keithjackson.dev/home-network/<image>` as `sha-<commit>` (immutable) and `main` (moving); the **registry-returned** digest is in the job summary |
| `workflow_dispatch` | the same as a push when run on `main` (all images by default); verify-only elsewhere |
Only images whose inputs changed are built. The publish job **never writes to git**: Renovate
follows each image's `main` tag through a `# renovate-digest:` marker next to every digest
reference (`platform/pm-agent/`, `infra/agent/versions.env`, `conformance/versions.env`) and
opens the bump PR, which goes through the gate like anything else. A PR opened with the Actions
token would not trigger the required gate, which is why it is Renovate's job and not this one's.
Credential: the repository secret **`REGISTRY_PUSH_TOKEN`** (scope `write:package`, owned by an
account with package write on the org). The automatic Actions token cannot push in Gitea 1.24.3
— the reasoning, with source citations, is in the header of `images.yaml`. Retention:
[`infra/gitea/registry-retention.sh`](../../infra/gitea/registry-retention.sh), an operator
action, keeps every digest git pins plus the newest tags.
Cost: the job shares the single act_runner slot with the gate, but the build itself runs in the
`buildkitd` pod, not in DinD, so the runner's disk and memory are untouched. Until
`platform/buildkit` is deployed and its client certificate copied
(`infra/gitea/buildkit-client-secret.sh`), the job fails loudly at its builder preflight.
## Files
```
.gitea/workflows/
merge-gate.yaml the pipeline (lint → l0 → l1 → conformance → decision)
images.yaml build/verify/publish this repo's container images (see above)
scripts/
install-tools.sh installs the pinned tools per stage (from ci/versions.env)
decide.sh the R-TEST-03 merge decision over job results
images.sh the image pipeline's driver (what to build, base, push, digest)
README.md this file
```
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# Container images — built, verified and published by CI, never from a workstation.
#
# ═══════════════════════════════════════════════════════════════════════════════════════════════
# WHY THIS FILE EXISTS (operator rule, 2026-10-29)
# ═══════════════════════════════════════════════════════════════════════════════════════════════
# "Container image creation, hosting and lifecycle must be part of CI/CD and the codebase, never a
# one-off build/push from a workstation." Before this workflow, three images existed only as
# workstation builds and NOTHING had ever been pushed to the Gitea registry: the Home-Network org's
# package list was empty, platform/pm-agent/ pinned an all-zero digest and sat in ImagePullBackOff,
# and conformance/versions.env carried an empty digest. Both build scripts said "publishing is an
# operator action" — a step with no log, no recorded inputs and no verification anyone could read.
#
# WHAT IT DOES — the logic is in scripts/images.sh; this file only wires triggers and secrets.
# pull_request -> build + VERIFY only. No push, and no registry credential is referenced.
# push to main -> build + verify + PUBLISH to gitea.home.keithjackson.dev/home-network/<image>
# dispatch -> same as a push when run on main; verify-only on any other ref.
# Images: toolbox (infra/devcontainer), agent-runner (infra/agent, FROM toolbox) and
# conformance-runner (conformance/incluster). Only images whose inputs changed are built.
#
# THE DIGEST LIFECYCLE — this workflow NEVER writes to git.
# 1. publish pushes `sha-<commit>` (immutable) and `main` (moving), and prints the digest the
# REGISTRY returns in the job summary.
# 2. Renovate (renovate.yaml) follows the `main` tag of each image through the
# `# renovate-digest:` markers next to every digest reference, and opens the bump PR.
# 3. That PR goes through the gate like any other change, and Flux deploys it.
# The bump PR is Renovate's and not this job's because a PR opened with the Actions token does not
# trigger workflows, so it could never pass the REQUIRED gate check; Renovate's token is a real
# user's.
#
# THE PUSH CREDENTIAL — `REGISTRY_PUSH_TOKEN`, a repository Actions secret, referenced BY NAME.
# The automatic Actions token CANNOT be used. Gitea 1.24.3 source, verified:
# * services/auth/basic.go (Basic.Verify) turns a task token into the pseudo-user
# `gitea-actions` (ActionsUserID -2) and sets NO token scope;
# * routers/api/packages/container/container.go (Authenticate, the /v2/token exchange every
# docker client uses) then requires read:package / write:package / all scope and answers 401;
# * services/context/package.go (determineAccessMode) has `// TODO: ActionUser permission check`
# and no branch for that user, so even past login it would get at most READ on a public org.
# So: a personal access token with scope `write:package`, minted by an account that has package
# WRITE on the Home-Network org (org owner, or a team with the Packages unit at write). A dedicated
# bot account in a packages-only team is the least-privilege choice. The username sent with it is
# not checked by Gitea (basic.go resolves the owner from the token), so `vars.REGISTRY_PUSH_USER`
# is optional and only labels the login.
#
# THE BUILDER — rootless BuildKit (operator decision on PR #81, 2026-10-29).
# The act runner's job containers get NO Docker daemon (act_runner 0.2.11 forces docker_host "-"
# for a tcp:// DinD, and gitea/act strips every bind when valid_volumes is empty — measured on
# this PR's first run), and handing them the privileged DinD daemon would be root on the node for
# anyone who can push a branch. So images are built by platform/buildkit/: a ROOTLESS buildkitd
# (not privileged; uid 1000 in a user namespace), reached over mTLS at
# buildkitd.buildkit.svc.cluster.local:1234 with a pinned `buildx` (remote driver). Its client
# certificate reaches jobs as three Actions secrets — BUILDKIT_CA, BUILDKIT_CLIENT_CERT,
# BUILDKIT_CLIENT_KEY — copied from cert-manager by infra/gitea/buildkit-client-secret.sh.
# Pull requests get the client certificate (they must build) but never a registry credential.
#
# UNTIL platform/buildkit IS DEPLOYED (Flux applies it only after merge) THIS JOB FAILS, LOUDLY,
# at its builder preflight. A skipped Gitea job reports `success`, so it is red on purpose.
#
# VERIFICATION is each Containerfile's `verify` stage, built before anything is pushed.
#
name: images
on:
pull_request:
branches: [main]
paths:
- infra/devcontainer/Containerfile
- infra/devcontainer/versions.env
- infra/devcontainer/build-image.sh
- infra/agent/**
- conformance/incluster/Containerfile
- conformance/incluster/conformance-clone
- conformance/incluster/build-image.sh
- .gitea/workflows/images.yaml
- .gitea/workflows/scripts/images.sh
- platform/buildkit/versions.env
push:
branches: [main]
paths:
- infra/devcontainer/Containerfile
- infra/devcontainer/versions.env
- infra/devcontainer/build-image.sh
- infra/agent/**
- conformance/incluster/Containerfile
- conformance/incluster/conformance-clone
- conformance/incluster/build-image.sh
- .gitea/workflows/images.yaml
- .gitea/workflows/scripts/images.sh
- platform/buildkit/versions.env
workflow_dispatch:
inputs:
images:
description: "Which images: 'all', or a space-separated subset of: toolbox agent-runner conformance-runner"
required: false
default: "all"
concurrency:
# Never cancel a publish half-way: a pushed `sha-` tag with no matching `main` move is
# recoverable (a rerun skips what is already published) but pointless to provoke.
group: images-${{ github.ref }}
cancel-in-progress: false
jobs:
images:
runs-on: ubuntu-latest
# Measured on the PR that introduced this file — see its decisions entry. Generous because a
# cold DinD store downloads the Fedora base and every pinned tool on each run.
timeout-minutes: 75
steps:
- name: Checkout
uses: actions/checkout@v4
with:
fetch-depth: 0 # the per-image change detection diffs against the base commit
# ── pull requests: build + verify, NO credential ───────────────────────────────────────
- name: Build and verify (pull request — nothing is pushed)
if: github.event_name == 'pull_request'
env:
MODE: verify
IMAGES: auto
PR_BASE_REF: ${{ github.base_ref }}
# The BUILDER's client certificate (platform/buildkit). Not a registry credential:
# a pull request can build, never push.
BUILDKIT_CA: ${{ secrets.BUILDKIT_CA }}
BUILDKIT_CLIENT_CERT: ${{ secrets.BUILDKIT_CLIENT_CERT }}
BUILDKIT_CLIENT_KEY: ${{ secrets.BUILDKIT_CLIENT_KEY }}
run: |
set -euo pipefail
BASE_SHA="$(git merge-base "origin/${PR_BASE_REF}" HEAD)"
export BASE_SHA
./.gitea/workflows/scripts/images.sh
# ── non-main dispatch: verify only ──────────────────────────────────────────────────────
- name: Build and verify (dispatch off main — nothing is pushed)
if: github.event_name == 'workflow_dispatch' && github.ref != 'refs/heads/main'
env:
MODE: verify
IMAGES: ${{ inputs.images == 'all' && 'toolbox agent-runner conformance-runner' || inputs.images }}
BUILDKIT_CA: ${{ secrets.BUILDKIT_CA }}
BUILDKIT_CLIENT_CERT: ${{ secrets.BUILDKIT_CLIENT_CERT }}
BUILDKIT_CLIENT_KEY: ${{ secrets.BUILDKIT_CLIENT_KEY }}
run: ./.gitea/workflows/scripts/images.sh
# ── main: publish ───────────────────────────────────────────────────────────────────────
- name: Preflight - the push token must exist, and its absence must be LOUD
if: github.event_name != 'pull_request' && github.ref == 'refs/heads/main'
env:
REGISTRY_PUSH_TOKEN: ${{ secrets.REGISTRY_PUSH_TOKEN }}
run: |
set -euo pipefail
if [ -z "${REGISTRY_PUSH_TOKEN:-}" ]; then
echo "::error::REGISTRY_PUSH_TOKEN is not set on this repository." >&2
cat >&2 <<'MSG'
Images cannot be published without a registry credential, and this step fails rather
than skipping ON PURPOSE: a skipped Gitea job reports `success`, so skipping here would
make "nothing was published" look exactly like "published". That is how this repo went
a month with images that existed only on one workstation.
WHY NOT THE BUILT-IN ACTIONS TOKEN: Gitea 1.24.3 gives it no package scope at the
registry's /v2/token exchange (routers/api/packages/container/container.go,
Authenticate) — see the header of .gitea/workflows/images.yaml.
TO FIX: as an account with package WRITE on the Home-Network org (ideally a dedicated
bot in a packages-only team), create an access token with scope `write:package` and
nothing else, then add it to this repository as the Actions secret
REGISTRY_PUSH_TOKEN. Optionally set the Actions variable REGISTRY_PUSH_USER to that
account's name. Do not commit the token anywhere. Then re-run this workflow
(workflow_dispatch on main, images: all).
MSG
exit 1
fi
echo "REGISTRY_PUSH_TOKEN is present (value not printed)."
- name: Build, verify and publish (main)
if: github.event_name != 'pull_request' && github.ref == 'refs/heads/main'
env:
MODE: publish
IMAGES: ${{ github.event_name == 'workflow_dispatch' && (inputs.images == 'all' && 'toolbox agent-runner conformance-runner' || inputs.images) || 'auto' }}
BASE_SHA: ${{ github.event.before }}
REGISTRY_TOKEN: ${{ secrets.REGISTRY_PUSH_TOKEN }}
REGISTRY_USER: ${{ vars.REGISTRY_PUSH_USER }}
BUILDKIT_CA: ${{ secrets.BUILDKIT_CA }}
BUILDKIT_CLIENT_CERT: ${{ secrets.BUILDKIT_CLIENT_CERT }}
BUILDKIT_CLIENT_KEY: ${{ secrets.BUILDKIT_CLIENT_KEY }}
run: ./.gitea/workflows/scripts/images.sh
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# Renovate — the dependency/image update automation. SCHEDULED, self-hosted against this Gitea.
#
# ═══════════════════════════════════════════════════════════════════════════════════════════════
# WHY THIS FILE EXISTS: renovate.json HAS BEEN IN THIS REPO AND HAS NEVER ONCE RUN.
# ═══════════════════════════════════════════════════════════════════════════════════════════════
# Measured 2026-10-17: `renovate.json` is present, complete and thoughtfully written — it declares
# managers, schedules, automerge classes and grouping. Nothing executes it. There is no Renovate
# workflow (this is the first), no Renovate CronJob or Deployment in the cluster
# (`kubectl get cronjob,deploy,job -A | grep -i renovate` -> nothing), and no bot account doing it
# from outside. Meanwhile SEVEN files carry comments asserting "Renovate maintains this pin"
# (platform/homepage/deployment.yaml:40, runbooks/serving/deployment.yaml:87,
# platform/crafty/deployment.yaml:63, platform/vpn-ingress/daemonset.yaml:259,
# platform/keycloak/postgres-cluster.yaml:75, apps/wave-0/nextcloud-db.yaml:302, and
# platform/headlamp/helmrepository.yaml:2). Those comments have been false for the life of the file.
#
# The cost is measurable. With nothing bumping anything: the six per-app oauth2-proxy auth sidecars
# sit on v7.8.1 while the platform oauth2-proxy in the SAME cluster runs v7.15.5; Keycloak (the IdP)
# runs 26.0.6, a November-2024 release, 8 minors behind; Velero runs a RELEASE CANDIDATE
# (velero-plugin-for-aws v1.14.3-rc.2) with a stable available; the CNPG Postgres image is 16.4,
# missing every 16.5+ security release. A pin nothing maintains is not a pin, it is a fossil.
#
# ═══════════════════════════════════════════════════════════════════════════════════════════════
# WHY RENOVATE AND NOT FLUX IMAGE-AUTOMATION (the decision, and it reverses ADR-0009's split)
# ═══════════════════════════════════════════════════════════════════════════════════════════════
# ADR-0009 divided the work: Renovate owns Helm chart/dependency bumps, Flux image-automation owns
# per-service container image TAGS, deliberately non-overlapping. The second half of that split
# cannot be delivered on this repo's terms, for three measured reasons:
#
# 1. IT WOULD BYPASS THE MERGE GATE, WHICH CLAUDE.md §1 FORBIDS. ImageUpdateAutomation does not
# open pull requests; it COMMITS AND PUSHES. Its default target is the source's own branch —
# `main` — so it would write straight past the PR flow. It can be pointed at a side branch
# instead, but then nothing opens the PR and bumps silently accumulate on a branch nobody
# merges. Either way a human or a second bot has to close the loop.
# 2. ON THIS CLUSTER IT CANNOT EVEN DO THAT. Measured 2026-10-17: `main` is protected with
# `user_can_push: false`, and the `flux-system` GitRepository has NO `spec.secretRef` at all —
# the source is anonymous and read-only. Enabling write-back means minting an in-cluster git
# WRITE credential for the repository that defines the cluster, which is a materially larger
# blast radius than a CI-scoped token.
# 3. RENOVATE ALREADY OPENS PRs NATIVELY, so every change it proposes goes through the gate with
# no extra machinery.
#
# So: Renovate owns BOTH halves, and Flux image-automation stays disabled. Note this is a change of
# plan, not a change of state — image-automation has been commented out at
# platform/kustomization.yaml:52 since it was authored, and the cluster has ZERO
# ImageRepository/ImagePolicy/ImageUpdateAutomation objects (measured). Its two controllers ARE
# installed and have idled for 43 days. Nothing is being torn down here; a path that was never
# taken is being formally closed, and renovate.json's `docker`/`kubernetes` managers — disabled
# purely to avoid fighting a controller that never ran — are switched on to fill the gap.
#
# ═══════════════════════════════════════════════════════════════════════════════════════════════
# THIS WORKFLOW MUST NOT BE ABLE TO SUCCEED SILENTLY
# ═══════════════════════════════════════════════════════════════════════════════════════════════
# A SKIPPED Gitea job reports `success` (CLAUDE.md §2), so "green" is not evidence this ran. Two
# guards:
# * The preflight step FAILS HARD (exit 1) if RENOVATE_TOKEN is absent, rather than skipping.
# A missing credential on a dependency bot is indistinguishable from "nothing to update", and
# that is precisely how renovate.json stayed inert for months.
# * The summary step records what ran into the job summary unconditionally.
# What this still does NOT give you is an alert when the SCHEDULE stops firing. See the handoff
# entry's "What I did NOT verify" — that gap is stated, not papered over.
#
# OPERATOR PREREQUISITE — ONE SECRET, NOT COMMITTED HERE:
# `RENOVATE_TOKEN` — a Gitea access token for the bot account (`renovate-bot`) with FIVE scopes.
# Each is required by a call Renovate 44.x makes against Gitea 1.24.3, and Gitea refuses a
# token missing one with `403 token does not have at least one of required scope(s)`:
# read:user GET /user (platform init: initPlatform)
# read:organization GET /orgs/{owner}, /orgs/{o}/labels (initRepo -> isOrg, then org labels)
# write:repository clone/push branches, /pulls, /statuses
# write:issue /issues, /labels, /issues/{n}/labels (dependency dashboard, PR labels;
# Gitea files all of these under the ISSUE scope, not repository)
# read:package the Gitea container registry (RENOVATE_HOST_RULES below)
# CORRECTED 2026-10-30. This list used to name only write:repository + read:user (+ read:package),
# and the operator minted exactly that. Run 350 then failed at
# `GET /api/v1/orgs/Home-Network 403 ... required=[read:organization], token scope=read:package,
# write:repository,read:user`; write:issue would have been the next wall. The preflight below now
# PROBES these scopes, so a short token fails in seconds with the missing scope named.
# Set it as an Actions secret on this repository. Nothing in this repo mints,
# stores or references its value; it is consumed by name only.
# Until it exists, this workflow FAILS LOUDLY on every scheduled run. That is intended: a
# visible red is the correct state for "automation configured but not credentialed".
#
# THE FIRST RUN WILL WANT TO OPEN A LOT OF PRs. ~30 dependencies are behind. renovate.json caps the
# blast radius (`prConcurrentLimit: 5`, `prHourlyLimit: 2`), but run it manually with
# `dry_run: true` FIRST and read the log before letting the schedule loose. That is what
# workflow_dispatch's default is for.
name: renovate
on:
schedule:
# 08:15 UTC daily. renovate.json ALSO carries `"schedule": ["after 3am and before 6am"]` with
# `"timezone": "America/New_York"`, and THAT inner schedule is authoritative — Renovate re-checks
# it and DECLINES TO OPEN PRs outside it. So this cron must fire INSIDE the local window, not
# merely near it.
#
# WAS `15 3 * * *`, WHICH NEVER WOULD HAVE WORKED (fixed 2026-10-18, before the first scheduled
# run). Gitea Actions cron is UTC, so 03:15 UTC is 23:15 the PREVIOUS EVENING in New York --
# 3h45m BEFORE the window opens, not "slightly ahead" of it as the original comment claimed.
# Every nightly run would have started, logged "not within schedule", opened zero PRs and
# exited SUCCESSFULLY. A green tick forever, and no updates ever: the exact "failure mode is a
# green tick" shape this repo keeps getting burned by, and indistinguishable from "nothing
# needed updating".
#
# THE WINDOW IN UTC MOVES WITH US DST, and a cron cannot follow it:
# EDT (UTC-4, Mar-Nov): local 03:00-06:00 == 07:00-10:00 UTC
# EST (UTC-5, Nov-Mar): local 03:00-06:00 == 08:00-11:00 UTC
# 08:15 UTC is the only quarter-hour comfortably inside BOTH (04:15 EDT / 03:15 EST), so the
# schedule keeps working across both switchovers without an edit. Do not "tidy" this back to an
# early-morning-UTC value without redoing this arithmetic.
- cron: "15 8 * * *"
workflow_dispatch:
inputs:
dry_run:
description: "Dry run (no PRs, no branches). Leave true for the first run."
required: false
default: "true"
log_level:
description: "Renovate LOG_LEVEL (info | debug)"
required: false
default: "info"
concurrency:
# Never two Renovate runs at once: concurrent runs race on the same branches and can open
# duplicate PRs. Not cancel-in-progress — a half-finished Renovate run can leave a branch pushed
# with no PR, so let the first one finish.
group: renovate
cancel-in-progress: false
jobs:
renovate:
runs-on: ubuntu-latest
# RENOVATE RUNS AS THE JOB CONTAINER, NOT THROUGH renovatebot/github-action. FIXED 2026-10-30.
# That action does exactly one thing: `docker run ghcr.io/renovatebot/renovate:<version>`. On
# this runner a job has NO Docker daemon, by decision (decisions/2026-10-29-image-pipeline.md:
# act_runner sets container.docker_host to `-` when DOCKER_HOST is tcp://, and the DinD daemon
# is privileged, so a job that could reach it would be root on the node). So every run of the
# action died before Renovate started. Dispatch run 343 (2026-10-30), verbatim:
# [command]/usr/bin/docker run --env LOG_LEVEL ... --env RENOVATE_TOKEN=*** ...
# failed to connect to the docker API at unix:///var/run/docker.sock; ... no such file or directory
# ::error::Error: The process '/usr/bin/docker' failed with exit code 1
# No auth, scope, config or network question was ever reached. Making the Renovate image the
# job container needs no daemon: act starts it through the runner's own DinD exactly as it
# starts the default ubuntu image, then `exec`s each step inside it.
#
# PINNED here (was the action's `renovate-version: 44.167.0`). renovate.json5 is validated
# against this exact tag — keep them in step. Renovate's github-actions manager reads
# `.gitea/workflows` and extracts `container.image`, so this pin is still self-maintained.
#
# The image runs as uid 12021 (`ubuntu`), and that is fine under act: the step command files
# ($GITHUB_STEP_SUMMARY etc.) are created mode 0666 (gitea/act v0.261.2 pkg/runner/step.go),
# HOME comes from the image env, and no step writes the workspace. There is deliberately NO
# actions/checkout: Renovate clones the repo itself from RENOVATE_ENDPOINT, and as uid 12021
# checkout could not `git init` the root-owned workspace volume anyway.
container:
image: ghcr.io/renovatebot/renovate:44.167.0
# Renovate scans every manager across the whole repo; 40m is generous for this repo's size and
# well under a runner's patience. Without a timeout a wedged run holds the `renovate`
# concurrency group and silently blocks every subsequent scheduled run.
timeout-minutes: 40
steps:
- name: Preflight - the token must exist, and its absence must be LOUD
shell: bash
env:
RENOVATE_TOKEN: ${{ secrets.RENOVATE_TOKEN }}
run: |
set -euo pipefail
if [ -z "${RENOVATE_TOKEN:-}" ]; then
echo "::error::RENOVATE_TOKEN is not set on this repository." >&2
cat >&2 <<'MSG'
Renovate cannot run without a Gitea access token, and this step fails rather than
skipping ON PURPOSE: a skipped Gitea job reports `success`, so skipping here would make
"dependency automation is not running" look exactly like "everything is up to date".
That is the failure mode that let renovate.json sit inert in this repo for months while
seven files claimed "Renovate maintains this pin".
TO FIX: create a Gitea access token for the bot account (renovate-bot) with scopes
read:user, read:organization, write:repository, write:issue and read:package (the
header of .gitea/workflows/renovate.yaml says which call needs which), then add it to
this repository as the Actions secret RENOVATE_TOKEN. Do not commit it anywhere.
MSG
exit 1
fi
echo "RENOVATE_TOKEN is present (value not printed)."
# Proves the step is running INSIDE the pinned Renovate image, not the default job image.
echo "renovate $(renovate --version)"
- name: Preflight - the token has every scope Renovate needs
shell: bash
env:
RENOVATE_TOKEN: ${{ secrets.RENOVATE_TOKEN }}
# ADDED 2026-10-30. Renovate reports EVERY platform-init failure as the bare
# "Authentication failure" (lib/modules/platform/gitea/index.ts initPlatform swallows the
# HTTP error), and a later scope gap surfaces as "Repository has unknown error". Two
# dispatches were spent learning one missing scope at a time. These probes are GETs only,
# and they name the missing scope. The token never reaches argv: curl reads it from stdin
# (`--config -`), so it is not in `ps` output or in the log.
run: |
set -uo pipefail
GITEA=https://gitea.home.keithjackson.dev
REPO=Home-Network/home-network-k3s-impl
fail=0
body=$(mktemp)
probe() { # <scope it proves> <path> <auth: bearer|basic>
local code
if [ "$3" = basic ]; then
code=$(printf 'user = "renovate:%s"\n' "$RENOVATE_TOKEN" \
| curl -sS --config - -o "$body" -w '%{http_code}' "$GITEA$2") || code=000
else
code=$(printf 'header = "Authorization: Bearer %s"\n' "$RENOVATE_TOKEN" \
| curl -sS --config - -o "$body" -w '%{http_code}' "$GITEA$2") || code=000
fi
if [ "$code" = 200 ]; then
echo "ok $1 (GET ${2%%\?*} -> 200)"
return
fi
fail=1
echo "::error::scope $1: GET ${2%%\?*} -> $code"
case "$code" in
401) echo " 401 = Gitea rejected the token VALUE (wrong, expired or revoked)." ;;
403) if grep -q 'Access denied' "$body"; then
echo " 403 'Access denied' = a Cilium/Envoy policy denial, not Gitea."
else
echo " Gitea: $(jq -r '.message // empty' "$body" 2>/dev/null | head -c 300)"
fi ;;
*) echo " body: $(head -c 200 "$body")" ;;
esac
}
probe read:user "/api/v1/user" bearer
probe read:organization "/api/v1/orgs/${REPO%%/*}" bearer
probe read:repository "/api/v1/repos/$REPO" bearer
probe read:issue "/api/v1/repos/$REPO/labels?limit=1" bearer
probe read:package "/v2/token?service=container_registry&scope=repository:home-network/toolbox:pull" basic
# WRITE scopes cannot be proven by a GET. Gitea's scope-refusal message, however, lists
# the token's scopes (names only, never the value): ask for an admin route this bot
# cannot have, and read `token scope=` from the 403. Advisory if the format changes.
printf 'header = "Authorization: Bearer %s"\n' "$RENOVATE_TOKEN" \
| curl -sS --config - -o "$body" "$GITEA/api/v1/admin/orgs?limit=1" || true
scopes=$(jq -r '.message // empty' "$body" 2>/dev/null | sed -n 's/.*token scope=//p')
if [ -n "$scopes" ]; then
echo "token scopes (from Gitea): $scopes"
for want in write:repository write:issue; do
case ",$scopes," in
*",$want,"*|*",all,"*) echo "ok $want" ;;
*) echo "::error::scope $want is missing (token scope=$scopes)"; fail=1 ;;
esac
done
else
echo "::warning::could not read the token's scope list; write:repository and write:issue are UNVERIFIED"
fi
rm -f "$body"
if [ "$fail" -ne 0 ]; then
echo "::error::RENOVATE_TOKEN failed the checks above (a 401 is the value, a 403 is a scope). Re-mint it for renovate-bot with read:user, read:organization, write:repository, write:issue, read:package and overwrite the secret."
exit 1
fi
- name: Run Renovate
shell: bash
# The repo config is discovered by Renovate from the cloned repo (renovate.json5,
# RENOVATE_REQUIRE_CONFIG=required). The action used to ALSO load it as the global config
# via RENOVATE_CONFIG_FILE; that double-loading is gone. ci/lint.sh's `configurationFile:`
# check therefore has nothing to resolve in this file, and passes.
env:
RENOVATE_TOKEN: ${{ secrets.RENOVATE_TOKEN }}
# Self-hosted Gitea. `platform` + `endpoint` were the two values renovate.json's own
# header said were "set at runtime by the operator's renovate runner" — this is that
# runner, so they are set here rather than in the repo config, which keeps renovate.json
# portable and free of this instance's URL.
RENOVATE_PLATFORM: gitea
RENOVATE_ENDPOINT: https://gitea.home.keithjackson.dev/api/v1
RENOVATE_REPOSITORIES: Home-Network/home-network-k3s-impl
# Renovate must never push to a protected branch; it works on its own branches and opens
# PRs against this base. Stated explicitly rather than inherited, because this is the
# property that keeps the whole mechanism inside CLAUDE.md §1's branch -> PR -> gate path.
RENOVATE_BASE_BRANCHES: main
RENOVATE_ONBOARDING: "false"
RENOVATE_REQUIRE_CONFIG: "required"
RENOVATE_DRY_RUN: ${{ github.event_name == 'workflow_dispatch' && inputs.dry_run == 'true' && 'full' || '' }}
LOG_LEVEL: ${{ github.event_name == 'workflow_dispatch' && inputs.log_level || 'info' }}
# ADDED 2026-10-29: registry read access for this repo's OWN images (toolbox,
# agent-runner, conformance-runner — published by .gitea/workflows/images.yaml and
# followed through `# renovate-digest:` markers). The Gitea registry answers 401 to
# anonymous reads, and Renovate scopes the platform token to hostType `gitea`, which a
# docker lookup never matches — so without this rule every digest lookup fails. Same
# token; it therefore needs scope `read:package` in addition to the ones listed in the
# preflight above. Gitea ignores the username for token auth (services/auth/basic.go).
RENOVATE_HOST_RULES: '[{"hostType":"docker","matchHost":"gitea.home.keithjackson.dev","username":"renovate","password":"${{ secrets.RENOVATE_TOKEN }}"}]'
# OPTIONAL, ADDED 2026-10-30. A github.com token (a fine-grained PAT with NO permissions,
# public-repo read only) for lookups of GitHub-hosted dependencies. Without it Renovate
# SKIPS them with `github-token-required` — measured in a local dry run: 17 deps, i.e.
# every `uses: actions/*` here plus kubevirt/kubevirt, kubevirt/containerized-data-importer
# and intel/intel-device-plugins-for-kubernetes. Unset is safe: the step below drops the
# empty variable, and those deps simply stay unmaintained, with a WARN in the log.
GITHUB_COM_TOKEN: ${{ secrets.RENOVATE_GITHUB_COM_TOKEN }}
run: |
set -euo pipefail
# An expression that evaluates to '' still EXPORTS the variable, as an empty string.
# Drop those so an unset value means "Renovate's default", never "set to empty".
for v in RENOVATE_DRY_RUN GITHUB_COM_TOKEN; do
[ -n "${!v:-}" ] || unset "$v"
done
# Through the image's entrypoint, as `docker run` would have gone: it sources the
# containerbase env and initialises the bundled tools before exec'ing Renovate.
exec renovate-entrypoint.sh renovate
- name: Summary
if: always()
run: |
{
echo "## Renovate"
echo
echo "- trigger: \`${{ github.event_name }}\`"
echo "- dry run: \`${{ github.event_name == 'workflow_dispatch' && inputs.dry_run || 'false' }}\`"
echo "- outcome: \`${{ job.status }}\`"
echo
echo "Renovate owns BOTH Helm chart bumps and container image tags here; Flux"
echo "image-automation is deliberately disabled (platform/kustomization.yaml)."
echo "Every change it proposes arrives as a pull request and must pass the merge gate."
} >> "$GITHUB_STEP_SUMMARY"
+373
View File
@@ -0,0 +1,373 @@
#!/usr/bin/env bash
###############################################################################
# .gitea/workflows/scripts/images.sh — the image pipeline's driver (images.yaml calls this).
#
# Builds, verifies and (on main) PUBLISHES the three images this repo ships:
#
# toolbox infra/devcontainer/ the pinned dev/gate toolchain
# agent-runner infra/agent/ FROM toolbox; the PM dispatcher + worker
# conformance-runner conformance/incluster/ the in-cluster L2/L3 Chainsaw runner
#
# THE BUILDER (operator decision on PR #81): a ROOTLESS BuildKit daemon, platform/buildkit/,
# reached over mTLS. No CI job may reach a privileged daemon, so there is no `docker build` and no
# `docker run` here: this script drives buildkitd with a pinned `buildx` (remote driver) and
# nothing else. The client certificate arrives as Actions secrets (BUILDKIT_CA,
# BUILDKIT_CLIENT_CERT, BUILDKIT_CLIENT_KEY; infra/gitea/buildkit-client-secret.sh puts them
# there). If the daemon is unreachable this FAILS LOUDLY — it never skips.
#
# VERIFICATION IS A BUILD TARGET. Each Containerfile ends in a `verify` stage that runs every
# in-image assertion at build time (as the non-root uid, with RUN --network=none); this script
# builds `<image>-verify` and only then the image. Build args come from each image's own
# `build-image.sh --print-build-args`, the same list the local podman path uses.
#
# MODES (env MODE):
# verify build the verify targets, never push, hold no registry credential. Pull requests.
# publish verify, then build + push to ${REGISTRY}/${NAMESPACE}/<image> with tags
# `sha-<12 hex>` (immutable: never re-pushed) and `main` (moving; Renovate follows
# it). The digest recorded is the one the REGISTRY returns, read back after the push.
#
# WHAT GETS BUILT (env IMAGES): `auto` (default) diffs BASE_SHA..HEAD_SHA against each image's
# inputs; otherwise a space-separated list. A change to the pipeline itself (images.yaml, this
# file, platform/buildkit/versions.env) builds everything in verify mode, and nothing extra in
# publish mode: re-publishing unchanged inputs would only mint new digests and churn Renovate PRs.
#
# THE agent-runner BASE:
# * verify mode -> FROM the toolbox built in this run, linked with a bake `target:` context —
# a pull request holds no registry credential and that toolbox exists in no registry. If the
# toolbox's inputs did not change it is built anyway, as the base.
# * publish mode, toolbox published in this run -> FROM the digest the registry just returned.
# * publish mode otherwise -> AGENT_BASE_IMAGE from infra/agent/versions.env (the published
# toolbox digest Renovate keeps current). If that is still the all-zero placeholder the
# toolbox has never been published, so it is built and published first (the bootstrap).
#
# LOOP-FREEDOM. Renovate turns each publish into a digest-bump PR. Those bumps land in
# platform/pm-agent/ (no image input), conformance/versions.env (no image input) and
# infra/agent/versions.env (agent-runner input -> ONE more agent-runner build, whose own bump
# lands in platform/pm-agent/ and stops). The worker Job template is deliberately NOT tracked:
# it is baked INTO agent-runner, so bumping it would rebuild agent-runner, mint a new digest,
# bump it again, forever. pm-dispatch overwrites that field at runtime anyway.
###############################################################################
set -euo pipefail
REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../../.." && pwd)"
cd "${REPO_ROOT}"
# shellcheck disable=SC1091
BK_HOST_OVERRIDE="${BUILDKIT_HOST:-}"; BK_NAME_OVERRIDE="${BUILDKIT_SERVERNAME:-}"
. ./platform/buildkit/versions.env
BUILDKIT_HOST="${BK_HOST_OVERRIDE:-${BUILDKIT_HOST}}"
BUILDKIT_SERVERNAME="${BK_NAME_OVERRIDE:-${BUILDKIT_SERVERNAME}}"
MODE="${MODE:-verify}"
IMAGES="${IMAGES:-auto}"
REGISTRY="${REGISTRY:-gitea.home.keithjackson.dev}"
NAMESPACE="${NAMESPACE:-home-network}"
HEAD_SHA="${HEAD_SHA:-$(git rev-parse HEAD)}"
BASE_SHA="${BASE_SHA:-}"
SUMMARY="${GITHUB_STEP_SUMMARY:-/dev/null}"
ZERO_DIGEST="sha256:0000000000000000000000000000000000000000000000000000000000000000"
ALL_IMAGES=(toolbox agent-runner conformance-runner)
SHA_TAG="sha-${HEAD_SHA:0:12}"
MOVING_TAG="main"
log() { printf '\n\033[1m==> %s\033[0m\n' "$*"; }
info() { printf ' %s\n' "$*"; }
die() { printf '\033[31mERROR: %s\033[0m\n' "$*" >&2; printf -- '- **ERROR**: %s\n' "$*" >>"${SUMMARY}"; exit 1; }
yn() { if [ -n "$1" ]; then echo "$2"; else echo "$3"; fi; }
case "${MODE}" in verify|publish) ;; *) die "MODE must be verify or publish, got '${MODE}'" ;; esac
for t in git jq curl sha256sum; do command -v "$t" >/dev/null || die "the job image lacks '$t'"; done
# --- per-image facts ------------------------------------------------------------------------
# Inputs: a change under any of these rebuilds that image. conformance-runner takes its pins from
# infra/devcontainer/versions.env. conformance/versions.env is NOT an input (it only RECORDS the
# published digest), and must not become one: Renovate writes it after every publish -> a loop.
inputs() {
case "$1" in
toolbox) echo "infra/devcontainer/Containerfile infra/devcontainer/versions.env infra/devcontainer/build-image.sh" ;;
agent-runner) echo "infra/agent/" ;;
conformance-runner) echo "conformance/incluster/Containerfile conformance/incluster/conformance-clone conformance/incluster/build-image.sh infra/devcontainer/versions.env" ;;
esac
}
context_of() { case "$1" in toolbox) echo infra/devcontainer ;; agent-runner) echo infra/agent ;; conformance-runner) echo conformance/incluster ;; esac; }
PIPELINE_FILES=".gitea/workflows/images.yaml .gitea/workflows/scripts/images.sh platform/buildkit/versions.env"
declare -A WANT=() BUILT=() DIGEST=() SECS=() NOTE=()
changed_any() { # <paths...> -> 0 if BASE_SHA..HEAD_SHA touches any
[ -n "$(git diff --name-only "${BASE_SHA}" "${HEAD_SHA}" -- "$@")" ]
}
select_images() {
local i
if [ "${IMAGES}" != "auto" ]; then
for i in ${IMAGES}; do
case " ${ALL_IMAGES[*]} " in *" ${i} "*) WANT[$i]=1; NOTE[$i]="requested" ;; *) die "unknown image '${i}'" ;; esac
done
return
fi
if [ -z "${BASE_SHA}" ] || [[ "${BASE_SHA}" =~ ^0+$ ]] || ! git cat-file -e "${BASE_SHA}^{commit}" 2>/dev/null; then
info "no usable diff base ('${BASE_SHA}'): building everything"
for i in "${ALL_IMAGES[@]}"; do WANT[$i]=1; NOTE[$i]="no diff base"; done
return
fi
info "diff base ${BASE_SHA} .. ${HEAD_SHA}"
for i in "${ALL_IMAGES[@]}"; do
# shellcheck disable=SC2046
if changed_any $(inputs "$i"); then WANT[$i]=1; NOTE[$i]="inputs changed"; fi
done
# shellcheck disable=SC2086
if [ "${MODE}" = verify ] && changed_any ${PIPELINE_FILES}; then
for i in "${ALL_IMAGES[@]}"; do [ -n "${WANT[$i]:-}" ] || { WANT[$i]=1; NOTE[$i]="pipeline changed"; }; done
fi
}
# --- the builder: pinned buildx + mTLS to rootless buildkitd ---------------------------------
WORK="$(mktemp -d)"
trap 'rm -rf "${WORK}"' EXIT # client key + registry auth live only here, only this long
export BUILDX_CONFIG="${WORK}/buildx" DOCKER_CONFIG="${WORK}/docker"
# Single-manifest images: the admission policies, Renovate and registry-retention.sh all reason
# about one manifest per tag. (Provenance attestations would turn every push into an index.)
export BUILDX_NO_DEFAULT_ATTESTATIONS=1
mkdir -p "${BUILDX_CONFIG}" "${DOCKER_CONFIG}" "${WORK}/certs"
echo '{}' > "${DOCKER_CONFIG}/config.json"
setup_builder() {
log "Builder: rootless buildkitd at ${BUILDKIT_HOST} (mTLS)"
BUILDX="${BUILDX_BIN:-}"
if [ -z "${BUILDX}" ]; then
BUILDX="${WORK}/buildx-bin"
curl -fsSL --retry 3 -o "${BUILDX}" \
"https://github.com/docker/buildx/releases/download/v${BUILDX_VERSION}/buildx-v${BUILDX_VERSION}.linux-amd64" \
|| die "could not download buildx v${BUILDX_VERSION}"
echo "${BUILDX_SHA256} ${BUILDX}" | sha256sum -c --quiet - \
|| die "buildx v${BUILDX_VERSION} does not match the sha256 pinned in platform/buildkit/versions.env — refusing to run it"
chmod +x "${BUILDX}"
fi
info "client: $("${BUILDX}" version)"
local missing=()
[ -n "${BUILDKIT_CA:-}" ] || missing+=(BUILDKIT_CA)
[ -n "${BUILDKIT_CLIENT_CERT:-}" ] || missing+=(BUILDKIT_CLIENT_CERT)
[ -n "${BUILDKIT_CLIENT_KEY:-}" ] || missing+=(BUILDKIT_CLIENT_KEY)
[ "${#missing[@]}" -eq 0 ] || die "the builder's client certificate is missing: ${missing[*]} not set.
These Actions secrets are copied from the cert-manager Secret buildkit/buildkit-client-ci by
infra/gitea/buildkit-client-secret.sh (an operator action, after platform/buildkit is
deployed). Without them nothing can be built — this fails rather than skipping ON PURPOSE."
umask 077
printf '%s\n' "${BUILDKIT_CA}" > "${WORK}/certs/ca.pem"
printf '%s\n' "${BUILDKIT_CLIENT_CERT}" > "${WORK}/certs/cert.pem"
printf '%s\n' "${BUILDKIT_CLIENT_KEY}" > "${WORK}/certs/key.pem"
umask 022
"${BUILDX}" create --name ci-remote --driver remote \
--driver-opt "cacert=${WORK}/certs/ca.pem,cert=${WORK}/certs/cert.pem,key=${WORK}/certs/key.pem,servername=${BUILDKIT_SERVERNAME}" \
"${BUILDKIT_HOST}" >/dev/null
if ! out="$(timeout 90 "${BUILDX}" inspect --bootstrap --builder ci-remote 2>&1)"; then
printf '%s\n' "${out}" >&2
die "buildkitd is UNREACHABLE at ${BUILDKIT_HOST} — nothing can be built, and this job fails
rather than skipping. In order of likelihood:
1. platform/buildkit is not deployed yet. Flux applies it only after it merges to main
(Kustomization 'buildkit'); a pull request that ADDS it cannot reach it.
2. the BUILDKIT_* secrets are stale (the client cert was renewed) or from another CA:
re-run infra/gitea/buildkit-client-secret.sh.
3. the NetworkPolicy (platform/buildkit/networkpolicy.yaml) does not admit this runner."
fi
printf '%s\n' "${out}" | grep -E '^(Name|Driver|Status|BuildKit version|Platforms):' | sed 's/^/ /' || true
}
# KEY=VALUE lines from an image's build-image.sh --print-build-args -> a JSON object.
build_args_json() {
local ctx; ctx="$(context_of "$1")"
"./${ctx}/build-image.sh" --print-build-args | jq -Rn '[inputs | select(length>0) | capture("^(?<k>[^=]+)=(?<v>.*)$")] | map({(.k): .v}) | add'
}
# bake_run <bakefile> <targets...>
bake_run() {
local f="$1"; shift
"${BUILDX}" bake --builder ci-remote --progress plain -f "$f" \
--metadata-file "${WORK}/meta.json" "$@"
}
# Write a bake file with a verify target and a ship target for one image.
# $1 image, $2 agent base mode: "" | "link" | <image ref>
write_bake() {
local img="$1" base="${2:-}" ctx args f
ctx="$(context_of "$img")"
args="$(build_args_json "$img")"
f="${WORK}/bake-${img}.json"
local contexts='{}'
if [ "${img}" = agent-runner ]; then
if [ "${base}" = link ]; then
# FROM ${AGENT_BASE_IMAGE} resolves to the named context below, i.e. the toolbox target
# of this same bake file — built here, never pushed anywhere.
args="$(jq -c '. + {AGENT_BASE_IMAGE: "toolbox-in-this-run"}' <<<"${args}")"
contexts='{"toolbox-in-this-run": "target:toolbox"}'
else
args="$(jq -c --arg b "${base}" '. + {AGENT_BASE_IMAGE: $b}' <<<"${args}")"
fi
fi
jq -n --arg img "$img" --arg ctx "$ctx" --argjson args "$args" --argjson contexts "$contexts" \
--arg tbargs "$( [ "${base}" = link ] && build_args_json toolbox || echo '{}')" \
--arg rev "${HEAD_SHA}" --arg repo "${REGISTRY}/${NAMESPACE}/${img}" \
--arg sha "${SHA_TAG}" --arg moving "${MOVING_TAG}" --arg mode "${MODE}" '
{target: (
{
($img + "-verify"): {context: $ctx, dockerfile: "Containerfile", target: "verify",
args: $args, contexts: $contexts, output: ["type=cacheonly"]},
($img): ({context: $ctx, dockerfile: "Containerfile", target: $img, args: $args,
contexts: $contexts,
labels: {"org.opencontainers.image.revision": $rev}}
+ (if $mode == "publish"
then {tags: [($repo + ":" + $sha), ($repo + ":" + $moving)], output: ["type=image,push=true"]}
else {output: ["type=cacheonly"]} end))
}
+ (if ($contexts | has("toolbox-in-this-run"))
then {toolbox: {context: "infra/devcontainer", dockerfile: "Containerfile", target: "toolbox",
args: ($tbargs | fromjson), output: ["type=cacheonly"]}}
else {} end)
)}' > "$f"
echo "$f"
}
# --- registry helpers (publish mode only) ----------------------------------------------------
REG_TOKEN=""
registry_token() {
[ -n "${REG_TOKEN}" ] && return 0
REG_TOKEN="$(curl -fsS --config <(printf 'user = "%s:%s"\n' "${REGISTRY_USER}" "${REGISTRY_TOKEN}") \
"https://${REGISTRY}/v2/token?service=container_registry&scope=*" | jq -r '.token // empty')" \
|| die "could not obtain a registry bearer token from https://${REGISTRY}/v2/token"
[ -n "${REG_TOKEN}" ] || die "registry returned no bearer token"
}
# Prints the manifest digest the REGISTRY serves for <image>:<tag>; nothing if it is absent (404).
# Any other answer is fatal: "cannot tell" must never be read as "not published", or the
# immutable-tag guard would be bypassed by an auth hiccup.
registry_digest() {
registry_token
local hdrs code digest
hdrs="$(curl -sS -I --config <(printf 'header = "Authorization: Bearer %s"\n' "${REG_TOKEN}") \
-H 'Accept: application/vnd.oci.image.manifest.v1+json' \
-H 'Accept: application/vnd.docker.distribution.manifest.v2+json' \
-H 'Accept: application/vnd.oci.image.index.v1+json' \
-H 'Accept: application/vnd.docker.distribution.manifest.list.v2+json' \
"https://${REGISTRY}/v2/${NAMESPACE}/$1/manifests/$2" | tr -d '\r')" \
|| die "registry unreachable while reading $1:$2"
code="$(awk 'NR==1{print $2}' <<<"${hdrs}")"
digest="$(awk -F': ' 'tolower($1)=="docker-content-digest"{print $2}' <<<"${hdrs}" | tail -1)"
case "${code}" in
200) [[ "${digest}" =~ ^sha256:[0-9a-f]{64}$ ]] || die "registry answered 200 for $1:$2 with no usable digest"
echo "${digest}" ;;
404) ;;
*) die "registry answered HTTP ${code} for $1:$2 — cannot tell whether it exists" ;;
esac
}
# build_one <image> [agent base] — verify, then (publish) build + push + read back.
build_one() {
local img="$1" base="${2:-}" t0 f pushed got existing
t0=$(date +%s)
f="$(write_bake "$img" "$base")"
log "VERIFY ${img} (Containerfile target: verify, on rootless BuildKit)"
bake_run "$f" "${img}-verify"
BUILT[$img]=1
if [ "${MODE}" = publish ]; then
existing="$(registry_digest "${img}" "${SHA_TAG}")"
# Immutable tag: never overwrite. A rebuild is not byte-reproducible, so re-pushing would
# silently change what `sha-<commit>` means after something may already have pinned it.
[ -z "${existing}" ] || die "${REGISTRY}/${NAMESPACE}/${img}:${SHA_TAG} already exists (${existing}); tags are immutable"
log "BUILD + PUSH ${img} -> ${REGISTRY}/${NAMESPACE}/${img}:{${SHA_TAG},${MOVING_TAG}}"
bake_run "$f" "${img}"
pushed="$(jq -r --arg t "$img" '.[$t]["containerimage.digest"] // empty' "${WORK}/meta.json")"
# The AUTHORITATIVE digest is what the registry serves, read back — not what the client
# reported. They should agree; if they do not, nothing downstream may trust either.
got="$(registry_digest "${img}" "${SHA_TAG}")"
[ -n "${got}" ] || die "pushed ${img}:${SHA_TAG} but the registry does not serve it"
[ -z "${pushed}" ] || [ "${pushed}" = "${got}" ] || die "${img}: client reported ${pushed} but the registry serves ${got}"
[ "$(registry_digest "${img}" "${MOVING_TAG}")" = "${got}" ] \
|| die "${img}: ${MOVING_TAG} does not point at the digest just pushed (${got})"
DIGEST[$img]="${got}"
info "${img}: registry digest ${got}"
fi
SECS[$img]=$(( $(date +%s) - t0 ))
info "${img}: done in ${SECS[$img]}s"
}
# --- main ---------------------------------------------------------------------------------
log "image pipeline: MODE=${MODE} IMAGES=${IMAGES} HEAD=${HEAD_SHA}"
select_images
if [ "${MODE}" = publish ]; then
: "${REGISTRY_TOKEN:?REGISTRY_TOKEN is required in publish mode}"
REGISTRY_USER="${REGISTRY_USER:-ci-image-publisher}"
# buildx (and through it buildkitd, which does the push) reads registry auth from this file.
jq -n --arg r "${REGISTRY}" --arg a "$(printf '%s:%s' "${REGISTRY_USER}" "${REGISTRY_TOKEN}" | base64 -w0)" \
'{auths: {($r): {auth: $a}}}' > "${DOCKER_CONFIG}/config.json"
chmod 600 "${DOCKER_CONFIG}/config.json"
registry_token
# Publish idempotence: an image already published at THIS commit is not rebuilt. That is what
# makes a re-run after a half-finished publish safe — the immutable tag is never pushed twice.
for i in "${ALL_IMAGES[@]}"; do
[ -n "${WANT[$i]:-}" ] || continue
d="$(registry_digest "${i}" "${SHA_TAG}")"
if [ -n "${d}" ]; then
info "${i}: already published at ${SHA_TAG} (${d}); not rebuilding"
unset "WANT[$i]"; DIGEST[$i]="${d}"; NOTE[$i]="already published at this commit"
fi
done
fi
# Decide the agent-runner base (see header).
AGENT_BASE=""
if [ -n "${WANT[agent-runner]:-}" ]; then
PINNED_BASE="$(. ./infra/agent/versions.env; echo "${AGENT_BASE_IMAGE}")"
if [ "${MODE}" = verify ]; then
AGENT_BASE=link
[ -n "${WANT[toolbox]:-}" ] || { WANT[toolbox]=1; NOTE[toolbox]="built as agent-runner's base (verify only)"; }
elif [ -z "${WANT[toolbox]:-}" ] && [ -z "${DIGEST[toolbox]:-}" ]; then
case "${PINNED_BASE}" in
*@"${ZERO_DIGEST}") WANT[toolbox]=1; NOTE[toolbox]="never published; required as agent-runner's base" ;;
*@sha256:*) AGENT_BASE="${PINNED_BASE}" ;;
*) die "infra/agent/versions.env AGENT_BASE_IMAGE='${PINNED_BASE}' is not digest-pinned; CI will not build on a floating base" ;;
esac
fi
fi
for i in "${ALL_IMAGES[@]}"; do info "plan: ${i}: $(yn "${WANT[$i]:-}" BUILD skip) (${NOTE[$i]:-inputs unchanged})"; done
if [ -z "${WANT[toolbox]:-}${WANT[agent-runner]:-}${WANT[conformance-runner]:-}" ]; then
info "nothing to build"
else
setup_builder
fi
if [ -n "${WANT[toolbox]:-}" ]; then build_one toolbox; fi
if [ -n "${WANT[agent-runner]:-}" ]; then
if [ -z "${AGENT_BASE}" ]; then
AGENT_BASE="${REGISTRY}/${NAMESPACE}/toolbox@${DIGEST[toolbox]:?no toolbox digest to build agent-runner from}"
fi
info "agent-runner base: $( [ "${AGENT_BASE}" = link ] && echo "the toolbox built in this run (bake target: context)" || echo "${AGENT_BASE}")"
build_one agent-runner "${AGENT_BASE}"
fi
if [ -n "${WANT[conformance-runner]:-}" ]; then build_one conformance-runner; fi
# --- summary ------------------------------------------------------------------------------
{
echo "## Images (${MODE})"
echo
echo "commit \`${HEAD_SHA}\` — builder: rootless BuildKit \`${BUILDKIT_HOST}\` (mTLS)"
echo
echo "| image | verify target built | seconds | published digest (registry-returned) | note |"
echo "|---|---|---|---|---|"
for i in "${ALL_IMAGES[@]}"; do
d="${DIGEST[$i]:-}"
echo "| \`${i}\` | $(yn "${BUILT[$i]:-}" yes no) | ${SECS[$i]:--} | $(yn "${d}" "\`${REGISTRY}/${NAMESPACE}/${i}@${d}\`" -) | ${NOTE[$i]:-inputs unchanged} |"
done
echo
if [ "${MODE}" = publish ]; then
echo "Tags pushed: \`${SHA_TAG}\` (immutable) and \`${MOVING_TAG}\` (moving)."
echo "Nothing here writes to git. Renovate opens the digest-bump PR on its next run."
else
echo "Verify mode: nothing was pushed and no registry credential was present."
fi
} >>"${SUMMARY}"
log "done"
+8
View File
@@ -37,6 +37,14 @@ coverage/
infra/tofu/backend.hcl
infra/tofu/.r2.env
# Operator scratch, writable from inside the dev container (the repo is its only persistent
# read-write mount). Holds things that must never be committed: a staged copy of the SOPS age or
# WireGuard key, rendered VPN client profiles (infra/vpn-ingress/new-peer.sh writes here by
# default). `infra/ansible/.gitignore` already does this for its own .cache/; this is the same
# convention at the root. Do NOT rely on `*.key` alone to protect a staged key — that only covers
# one filename shape, which is why this rule exists.
.cache/
# Claude Code local scratch: agent worktrees + session state. Nothing here is tracked;
# ignoring it keeps `git add -A` from staging embedded worktree repos and keeps the lint
# stage (which scans untracked files) from tripping on .claude/worktrees/.
+137 -5
View File
@@ -4,6 +4,125 @@ Read this before doing anything durable. It is the delivery contract for AI codi
sessions and agents. The newest entry in `decisions/` is the current PM handoff and
takes precedence on *what* to work on; this file governs *how* it lands.
**Start with §0.** It is first because it is the rule you can break before you have read
anything else: the very first `git checkout -b` in the wrong directory has already done the
damage.
## 0. Work in your OWN workspace. Never in the shared checkout.
Before you create a branch, edit a file, or run `git` anything: **make yourself a git
worktree outside the repository root, and do all of your work there.** One workspace per
agent run, no exceptions.
# from the shared checkout, ONCE, at the start of your run
git fetch origin main
git worktree add -b <type>/<slug> /path/outside/the/repo/wt-<slug> origin/main
cd /path/outside/the/repo/wt-<slug> # everything after this happens HERE
`/path/outside/the/repo` means outside this repository's tree — your session scratchpad,
or a sibling like `/var/home/keith/source/wt-<slug>`. Branch from **`origin/main`**, never
from `main` and never from `HEAD`; see "stale base" below.
**The shared checkout is `/var/home/keith/source/home-network-k3s-impl`** — the operator's
working copy, the one you are probably started in. In it, do **not**:
- **`git checkout` / `git switch` / `git checkout -b`.** Its HEAD is shared state; moving
it moves the tree out from under whoever else is using it.
- **edit, create or delete a file.** Including "just one doc", including a file you intend
to move later.
- **`git add` / `git commit` / `git stash` / `git restore`.** `git add -A` there stages
whatever another agent left lying around; `git stash` *removes* their uncommitted work
into a place they will not look.
- **`git worktree remove` anything you did not create.**
Read-only commands there are fine, and the one write you do need is creating your own
worktree.
### Why — measured in the shared checkout, 2026-10-05
| What was measured | Value |
|---|---|
| `checkout: moving` entries in its reflog | **107** — the tree has been yanked between branches 107 times |
| the branch it was sitting on | `feat/pm-agent-issue-to-pr` — **not `main`** |
| uncommitted trees left in it by other runs | **2** (`infra/agent/`, `platform/pm-agent/`), mtimes five minutes apart the same evening |
| its local `main` vs `origin/main` | **two commits behind** (`4386d14` vs `22c94ef`) |
| registered worktrees | **42**, of which **31** are on branches already merged to `main` |
| gate scripts carrying an explicit `.claude/` exclusion | **9** |
Each row is a distinct way the shared checkout damages work:
- **Dirty tree, foreign files.** Two other runs' uncommitted directories were sitting in
it. An agent that edits there and runs `git add -A` ships someone else's half-finished
work inside its own PR, and the PR's author has no idea what those files are. This is not
hypothetical and it is not historical: **eleven minutes after those two directories were
measured, while this very section was being written, another run committed them** —
`5334abe feat(pm-agent): ...`, 1,000+ lines across `infra/agent/`, `clusters/`, `catalog/`
and `apps/` — onto the shared checkout's checked-out branch, moving its HEAD under anyone
reading it. Had this rule's author been working in that tree rather than in a worktree,
that commit and this one would have collided.
- **Stale base.** Its `main` was two commits behind `origin/main`, so
`git checkout -b x main` there branches off a tree that is already not what CI will merge
into — the gate you run locally proves a base nobody else has. Worse, it was not even *on*
`main`: a bare `git checkout -b x` would have branched off `feat/pm-agent-issue-to-pr` and
silently inherited that work into your PR. `git fetch` first, and name `origin/main`
explicitly as the start point.
- **Shared HEAD.** 107 branch switches in one tree is 107 chances to switch it while
another agent is mid-edit. The loser's changes are either carried onto the wrong branch
or lost to a checkout conflict — and the symptom surfaces in *their* session, not yours.
### Put the workspace OUTSIDE the repo root
A worktree *inside* the tree (`.claude/worktrees/agent-*/` — which is where Claude Code's
own default puts it) is a full second copy of the repo that every tree-walking check then
finds. Measured 2026-09-12: `find`-based discovery reported **the same manifest under test
once per worktree, up to 18 times**, and the L0 check comparing that listing against the
tree failed on paths that are not authored surface at all
(`platform/monitoring/tests/run.sh:115-123`). Nine gate scripts now carry an explicit
`.claude/` prune for this reason — which means the hazard is *worked around*, not fixed,
and the next check that walks the tree will hit it again. Keep the copy out of the tree and
none of that applies.
### Clean up — and expect not to be able to
31 of the 42 registered worktrees are on branches already merged to `main`. A registered
worktree **pins its branch**: while it exists, that branch cannot be deleted or checked out
anywhere else. So a left-behind workspace is a lock on a branch name, and the cost lands on
whoever next needs it.
Remove yours when you are done:
git worktree remove /path/outside/the/repo/wt-<slug>
Measured 2026-10-05: on a worktree **you created yourself, in the session scratchpad**, that
command **succeeds** — rc 0, no prompt, with or without a branch checked out. The "worktree
removal is sandbox-blocked" note in circulation is about the `.claude/worktrees/agent-*` ones
belonging to *other* sessions, some of which are additionally `locked` on git's own terms. So:
remove yours, and only yours. If removal is refused, say so in your handoff and leave the
worktree registered — do **not** `rm -rf` the directory, which leaves a registered worktree
pointing at nothing and still holding the branch.
If someone *else's* stale worktree is holding the branch you need, do not try to reclaim the
branch name. Push a `rework/<pr-number>` branch to the PR's refspec instead.
### If you are already standing in the shared checkout with edits
Stop. Do not `git stash` (that moves other agents' work too). Create your worktree as
above, redo the edits there, and leave the shared checkout's HEAD and working tree exactly
as you found them.
### Gating from a worktree
Three known breakages, all with workarounds, all required every run: see §3, "Running the
gate from a worktree".
### If you are writing a brief for another agent
The brief must name **its own explicit branch** and tell it to create **its own worktree**
from `origin/main`. "Work on the current branch" and "continue in the checkout" are how
branch sprawl and cross-contamination got here: an agent given no workspace uses the one it
is started in, which is the shared one. Also carry §3's three gate workarounds into the
brief — an agent that cannot gate will report rc 3 as green.
## 1. Never push to `main`. Ever.
Every durable change reaches `main` exactly one way:
@@ -147,15 +266,21 @@ Exit codes are a contract — do not flatten them:
| 3 | UNDETERMINED — a stage did not run. **Never report this as green.** |
`spec-immutability` reaches rc 3 whenever the sibling spec repo is not checked out
beside this one; that single skip is expected and tolerated. Any *other* skip is a
real gap in your run.
beside this one; that single skip is expected and tolerated — and from a worktree it is
avoidable outright (§3's worktree list, item 3). `gitea-settings` is the other expected
skip: it needs `SETTINGS_API_TOKEN`, which exists only in CI, so **a local run cannot
return 0** — the honest best local result is rc 3 with `gitea-settings` as the only stage
that did not run. Any *further* skip is a real gap in your run. Report the rc and name the
skipped stages; never round rc 3 up.
**Never gate on the host.** `promtool` and `kustomize` are not on the host `$PATH`,
so checks SKIP and you get a false rc 3. Only the pinned toolbox result counts.
### Running the gate from a git worktree
### Running the gate from a worktree
Two unrelated failures, both with known workarounds — put both in any agent brief:
This is the **normal** path, not an edge case — §0 requires you to be in a worktree, so
every gate run you do hits all of these. Three known breakages, all with
workarounds, all of them yours to apply every run — put them in any agent brief:
1. **`dev.sh` refuses to start:** `infra/ansible/.cache/prod.kubeconfig` is untracked
and exists only in the main checkout. Do **not** copy it (it is a credential).
@@ -166,10 +291,17 @@ Two unrelated failures, both with known workarounds — put both in any agent br
the `ENGINE` hook — a shim that intercepts `run` and re-execs
`podman run -v /path/to/main/.git:/path/to/main/.git:ro "$@"`. A traceback in
`tracked_files()` is this bug, not a broken tree.
3. **`spec-immutability` skips** — the skip called tolerated above is also *avoidable*. `dev.sh`
derives the sibling spec path from its own `REPO_ROOT`, which in a worktree is your
workspace, so `../home-network-k3s` does not resolve and it adds no mount. Mount the spec
repo read-only in the same `ENGINE` shim and pass `-e SPEC_REPO=/home-network-k3s`: with
both mounts the stage reports `pass`, not SKIPPED, and R-TEST-06 is actually covered
(measured — `decisions/2026-10-01-render-selftest-runs-in-gate.md`).
## 4. Branch naming
Use `feat/`, `fix/`, `docs/`, `chore/`. Note that `.gitea/workflows/gate.yml`'s **push**
Use `feat/`, `fix/`, `docs/`, `chore/`. **One branch, one workspace, one PR** — if you
need a second branch, make a second worktree (§0); do not re-point an existing one. Note that `.gitea/workflows/gate.yml`'s **push**
trigger lists `feature/**` — not `feat/**` — so branch pushes get no fast-feedback run.
The `pull_request` trigger fires regardless of branch name, so the PR gate is unaffected.
+19 -1
View File
@@ -11,6 +11,9 @@ specification** at [`../home-network-k3s`](../home-network-k3s).
- **Done = a green, reproducible, requirement-tagged conformance test** — never "merged," never a
manual demo (spec `docs/14`, `agents/definition-of-done.md`).
- **No work on `main`.** Every change is a feature branch merged into `main` (spec `CONTRIBUTING.md`).
- **No work in a shared checkout.** Every agent run gets its own git worktree, outside the repo
root, branched from `origin/main`. This checkout is shared mutable state — see
[`CLAUDE.md` §0](CLAUDE.md).
- **No plaintext secrets** — SOPS-encrypted only (spec `docs/07`).
- **Phase discipline** — only build what the active roadmap phase authorizes (spec `roadmap/phases.md`).
@@ -21,7 +24,8 @@ infra/ node provisioning: OpenTofu (Proxmox VE) + cloud-init + Ansible,
bootstrap/ one-time cluster bootstrap: Flux install, SOPS/age key, host Gitea
platform/ platform CONTROLLERS (Flux HelmReleases / operator bases): kyverno, cilium,
longhorn, external-snapshotter, cert-manager, externaldns, gateway, coredns,
vpn-egress, monitoring, cnpg, keycloak, oauth2-proxy, kubevirt
vpn-egress, vpn-ingress, monitoring, cnpg, keycloak, oauth2-proxy, kubevirt
(vpn-egress = pods OUT via PIA; vpn-ingress = remote clients IN via WireGuard)
platform-config/ platform CONFIGS — the custom resources of the CRDs installed above
(ClusterIssuers, Gateway, Kyverno policies, KubeVirt/CDI CRs, Keycloak CRs).
Split out because CRs and the CRDs they use cannot apply in one pass.
@@ -94,6 +98,20 @@ The running narrative — decisions, root causes, incidents, follow-ups — is
## Working on this repo
**First, get out of this checkout.** It is the operator's working copy and several agents
share it; concurrent runs here have overwritten each other's branches and left each other's
uncommitted files behind. One workspace per change:
```bash
git fetch origin main
git worktree add -b <type>/<slug> /path/outside/the/repo/wt-<slug> origin/main
cd /path/outside/the/repo/wt-<slug>
```
Outside the repo root specifically — a worktree under `.claude/worktrees/` is a second full
copy that tree-walking gate checks then count twice. The rule, the measurements behind it, and
the three gate workarounds a worktree needs are in [`CLAUDE.md` §0](CLAUDE.md) and §3.
Everything the gate needs is baked into the pinned dev container — **do not install the
toolchain on the host**:
+21
View File
@@ -191,6 +191,27 @@ spec:
- port: '3000'
protocol: TCP
---
# CiliumNetworkPolicy in-cluster client ingress allow (R-NET-02): gitea-allow-pm-agent-ingress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: gitea-allow-pm-agent-ingress
namespace: gitea
labels:
app.kubernetes.io/name: gitea
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: gitea
ingress:
- fromEndpoints:
- matchLabels:
k8s:io.kubernetes.pod.namespace: pm-agent
toPorts:
- ports:
- port: '3000'
protocol: TCP
---
# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): gitea-allow-internet-egress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
+21
View File
@@ -244,6 +244,27 @@ spec:
- port: '4180'
protocol: TCP
---
# CiliumNetworkPolicy monitoring scrape ingress allow (R-NET-02/R-OBS-01): jackett-allow-monitoring-scrape
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: jackett-allow-monitoring-scrape
namespace: jackett
labels:
app.kubernetes.io/name: jackett
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: jackett
ingress:
- fromEndpoints:
- matchLabels:
k8s:io.kubernetes.pod.namespace: monitoring
toPorts:
- ports:
- port: '44180'
protocol: TCP
---
# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): jackett-allow-internet-egress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
+2
View File
@@ -14,10 +14,12 @@ resources:
- nextcloud-db-backup-credentials-prod.sops.yaml
- nextcloud-db-backup-credentials.sops.yaml
- nextcloud-db.yaml
- pihole-bootstrap-secret.sops.yaml
- pihole-dns.yaml
- pihole-oauth2-proxy-credentials.sops.yaml
- pihole.yaml
- plex-claim-secret.sops.yaml
- plex-remote.yaml
- plex.yaml
- qbittorrent-bootstrap-secret.sops.yaml
- qbittorrent-oauth2-proxy-credentials.sops.yaml
@@ -0,0 +1,72 @@
# =================================================================================================
# PiHole WEB/API ADMIN PASSWORD — the one piece of PiHole state that was NOT declared anywhere.
# =================================================================================================
# WHY THIS FILE EXISTS. Measured on live prod 2026-10-04, `pihole.toml` marks every non-default
# setting with `### CHANGED`, and names the ones that came from the environment `### CHANGED (env)`.
# The complete list was:
#
# dns.upstreams ### CHANGED (env) <- declared, catalog/pihole.yaml
# dns.listeningMode ### CHANGED (env) <- declared, catalog/pihole.yaml
# dns.rateLimit.count ### CHANGED (env) <- declared, catalog/pihole.yaml
# misc.dnsmasq_lines ### CHANGED (env) <- declared, catalog/pihole.yaml
# files.macvendor ### CHANGED <- set by the image itself, container path
# webserver.api.pwhash ### CHANGED <- SET OUT OF BAND. Declared NOWHERE. This file.
#
# So exactly ONE operator-set value lived only on the Longhorn PVC: the admin password, as a
# one-way BALLOON-SHA256 hash. Nobody could recover it (a hash does not reverse), nothing in git
# produced it, and a rebuild from git would have come up with a DIFFERENT password — or none.
#
# THE REASON THIS BLOCKS HA, which is why it is fixed first. The next step is running more than one
# PiHole replica, and a replica with a fresh PVC would come up with its own unrelated password. The
# admin UI would then accept or reject the same credential depending on which pod answered. Declaring
# it here makes every replica, and every rebuild, identical by construction.
#
# MECHANISM: `webserver.api.password` is a real, settable FTL config key — verified in the running
# image, where `pihole setpassword` is itself just `setFTLConfigValue "webserver.api.password"` with
# the comment "pihole-FTL will automatically hash the password". So FTL takes CLEARTEXT on this key
# and writes the hash into `webserver.api.pwhash` itself. catalog/pihole.yaml therefore passes this
# value as `FTLCONF_webserver_api_password`, and the hash on the PVC becomes a derived artefact
# rather than the source of truth.
#
# DEFENCE IN DEPTH, NOT THE ONLY GATE. The admin UI is already behind the oauth2-proxy sidecar
# (`--allowed-group=platform-admins`), so this password is a SECOND gate. It is kept rather than set
# empty because the `pihole` Service still publishes port 80 (PiHole direct, bypassing the proxy on
# :4180) and only the CiliumNetworkPolicy closes it — and the default-deny policy in this repo has a
# documented drift history. An unauthenticated admin UI that can rewrite LAN DNS is not a good thing
# to leave resting on one policy staying correct. Narrowing that Service port is tracked follow-up.
#
# ROTATION: `sops` this file in your own terminal, change the value, commit. Flux re-applies the
# Secret, the pod restarts, FTL re-hashes. Do NOT `sops -d` it into a shared terminal or a log
# (CLAUDE.md section 6); read it in an editor. The value below was generated randomly at authoring
# time and has never been printed to a transcript.
apiVersion: v1
kind: Secret
metadata:
name: pihole-bootstrap
namespace: pihole
labels:
app.kubernetes.io/name: pihole
type: Opaque
stringData:
#ENC[AES256_GCM,data:TMOuRyJeb5IVn3lZPXY7lgh1KGxu7GY9+WIOLHpMB50JqzmM2tHIaWUWKTt1JtZoX/E5/Y7WCUTnfkJLhRBN2zV2MwWRBSLYVy5CMg7xV8PTLRZJYAVUYS5Trg==,iv:q+DpfT6PQfY5ZuNsmP7Ddl+PDLjSm89fJICAhYoW64k=,tag:axijaO3DaxIZgZ3LeK2hXA==,type:comment]
webui-password: ENC[AES256_GCM,data:7FcK/bUW79M46f/MlouAmATKbMnoUTNuMUjtqJ5vpU4=,iv:I8DBFB39uXZV42Ie2IPwSefmMgdKEtiDknfc9Tu7h5E=,tag:L423784UrDU3TvylpHc6KQ==,type:str]
sops:
kms: []
gcp_kms: []
azure_kv: []
hc_vault: []
age:
- recipient: age175l8mdpdfu7hq0aml3exs3gykarwjmuvr23sq56s3wjejnyk44wsp4mfzg
enc: |
-----BEGIN AGE ENCRYPTED FILE-----
YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB0MkRSNjZLZlpXYkcvaVJL
cjlqb2wrcWREZnZLdGpsTHNPWEpseHlRZnpjCnJVM1FDQ2M2dXlaS1JBZ2k2V1BP
Yi9QUDZSMzZsL09pTi93RTdjdGxtY2MKLS0tIDIrQTZIVWdhMGIxSCtlUFN2Mlho
SWVybld4VjJyaHRSKzZZU0xsUUV2SEEKbDYHV/qBZVspK7DpBW3vYjRMJ/HmAN+9
G9bOlNEp0jAtcNZEn6lpQ9ORgvmIrhJHoBQRLabdMWzNWSZsNn56tA==
-----END AGE ENCRYPTED FILE-----
lastmodified: "2026-10-04T06:01:27Z"
mac: ENC[AES256_GCM,data:rhTMTOwLOtHXHgqI5M2ZW/6w+UpLpxBlTk7NoN0wmGSqOcE+OGrXA1DhkZrJweyQT0RSNSSBm/6QMztLP81eepOzdp2rEkwvbQPK/l6K9g16Ww9c1IatS3NQsKEB8AoMDx7jBQ6exXYgggPx3MJsNYbE+WyloQ96U9KPdrecAM8=,iv:n34v2zX9D5xsaR1PFCH94mNMiuRfhUyI2lseUCoqiTA=,tag:9YmN9nIVLXfsGYIb0bUl2w==,type:str]
pgp: []
encrypted_regex: ^(data|stringData)$
version: 3.9.4
+75 -29
View File
@@ -35,34 +35,18 @@ spec:
- protocol: TCP
port: 53
---
# PVC pihole-config (R-STATE)
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: pihole-config
namespace: pihole
labels:
app.kubernetes.io/name: pihole
spec:
accessModes:
- ReadWriteOnce
storageClassName: longhorn
resources:
requests:
storage: 2Gi
---
# Deployment (R-PLAT-02)
# StatefulSet (R-PLAT-02)
apiVersion: apps/v1
kind: Deployment
kind: StatefulSet
metadata:
name: pihole
namespace: pihole
labels:
app.kubernetes.io/name: pihole
spec:
replicas: 1
strategy:
type: Recreate
replicas: 2
serviceName: pihole
podManagementPolicy: Parallel
selector:
matchLabels:
app.kubernetes.io/name: pihole
@@ -89,10 +73,22 @@ spec:
- name: FTLCONF_dns_rateLimit_count
value: '0'
- name: FTLCONF_misc_dnsmasq_lines
value: address=/${BASE_DOMAIN}/${GATEWAY_VIP};address=/unifi.${BASE_DOMAIN}/${UNIFI_L4_VIP};address=/crafty-mc.${BASE_DOMAIN}/${CRAFTY_L4_VIP};address=/pihole-dns.${BASE_DOMAIN}/${PIHOLE_DNS_VIP}
value: local-ttl=60;address=/${BASE_DOMAIN}/${GATEWAY_VIP};address=/unifi.${BASE_DOMAIN}/${UNIFI_L4_VIP};address=/crafty-mc.${BASE_DOMAIN}/${CRAFTY_L4_VIP};address=/pihole-dns.${BASE_DOMAIN}/${PIHOLE_DNS_VIP};address=/plex-vip.${BASE_DOMAIN}/${PLEX_L4_VIP}
- name: FTLCONF_webserver_api_password
valueFrom:
secretKeyRef:
name: pihole-bootstrap
key: webui-password
volumeMounts:
- name: config
mountPath: /data/config
mountPath: /etc/pihole
lifecycle:
postStart:
exec:
command:
- /bin/bash
- -c
- "# Assert the declared adlists in gravity.db. Idempotent: steady state writes nothing and\n# does NOT run a gravity rebuild.\nset -u\nGRAVITY=/etc/pihole/gravity.db\n\n# THE DECLARED SET \u2014 one URL per line, the source of truth for what PiHole blocks.\n# To add a list: add a line here, commit, let Flux reconcile. Nothing else to do.\nDECLARED='https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts'\n\n# On a fresh PVC, FTL creates gravity.db a moment after the container starts. Wait, bounded,\n# and NEVER block or fail the start: a missing DB here must not crashloop DNS for the LAN.\ni=0\nwhile [ ! -s \"$GRAVITY\" ] && [ \"$i\" -lt 90 ]; do sleep 2; i=$(expr $i + 1); done\nif [ ! -s \"$GRAVITY\" ]; then\n echo \"pihole-adlists: gravity.db absent after 180s - leaving adlists untouched\" >&2\n exit 0\nfi\n\nsql() { pihole-FTL sqlite3 \"$GRAVITY\" \"$1\"; }\nCHANGED=0\n\n# 1) Every declared URL must be present AND enabled.\necho \"$DECLARED\" | while IFS= read -r url; do\n [ -n \"$url\" ] || continue\n printf '%s\\n' \"$url\"\ndone > /tmp/declared.txt\nwhile IFS= read -r url; do\n [ -n \"$url\" ] || continue\n # Single quotes inside a URL would break this SQL; adlist URLs do not contain them.\n have=$(sql \"select count(*) from adlist where address='$url';\")\n if [ \"$have\" = \"0\" ]; then\n echo \"pihole-adlists: adding $url\"\n sql \"insert into adlist (address,enabled,comment) values ('$url',1,'declared in catalog/pihole.yaml');\"\n CHANGED=1\n else\n en=$(sql \"select enabled from adlist where address='$url';\")\n if [ \"$en\" != \"1\" ]; then\n echo \"pihole-adlists: re-enabling $url\"\n sql \"update adlist set enabled=1 where address='$url';\"\n CHANGED=1\n fi\n fi\ndone < /tmp/declared.txt\n\n# 2) Anything enabled in the DB but NOT declared gets disabled (never deleted - see above).\nsql \"select address from adlist where enabled=1;\" | while IFS= read -r addr; do\n [ -n \"$addr\" ] || continue\n if ! grep -qxF \"$addr\" /tmp/declared.txt; then\n echo \"pihole-adlists: disabling undeclared $addr\"\n sql \"update adlist set enabled=0 where address='$addr';\"\n echo changed >> /tmp/adlist-changed\n fi\ndone\n[ -s /tmp/adlist-changed ] && CHANGED=1\nrm -f /tmp/adlist-changed /tmp/declared.txt\n\n# 3) Rebuild gravity ONLY if the declared set actually moved.\nif [ \"$CHANGED\" = \"1\" ]; then\n echo \"pihole-adlists: declared set changed - running gravity update\"\n pihole -g || echo \"pihole-adlists: gravity update failed; existing gravity.db retained\" >&2\nelse\n echo \"pihole-adlists: already matches the declared set - nothing to do\"\nfi\nexit 0\n"
- name: oauth2-proxy
image: quay.io/oauth2-proxy/oauth2-proxy:v7.8.1
imagePullPolicy: IfNotPresent
@@ -163,10 +159,39 @@ spec:
port: http
initialDelaySeconds: 5
periodSeconds: 15
volumes:
- name: config
persistentVolumeClaim:
claimName: pihole-config
affinity:
podAntiAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- labelSelector:
matchLabels:
app.kubernetes.io/name: pihole
topologyKey: kubernetes.io/hostname
volumeClaimTemplates:
- metadata:
name: config
labels:
app.kubernetes.io/name: pihole
spec:
accessModes:
- ReadWriteOnce
storageClassName: longhorn
resources:
requests:
storage: 2Gi
---
# PodDisruptionBudget — keep one replica through a drain (availability.replicas)
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
name: pihole
namespace: pihole
labels:
app.kubernetes.io/name: pihole
spec:
minAvailable: 1
selector:
matchLabels:
app.kubernetes.io/name: pihole
---
# Service
apiVersion: v1
@@ -207,6 +232,27 @@ spec:
- port: '4180'
protocol: TCP
---
# CiliumNetworkPolicy monitoring scrape ingress allow (R-NET-02/R-OBS-01): pihole-allow-monitoring-scrape
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: pihole-allow-monitoring-scrape
namespace: pihole
labels:
app.kubernetes.io/name: pihole
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: pihole
ingress:
- fromEndpoints:
- matchLabels:
k8s:io.kubernetes.pod.namespace: monitoring
toPorts:
- ports:
- port: '44180'
protocol: TCP
---
# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): pihole-allow-internet-egress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
@@ -269,11 +315,11 @@ spec:
- name: pihole.slis
rules:
- alert: pihole-down
expr: kube_deployment_status_replicas_available{namespace="pihole", deployment="pihole"} == 0 or absent(kube_deployment_status_replicas_available{namespace="pihole", deployment="pihole"})
expr: kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"} == 0 or absent(kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"})
for: 5m
labels:
severity: critical
service: pihole
annotations:
summary: pihole is down
description: 'pihole: its Deployment has no available/ready replica for 5m, or the signal is gone entirely (SLI: up, via kube_deployment_status_replicas_available).'
description: 'pihole: its StatefulSet has no available/ready replica for 5m, or the signal is gone entirely (SLI: up, via kube_statefulset_status_replicas_ready).'
+126
View File
@@ -0,0 +1,126 @@
---
# =================================================================================================
# PLEX REMOTE ACCESS — raw tcp/32400 north-south exposure, and the policy that admits it.
# =================================================================================================
# HAND-WRITTEN, NOT RENDERED. A non-catalog app-tier unit anchored to the `plex` ServiceDefinition
# and placed into wave 0 by `catalog/render.py --emit-waves` via its EXTRA_UNITS table — the same
# mechanism gitea-actions and pihole-dns use. It is hand-written for the SAME reason those are:
# schemas/servicedefinition.schema.json is `additionalProperties: false` and has NO field for a
# type=LoadBalancer Service, for a pinned lbipam VIP, or for raw-TCP north-south exposure at all.
# `ingressRoutes` renders HTTPRoutes on the shared Gateway, which is an L7 HTTPS terminator.
#
# WHY THE L7 GATEWAY IS NOT ENOUGH HERE — and it is NOT because the Gateway fails to serve Plex.
# Measured 2026-10-03 through the Gateway VIP: `GET https://plex.home.keithjackson.dev/identity`
# returned HTTP 200 with `claimed="1"` and the real machineIdentifier, and the protected endpoints
# (/library/sections, /status/sessions, /:/prefs) all returned 401. The L7 path WORKS.
#
# The problem is DISCOVERY, not proxying. Plex apps (phone, TV, Roku) do not resolve
# `plex.${BASE_DOMAIN}`; they ask plex.tv for the server's connection list. A server gets onto that
# list one of two ways: it advertises a custom URL (`customConnections`, the ADVERTISE_IP env), or it
# publishes a reachable public IP:port for its own tcp/32400. Measured in the live Preferences.xml on
# 2026-10-03: `customConnections` ABSENT, `ManualPortMappingMode` ABSENT, while
# `PublishServerOnPlexOnlineKey="1"` — the server was trying to publish and had nothing reachable to
# publish, so remote clients saw NO connection at all. The operator chose the NATIVE path (this
# file) over advertising the Gateway URL: Plex then terminates its own TLS with its
# `*.plex.direct` certificate and video streams bypass the Envoy L7 hop entirely.
#
# VIP: ${PLEX_L4_VIP} (cluster-vars, R-ENV-02 — dev 192.168.1.57, prod 192.168.2.24), PINNED via
# lbipam.cilium.io/ips out of the CiliumLoadBalancerIPPool `default-pool`
# (${CILIUM_LB_POOL_START}..${CILIUM_LB_POOL_STOP}) and ARP-announced on the flat LAN by the existing
# CiliumL2AnnouncementPolicy `default-l2` (platform-config/cilium/*). No new Cilium config is needed;
# this Service just consumes the pool. PINNING IS NOT OPTIONAL: the address is typed into a WAN
# port-forward on the SOHO router, which is hand-maintained and off-repo, so it can never move.
# 192.168.2.24 verified FREE live 2026-10-03 — `default-pool` reported IPsTotal 11 / IPsUsed 4 /
# IPsAvailable 7, and the only four allocations were .20 (cilium-gateway-shared), .21 (unifi-l4-*),
# .22 (crafty-l4-*) and .23 (pihole-dns-*).
#
# ONE SERVICE, TCP ONLY. Unlike unifi/crafty/pihole-dns this needs no second Service and no
# lbipam.cilium.io/sharing-key: Plex's remote access is tcp/32400 and nothing else. (Plex's
# DLNA/GDM discovery uses UDP, but that is LAN-only multicast and is not part of remote access.)
#
# NO `loadBalancerSourceRanges`, DELIBERATELY — and this is the one place this file diverges from
# its closest sibling. apps/wave-0/pihole-dns.yaml pins its source range to ${LAN_CIDR} because a
# resolver must never answer the internet. This Service is the OPPOSITE case: admitting remote
# clients from arbitrary internet addresses is its entire purpose, so there is no range to narrow
# to. Plex authenticates every caller itself (measured above: 401 on every protected endpoint
# without a token), which is what makes an unfiltered port defensible here.
#
# NO external-dns ANNOTATION, DELIBERATELY. unifi and crafty both carry
# `external-dns.alpha.kubernetes.io/hostname` so external-dns publishes their VIP as a public
# Cloudflare record. This Service must not, for pihole-dns's reason: ${PLEX_L4_VIP} is an RFC1918
# address that is useless in public DNS. Remote clients get this server's address from plex.tv, not
# from the zone. The existing public `plex.${BASE_DOMAIN}` record is published from the rendered
# HTTPRoute via the gateway source and is NOT affected by this file — the web UI keeps working
# through the Gateway exactly as before.
#
# -------------------------------------------------------------------------------------------------
# externalTrafficPolicy: Cluster — inherited from crafty's 8-DAY LAN OUTAGE, not re-derived.
# -------------------------------------------------------------------------------------------------
# `Local` is the tempting choice because it preserves the client source IP, which this service
# actually has a use for (see the allowedNetworks note below). It is still WRONG here, for the
# reason platform/crafty/service-l4.yaml documents at length: Cilium's L2 announcer elects ONE lease
# holder per Service and does NOT follow the backend pod, so with `Local` the VIP can be announced
# by a node that has no Plex pod, which black-holes the port while every object still reports
# healthy. Plex is a single-replica Deployment with `strategy: Recreate` pinned to wherever the
# scheduler put it, so the mismatch is the normal case, not a rare one. Take the SNAT.
#
# KNOWN CONSEQUENCE OF THAT CHOICE, stated rather than discovered later: `Cluster` SNATs the client
# to the ingress NODE's address (192.168.2.1x), which falls inside the `192.168.0.0/16` entry of
# catalog/plex.yaml's ALLOWED_NETWORKS. Plex will therefore classify every REMOTE client as LAN.
# Measured 2026-10-03 on the Gateway path, which SNATs the same way: Plex logged the request as
# `[10.0.2.214:36040 (Allowed Network (WAN))]`. This is a METERING effect, not a security one —
# authorization is unchanged (401s above), but Plex's remote-quality/bandwidth limits will not bind
# on these streams because it believes they are local. Narrowing ALLOWED_NETWORKS cannot fix it
# without also de-classifying genuine LAN clients, so it is accepted.
apiVersion: v1
kind: Service
metadata:
name: plex-l4-tcp
namespace: plex
labels:
app.kubernetes.io/name: plex
annotations:
lbipam.cilium.io/ips: "${PLEX_L4_VIP}"
spec:
type: LoadBalancer
externalTrafficPolicy: Cluster
selector:
app.kubernetes.io/name: plex
ports:
- name: plex-remote
port: 32400
targetPort: 32400
protocol: TCP
---
# INGRESS allow for the raw port (R-NET-01/02).
#
# The rendered plex.yaml already carries `plex-allow-gateway-ingress` (fromEntities: ingress ->
# 32400) and three reciprocal allows for sonarr/radarr/seerr. CiliumNetworkPolicies are ADDITIVE, so
# this file adds the off-cluster case without touching those.
#
# `world` is Cilium's entity for anything outside the cluster, which is what a remote Plex client is.
# `host` and `cluster` mirror platform/crafty/networkpolicy.yaml's game-port rule and are what make
# this work under `externalTrafficPolicy: Cluster`: after SNAT the packet's source is the ingress
# NODE, which Cilium classifies as `host` (same node) or `remote-node` (a different one) — NOT
# `world`. Listing `world` alone would compile cleanly and then drop every remote stream, so all
# four entities are named.
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: plex-allow-remote-32400
namespace: plex
labels:
app.kubernetes.io/name: plex
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: plex
ingress:
- fromEntities:
- world
- cluster
- host
- remote-node
toPorts:
- ports:
- { port: "32400", protocol: TCP }
+23 -1
View File
@@ -77,7 +77,7 @@ spec:
storageClassName: longhorn
resources:
requests:
storage: 8Gi
storage: 16Gi
---
# PVC plex-media (R-STATE)
apiVersion: v1
@@ -137,6 +137,20 @@ spec:
secretKeyRef:
name: plex-claim
key: PLEX_CLAIM
- name: ADVERTISE_IP
value: https://192-168-2-24.130072f20c334d6c8f63d0dfef87309b.plex.direct:32400
- name: PLEX_TLS_CRT
valueFrom:
secretKeyRef:
name: plex-vip-tls
key: tls.crt
optional: true
- name: PLEX_TLS_KEY
valueFrom:
secretKeyRef:
name: plex-vip-tls
key: tls.key
optional: true
resources:
limits:
gpu.intel.com/i915: 1
@@ -146,6 +160,14 @@ spec:
- name: media
mountPath: /media
readOnly: true
lifecycle:
postStart:
exec:
command:
- /bin/bash
- -c
- "# NOTE \u2014 LOAD-BEARING: SHELL VARIABLES HERE ARE WRITTEN BARE, NEVER BRACE-WRAPPED.\n# This whole script is rewritten by Flux postBuild envsubst BEFORE it ever runs, so a\n# brace-wrapped name is read as a cluster-vars knob: an undeclared one is a HARD\n# Kustomization failure under StrictPostBuildSubstitutions, and a declared one would be\n# replaced with its value. Shell vars are therefore `$PX`, `$TOKEN`, `$P12` \u2014 bare. Only\n# BASE_DOMAIN below is brace-wrapped, because it IS a knob and IS meant to be\n# substituted. Command substitution `$(cmd)` is left alone and needs no escaping. A shell\n# variable written with braces would be blanked or would fail the whole Kustomization \u2014\n# this repo has already lost a gitea OIDC bootstrap to exactly that mistake, and\n# catalog/render.py now refuses to emit it (which is how this very comment got caught).\n# DELIBERATELY NO `set -u`. The TLS env vars are declared `optional: true`, so when the\n# certificate has not issued yet they are genuinely UNSET, not empty \u2014 and under `set -u`\n# the first `[ -n \"$PLEX_TLS_CRT\" ]` would abort the script, which for a postStart hook\n# means kubelet KILLS THE CONTAINER. That is the precise failure the `optional` flag exists\n# to prevent, so turning it back on here would defeat the whole design. (The alternative,\n# a brace-wrapped `:-` default, would need envsubst escaping \u2014 the trap the note above\n# describes.) Every value below is explicitly guarded instead.\nPX=\"/config/Library/Application Support/Plex Media Server/Preferences.xml\"\nCERTDIR=/config/certs\nP12=$CERTDIR/plex-vip.p12\n# The PKCS#12 passphrase protects nothing and is deliberately not a secret: Plex needs it\n# in cleartext in customCertificateKey, and it and the bundle sit on the same PVC. It is a\n# container-format requirement, not an access control.\nP12PASS=plexvip\nLANNETS='10.0.0.0/8,192.168.0.0/16'\nCERTDOMAIN=plex-vip.${BASE_DOMAIN}\nAPI=http://127.0.0.1:32400\n\n# (1) Build the PKCS#12 bundle from the PEM the Secret supplies. Rebuilt on every start so\n# a cert-manager RENEWAL is picked up with no extra moving part.\nif [ -n \"$PLEX_TLS_CRT\" ] && [ -n \"$PLEX_TLS_KEY\" ]; then\n mkdir -p $CERTDIR && chmod 700 $CERTDIR\n printf '%s' \"$PLEX_TLS_CRT\" > $CERTDIR/tls.crt\n printf '%s' \"$PLEX_TLS_KEY\" > $CERTDIR/tls.key\n chmod 600 $CERTDIR/tls.key\n if openssl pkcs12 -export -out $P12.tmp -inkey $CERTDIR/tls.key \\\n -in $CERTDIR/tls.crt -passout pass:$P12PASS 2>/dev/null; then\n mv -f $P12.tmp $P12\n chown 1000:1000 $P12 2>/dev/null || true\n chmod 600 $P12\n echo \"[plex-settings] PKCS#12 bundle written\"\n else\n rm -f $P12.tmp\n echo \"[plex-settings] WARN: pkcs12 export failed; keeping any previous bundle\" >&2\n fi\n rm -f $CERTDIR/tls.key\nelse\n echo \"[plex-settings] WARN: TLS env empty; certificate not installed this start\" >&2\nfi\n\n# (2) Wait, bounded (~90s), for the local API. /identity needs no auth.\ni=0\nwhile [ \"$i\" -lt 45 ]; do\n if [ \"$(curl -s -o /dev/null -w '%{http_code}' --max-time 5 $API/identity 2>/dev/null)\" = \"200\" ]; then\n break\n fi\n i=$(expr $i + 1); sleep 2\ndone\n\n# (3) The prefs API needs the server token. It already lives in Preferences.xml on this\n# PVC; it is never echoed here, and Plex redacts tokens in its own request log. An\n# UNCLAIMED server has none \u2014 a normal state on a fresh /config \u2014 so skip, do not fail.\nTOKEN=$(grep -o 'PlexOnlineToken=\"[^\"]*\"' \"$PX\" 2>/dev/null | head -1 | cut -d'\"' -f2)\nif [ -z \"$TOKEN\" ]; then\n echo \"[plex-settings] not claimed yet \u2014 skipping prefs, will retry next start\" >&2\n exit 0\nfi\n\n# Percent-encode what our values actually contain. Plex takes prefs as QUERY parameters on\n# a PUT, so a raw '/' or ',' would be read as structure rather than data.\nenc() {\n printf '%s' \"$1\" | sed -e 's|%|%25|g' -e 's|/|%2F|g' -e 's|,|%2C|g' \\\n -e 's|:|%3A|g' -e 's| |%20|g'\n}\nsetpref() {\n code=$(curl -s -o /dev/null -w '%{http_code}' --max-time 10 -X PUT\
\ \\\n -H \"X-Plex-Token: $TOKEN\" \"$API/:/prefs?$1=$(enc \"$2\")\" 2>/dev/null)\n if [ \"$code\" = \"200\" ]; then\n echo \"[plex-settings] set $1\"\n else\n echo \"[plex-settings] WARN: $1 -> HTTP $code\" >&2\n fi\n}\n\n# (4) THE LAN DEFINITION \u2014 the reason this hook was written. Without it Plex has NO notion\n# of a local network and tags EVERY client remote. Measured 2026-10-04: 468 requests\n# logged \"Allowed Network (WAN)\" and ZERO \"(LAN)\", including Seerr from inside the\n# cluster, which is why the server showed as Remote to LAN clients. Note allowedNetworks\n# (the ALLOWED_NETWORKS env) only waives AUTH \u2014 it does NOT make a client local. Two\n# different settings; only one of them has an env hook.\nsetpref LanNetworksBandwidth \"$LANNETS\"\n\n# (5) THE CERTIFICATE, which is what makes the `https` in ADVERTISE_IP servable. Set only\n# if the bundle exists \u2014 pointing Plex at a missing file would break its TLS listener.\nif [ -s \"$P12\" ]; then\n setpref customCertificatePath \"$P12\"\n setpref customCertificateKey \"$P12PASS\"\n setpref customCertificateDomain \"$CERTDOMAIN\"\nelse\n echo \"[plex-settings] WARN: no bundle; leaving certificate prefs untouched\" >&2\nfi\nexit 0\n"
volumes:
- name: config
persistentVolumeClaim:
+21
View File
@@ -319,6 +319,27 @@ spec:
- port: '4180'
protocol: TCP
---
# CiliumNetworkPolicy monitoring scrape ingress allow (R-NET-02/R-OBS-01): qbittorrent-allow-monitoring-scrape
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: qbittorrent-allow-monitoring-scrape
namespace: qbittorrent
labels:
app.kubernetes.io/name: qbittorrent
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: qbittorrent
ingress:
- fromEndpoints:
- matchLabels:
k8s:io.kubernetes.pod.namespace: monitoring
toPorts:
- ports:
- port: '44180'
protocol: TCP
---
# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): qbittorrent-allow-internet-egress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
+8 -6
View File
@@ -1,6 +1,8 @@
# promtool rule-unit tests for the wave-0 per-app `<app>-down` SLI rules.
# Manifests under test: every PrometheusRule in apps/wave-0/ — gitea, jackett, pihole, plex,
# qbittorrent (container/Deployment) and vm-demo (KubeVirt VMI). The harness discovers this file by
# qbittorrent (container/Deployment), pihole (container/StatefulSet — `availability.replicas: 2`, so
# its SLI reads kube_statefulset_status_replicas_ready; see schemas/renderer-contract.md
# `### availability`) and vm-demo (KubeVirt VMI). The harness discovers this file by
# the SUITE convention (`<dir>/tests/*.test.yaml`) and flattens those RENDERED manifests, so these
# tests run against the exact expressions Flux applies, never a copy.
#
@@ -41,7 +43,7 @@ tests:
values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="jackett", deployment="jackett"}'
values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="pihole", deployment="pihole"}'
- series: 'kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"}'
values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="plex", deployment="plex"}'
values: '1+0x20'
@@ -81,7 +83,7 @@ tests:
values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="jackett", deployment="jackett"}'
values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="pihole", deployment="pihole"}'
- series: 'kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"}'
values: '1+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="plex", deployment="plex"}'
values: '0+0x20'
@@ -132,7 +134,7 @@ tests:
values: '0+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="jackett", deployment="jackett"}'
values: '0+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="pihole", deployment="pihole"}'
- series: 'kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"}'
values: '0+0x20'
- series: 'kube_deployment_status_replicas_available{namespace="plex", deployment="plex"}'
values: '1+0x20'
@@ -170,10 +172,10 @@ tests:
severity: critical
service: pihole
namespace: pihole
deployment: pihole
statefulset: pihole
exp_annotations:
summary: "pihole is down"
description: "pihole: its Deployment has no available/ready replica for 5m, or the signal is gone entirely (SLI: up, via kube_deployment_status_replicas_available)."
description: "pihole: its StatefulSet has no available/ready replica for 5m, or the signal is gone entirely (SLI: up, via kube_statefulset_status_replicas_ready)."
- eval_time: 10m
alertname: qbittorrent-down
exp_alerts:
+1 -1
View File
@@ -75,7 +75,7 @@ spec:
spec:
containers:
- name: keycloak
image: quay.io/keycloak/keycloak
image: quay.io/keycloak/keycloak:26.0.6
ports:
- containerPort: 8080
volumeMounts:
+21
View File
@@ -347,6 +347,27 @@ spec:
- port: '4180'
protocol: TCP
---
# CiliumNetworkPolicy monitoring scrape ingress allow (R-NET-02/R-OBS-01): radarr-allow-monitoring-scrape
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: radarr-allow-monitoring-scrape
namespace: radarr
labels:
app.kubernetes.io/name: radarr
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: radarr
ingress:
- fromEndpoints:
- matchLabels:
k8s:io.kubernetes.pod.namespace: monitoring
toPorts:
- ports:
- port: '44180'
protocol: TCP
---
# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): radarr-allow-internet-egress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
+21
View File
@@ -345,6 +345,27 @@ spec:
- port: '4180'
protocol: TCP
---
# CiliumNetworkPolicy monitoring scrape ingress allow (R-NET-02/R-OBS-01): sonarr-allow-monitoring-scrape
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: sonarr-allow-monitoring-scrape
namespace: sonarr
labels:
app.kubernetes.io/name: sonarr
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: sonarr
ingress:
- fromEndpoints:
- matchLabels:
k8s:io.kubernetes.pod.namespace: monitoring
toPorts:
- ports:
- port: '44180'
protocol: TCP
---
# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): sonarr-allow-internet-egress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
+13
View File
@@ -208,6 +208,19 @@ inClusterClients:
namespace: flux-system # matched by NAMESPACE alone — the flux controllers' pod labels belong
# to upstream's manifests, not to this platform's contract
port: 3000 # ONLY the Gitea HTTP port — the same single port the Gateway allow opens
# The PM agent service (platform/pm-agent/). Its dispatcher reads issues and posts comments
# over this port, and every worker Job clones, pushes and opens pull requests over it. Like
# Flux's source-controller above, it dials the ClusterIP DIRECTLY — deliberately, so the
# agent's path to the repository depends on neither public DNS, nor Cloudflare, nor the
# shared Gateway, nor ${BASE_DOMAIN}. And exactly as for Flux, that means this namespace's
# own default-deny (R-NET-01) DROPS the connection unless it is declared here: without this
# entry the dispatcher's egress allow is satisfied and the packet is still discarded at the
# Gitea end, which presents as an authentication timeout rather than as a policy denial.
# That is the 2026-09-13 lesson documented at length above, applied before it is relearned.
- name: pm-agent
namespace: pm-agent # matched by NAMESPACE alone, so the dispatcher Deployment and every
# ephemeral worker Job are covered by the one declaration
port: 3000 # ONLY the Gitea HTTP port
auth:
mode: oidc # native Keycloak OIDC client (docs/13 SSO row, docs/15 "Native OIDC" set; R-IDP-02)
groups:
+8 -1
View File
@@ -5,8 +5,15 @@
# Validates against schemas/servicedefinition.schema.json.
name: keycloak
kind: container
# DOCUMENTATION-ONLY IMAGE. The running server is NOT chosen here: the Keycloak operator
# (platform/keycloak/kustomization.yaml, three pinned release URLs) picks it via its
# RELATED_IMAGE_KEYCLOAK, and the Keycloak CR has no spec.image. This SD's render,
# apps/wave-1/keycloak.yaml, is not listed in apps/wave-1/kustomization.yaml and deploys nothing
# (ci/render-golden.sh RENDER_GOLDEN_NOT_ONBOARDED). The tag records the operator's version for
# readers; renovate.json5 disables Renovate for this image so it cannot raise PRs against a file
# nothing deploys. The Keycloak version moves with the operator — update this tag by hand then.
source:
image: quay.io/keycloak/keycloak
image: quay.io/keycloak/keycloak:26.0.6
exposure: public # login/redirect flows for internet-exposed services; hardened (docs/15; R-DNS/R-NET)
egress: internet # normal WAN egress (docs/03; R-NET-05)
storage:
+228 -1
View File
@@ -12,6 +12,42 @@ storage:
- name: config
size: 2Gi
class: longhorn # replicated config state; DR-critical (docs/04 line 118; R-STATE-02/03)
# THE PVC WAS MOUNTED SOMEWHERE PIHOLE NEVER WRITES, AND SO HELD NOTHING AT ALL. Without an
# explicit mountPath the renderer defaults to /data/<name>, i.e. /data/config — but PiHole keeps
# every piece of its state in /etc/pihole. MEASURED on live prod 2026-10-04: `/etc/pihole` (7.1 M
# — gravity.db, pihole.toml, the query DB) was on the **overlay** filesystem, i.e. the
# container's EPHEMERAL layer, while `/dev/longhorn/pvc-849edb86...` sat mounted at
# /data/config holding `lost+found` and 24 K of nothing. Three consequences, all live until now:
# * every restart silently discarded PiHole's whole state, re-downloading 72 k gravity domains
# and regenerating the admin password hash;
# * `backup.policy: daily-offcluster` below has been faithfully backing up an EMPTY volume,
# which is worse than no backup because it reports success;
# * it is also why phase 1's password/adlist declaration mattered more than it first appeared —
# that state was not merely undeclared, it was ephemeral.
# This is the same class of bug catalog/plex.yaml's `config` entry documents ("Without this the
# PVC sat unused and Plex wrote to the container's EPHEMERAL layer").
#
# /etc/pihole IS THE IMAGE'S INTENDED MOUNT POINT, and an EMPTY volume there self-initialises.
# Verified in the running image, not assumed:
# * `/usr/bin/start.sh` (PID 1) calls `migrate_gravity`, whose `migrate_to_database()` creates
# the gravity database when `[ ! -e "$gravityDBfile" ]` — the same branch the postStart hook
# below relies on, and the branch that produced the current ephemeral copy.
# * FTL writes `pihole.toml` itself from the `FTLCONF_*` env above (that is what the
# `### CHANGED (env)` markers in it are).
# * NO `podSecurityContext.fsGroup` is needed and adding one would be inert: `start.sh` line 5
# is `chown -R pihole:pihole /etc/pihole/ /var/log/pihole/` and PID 1 runs as **uid 0**, so
# the image fixes ownership of a fresh root-owned volume before anything else starts. Same
# arrangement as plex's image managing its own /config ownership.
# * the image's own default for `files.macvendor` was moved OUT of this directory (to
# `/macvendor.db`), which is what a maintainer does to a path they expect to be a volume.
#
# WHY IT IS FIXED IN THIS BRANCH rather than left for its own: `availability.replicas: 2` renders
# per-replica volumeClaimTemplates, and with the wrong mountPath those would be two 2 Gi Longhorn
# volumes (times three Longhorn replicas each) holding nothing but `lost+found` while all state
# stayed ephemeral — paying the cost of persistence and getting none of it. It also REMOVES this
# change's main operational risk: with gravity.db persisted, a pod restart is cheap, instead of
# every restart re-downloading 72 k domains inside a wave that has a 5 m timeout.
mountPath: /etc/pihole
dependencies: [] # default-deny: reaches only DNS; it PROVIDES DNS (docs/03; R-NET-01/02)
# ------------------------------------------------------------------------------------------------
# LAN SPLIT-HORIZON DNS — the half of R-DNS-03 that platform/coredns/coredns-custom.yaml defers to.
@@ -98,8 +134,95 @@ env:
# then silently wrong: FTL stores `["a","b"]` as ONE array element containing those literal
# characters, writes that single bogus line into /etc/pihole/dnsmasq.conf and reports "0 invalid"
# while resolution for the zone does not work. Confirmed both ways against the live image.
# plex-vip -> ${PLEX_L4_VIP} (added 2026-10-04) is the LAN HALF of Plex's single advertised
# hostname. Plex publishes ONE URL to plex.tv for both local and remote clients
# (catalog/plex.yaml ADVERTISE_IP): on the LAN this answer points it at the tcp/32400
# LoadBalancer, while Cloudflare answers the same name publicly with the WAN address, NATed to
# the same VIP. WITHOUT THIS LINE the entry above answers it with ${GATEWAY_VIP} via the zone
# wildcard, where NOTHING listens on 32400 — measured 2026-10-04, plex-vip.${BASE_DOMAIN}
# resolved to the Gateway VIP and a connect to :32400 there returned http=000. That is a silent
# failure: the Plex web UI on plex.${BASE_DOMAIN} keeps working through the Gateway on 443 while
# every client that takes the ADVERTISED connection cannot reach the server at all.
#
# ── local-ttl=60 — THE SPLIT-HORIZON ANSWER MUST BE CACHEABLE ────────────────────────────────
# MEASURED 2026-10-18, diagnosing "DNS flapping between the cluster ingress and the public IP":
#
# dig home.keithjackson.dev @192.168.2.23 (pihole) -> 192.168.2.20 TTL=0
# dig home.keithjackson.dev @1.1.1.1 (public) -> wan.home.keithjackson.dev TTL=300
# dig home.keithjackson.dev @192.168.2.1 (router) -> wan.... TTL=153 -> 148 -> 143
#
# dnsmasq answers `address=` entries with **TTL 0** unless told otherwise, and that is the whole
# bug. The SOHO router forwards LAN queries to PiHole and CACHES the result, so:
# * the CORRECT answer is UNCACHEABLE (TTL 0) -- the router must re-query PiHole on every
# single lookup, which is maximum exposure to any momentary gap; while
# * the WRONG answer is CACHEABLE FOR 5 MINUTES -- the instant the router falls back to its
# upstream (standard forwarder behaviour when the forward target does not answer) it latches
# the public WAN address and serves it to EVERY LAN CLIENT for the public record's 300s TTL.
# The decrementing TTL on the router's reply above is the proof it caches rather than forwarding
# live. So ONE sub-second PiHole gap -- a pod restart, an L2 announcement lease moving, an ARP
# flap, a kured node reboot -- becomes FIVE MINUTES of the whole house resolving to the WAN IP.
# That asymmetry, not the gap, is why this is visible as "flapping" rather than a blip.
#
# 60s is a deliberate floor, not a tuning knob: long enough to ride out a pod restart and a lease
# re-election (both seconds), short enough that a genuine VIP change still propagates inside a
# minute. These VIPs are pinned by name (`lbipam.cilium.io/ips`) and effectively static, so the
# propagation cost is theoretical while the flap it prevents is measured. If flaps persist across
# LONGER outages, raising this toward the public record's 300 would cover them -- at the cost of
# the same delay on a real change. It does NOT help when PiHole is down longer than the TTL: the
# cache expires, the router falls back, and the public answer latches again. That is a real
# outage, and the fix for it is PiHole availability, not DNS caching.
#
# Applies to every `address=` reply below (dnsmasq: local-ttl governs replies made from
# configuration, /etc/hosts and DHCP leases), so one directive covers all five names.
- name: FTLCONF_misc_dnsmasq_lines
value: "address=/${BASE_DOMAIN}/${GATEWAY_VIP};address=/unifi.${BASE_DOMAIN}/${UNIFI_L4_VIP};address=/crafty-mc.${BASE_DOMAIN}/${CRAFTY_L4_VIP};address=/pihole-dns.${BASE_DOMAIN}/${PIHOLE_DNS_VIP}"
value: "local-ttl=60;address=/${BASE_DOMAIN}/${GATEWAY_VIP};address=/unifi.${BASE_DOMAIN}/${UNIFI_L4_VIP};address=/crafty-mc.${BASE_DOMAIN}/${CRAFTY_L4_VIP};address=/pihole-dns.${BASE_DOMAIN}/${PIHOLE_DNS_VIP};address=/plex-vip.${BASE_DOMAIN}/${PLEX_L4_VIP}"
# THE ADMIN PASSWORD, previously the ONE operator-set value declared nowhere. Sourced from
# apps/wave-0/pihole-bootstrap-secret.sops.yaml (SOPS/age, same wave => same reconcile), which
# carries the full rationale and the measurement that found it.
#
# `webserver.api.password` takes CLEARTEXT and FTL hashes it itself into `webserver.api.pwhash`.
# Verified in the running image, not assumed: `pihole setpassword` is itself
# `setFTLConfigValue "webserver.api.password" "$PASSWORD"`, commented upstream as "pihole-FTL will
# automatically hash the password". So the BALLOON-SHA256 hash on the PVC is now a DERIVED artefact
# and this is its source of truth. Rotating the Secret rotates the password.
- name: FTLCONF_webserver_api_password
valueFrom:
secretKeyRef:
name: pihole-bootstrap
key: webui-password
availability:
# TWO REPLICAS, ON DIFFERENT NODES. LAN DNS is a critical network service and it was ONE pod on
# ONE node. Measured 2026-10-04, that cost more than "until it reschedules":
# * the node running the pod dies -> ~40s to mark it NotReady, then `tolerationSeconds: 300`
# before the pod is even evicted, then reschedule, then Longhorn must force-detach the RWO
# volume from a dead node and reattach it. Roughly 6-10 MINUTES with no LAN resolution.
# * the node holding the `pihole-dns-*` L2 lease dies -> Cilium re-elects an announcer, tens of
# seconds. (These were DIFFERENT nodes: lease on k3s-prod-2, pod on k3s-prod-1. Two of three
# nodes were single points of failure for LAN DNS, with wildly different blast radii.)
# The Services already tolerate this: `externalTrafficPolicy: Cluster` on the DNS LoadBalancers
# (apps/wave-0/pihole-dns.yaml) means the L2 lease holder forwards to ANY ready backend, so a
# second replica is picked up with no change there.
#
# WHAT THIS DOES NOT FIX, and it is the bigger risk: LAN DNS still depends on the CLUSTER. etcd
# quorum loss, a Cilium regression, a Longhorn problem or a bad reconcile takes DNS down
# everywhere regardless of replica count. The only thing that removes that dependency is a
# resolver outside the cluster carrying the same `address=` lines. Considered and not chosen
# (operator decision, 2026-10-04); see decisions/2026-10-04-pihole-multi-replica.md.
#
# THE PREREQUISITE WAS DONE FIRST, and this field would have been actively harmful without it. A
# replica gets a FRESH volume, and until 2026-10-04 PiHole's admin password and adlists lived only
# on the PVC — so replica 1 would have come up SERVING DNS AND BLOCKING NOTHING, with a different
# password, and answers would have varied by which pod replied. Both are now declared (the
# password as a SOPS Secret -> FTLCONF_webserver_api_password; the adlists reconciled into
# gravity.db by the postStart hook below), which is what makes a fresh replica identical to its
# sibling. See decisions/2026-10-04-pihole-declare-state.md.
#
# WHY 2 AND NOT 3. Two tolerates the loss of any single node, which is the stated goal, and leaves
# a spare node for the evicted replica to land on under the HARD anti-affinity the renderer emits.
# Three would pin one replica per node with no spare, so a single node failure would leave a
# replica permanently Pending and — `apps-wave-0` being `wait: true` — stall the app tier for as
# long as the node was down. Two is the count that degrades gracefully here.
replicas: 2
ingressRoutes:
- host: pihole.${BASE_DOMAIN}
port: 80 # admin web UI, protected at the Gateway by forward-auth (docs/09)
@@ -114,6 +237,110 @@ auth:
# rather than a renderer constant: the measurement that justifies the flag on two apps is
# evidence about those two apps. Its oauth2-proxy log holds 0 unauthenticated requests across
# the current pod's whole 23h lifetime (measured 2026-10-01), so there is nothing to act on.
lifecycle:
# LEVEL-TRIGGERED ADLIST ASSERTION, run on EVERY container start. Same pattern, and the same
# reasoning, as catalog/qbittorrent.yaml's postStart: desired state lives in git and is
# RE-ASSERTED unconditionally rather than set once by hand.
#
# WHY THIS IS NEEDED AT ALL — the blocklists were NOT reproducible from git. Measured on live prod
# 2026-10-04: `gravity.db` held exactly ONE adlist (StevenBlack's hosts, enabled) and 72,234
# gravity domains, and NOTHING in this repo named it. Worse, a FRESH database does not seed it:
# the image's own schema template `/etc/.pihole/advanced/Templates/gravity.db.sql` creates the
# `adlist` table and inserts NO rows into it (grepped in the running image — there is no
# `INSERT INTO adlist` at all). So a rebuild from git, or a replica with a new PVC, would come up
# SERVING DNS AND BLOCKING NOTHING, silently and with every object reporting healthy.
#
# WHY A postStart HOOK AND NOT A FILE. PiHole v6 keeps adlists as DB rows, not config. The
# `/etc/pihole/adlists.list` file still exists in `gravity.sh` but is MIGRATION-ONLY: its import
# sits inside `migrate_to_database()`, guarded by `if [ ! -e "$gravityDBfile" ]`, so it fires only
# while CREATING a database and never again on an existing one. A ConfigMap mounted there would
# therefore be silently ignored on every pod this cluster currently runs. There is also no
# `pihole adlist` CLI subcommand (only allow/deny for domains), so SQL against the DB is the
# actual interface. FTL ships an embedded shell (`pihole-FTL sqlite3`, SQLite 3.53.1) so no extra
# tooling is needed in the image.
#
# IT RECONCILES, IT DOES NOT JUST ADD: adlists present in the DB but absent from DECLARED below are
# DISABLED (not deleted — deleting cascades to `gravity` rows and would force a full re-download of
# everything on a typo). So this list is the source of truth in both directions, and `pihole -g`
# runs ONLY when something actually changed, which keeps the steady-state start free of a 70k-domain
# rebuild.
#
# NO BRACED DOLLAR EXPANSION ANYWHERE IN THIS SCRIPT, DELIBERATELY — the same contract
# catalog/qbittorrent.yaml documents at length. apps-wave-0 declares postBuild.substituteFrom
# cluster-vars, so Flux runs envsubst over this whole manifest at reconcile time; a `${VAR}` form
# would behave differently on the cluster than under a plain `kubectl apply` of the golden. Bare
# `$VAR` and `$(cmd)` are untouched by envsubst and so behave identically however this is run.
# `render.py`'s assert_substitution_safe refuses to emit a manifest that breaks this.
postStart:
exec:
command:
- /bin/bash
- -c
- |
# Assert the declared adlists in gravity.db. Idempotent: steady state writes nothing and
# does NOT run a gravity rebuild.
set -u
GRAVITY=/etc/pihole/gravity.db
# THE DECLARED SET — one URL per line, the source of truth for what PiHole blocks.
# To add a list: add a line here, commit, let Flux reconcile. Nothing else to do.
DECLARED='https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts'
# On a fresh PVC, FTL creates gravity.db a moment after the container starts. Wait, bounded,
# and NEVER block or fail the start: a missing DB here must not crashloop DNS for the LAN.
i=0
while [ ! -s "$GRAVITY" ] && [ "$i" -lt 90 ]; do sleep 2; i=$(expr $i + 1); done
if [ ! -s "$GRAVITY" ]; then
echo "pihole-adlists: gravity.db absent after 180s - leaving adlists untouched" >&2
exit 0
fi
sql() { pihole-FTL sqlite3 "$GRAVITY" "$1"; }
CHANGED=0
# 1) Every declared URL must be present AND enabled.
echo "$DECLARED" | while IFS= read -r url; do
[ -n "$url" ] || continue
printf '%s\n' "$url"
done > /tmp/declared.txt
while IFS= read -r url; do
[ -n "$url" ] || continue
# Single quotes inside a URL would break this SQL; adlist URLs do not contain them.
have=$(sql "select count(*) from adlist where address='$url';")
if [ "$have" = "0" ]; then
echo "pihole-adlists: adding $url"
sql "insert into adlist (address,enabled,comment) values ('$url',1,'declared in catalog/pihole.yaml');"
CHANGED=1
else
en=$(sql "select enabled from adlist where address='$url';")
if [ "$en" != "1" ]; then
echo "pihole-adlists: re-enabling $url"
sql "update adlist set enabled=1 where address='$url';"
CHANGED=1
fi
fi
done < /tmp/declared.txt
# 2) Anything enabled in the DB but NOT declared gets disabled (never deleted - see above).
sql "select address from adlist where enabled=1;" | while IFS= read -r addr; do
[ -n "$addr" ] || continue
if ! grep -qxF "$addr" /tmp/declared.txt; then
echo "pihole-adlists: disabling undeclared $addr"
sql "update adlist set enabled=0 where address='$addr';"
echo changed >> /tmp/adlist-changed
fi
done
[ -s /tmp/adlist-changed ] && CHANGED=1
rm -f /tmp/adlist-changed /tmp/declared.txt
# 3) Rebuild gravity ONLY if the declared set actually moved.
if [ "$CHANGED" = "1" ]; then
echo "pihole-adlists: declared set changed - running gravity update"
pihole -g || echo "pihole-adlists: gravity update failed; existing gravity.db retained" >&2
else
echo "pihole-adlists: already matches the declared set - nothing to do"
fi
exit 0
update:
channel: stable # R-UPD-01
range: ">=2024.0.0"
+222 -9
View File
@@ -72,14 +72,227 @@ env:
secretKeyRef:
name: plex-claim
key: PLEX_CLAIM
# ADVERTISE_IP ("Custom server access URLs") is DEFERRED, not accidentally omitted. It tells Plex
# which URL to advertise to plex.tv for REMOTE clients. The only candidate is
# https://plex.home.keithjackson.dev, but that host resolves via split-horizon DNS to the INTERNAL
# Gateway VIP (conformance/tests/l2-behavioral/dns-internal-resolution), and both its public
# reachability and whether the TLS-terminating Cilium Gateway proxies Plex's 32400 API correctly for
# remote access are UNVERIFIED. Advertising a wrong/internal-only URL breaks remote access for ALL
# clients, so per "prefer safety over completeness" it is left unset. FOLLOW-UP: once remote
# reachability through the Gateway is confirmed, set ADVERTISE_IP: "https://plex.home.keithjackson.dev:443".
# ADVERTISE_IP ("Custom server access URLs") — the connection Plex publishes to plex.tv.
#
# THE VALUE MUST BE RESOLVABLE BY EVERY CLIENT, NOT JUST BY CLIENTS THAT USE OUR DNS. That single
# property is what this field keeps getting wrong, so it is the first thing to check before
# changing it. A Plex client resolves the advertised host ITSELF, with whatever resolver it
# happens to use — and on a real LAN that is frequently NOT PiHole: browsers ship DoH on by
# default, phones have "private DNS", guest and IoT devices often take the router's DNS, and some
# clients hard-code a public resolver.
#
# THAT IS NOT THEORETICAL — IT TOOK PLEX DOWN FOR THE WHOLE LAN ON 2026-10-05. This field briefly
# advertised `plex-vip.${BASE_DOMAIN}`, a name that exists ONLY in PiHole's split-horizon answers
# (catalog/pihole.yaml) and in no public zone. Clients that did not use PiHole could not resolve
# it; the SOHO router answered the failed lookup with ITSELF, and every one of them landed on the
# router's own web UI and reported a certificate error for `CN = %D`. Measured 2026-10-05: the
# router serves that self-signed cert (`C = ZZ, O = %D342e7e6b, CN = %D`) on BOTH `192.168.2.1:443`
# and the WAN address, while PiHole itself was answering perfectly — both replicas returned
# `plex-vip -> ${PLEX_L4_VIP}` and `plex -> ${GATEWAY_VIP}`. The DNS was right; the DEPENDENCY on
# it was the bug. Nothing Plex advertises listens on 443, which is how we know the clients had left
# the Plex path entirely and were talking to the router.
#
# SO: `<dashed-ip>.<serverhash>.plex.direct`, WHICH IS RESOLVER-INDEPENDENT. This is Plex's own
# mechanism and the reason it exists: `plex.direct` is a PUBLIC zone that returns the private
# address embedded in the label, so EVERY resolver on earth — PiHole, the router, 1.1.1.1, a DoH
# browser — answers `192-168-2-24.<hash>.plex.direct` with `192.168.2.24`. It needs no
# split-horizon entry, no Cloudflare record, and no certificate work, because the wildcard cert
# Plex already serves on 32400 covers exactly this name. Re-verified live 2026-10-05 with FULL
# validation (no `curl -k`): resolves to 192.168.2.24 and `/identity` returns **200, TLS verified**.
#
# WHY NOT THE NICER HOSTNAME, since a readable name in our own zone is obviously more pleasant:
# it cannot be made to work for clients that bypass PiHole. A public record for it would resolve
# to the WAN address, and with no NAT hairpin on this router a LAN client sent there fails too —
# so the hostname is correct ONLY for clients using PiHole, and wrong for the rest. There is no
# configuration of that name that is right for both. `plex.direct` is right for both.
# (The PiHole `plex-vip` answer is KEPT — it is harmless, costs nothing, and is genuinely useful
# for reaching the VIP by name from a LAN shell. It is simply not what Plex advertises.)
#
# THE TWO EMBEDDED VALUES, and the honest cost of this choice. The dashed IP must track
# ${PLEX_L4_VIP} and `<serverhash>` is this server's certificate identity — read it from the live
# listener with
# openssl s_client -connect <vip>:32400 </dev/null | openssl x509 -noout -subject
# Nothing in this tree can derive either, and nothing checks that they still agree: envsubst
# cannot dash an IP, so this is a literal. That fragility is real and was the reason the hostname
# was tried in the first place — it is accepted here because an unresolvable name is a WORSE
# failure (silent, LAN-wide, and it points users at the router) than a stale literal, which at
# least fails loudly and only after someone changes the VIP.
#
# The image's /etc/cont-init.d/40-plex-first-run runs `setPref "customConnections"
# "${ADVERTISE_IP}"` (line 127, verified in the running image), OUTSIDE the
# PLEX_CLAIM/PlexOnlineToken guard, with its `/.firstRunComplete` marker on the container OVERLAY
# fs rather than the /config PVC — so this is re-applied on EVERY pod start and git, not a web
# form, owns the value.
- name: ADVERTISE_IP
value: https://192-168-2-24.130072f20c334d6c8f63d0dfef87309b.plex.direct:32400
# THE TLS MATERIAL FOR THE NAME ABOVE, as PEM text in env rather than a mounted volume.
# `plex-vip-tls` is issued by cert-manager from ClusterIssuer `letsencrypt-prod` for exactly
# `plex-vip.${BASE_DOMAIN}` (apps/wave-0/plex-cert.yaml, same wave => same reconcile as this
# workload). The postStart hook converts it to the PKCS#12 bundle Plex requires.
#
# WHY ENV AND NOT A VOLUME, which would be the conventional choice. MEASURED 2026-10-04:
# `schemas/servicedefinition.schema.json` `storage` accepts only
# [class, export, mountPath, name, readOnly, size, subPath] with `additionalProperties: false`,
# `catalog/render.py` emits NO secret volumes, and no rendered app mounts a Secret as a volume.
# Mounting one therefore needs a schema + renderer change; `env.valueFrom.secretKeyRef` is
# already in the schema and already used by PLEX_CLAIM above. PEM is text, so it survives an env
# var intact (a raw PKCS#12 would not — it is binary and carries NUL bytes).
#
# COST, STATED PLAINLY: the private key is readable from this container's environment
# (/proc/1/environ, `kubectl exec env`) by anything that can already exec into the pod. That is
# the same audience that can read the converted bundle under /config, so the marginal exposure is
# small — but a secret VOLUME would still be the better shape, and adding secret-volume support
# to the schema is the clean follow-up that removes this note.
#
# `optional: true` IS LOAD-BEARING, NOT DEFENSIVE CLUTTER (schema 1.11.0, added for this). The
# Certificate is issued INTO THIS NAMESPACE, and the namespace is created by the rendered
# apps/wave-0/plex.yaml itself — so the cert CANNOT be issued in an earlier tier, and the
# Certificate and this Deployment land in the SAME reconcile. On a cold bootstrap the Secret is
# therefore briefly absent while cert-manager completes a DNS01 challenge. With a HARD ref, Plex
# would sit in CreateContainerConfigError until a certificate issued — and because `apps-wave-0`
# is `wait: true` with `apps-wave-1` dependsOn it, a failed or slow issuance would STALL THE WHOLE
# APP TIER (the same hazard the `hardware` block below documents for the GPU resource). Optional
# instead means: no cert -> Plex still starts and serves, the postStart hook logs that the
# certificate was not installed, and the next start after issuance converges. Plex falls back to
# its own `*.plex.direct` certificate in the meantime, so the degraded state is "advertised URL
# not yet servable over TLS", not "media server down".
- name: PLEX_TLS_CRT
valueFrom:
secretKeyRef:
name: plex-vip-tls
key: tls.crt
optional: true
- name: PLEX_TLS_KEY
valueFrom:
secretKeyRef:
name: plex-vip-tls
key: tls.key
optional: true
lifecycle:
# LEVEL-TRIGGERED PLEX SETTINGS, re-asserted on EVERY container start — the same pattern and the
# same reasoning as catalog/pihole.yaml's and catalog/qbittorrent.yaml's postStart: desired state
# lives in git and is re-asserted unconditionally rather than typed into a web form once. Typing
# settings into the web form is precisely what took this service down on 2026-10-04.
#
# IT EXISTS BECAUSE THE IMAGE HAS NO ENV FOR THESE SETTINGS. Measured 2026-10-04 across the whole
# init surface (/etc/cont-init.d, /etc/services.d, /plex-common.sh, /usr/local/bin): the image
# calls setPref for exactly SIX prefs — MachineIdentifier, ProcessedMachineIdentifier,
# PlexOnlineToken, customConnections, allowedNetworks, TranscoderTempDirectory — and supports NO
# generic PLEX_PREFERENCE* hook of any kind. The two things we need (a LAN definition and a custom
# certificate) are reachable ONLY through Plex's own API, so this hook is the only GitOps path.
#
# IT MUST NEVER FAIL. A postStart hook that exits non-zero makes kubelet KILL the container, so
# every step is bounded and the script ends with an unconditional `exit 0`. A missing token, an
# unissued certificate or an unreachable API degrades to "not applied this start" and is retried
# on the next one; it never crashloops Plex.
postStart:
exec:
command:
- /bin/bash
- -c
- |
# NOTE — LOAD-BEARING: SHELL VARIABLES HERE ARE WRITTEN BARE, NEVER BRACE-WRAPPED.
# This whole script is rewritten by Flux postBuild envsubst BEFORE it ever runs, so a
# brace-wrapped name is read as a cluster-vars knob: an undeclared one is a HARD
# Kustomization failure under StrictPostBuildSubstitutions, and a declared one would be
# replaced with its value. Shell vars are therefore `$PX`, `$TOKEN`, `$P12` — bare. Only
# BASE_DOMAIN below is brace-wrapped, because it IS a knob and IS meant to be
# substituted. Command substitution `$(cmd)` is left alone and needs no escaping. A shell
# variable written with braces would be blanked or would fail the whole Kustomization —
# this repo has already lost a gitea OIDC bootstrap to exactly that mistake, and
# catalog/render.py now refuses to emit it (which is how this very comment got caught).
# DELIBERATELY NO `set -u`. The TLS env vars are declared `optional: true`, so when the
# certificate has not issued yet they are genuinely UNSET, not empty — and under `set -u`
# the first `[ -n "$PLEX_TLS_CRT" ]` would abort the script, which for a postStart hook
# means kubelet KILLS THE CONTAINER. That is the precise failure the `optional` flag exists
# to prevent, so turning it back on here would defeat the whole design. (The alternative,
# a brace-wrapped `:-` default, would need envsubst escaping — the trap the note above
# describes.) Every value below is explicitly guarded instead.
PX="/config/Library/Application Support/Plex Media Server/Preferences.xml"
CERTDIR=/config/certs
P12=$CERTDIR/plex-vip.p12
# The PKCS#12 passphrase protects nothing and is deliberately not a secret: Plex needs it
# in cleartext in customCertificateKey, and it and the bundle sit on the same PVC. It is a
# container-format requirement, not an access control.
P12PASS=plexvip
LANNETS='10.0.0.0/8,192.168.0.0/16'
CERTDOMAIN=plex-vip.${BASE_DOMAIN}
API=http://127.0.0.1:32400
# (1) Build the PKCS#12 bundle from the PEM the Secret supplies. Rebuilt on every start so
# a cert-manager RENEWAL is picked up with no extra moving part.
if [ -n "$PLEX_TLS_CRT" ] && [ -n "$PLEX_TLS_KEY" ]; then
mkdir -p $CERTDIR && chmod 700 $CERTDIR
printf '%s' "$PLEX_TLS_CRT" > $CERTDIR/tls.crt
printf '%s' "$PLEX_TLS_KEY" > $CERTDIR/tls.key
chmod 600 $CERTDIR/tls.key
if openssl pkcs12 -export -out $P12.tmp -inkey $CERTDIR/tls.key \
-in $CERTDIR/tls.crt -passout pass:$P12PASS 2>/dev/null; then
mv -f $P12.tmp $P12
chown 1000:1000 $P12 2>/dev/null || true
chmod 600 $P12
echo "[plex-settings] PKCS#12 bundle written"
else
rm -f $P12.tmp
echo "[plex-settings] WARN: pkcs12 export failed; keeping any previous bundle" >&2
fi
rm -f $CERTDIR/tls.key
else
echo "[plex-settings] WARN: TLS env empty; certificate not installed this start" >&2
fi
# (2) Wait, bounded (~90s), for the local API. /identity needs no auth.
i=0
while [ "$i" -lt 45 ]; do
if [ "$(curl -s -o /dev/null -w '%{http_code}' --max-time 5 $API/identity 2>/dev/null)" = "200" ]; then
break
fi
i=$(expr $i + 1); sleep 2
done
# (3) The prefs API needs the server token. It already lives in Preferences.xml on this
# PVC; it is never echoed here, and Plex redacts tokens in its own request log. An
# UNCLAIMED server has none — a normal state on a fresh /config — so skip, do not fail.
TOKEN=$(grep -o 'PlexOnlineToken="[^"]*"' "$PX" 2>/dev/null | head -1 | cut -d'"' -f2)
if [ -z "$TOKEN" ]; then
echo "[plex-settings] not claimed yet — skipping prefs, will retry next start" >&2
exit 0
fi
# Percent-encode what our values actually contain. Plex takes prefs as QUERY parameters on
# a PUT, so a raw '/' or ',' would be read as structure rather than data.
enc() {
printf '%s' "$1" | sed -e 's|%|%25|g' -e 's|/|%2F|g' -e 's|,|%2C|g' \
-e 's|:|%3A|g' -e 's| |%20|g'
}
setpref() {
code=$(curl -s -o /dev/null -w '%{http_code}' --max-time 10 -X PUT \
-H "X-Plex-Token: $TOKEN" "$API/:/prefs?$1=$(enc "$2")" 2>/dev/null)
if [ "$code" = "200" ]; then
echo "[plex-settings] set $1"
else
echo "[plex-settings] WARN: $1 -> HTTP $code" >&2
fi
}
# (4) THE LAN DEFINITION — the reason this hook was written. Without it Plex has NO notion
# of a local network and tags EVERY client remote. Measured 2026-10-04: 468 requests
# logged "Allowed Network (WAN)" and ZERO "(LAN)", including Seerr from inside the
# cluster, which is why the server showed as Remote to LAN clients. Note allowedNetworks
# (the ALLOWED_NETWORKS env) only waives AUTH — it does NOT make a client local. Two
# different settings; only one of them has an env hook.
setpref LanNetworksBandwidth "$LANNETS"
# (5) THE CERTIFICATE, which is what makes the `https` in ADVERTISE_IP servable. Set only
# if the bundle exists — pointing Plex at a missing file would break its TLS listener.
if [ -s "$P12" ]; then
setpref customCertificatePath "$P12"
setpref customCertificateKey "$P12PASS"
setpref customCertificateDomain "$CERTDOMAIN"
else
echo "[plex-settings] WARN: no bundle; leaving certificate prefs untouched" >&2
fi
exit 0
# HARDWARE TRANSCODING — the host iGPU's render device (schema 1.8.0 `hardware`; R-PLAT-02).
# INTENT ONLY, AND THE MECHANISM DELIBERATELY DOES NOT LIVE HERE. This says "this workload needs an
# Intel Quick Sync render device"; it does NOT name a device path and it does NOT name a resource.
@@ -138,7 +351,7 @@ exposure: public # edge port-forward + public DNS; clients + Seerr
egress: internet # normal WAN egress (docs/03; R-NET-05)
storage:
- name: config
size: 8Gi
size: 16Gi
class: longhorn # Plex DB/metadata: replicated app state on the 3-replica tier (docs/04; R-STATE-01/02)
mountPath: /config # plexinc/pms-docker writes its identity/claim + "Library" DB under /config, NOT the
# renderer default /data/config. Without this the PVC sat unused and Plex wrote to the
+2 -2
View File
@@ -359,7 +359,7 @@ storage:
# The live /config contents were copied onto each PVC before this landed,
# so API keys and credentials other apps reference were preserved.
# THE DOWNLOADS AREA — ONE mount of the SAME export sonarr/radarr/plex already consume
# (192.168.2.102:/mnt/Storage/plex), narrowed by subPath to the `downloads` subtree and presented at
# (192.168.2.30:/mnt/Storage/plex), narrowed by subPath to the `downloads` subtree and presented at
# /downloads, which is precisely where this app is ALREADY configured to write.
#
# WHY subPath: downloads AND NOT THE EXPORT ROOT AT /media (the shape sonarr/radarr use):
@@ -434,7 +434,7 @@ dependencies: [] # default-deny: reaches only DNS; arr reach it n
# for weeks and neither has any CNP naming the NFS server or port 2049
# (grep apps/wave-1/sonarr.yaml: none). The SAME fact is what keeps the VPN
# egress gateway off this traffic (its selector is a podSelector), and
# 192.168.2.102 is inside the 192.168.0.0/16 excludedCIDR besides — see
# 192.168.2.30 is inside the 192.168.0.0/16 excludedCIDR besides — see
# platform/vpn-egress/egress-steering.yaml, "BULK NFS".
ingressRoutes:
- host: qbittorrent.${BASE_DOMAIN}
+362 -22
View File
@@ -156,11 +156,17 @@ OAUTH2_COOKIE_REFRESH = "2m30s"
# ready endpoints. The flag is confirmed present in the PINNED v7.8.1 binary (`--help`),
# which matters because the shared proxy is on v7.15.3 and could not have vouched for it.
#
# THIS IS THE PREREQUISITE ONLY, AND IT IS NOT YET SCRAPED. A container port is not a
# Service port: these sidecars' Services expose the app port and :4180, and each namespace's
# default-deny baseline has `ingress: []`, so Prometheus can neither resolve nor reach this
# port until a Service port (or PodMonitor), a monitoring-ingress allow and a ServiceMonitor
# are added. Do not read this flag as "metrics are working".
# THE SCRAPE WORKS AS OF 2026-10-05 — but it took THREE independent pieces, and this flag is
# only the first. A container port is not a Service port, and each namespace's default-deny
# baseline denies all ingress, so the flag alone bought nothing for 63.7h:
# 1. this flag + a named `metrics` container port (PR #28)
# 2. a monitor that targets POD ports, not Service ports — platform/oauth2-proxy/podmonitor.yaml
# is a PodMonitor for exactly that reason (no Service exposes 44180)
# 3. an ingress allowance from ns monitoring (PR #49, r_monitoring_ingress_policy below)
# Verified on prod 2026-10-05: all 6 targets up == 1, scraping in 1-6ms.
# STILL do not read this flag alone as "metrics are working" — 1 without 3 is precisely the state
# that produced 5 x TargetDown for 63.7h. If you add a sidecar metrics port anywhere else, check
# that r_monitoring_ingress_policy covers it.
OAUTH2_PROXY_METRICS_PORT = 44180
# --- Hardware capability: `hardware.gpu: intel-quicksync` ------------------------------
@@ -272,7 +278,15 @@ def apply_defaults(sd: dict) -> dict:
# object that actually runs on the cluster is not the one this SD renders (keycloak: the
# Keycloak operator runs a StatefulSet, so a Deployment-shaped rule would `absent()` forever).
lw = dict(obs.get("livenessWorkload") or {})
lw.setdefault("kind", "VirtualMachineInstance" if s["kind"] == "vm" else "Deployment")
# The default must track what is ACTUALLY rendered, or the `up` SLI silently dies: a
# Deployment-shaped rule against a StatefulSet `absent()`s forever, which is an alert that can
# never fire — the exact failure mode the keycloak override was added for. Deriving it from
# `availability.replicas` means bumping the replica count cannot leave a stale rule behind.
lw.setdefault(
"kind",
"VirtualMachineInstance" if s["kind"] == "vm"
else ("StatefulSet" if _is_statefulset(s) else "Deployment"),
)
lw.setdefault("name", s["name"])
obs["livenessWorkload"] = lw
s["observability"] = obs
@@ -475,6 +489,37 @@ def r_bulk_pvs(s: dict) -> list:
return out
def _replicas(s: dict) -> int:
"""Declared replica count (schema 1.10.0 `availability.replicas`). Default 1."""
return int((s.get("availability") or {}).get("replicas", 1) or 1)
def _is_statefulset(s: dict) -> bool:
"""True when this container workload must render a StatefulSet rather than a Deployment.
THE DECIDING CONSTRAINT IS THE VOLUME, not a preference. A longhorn storage entry renders
ReadWriteOnce (r_pvcs), and one RWO PVC cannot be attached by pods on two different nodes --
which is exactly what `availability.replicas > 1` plus the node anti-affinity below asks for.
A 2-replica Deployment over a shared RWO claim does not degrade, it simply never schedules the
second pod. A StatefulSet's volumeClaimTemplates give each replica its OWN claim, which is the
only shape that satisfies both at once.
A replicas-1 service keeps rendering a Deployment so every pre-existing golden is byte-identical.
"""
return s["kind"] == "container" and _replicas(s) > 1
def _sts_claim_volumes(s: dict) -> list:
"""Storage entries that become per-replica volumeClaimTemplates on a StatefulSet.
Only the dynamically-provisioned (longhorn) entries. A `bulk` entry is a STATIC, pre-bound NFS
PV over data that already exists outside the cluster and is shared read-only by every consumer
(r_bulk_pvs) -- per-replica copies of it are neither possible nor wanted, so it stays a
standalone PVC and an ordinary pod volume.
"""
return [v for v in s["storage"] if v.get("class", "longhorn") != "bulk"]
def r_pvcs(s: dict) -> list:
"""One PVC per storage entry (R-STATE-01/02/04).
@@ -482,8 +527,15 @@ def r_pvcs(s: dict) -> list:
bulk -> the STATIC external NFS PV rendered by r_bulk_pvs, pre-bound by volumeName.
"""
out = []
# On a StatefulSet the longhorn claims are NOT standalone objects — they are
# volumeClaimTemplates, so each replica gets its own (see _is_statefulset). Emitting both would
# leave an orphan PVC that nothing mounts and that `prune` would later delete out from under
# nobody. `bulk` is unaffected and still rendered here.
sts = _is_statefulset(s)
for vol in s["storage"]:
cls = vol.get("class", "longhorn")
if sts and cls != "bulk":
continue
if cls == "bulk":
# Mirror image of the PV: the same explicitly-empty class (so nothing dynamically
# provisions), the same access mode, and volumeName completing the two-sided binding.
@@ -564,6 +616,12 @@ def r_deployment(s: dict) -> dict:
if vol.get("readOnly"):
mount["readOnly"] = True
volume_mounts.append(mount)
# On a StatefulSet a longhorn volume is supplied by its volumeClaimTemplate, whose
# metadata.name IS the pod volume name. Adding it to pod.volumes as well is a conflict
# (duplicate volume name), so it is skipped here and emitted below. The MOUNT is unchanged —
# the container cannot tell the difference, which is what keeps this transparent to the app.
if _is_statefulset(s) and vol.get("class", "longhorn") != "bulk":
continue
volumes.append(
{
"name": vol["name"],
@@ -661,20 +719,80 @@ def r_deployment(s: dict) -> dict:
if ann:
tmpl_meta["annotations"] = ann
spec = {"replicas": 1}
# An app with persistent storage mounts a ReadWriteOnce Longhorn PVC. The default
# RollingUpdate strategy tries to start the NEW pod before terminating the old one, but
# the old pod still holds the RWO volume -> the new pod is stuck ContainerCreating and
# the rollout deadlocks (single-replica app can never hand the volume over). Recreate
# terminates the old pod first, freeing the PVC for the new one (R-STATE-01/02).
if s["storage"]:
sts = _is_statefulset(s)
# NODE ANTI-AFFINITY, and it is REQUIRED rather than preferred. `availability.replicas > 1`
# exists to survive the loss of one node; `preferred` would let both replicas land on the same
# node and quietly deliver none of that, with every object reporting healthy. The cost is real
# and is accepted: with N replicas the workload needs N schedulable nodes, so on a 3-node
# cluster losing TWO nodes leaves a replica Pending and — because `apps-wave-0` is `wait: true`
# with `apps-wave-1` dependsOn it — STALLS THE APP TIER. That coincides with having already lost
# etcd quorum on a 3-node control plane, i.e. the cluster is not reconciling anything at that
# point anyway, so the stall is a symptom rather than a new failure.
if sts:
pod_spec["affinity"] = {
"podAntiAffinity": {
"requiredDuringSchedulingIgnoredDuringExecution": [
{
"labelSelector": {
"matchLabels": {"app.kubernetes.io/name": s["name"]}
},
"topologyKey": "kubernetes.io/hostname",
}
]
}
}
spec = {"replicas": _replicas(s)}
if sts:
# serviceName is a required StatefulSet field. It points at the service rendered by
# r_service; that Service is a normal ClusterIP rather than headless, so per-pod DNS
# (<pod>.<svc>) does NOT resolve — and nothing here needs it. These replicas are
# interchangeable resolvers behind one VIP, not peers that address each other.
spec["serviceName"] = s["name"]
# Parallel, not the OrderedReady default. OrderedReady starts replica N+1 only after N is
# Ready, so a cold start costs the sum of every replica's first-boot work instead of the
# max — and `apps-wave-0` has `timeout: 5m`. There is no ordering requirement between
# replicas to protect (no leader, no migration, no shared volume), so serialising buys
# nothing and risks the wave timing out on a rebuild.
spec["podManagementPolicy"] = "Parallel"
elif s["storage"]:
# An app with persistent storage mounts a ReadWriteOnce Longhorn PVC. The default
# RollingUpdate strategy tries to start the NEW pod before terminating the old one, but
# the old pod still holds the RWO volume -> the new pod is stuck ContainerCreating and
# the rollout deadlocks (single-replica app can never hand the volume over). Recreate
# terminates the old pod first, freeing the PVC for the new one (R-STATE-01/02).
#
# A StatefulSet needs none of this and cannot express it: each replica owns its own claim,
# so a rolling update hands nothing over, and `strategy` is not a StatefulSet field at all.
spec["strategy"] = {"type": "Recreate"}
spec["selector"] = {"matchLabels": {"app.kubernetes.io/name": s["name"]}}
spec["template"] = {"metadata": tmpl_meta, "spec": pod_spec}
if sts:
# Per-replica claims. metadata.name MUST equal the pod volume name the container mounts
# (see the volumes loop above); the resulting PVCs are <name>-<sts>-<ordinal>, e.g.
# config-pihole-0. Same tier and access mode a standalone longhorn PVC gets from r_pvcs —
# this changes WHO owns the claim, never what it is.
tmpls = []
for vol in _sts_claim_volumes(s):
vspec = {"accessModes": ["ReadWriteOnce"], "storageClassName": "longhorn"}
if vol.get("size"):
vspec["resources"] = {"requests": {"storage": vol["size"]}}
tmpls.append(
{
"metadata": {
"name": vol["name"],
"labels": {"app.kubernetes.io/name": s["name"]},
},
"spec": vspec,
}
)
if tmpls:
spec["volumeClaimTemplates"] = tmpls
return {
"apiVersion": "apps/v1",
"kind": "Deployment",
"kind": "StatefulSet" if sts else "Deployment",
"metadata": {
"name": s["name"],
"namespace": s["name"],
@@ -684,6 +802,35 @@ def r_deployment(s: dict) -> dict:
}
def r_pdb(s: dict):
"""PodDisruptionBudget for a multi-replica workload (availability.replicas > 1).
minAvailable 1, not `maxUnavailable: 1`. The budget's job here is to stop a VOLUNTARY
disruption — a node drain for maintenance, a cluster upgrade — from taking the last replica
with it; `minAvailable: 1` says that whatever else happens, one must keep serving. It does
NOT protect against involuntary disruption (a node dying), which is what the anti-affinity
and the replica count are for.
Rendered only when replicas > 1: a PDB over a single-replica workload is actively harmful, as
`minAvailable: 1` would then block every drain of its node forever.
"""
if not _is_statefulset(s):
return None
return {
"apiVersion": "policy/v1",
"kind": "PodDisruptionBudget",
"metadata": {
"name": s["name"],
"namespace": s["name"],
"labels": {"app.kubernetes.io/name": s["name"]},
},
"spec": {
"minAvailable": 1,
"selector": {"matchLabels": {"app.kubernetes.io/name": s["name"]}},
},
}
def r_service(s: dict):
ports = _service_ports(s)
# A declared metrics endpoint becomes a NAMED Service port, because that name is the only
@@ -1221,8 +1368,9 @@ def _oauth2_sidecar_container(s: dict) -> dict:
f"--cookie-refresh={OAUTH2_COOKIE_REFRESH}",
"--pass-access-token=true",
"--set-xauthrequest=true",
# Start the /metrics listener. Prerequisite only — not yet reachable by Prometheus;
# see OAUTH2_PROXY_METRICS_PORT above for exactly what is still missing.
# Start the /metrics listener. Scraped as of 2026-10-05, but only because
# r_monitoring_ingress_policy also opens this port to ns monitoring — the flag alone was
# inert for 63.7h. See OAUTH2_PROXY_METRICS_PORT above for the three pieces required.
f"--metrics-address=0.0.0.0:{OAUTH2_PROXY_METRICS_PORT}",
]
secret = f"{s['name']}-oauth2-proxy"
@@ -1400,12 +1548,54 @@ def r_monitoring_ingress_policy(s: dict):
trap Longhorn's own NetworkPolicies set (platform/longhorn/networkpolicy-metrics.yaml exists
for exactly this reason), and it is a THIRD independent way for a metrics SLI to be inert.
Rendered only alongside a declared metricsEndpoint, and it opens ONLY that port to ONLY the
monitoring namespace: an allow for a port nothing serves would be a standing hole for no
Rendered only alongside a port something actually serves, and it opens ONLY that port to ONLY
the monitoring namespace: an allow for a port nothing serves would be a standing hole for no
benefit.
TWO INDEPENDENT SOURCES OF A SERVED METRICS PORT, and this used to cover only the first:
1. `observability.metricsEndpoint` — the APP's own exporter. NOTE, measured 2026-10-04: no
ServiceDefinition in this catalog declares one, so before the sidecar clause below this
function had NEVER emitted a single object on any branch. It is correct but, so far,
entirely latent — do not read its presence as evidence that scrape ingress is solved.
2. THE forward-auth GATE SIDECAR's own `/metrics` on 44180 (added 2026-10-04). Every
`_needs_oauth2_sidecar` app gets `--metrics-address=0.0.0.0:{OAUTH2_PROXY_METRICS_PORT}`
and a named `metrics` container port from `_oauth2_sidecar_container`, so the port is
served whenever the sidecar exists — unconditionally, which is what makes it safe to
open without a per-app declaration.
WHY CLAUSE 2 KEYS ON `_needs_oauth2_sidecar` AND NOT ON `observability.metrics`: it must match
the condition the SCRAPE keys on, exactly. platform/oauth2-proxy/podmonitor.yaml selects pods
by the `homelab.keithjackson.dev/auth-mode: forward-auth` POD LABEL and nothing else, so a
target exists iff the sidecar exists. Keying the allowance on `observability.metrics` instead
would let `metrics: false` produce a discovered-but-blocked target — the same "two halves
authored apart" failure this function exists to prevent, just moved one field over.
THIS CLAUSE IS A BUG FIX, and the bug was live for 63.7h. Measured on prod 2026-10-04: all 6
sidecar targets across jackett/radarr/sonarr/qbittorrent/pihole read `health=down`,
`lastError: context deadline exceeded`, `lastScrapeDuration` exactly 10.0s — the scrapeTimeout,
i.e. packets DROPPED, not refused. Each app namespace ships a `default-deny` NetworkPolicy
with `policyTypes: [Ingress, Egress]` and NO `ingress` key at all (deny-all-ingress), and the
only ingress allowance is `<app>-allow-gateway-ingress`: `fromEntities: [ingress]` -> 4180.
Prometheus matched no clause. 5 x `TargetDown` + 6 x `OAuth2ProxyGateUnobserved` had been
re-notifying at ~22 emails/day since the PodMonitor landed on 2026-10-02.
WHY THE POLICY BELONGS HERE AND NOT IN platform/oauth2-proxy: podmonitor.yaml's header records
the objection — a policy in that tier would name app namespaces created by the SIBLING
apps-wave-0/1 tiers (measured Flux graph: `oauth2-proxy` and `apps-wave-0` both
`dependsOn=[platform-config]`, no ordering between them), so it would apply on a running
cluster and fail on a cold bootstrap. Rendered here it ships in the same tier that creates the
namespace, which dissolves that ordering problem entirely.
"""
ep = s["observability"].get("metricsEndpoint")
if not ep or not s["observability"]["metrics"]:
obs = s["observability"]
ep = obs.get("metricsEndpoint")
ports: list[str] = []
if ep and obs["metrics"]:
ports.append(str(ep["port"]))
if _needs_oauth2_sidecar(s):
ports.append(str(OAUTH2_PROXY_METRICS_PORT))
if not ports:
return None
return {
"apiVersion": "cilium.io/v2",
@@ -1423,7 +1613,7 @@ def r_monitoring_ingress_policy(s: dict):
{"matchLabels": {"k8s:io.kubernetes.pod.namespace": MONITORING_NS}}
],
"toPorts": [
{"ports": [{"port": str(ep["port"]), "protocol": "TCP"}]}
{"ports": [{"port": p, "protocol": "TCP"} for p in ports]}
],
}
],
@@ -1817,7 +2007,13 @@ def render(sd: dict, image_automation: bool = True, inbound: list | None = None)
)
for pvc in r_pvcs(s):
docs.append((f"PVC {pvc['metadata']['name']} (R-STATE)", pvc))
docs.append(("Deployment (R-PLAT-02)", r_deployment(s)))
wl = r_deployment(s)
docs.append((f"{wl['kind']} (R-PLAT-02)", wl))
pdb = r_pdb(s)
if pdb:
docs.append(
("PodDisruptionBudget — keep one replica through a drain (availability.replicas)", pdb)
)
svc = r_service(s)
if svc:
docs.append(("Service", svc))
@@ -2002,6 +2198,24 @@ EXTRA_UNITS: dict = {
"pihole-dns.yaml",
],
},
# Plex's remote-access exposure: the raw tcp/32400 LoadBalancer Service on a pinned VIP, plus the
# CiliumNetworkPolicy that admits off-cluster clients to it (apps/wave-0/plex-remote.yaml).
# `above: False` co-locates it in plex's OWN wave — these are the plex pod's own Service and its
# own policy, applied in the same wave as the Deployment they select, exactly as the rendered
# Service and CNPs in plex.yaml are. Nothing in a higher wave gates on it.
#
# It is a non-catalog unit for the same reason pihole-dns is: the ServiceDefinition schema cannot
# express a LoadBalancer Service or a pinned lbipam VIP (additionalProperties is false, and
# `ingressRoutes` only renders HTTPRoutes on the L7 Gateway, which cannot carry Plex's raw port).
# Plex's own settings stay in the catalog as env on catalog/plex.yaml; the only thing living
# outside it is the exposure the schema has no word for.
"plex-remote": {
"anchor": "plex",
"above": False,
"files": [
"plex-remote.yaml",
],
},
}
@@ -2248,6 +2462,132 @@ def _selftest() -> int:
check("Namespace" in kinds, "container: missing Namespace")
check("NetworkPolicy" in kinds, "container: missing default-deny NetworkPolicy")
check("Deployment" in kinds, "container: missing Deployment")
check(
"PodDisruptionBudget" not in kinds,
"replicas-1 container must render NO PodDisruptionBudget (minAvailable 1 over a single "
"replica blocks every drain of its node forever)",
)
# 1b) availability.replicas (schema 1.10.0). The DEFAULT path must be untouched, and the >1
# path must change workload kind, claim ownership, spreading, budget AND the SLI metric
# together — each of these has a silent-failure mode if it is the one that gets forgotten.
base_av = {
"name": "av",
"source": {"image": "nginx:1"},
"storage": [{"name": "config", "size": "1Gi"}],
"observability": {"metrics": True, "slis": ["up"]},
}
one = render({**base_av, "availability": {"replicas": 1}})
one_kinds = [d[1]["kind"] for d in one]
check(
"Deployment" in one_kinds and "StatefulSet" not in one_kinds,
"availability.replicas=1 must still render a Deployment (back-compat)",
)
check(
"PersistentVolumeClaim" in one_kinds,
"availability.replicas=1 must still render a standalone PVC",
)
check(
"PodDisruptionBudget" not in one_kinds,
"availability.replicas=1 must render no PodDisruptionBudget",
)
many = render({**base_av, "availability": {"replicas": 2}})
many_kinds = [d[1]["kind"] for d in many]
check(
"StatefulSet" in many_kinds and "Deployment" not in many_kinds,
"availability.replicas>1 must render a StatefulSet, not a Deployment (a shared RWO claim "
"cannot be attached on two nodes, so a multi-replica Deployment never schedules)",
)
check(
"PersistentVolumeClaim" not in many_kinds,
"availability.replicas>1 must NOT also render a standalone longhorn PVC — it would be an "
"orphan that nothing mounts",
)
sts = next(d[1] for d in many if d[1]["kind"] == "StatefulSet")
check(sts["spec"].get("replicas") == 2, "StatefulSet must carry the declared replica count")
check(
"strategy" not in sts["spec"],
"StatefulSet must not carry `strategy` (not a StatefulSet field; Recreate is a "
"Deployment-only workaround for handing over one RWO volume)",
)
check(
sts["spec"].get("podManagementPolicy") == "Parallel",
"StatefulSet must set podManagementPolicy=Parallel — OrderedReady serialises first-boot "
"work across replicas and apps-wave-0 has a 5m timeout",
)
check(sts["spec"].get("serviceName") == "av", "StatefulSet must set serviceName")
tmpls = sts["spec"].get("volumeClaimTemplates") or []
check(
[t["metadata"]["name"] for t in tmpls] == ["config"],
"StatefulSet volumeClaimTemplate name must equal the pod volume name the container mounts, "
"or the pod gets a duplicate/unresolvable volume",
)
check(
tmpls and tmpls[0]["spec"]["accessModes"] == ["ReadWriteOnce"]
and tmpls[0]["spec"]["storageClassName"] == "longhorn",
"StatefulSet claim template must keep the same tier/access mode as the standalone PVC",
)
sts_vols = {v["name"] for v in sts["spec"]["template"]["spec"].get("volumes", [])}
check(
"config" not in sts_vols,
"a claim-template volume must NOT also appear in pod.volumes (duplicate volume name)",
)
mounts = sts["spec"]["template"]["spec"]["containers"][0].get("volumeMounts") or []
check(
any(m["name"] == "config" for m in mounts),
"the container must still mount the volume by name on a StatefulSet (transparent to the app)",
)
aff = (sts["spec"]["template"]["spec"].get("affinity") or {}).get("podAntiAffinity") or {}
req = aff.get("requiredDuringSchedulingIgnoredDuringExecution") or []
check(
req and req[0].get("topologyKey") == "kubernetes.io/hostname",
"availability.replicas>1 must render REQUIRED per-node anti-affinity — `preferred` can put "
"every replica on one node and deliver none of the intended node-failure tolerance",
)
pdbs = [d[1] for d in many if d[1]["kind"] == "PodDisruptionBudget"]
check(len(pdbs) == 1, "availability.replicas>1 must render exactly one PodDisruptionBudget")
check(
pdbs and pdbs[0]["spec"].get("minAvailable") == 1,
"PodDisruptionBudget must be minAvailable=1 (keep one replica serving through a drain)",
)
pr_many = next((d[1] for d in many if d[1]["kind"] == "PrometheusRule"), None)
check(
pr_many is not None
and "kube_statefulset_status_replicas_ready"
in pr_many["spec"]["groups"][0]["rules"][0]["expr"],
"the up SLI must follow the rendered workload kind — a Deployment-shaped rule against a "
"StatefulSet absent()s forever and can never fire",
)
# A bulk volume is shared external NFS: it must stay a standalone PVC even on a StatefulSet.
mixed = render(
{
**base_av,
"availability": {"replicas": 2},
"storage": [
{"name": "config", "size": "1Gi"},
{"name": "media", "class": "bulk", "export": "/mnt/x", "size": "1Ti"},
],
}
)
m_sts = next(d[1] for d in mixed if d[1]["kind"] == "StatefulSet")
check(
[t["metadata"]["name"] for t in m_sts["spec"]["volumeClaimTemplates"]] == ["config"],
"only longhorn volumes become claim templates; a bulk share must not be per-replica",
)
check(
any(
d[1]["kind"] == "PersistentVolumeClaim"
and d[1]["metadata"]["name"] == "av-media"
for d in mixed
),
"a bulk PVC must still be rendered standalone on a StatefulSet",
)
check(
"media" in {v["name"] for v in m_sts["spec"]["template"]["spec"].get("volumes", [])},
"a bulk volume must still appear in pod.volumes on a StatefulSet",
)
ns = next(d[1] for d in docs if d[1]["kind"] == "Namespace")
check(
+31
View File
@@ -27,3 +27,34 @@ fi
yamllint -c "${CI_DIR}/yamllint.yaml" -f "${YAMLLINT_FORMAT:-standard}" "${files[@]}"
ok "yaml/lint passed (${#files[@]} files)"
# A workflow's `configurationFile:` must name a file that exists. Renovate's did not after #79
# renamed renovate.json -> renovate.json5, and every scheduled run failed with ENOENT for 11 days
# while the gate stayed green. Valid YAML, so yamllint cannot see it.
missing=0
while IFS=: read -r wf _ value; do
value="${value#*configurationFile:}"
value="$(echo "$value" | sed -E 's/#.*//; s/^[[:space:]"'\'']+//; s/[[:space:]"'\'']+$//')"
if [ -n "$value" ] && [ ! -e "$value" ]; then
err "${wf}: configurationFile '${value}' does not exist in the repo"
missing=1
fi
done < <(grep -nE '^[[:space:]]*configurationFile:' .gitea/workflows/*.y*ml 2>/dev/null || true)
[ "$missing" -eq 0 ] || exit 1
ok "workflow configurationFile references resolve"
# A workflow must not use an action that needs a Docker daemon: jobs on this runner get NONE, by
# decision (decisions/2026-10-29-image-pipeline.md; act_runner maps docker_host to `-`). Such an
# action is valid YAML and passes every other stage, then dies at runtime with
# "failed to connect to the docker API at unix:///var/run/docker.sock". renovatebot/github-action
# did exactly that on every Renovate run until 2026-10-30 (run 343). Run the tool's image as the
# job `container:` instead (see .gitea/workflows/renovate.yaml). Container (`docker://`) actions
# and Docker's own daemon-bound actions are rejected for the same reason. Comments are ignored.
daemon_uses='uses:[[:space:]]*["'\'']?(docker://|renovatebot/github-action|docker/(build-push|setup-buildx|setup-qemu|login)-action)'
bad=0
while IFS= read -r hit; do
err "${hit%%:*}: needs a Docker daemon, which jobs here do not get: $(echo "${hit#*:*:}" | sed -E 's/^[[:space:]]+//')"
bad=1
done < <(grep -HnE "^[^#]*${daemon_uses}" .gitea/workflows/*.y*ml 2>/dev/null || true)
[ "$bad" -eq 0 ] || exit 1
ok "no workflow uses a Docker-daemon-bound action"
+490
View File
@@ -0,0 +1,490 @@
#!/usr/bin/env python3
# =============================================================================
# ci/render-keycloak-passkey-policy.py
#
# Render platform/keycloak/passkey-desired-state.yaml FROM
# platform/keycloak/keycloak-realm-import.yaml.
#
# WHY THIS EXISTS
# ---------------
# The Keycloak realm import is a ONE-SHOT that fails OPEN: once it rests at
# Done=True / Started=False it never re-runs. Measured on prod 2026-10-18, hours
# after the passkey declaration merged:
#
# kubectl -n keycloak get keycloakrealmimport homelab -o jsonpath=...status
# Done=True Started=False HasErrors=False
#
# So the WebAuthn passwordless policy and the restructured `browser-mfa` flow that
# keycloak-realm-import.yaml declares are INERT. They are in git, Flux applied
# them, and they reach the realm never. platform/keycloak/passkey-reconciler.yaml
# is the level-triggered loop that closes that; this renderer supplies the DESIRED
# STATE it converges towards.
#
# THE ONE VALUE THAT IS NOT RENDERED: `bind-browser-flow`, git's switch for whether the
# reconciler may BIND its verified candidate browser flow (one atomic PUT of the
# realm's browserFlow). It is an operator DECISION -- "I have tested the candidate
# flow in a browser; make it the login path" -- not a fact derivable from the realm
# import, so it cannot be generated. It is instead CARRIED THROUGH from the committed
# file: --write preserves it, --check accepts any value of it that is exactly the
# string "true" or "false" and rejects everything else (an unquoted YAML true is a
# bool, which a ConfigMap rejects at apply time -- failing the whole platform-config
# Kustomization -- so it is refused HERE, at merge time). An absent file or key
# renders as "false". Going live is therefore a one-line PR flipping that line.
#
# THE CONSTRAINT THAT SHAPES IT: the reconciler pod runs with
# automountServiceAccountToken: false, exactly like its client-secret sibling. It
# has NO Kubernetes API access at all, by design (R-SEC-02) — so it cannot read the
# KeycloakRealmImport CR to learn what the realm is supposed to look like. Its input
# must be MOUNTED. Hence a ConfigMap.
#
# THAT IS ALSO WHY THIS IS A RENDERER AND NOT A HAND-WRITTEN ConfigMap. A
# hand-authored copy of the policy would be a SECOND SOURCE OF TRUTH for the RP ID,
# the user-verification requirement and the whole flow tree — free to disagree with
# the realm import. "Two declarations that can disagree" is the same shape as the
# bug this whole effort is closing. So the ConfigMap is GENERATED from the realm
# import and the generation is GATED:
# conformance/tests/l0-static/keycloak-passkey-reconciler/check.sh runs this script
# with --check on every merge, and the merge fails if the committed file is not what
# this renderer produces. Same render==golden idiom as
# ci/render-keycloak-client-urls.py, catalog/render.py and ci/render-golden.sh.
#
# STRINGS ARE COPIED VERBATIM, NEVER RE-DERIVED. webAuthnPolicyPasswordlessRpId is
# written in the realm import as the Flux substitution token ${BASE_DOMAIN}, and it
# is carried through into the ConfigMap CHARACTER FOR CHARACTER. Both files are
# rendered by the SAME Flux Kustomization (./platform-config, whose
# postBuild.substituteFrom reads cluster-vars), so both are substituted in the same
# pass with the same value and cannot disagree about what the base domain is. This
# renderer never parses, splits or reconstructs a hostname and never reads
# cluster-vars — there is no second place the domain is decided.
#
# THE ONE THING THIS RENDERER DERIVES RATHER THAN COPIES
# -----------------------------------------------------
# The enrolment required action, `webauthn-register-passwordless`. It is
# deliberately NOT declared in the realm import, and the import's own header
# explains at length why declaring it there would be actively DANGEROUS: Keycloak
# 26.0.6 treats `requiredActions` in a realm representation as REPLACE, not merge,
# so declaring one action imports exactly that action plus delete_account and skips
# DefaultRequiredActions.addActions entirely — deleting CONFIGURE_TOTP,
# UPDATE_PASSWORD, VERIFY_EMAIL and seven more. Losing CONFIGURE_TOTP is a hard
# lock-out of every platform-admin, because auth-otp-form in the browser flow still
# demands a TOTP they could then never enrol.
#
# So the required action cannot be copied from the import, because it is correctly
# absent from it. It is instead DERIVED, as a consequence of what the import DOES
# declare:
#
# IF the declared browser flow contains a `webauthn-authenticator-passwordless`
# execution, THEN passkey logins are offered, THEREFORE the enrolment action must
# be registered and enabled — and NOT a defaultAction, because the import's whole
# stated posture is "additive and optional" and a defaultAction forces enrolment
# on every user at next login.
#
# This is a derivation, not a second declaration: there is no value here that a
# human could edit into disagreement with the import. If the import stops declaring
# the passkey execution, this renderer stops emitting the required action (and
# fails, because then the whole desired state is empty of passkey intent).
#
# WHAT IS DELIBERATELY NOT EXPORTED
# * the TWO-FACTOR webAuthnPolicy* family. Nothing in this realm uses the
# `webauthn-authenticator` two-factor authenticator; the passwordless
# authenticator reads getWebAuthnPolicyPasswordless() only, so a policy written
# into the two-factor family is a silent no-op. Exporting it would hand the
# reconciler a write surface with no purpose.
# * `clients`, `users`, `groups`, `roles`. Client secrets and client URLs are the
# SIBLING reconciler's surface (platform/keycloak/client-secret-reconciler.yaml),
# and users/groups/roles are nobody's — prod's real user and the media-users /
# platform-admins / viewers groups must survive every run of everything.
# * execution `priority`. It is consumed here to ORDER the exported executions
# (Keycloak returns them in priority order), but the numbers themselves are not
# exported: the reconciler compares the resulting SEQUENCE, which is what
# actually determines behaviour. Exporting the integers would make a
# priority renumbering that changes no ordering read as drift.
#
# USAGE
# python3 ci/render-keycloak-passkey-policy.py # print the rendered file
# python3 ci/render-keycloak-passkey-policy.py --write # write it (regenerate)
# python3 ci/render-keycloak-passkey-policy.py --check # exit 1 if it has drifted
# =============================================================================
from __future__ import annotations
import argparse
import difflib
import json
import sys
from pathlib import Path
try:
import yaml
except ImportError: # pragma: no cover
print("FATAL: PyYAML is required (same dependency as catalog/render.py)",
file=sys.stderr)
raise SystemExit(1)
ROOT = Path(__file__).resolve().parent.parent
IMPORT_FILE = "platform/keycloak/keycloak-realm-import.yaml"
OUT_FILE = "platform/keycloak/passkey-desired-state.yaml"
DATA_KEY = "passkey-desired-state.json"
CONFIGMAP_NAME = "keycloak-passkey-desired-state"
NAMESPACE = "keycloak"
# The realm keys this renderer exports, and therefore the ONLY realm keys the
# reconciler may write. Every one is a webAuthnPolicyPasswordless* field. Kept in
# lockstep with POLICY_FIELDS in the reconciler script; the L0 check asserts the two
# tuples are identical, so they cannot drift apart silently.
POLICY_STR_FIELDS = (
"webAuthnPolicyPasswordlessRpId",
"webAuthnPolicyPasswordlessRpEntityName",
"webAuthnPolicyPasswordlessRequireResidentKey",
"webAuthnPolicyPasswordlessUserVerificationRequirement",
"webAuthnPolicyPasswordlessAuthenticatorAttachment",
"webAuthnPolicyPasswordlessAttestationConveyancePreference",
)
POLICY_LIST_FIELDS = (
"webAuthnPolicyPasswordlessSignatureAlgorithms",
"webAuthnPolicyPasswordlessAcceptableAaguids",
)
POLICY_INT_FIELDS = ("webAuthnPolicyPasswordlessCreateTimeout",)
POLICY_BOOL_FIELDS = ("webAuthnPolicyPasswordlessAvoidSameAuthenticatorRegister",)
POLICY_FIELDS = (POLICY_STR_FIELDS + POLICY_LIST_FIELDS + POLICY_INT_FIELDS
+ POLICY_BOOL_FIELDS)
# The field Keycloak 26.0.6 gates the WHOLE passwordless policy on
# (DefaultExportImportManager.updateRealm: the policy is applied only when
# RpEntityName is non-null and non-empty). A desired state without it would produce
# an accepted PUT that changes nothing, so refuse to render one.
RP_ENTITY_NAME = "webAuthnPolicyPasswordlessRpEntityName"
# The execution whose presence is what makes passkey enrolment necessary.
PASSKEY_AUTHENTICATOR = "webauthn-authenticator-passwordless"
ENROL_ACTION = "webauthn-register-passwordless"
BIND_KEY = "bind-browser-flow"
BIND_VALUES = ("true", "false")
def committed_bind(root: Path) -> str:
"""The operator's bind-browser-flow value from the COMMITTED file, or "false".
This is the only input read from the output file, and it is validated, not trusted:
anything other than the exact strings "true" / "false" is a hard failure."""
target = root / OUT_FILE
if not target.is_file():
return "false"
docs = [d for d in yaml.safe_load_all(target.read_text(encoding="utf-8")) if d]
cm = next((d for d in docs if d.get("kind") == "ConfigMap"), None) or {}
data = cm.get("data") or {}
if BIND_KEY not in data:
return "false"
v = data[BIND_KEY]
if not isinstance(v, str) or v not in BIND_VALUES:
raise SystemExit(
"FATAL: %s data.%s is %r. It must be exactly the QUOTED string \"true\" or "
"\"false\": an unquoted true/false is a YAML boolean, which a ConfigMap rejects "
"at apply time and which would fail the whole platform-config Kustomization"
% (OUT_FILE, BIND_KEY, v))
return v
def render(root: Path) -> str:
"""Return the full text of passkey-desired-state.yaml as it should be committed."""
docs = list(yaml.safe_load_all((root / IMPORT_FILE).read_text()))
imp = next((d for d in docs if d and d.get("kind") == "KeycloakRealmImport"), None)
if imp is None:
raise SystemExit("FATAL: no KeycloakRealmImport document in %s" % IMPORT_FILE)
realm = (imp.get("spec") or {}).get("realm") or {}
realm_name = realm.get("realm")
if not isinstance(realm_name, str) or not realm_name:
raise SystemExit("FATAL: %s declares no spec.realm.realm name" % IMPORT_FILE)
# ---- the passwordless policy, copied VERBATIM ----------------------------------
policy: dict[str, object] = {}
for f in POLICY_STR_FIELDS:
if f not in realm:
continue # not declared => NOT MANAGED
v = realm[f]
# A bare ${BASE_DOMAIN} parses as a plain string; an int or bool here would be
# a YAML quoting mistake that must not be silently stringified.
if not isinstance(v, str):
raise SystemExit("FATAL: %s realm field %s is not a string (got %r) — "
"quote it in the realm import" % (IMPORT_FILE, f, v))
policy[f] = v
for f in POLICY_LIST_FIELDS:
if f not in realm:
continue
v = realm[f]
if not isinstance(v, list) or not all(isinstance(x, str) for x in v):
raise SystemExit("FATAL: %s realm field %s is not a list of strings"
% (IMPORT_FILE, f))
policy[f] = list(v) # verbatim, order as authored
for f in POLICY_INT_FIELDS:
if f not in realm:
continue
v = realm[f]
if not isinstance(v, int) or isinstance(v, bool):
raise SystemExit("FATAL: %s realm field %s is not an integer"
% (IMPORT_FILE, f))
policy[f] = v
for f in POLICY_BOOL_FIELDS:
if f not in realm:
continue
v = realm[f]
if not isinstance(v, bool):
raise SystemExit("FATAL: %s realm field %s is not a boolean"
% (IMPORT_FILE, f))
policy[f] = v
if not policy:
# Fail closed. An empty policy would make the reconciler believe every field is
# unmanaged and silently stop reconciling — the realm import's own fail-open.
raise SystemExit("FATAL: %s declares no webAuthnPolicyPasswordless* field — "
"refusing to render an empty desired state" % IMPORT_FILE)
if not policy.get(RP_ENTITY_NAME):
raise SystemExit(
"FATAL: %s does not declare a non-empty %s. Keycloak 26.0.6 applies the "
"passwordless policy ONLY when that field is set, so every realm PUT would "
"be accepted and change nothing" % (IMPORT_FILE, RP_ENTITY_NAME))
# ---- the flow tree, flattened per flow and ORDERED BY PRIORITY -----------------
browser_flow = realm.get("browserFlow")
if not isinstance(browser_flow, str) or not browser_flow:
raise SystemExit("FATAL: %s declares no spec.realm.browserFlow — the flow could "
"be perfect and still not be the one anyone logs in through"
% IMPORT_FILE)
raw_flows = realm.get("authenticationFlows") or []
if not isinstance(raw_flows, list) or not raw_flows:
raise SystemExit("FATAL: %s declares no authenticationFlows" % IMPORT_FILE)
flows: dict[str, object] = {}
for fl in raw_flows:
alias = fl.get("alias")
if not isinstance(alias, str) or not alias:
raise SystemExit("FATAL: %s has an authentication flow with no alias"
% IMPORT_FILE)
if alias in flows:
raise SystemExit("FATAL: %s declares the flow %r twice"
% (IMPORT_FILE, alias))
execs = fl.get("authenticationExecutions") or []
if not isinstance(execs, list) or not execs:
raise SystemExit("FATAL: %s flow %r declares no authenticationExecutions"
% (IMPORT_FILE, alias))
ordered = []
for ex in sorted(execs, key=lambda e: (e.get("priority") or 0)):
is_flow = bool(ex.get("authenticatorFlow"))
name = ex.get("flowAlias") if is_flow else ex.get("authenticator")
if not isinstance(name, str) or not name:
raise SystemExit(
"FATAL: %s flow %r has an execution with neither an authenticator "
"nor a flowAlias" % (IMPORT_FILE, alias))
requirement = ex.get("requirement")
if not isinstance(requirement, str) or not requirement:
raise SystemExit("FATAL: %s flow %r execution %r declares no requirement"
% (IMPORT_FILE, alias, name))
entry: dict[str, object] = {
"kind": "flow" if is_flow else "authenticator",
"name": name,
"requirement": requirement,
}
cfg = ex.get("authenticatorConfig")
if cfg is not None:
if not isinstance(cfg, str) or not cfg:
raise SystemExit("FATAL: %s flow %r execution %r has a non-string "
"authenticatorConfig" % (IMPORT_FILE, alias, name))
entry["configAlias"] = cfg
ordered.append(entry)
flows[alias] = {"topLevel": bool(fl.get("topLevel")), "executions": ordered}
if browser_flow not in flows:
raise SystemExit("FATAL: %s binds browserFlow to %r but declares no such flow"
% (IMPORT_FILE, browser_flow))
# Every referenced subflow must be declared, or the reconciler's flattening walks
# into a hole and the audit silently covers less than it claims.
for alias, spec in flows.items():
for ex in spec["executions"]:
if ex["kind"] == "flow" and ex["name"] not in flows:
raise SystemExit("FATAL: %s flow %r references subflow %r, which is not "
"declared" % (IMPORT_FILE, alias, ex["name"]))
# ---- authenticator configs, copied verbatim ------------------------------------
configs: dict[str, dict] = {}
for cfg in realm.get("authenticatorConfig") or []:
alias = cfg.get("alias")
if not isinstance(alias, str) or not alias:
raise SystemExit("FATAL: %s has an authenticatorConfig with no alias"
% IMPORT_FILE)
body = cfg.get("config") or {}
if not isinstance(body, dict) or not body:
raise SystemExit("FATAL: %s authenticatorConfig %r has no config body"
% (IMPORT_FILE, alias))
# Values are stringified because Keycloak stores authenticator config values as
# strings. `negate: "false"` in the import and a stored "false" are the same
# declaration, and a YAML-unquoted `false` must not become a Python bool that
# then never matches.
configs[alias] = {k: str(v) for k, v in sorted(body.items())}
# Every configAlias a flow references must be defined, else the reconciler reports
# "git declares config X but defines no key/value for it" on every run forever.
for alias, spec in flows.items():
for ex in spec["executions"]:
ca = ex.get("configAlias")
if ca and ca not in configs:
raise SystemExit(
"FATAL: %s flow %r execution %r references authenticatorConfig %r, "
"which is not declared" % (IMPORT_FILE, alias, ex["name"], ca))
# ---- the enrolment required action, DERIVED (see the header) -------------------
offers_passkey = any(
ex["kind"] == "authenticator" and ex["name"] == PASSKEY_AUTHENTICATOR
for spec in flows.values() for ex in spec["executions"])
if not offers_passkey:
raise SystemExit(
"FATAL: %s declares a webAuthnPolicyPasswordless* policy but no %r execution "
"in any flow. The policy decides what a passkey must BE; without that "
"execution nothing ever OFFERS one, so the policy is unreachable "
"configuration and this desired state would be meaningless"
% (IMPORT_FILE, PASSKEY_AUTHENTICATOR))
want = {
"realm": realm_name,
"webAuthnPolicyPasswordless": policy,
# enabled: passkey enrolment must be possible, since the flow offers passkeys.
# defaultAction FALSE: enrolment stays OPT-IN. True would force every user to
# enrol a passkey at next login — the platform-wide lock-out the realm import's
# "additive and optional" posture exists to avoid. Derived, not copied; see the
# header for why the import cannot declare this itself.
"requiredAction": {"alias": ENROL_ACTION, "enabled": True,
"defaultAction": False},
"browserFlow": browser_flow,
"flows": flows,
"authenticatorConfig": configs,
}
body = json.dumps(want, indent=2, sort_keys=True, ensure_ascii=False)
indented = "\n".join((" " + ln) if ln else "" for ln in body.splitlines())
return (HEADER + BIND_BLOCK % (BIND_KEY, committed_bind(root))
+ " %s: |\n" % DATA_KEY + indented + "\n")
HEADER = """---
# =============================================================================
# GENERATED FILE — DO NOT EDIT BY HAND, except the one bind-browser-flow line below.
#
# source: platform/keycloak/keycloak-realm-import.yaml (spec.realm)
# regenerate: python3 ci/render-keycloak-passkey-policy.py --write
# gated by: conformance/tests/l0-static/keycloak-passkey-reconciler
# (runs this renderer with --check on every merge)
#
# WHAT THIS IS: the DESIRED STATE for the `homelab` realm's PASSKEY configuration —
# the WebAuthn passwordless policy, the enrolment required action, and the declared
# browser authentication flow tree. platform/keycloak/passkey-reconciler.yaml mounts
# it and (a) converges the policy and the required action onto it, (b) builds the
# declared flow tree BLUE/GREEN under a new alias and verifies it by readback, never
# writing the flow users are logging in through, and (c) BINDS that verified flow as
# the realm's browserFlow ONLY when `bind-browser-flow` below is "true".
#
# EVERYTHING HERE IS GENERATED EXCEPT ONE LINE: `bind-browser-flow`. That is an
# operator decision, carried through by the renderer from this committed file (see
# ci/render-keycloak-passkey-policy.py). It defaults to "false".
#
# WHY IT IS A SEPARATE OBJECT: the realm import is a ONE-SHOT that never re-runs
# once Done=True, so a realm-level field or a flow edited in git never reaches the
# realm. Measured on prod 2026-10-18, hours after the passkey declaration merged:
# Done=True / Started=False, with the whole passkey block inert. The reconciler is
# the level-triggered loop that closes that; this file is what it reconciles
# TOWARDS.
#
# WHY IT IS GENERATED AND NOT AUTHORED: a hand-written copy of the RP ID, the
# user-verification requirement and the flow tree would be a second source of truth,
# free to disagree with the realm import — the same "two declarations that can
# disagree" shape as the bug being closed. It is rendered from the import and the
# render is gated, so the two cannot drift.
#
# STRINGS ARE VERBATIM: webAuthnPolicyPasswordlessRpId is the ${BASE_DOMAIN}
# substitution token exactly as the realm import writes it. Both files are rendered
# by the SAME Flux Kustomization (./platform-config), so the token resolves to the
# same value in both and the domain is decided in exactly one place.
#
# `requiredAction` is the ONE entry that is DERIVED rather than copied: the realm
# import deliberately declares no `requiredActions` block, because Keycloak 26.0.6
# treats that as REPLACE and declaring one action would delete CONFIGURE_TOTP and
# nine more (a hard lock-out of every platform-admin). It is derived instead from
# the presence of a webauthn-authenticator-passwordless execution in the flow:
# passkeys are offered, therefore enrolment must be enabled — and defaultAction is
# false, so enrolment stays opt-in.
#
# A field NOT declared on the realm in the import is simply ABSENT here, and the
# reconciler leaves it alone. Absence means UNMANAGED, never "force to a default".
# =============================================================================
apiVersion: v1
kind: ConfigMap
metadata:
name: %s
namespace: %s
labels:
app.kubernetes.io/name: %s
app.kubernetes.io/part-of: keycloak
data:
""" % (CONFIGMAP_NAME, NAMESPACE, CONFIGMAP_NAME)
BIND_BLOCK = """ # ---------------------------------------------------------------------------
# THE BIND SWITCH -- the ONLY hand-edited line in this file. Exactly "true" or
# "false", QUOTED.
#
# "false" the reconciler builds and verifies the candidate browser flow and
# logs `WOULD BIND <alias>`, but NEVER changes the realm's browserFlow.
# Whatever the realm is bound to -- including a rollback -- is left alone.
# "true" it binds the verified candidate in one atomic PUT, and keeps the
# realm bound to it: a binding changed by hand is changed back.
#
# GO LIVE: test the candidate in a browser first (platform/keycloak/README.md,
# "Passkeys"), then a PR setting this to "true".
# ROLL BACK: a PR setting this to "false" FIRST (or the next run rebinds), then
# one write setting browserFlow back to the previous alias from the Job log.
# ---------------------------------------------------------------------------
%s: "%s"
"""
def main() -> int:
ap = argparse.ArgumentParser(description=__doc__)
g = ap.add_mutually_exclusive_group()
g.add_argument("--write", action="store_true", help="write %s" % OUT_FILE)
g.add_argument("--check", action="store_true",
help="exit 1 if the committed file has drifted from the source")
args = ap.parse_args()
want = render(ROOT)
target = ROOT / OUT_FILE
if args.write:
target.write_text(want, encoding="utf-8")
print("wrote %s" % OUT_FILE)
return 0
if args.check:
if not target.is_file():
print("CHECK FAIL: %s does not exist. Run: python3 "
"ci/render-keycloak-passkey-policy.py --write" % OUT_FILE,
file=sys.stderr)
return 1
have = target.read_text(encoding="utf-8")
if have == want:
print("passkey-desired-state.yaml is in sync with %s" % IMPORT_FILE)
return 0
print("CHECK FAIL: %s has DRIFTED from %s — the reconciler would converge the "
"realm on a passkey policy the realm import does not declare, and build "
"the login flow from a tree nobody authored.\n"
"Regenerate with: python3 ci/render-keycloak-passkey-policy.py --write\n"
% (OUT_FILE, IMPORT_FILE), file=sys.stderr)
for line in difflib.unified_diff(have.splitlines(True), want.splitlines(True),
fromfile="committed " + OUT_FILE,
tofile="rendered from " + IMPORT_FILE):
sys.stderr.write(line)
return 1
sys.stdout.write(want)
return 0
if __name__ == "__main__":
raise SystemExit(main())
+21
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@@ -0,0 +1,21 @@
---
# Flux Kustomization -> ./platform/buildkit — rootless BuildKit, the image builder CI uses
# (.gitea/workflows/images.yaml). Its own Kustomization so a stuck Certificate or a failing
# builder can never stall any other tier (Flux health-checks Certificates under wait:true).
apiVersion: kustomize.toolkit.fluxcd.io/v1
kind: Kustomization
metadata:
name: buildkit
namespace: flux-system
spec:
interval: 10m
retryInterval: 2m
timeout: 5m
prune: true
wait: true
dependsOn:
- name: platform # cert-manager CRDs (Issuer/Certificate) come from its HelmRelease
sourceRef:
kind: GitRepository
name: flux-system
path: ./platform/buildkit
+65 -16
View File
@@ -100,7 +100,9 @@ data:
# platform/keycloak/postgres-cluster.yaml but is rendered by platform-config, which is the ONLY
# tier that lists it), crafty (CRAFTY_L4_VIP), apps-wave-0 (nextcloud-db + semaphore-db:
# S3_BACKUP_ENDPOINT, CNPG_BACKUP_PATH; pihole + pihole-dns: PIHOLE_DNS_VIP, LAN_CIDR, plus
# GATEWAY_VIP/UNIFI_L4_VIP/CRAFTY_L4_VIP read BY pihole to author its LAN split-horizon answers),
# GATEWAY_VIP/UNIFI_L4_VIP/CRAFTY_L4_VIP read BY pihole to author its LAN split-horizon answers;
# plex-remote + pihole: PLEX_L4_VIP),
# vpn-ingress (WG_CLIENT_CIDR),
# velero (S3_BACKUP_ENDPOINT, S3_BACKUP_REGION,
# VELERO_BACKUP_BUCKET, VELERO_BACKUP_PREFIX), apps-vms (UNIFI_L4_VIP). A ${TOKEN} in an
# UNSUBSTITUTED path would ship the literal string into the cluster.
@@ -175,6 +177,26 @@ data:
# dev -> 192.168.1.56 (base default; next free after crafty .55 in dev's .53-.60 pool)
# prod -> 192.168.2.23 (next free after crafty .22 in prod's .20-.30 pool; see clusters/prod)
PIHOLE_DNS_VIP: "192.168.1.56" # PiHole: authoritative LAN DNS for ${BASE_DOMAIN}
# Plex's remote-access listener: raw tcp/32400 for REMOTE Plex clients (apps/wave-0/plex-remote.yaml).
# A FOURTH pinned L4 VIP, for the usual reason — the `shared` Gateway is an L7 HTTPS terminator and
# cannot carry Plex's own TLS. Plex clients do not resolve `plex.${BASE_DOMAIN}`; they fetch this
# server's address from plex.tv, so the Gateway's L7 path (which still serves the web UI, and was
# measured working) cannot put the server on a client's connection list at all.
#
# PINNED, AND THE PIN IS LOAD-BEARING OFF-REPO: the SOHO router forwards WAN tcp/32400 to this
# address by hand. A VIP taken from the pool head would silently move on a reschedule and break
# remote access with nothing in-cluster looking wrong. See runbooks/plex-remote-access.md.
#
# dev -> 192.168.1.57 (base default; next free after pihole-dns .56 in dev's .53-.60 pool)
# prod -> 192.168.2.24 (next free after pihole-dns .23 in prod's .20-.30 pool; see clusters/prod)
PLEX_L4_VIP: "192.168.1.57" # Plex: tcp/32400 remote access (NOT the web UI, which is L7)
# SECOND CONSUMER since 2026-10-04: catalog/pihole.yaml reads this knob to answer
# plex-vip.${BASE_DOMAIN} on the LAN, which is the local half of the single hostname Plex
# advertises to plex.tv. Without that per-host answer the zone wildcard sends the name to
# ${GATEWAY_VIP}, where nothing listens on 32400. So this value is now typed into THREE places
# that must agree: this knob, the WAN port-forward on the SOHO router (off-repo), and PiHole's
# answer -- and only the first two were true before.
# The FLAT LAN this cluster's nodes and LB VIPs live on, in CIDR form. Consumed as the ingress
# peer of the PiHole DNS CiliumNetworkPolicy (apps/wave-0/pihole-dns.yaml): a resolver reachable
@@ -186,27 +208,54 @@ data:
# prod -> 192.168.2.0/24 (prod LAN; nodes .10/.11/.12)
LAN_CIDR: "192.168.1.0/24" # ingress scope for the PiHole DNS listener
# --- Remote-access VPN client subnet (platform/vpn-ingress, WireGuard) --------------------------
# The tunnel subnet handed to REMOTE VPN clients. `.1` is the server (the hostNetwork DaemonSet,
# on every node); `.2`-`.254` are devices, allocated one /32 each in
# platform/vpn-ingress/peers.yaml. Consumed twice in the pod's config-assembly script: to derive
# the server's own address, and as the `-s` match of the MASQUERADE rule that makes LAN replies
# routable.
#
# IT IS A KNOB RATHER THAN A LITERAL FOR ONE REASON: it is the only address range in this cluster
# that must be checked against EVERY OTHER range at once, so it belongs where those are declared.
# 10.90.0.0/24 was chosen to collide with none of them:
# 10.0.0.0/16 Cilium cluster-pool pod CIDR (${CLUSTER_POD_CIDR})
# 10.43.0.0/16 k3s service CIDR (measured live 2026-10-05: kubernetes svc
# clusterIP 10.43.0.1)
# 10.72.192.0/18 the PIA tunnel's pushed addresses (platform/vpn-egress)
# 192.168.1.0/24 dev LAN / pfSense LAN (${LAN_CIDR} base default)
# 192.168.2.0/24 prod LAN (${LAN_CIDR} on prod)
#
# NO PER-ENVIRONMENT OVERRIDE, and that is deliberate rather than an omission: unlike every VIP
# above, this range is NOT drawn from the LAN. It is private to the tunnel, so the same value is
# correct in both environments and a prod patch would be a no-op that implies otherwise.
#
# IF YOU CHANGE IT, every already-issued client profile breaks (its `Address` is from this range)
# and must be re-rendered — so treat it as fixed once the first device is enrolled.
WG_CLIENT_CIDR: "10.90.0.0/24" # remote VPN clients; .1 = server. NOT a LAN range
# --- Bulk (external NFS) storage host (docs/04 bulk tier) ---------------------------------------
# THE address of the Proxmox host whose ZFS datasets back every `class: bulk` volume: the media
# library (Storage/plex, 8.33 T — plex, sonarr, radarr) and the legacy Nextcloud archive
# THE address of the NAS whose ZFS datasets back every `class: bulk` volume: the media library
# (Storage/plex, 8.33 T — plex, sonarr, radarr, qbittorrent) and the legacy Nextcloud archive
# (Storage/nextcloud, 270 G). The renderer emits it into each static NFS PersistentVolume's
# `spec.nfs.server` (catalog/render.py, BULK_NFS_SERVER); the export PATH is per-dataset and is
# declared in the ServiceDefinition, because the path is identical in every environment and only
# the ADDRESS is not.
#
# WHY THIS IS A KNOB AND NOT A LITERAL — the two clusters are on OPPOSITE SIDES of pfSense.
# The storage host has exactly one interface, vmbr0 192.168.1.9/24, on pfSense's LAN.
# dev nodes are 192.168.1.40/.41/.42 — the SAME L2 segment. They reach it directly, and one
# NFS export to them already exists on that host (/mnt/Storage/k8s-volumes in
# /etc/exports), so this path is proven, not theoretical. Base default = the dev value,
# per the convention of the LAN block above.
# prod nodes are 192.168.2.10/.11/.12 — pfSense's WAN. tcp/2049 does NOT traverse that today;
# 22 and 8006 answer only because pfSense port-forwards them via 192.168.2.102. Opening
# the storage path is a PENDING OPERATOR DECISION with two candidate outcomes that give
# DIFFERENT values here: 192.168.2.102 (another port-forward) or 192.168.1.9 (a route).
# So prod holds a loud TBD-PROD-* placeholder — see clusters/prod/kustomization.yaml for the
# blast radius of shipping it unset, which is NOT the usual "fails to apply".
BULK_NFS_SERVER: "192.168.1.9"
# IT IS NO LONGER A CROSS-NETWORK KNOB (2026-10-07). This used to read "the two clusters are on
# OPPOSITE SIDES of pfSense": the datasets lived on a Proxmox host whose only interface was
# vmbr0 192.168.1.9/24 on pfSense's LAN, which prod (192.168.2.0/24, pfSense's WAN) could reach
# only through a DNAT at 192.168.2.102. Both pools were physically moved onto a standalone
# TrueNAS at 192.168.2.30 — prod's OWN /24 — so there is no crossing to arrange and no candidate
# values to choose between. Measured 2026-10-07: 192.168.2.102:2049 no longer answers;
# 192.168.2.30:2049 and :111 do. There is now exactly ONE storage host and one correct value;
# this stays a knob only because the renderer reads it per-environment.
#
# *** CHANGING THIS VALUE IS NOT A PLAIN RECONCILE. *** A bound PersistentVolume's spec.nfs is
# immutable — measured by server dry-run 2026-10-07:
# spec.persistentvolumesource: Forbidden: spec.persistentvolumesource is immutable after creation
# so Flux's apply FAILS rather than updating, and the pods keep their old mount. The PVs must be
# deleted and recreated; the operator sequence is docs/BULK-NFS-STORAGE.md §10.
BULK_NFS_SERVER: "192.168.2.30"
# Off-cluster S3 backup target (R-STATE-03, R-IDP-05) — the on-Proxmox MinIO, plain HTTP, path-style.
# Consumed by BOTH backup paths: every CNPG Cluster's barmanObjectStore.endpointURL (keycloak-db,
+98
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@@ -0,0 +1,98 @@
---
# Flux Kustomization: kured (Kubernetes Reboot Daemon) — reconciles ./platform/kured.
# Performs the cordon / drain / reboot / uncordon of a node that has a pending OS reboot, strictly
# one node at a time, inside a nightly window, gated on Longhorn volume health. Design rationale,
# every tuned value, and the honest list of what is NOT mitigated: platform/kured/helmrelease.yaml.
#
# WHY ITS OWN KUSTOMIZATION, AND NOT ONE LINE IN platform/kustomization.yaml
#
# The same argument the Cilium split-out recorded in platform/kustomization.yaml and intel-gpu-plugin
# reused, except the consequence is worse here than for either of them:
#
# * `platform` is `wait: true` over twelve-plus components, so its Ready condition cannot tell you
# "the reboot daemon is wedged" from "longhorn is slow".
# * The only emergency valve would be `flux suspend kustomization platform` — freezing storage,
# TLS, DNS, ingress, monitoring, Keycloak and KubeVirt in order to stop touching a DaemonSet.
# * That tier's 10m interval / 5m timeout are called out there as WRONG for a 3-node DaemonSet
# rollout. This is a 3-node DaemonSet rollout.
# * And `platform` gates platform-config, which gates apps-wave-0 (wait:true), which gates
# apps-wave-1. A reboot daemon that failed to go healthy inside that tier would stall EVERY
# APPLICATION in the cluster on "dependency not ready". A component added to make maintenance
# safer must not acquire the ability to cause an outage; that trade is the whole argument.
#
# dependsOn: [platform] — AND THIS ONE IS A REAL EDGE, NOT CONVENTION
#
# Not `cilium` (what intel-gpu-plugin uses) and not `platform-config` (what the leaf UIs use). It is
# `platform`, for two independent reasons:
#
# 1. CRD ORDERING (F-MON1). platform/kured ships a PrometheusRule, and the chart generates a
# ServiceMonitor. Both are CRs whose CRDs (monitoring.coreos.com) are installed by
# kube-prometheus-stack INSIDE the `platform` tier. Flux dry-runs every object in a pass before
# applying any of them, so a pass containing an unknown kind ABORTS — the failure that made the
# CDI StorageProfiles a true deadlock on prod on 2026-09-05 (see
# clusters/base/platform-config-cdi.yaml). Depending on `platform` guarantees the CRDs exist
# before this pass is attempted.
# 2. FUNCTIONAL PREREQUISITE. kured's reboot gate QUERIES Prometheus
# (`prometheusUrl` in the HelmRelease). Prometheus lives in platform/monitoring. If kured ran
# first it would get connection errors, treat the gate as unevaluable and skip every reboot —
# the correct fail-safe direction, but silent. Longhorn, whose volume health IS the gate, is
# also in that tier.
#
# It does NOT need platform-config: no Keycloak, no TLS, no split-horizon DNS, no Gateway, no
# HTTPRoute. kured serves no HTTP to users.
#
# wait: true — A HEALTH SIGNAL, NOT A GATE. Following intel-gpu-plugin rather than the leaf-UI
# template. A leaf UI is legitimately not-Ready for long stretches of a cold start while it waits on
# Keycloak and DNS, so its health is uninformative; kured has no such dependency — it is a DaemonSet
# that opens a socket and watches a file, so on healthy nodes it is Ready in seconds and not-Ready
# genuinely means BROKEN. This turns `flux get kustomization kured` into a one-line answer to "is
# reboot automation live on all three nodes", which is the question the operator must be able to
# answer before trusting a kernel upgrade to it.
#
# NOTHING IN THE GRAPH dependsOn THIS, so wait:true gates nothing — the blast radius of an unhealthy
# kured is this Kustomization's own Ready condition. Do not add `dependsOn: [kured]` anywhere: that
# would hand a node-rebooting DaemonSet the power to stall whatever depends on it, which is precisely
# what the placement above exists to prevent.
#
# prune: true is safe and deliberate. If this Kustomization is deleted, kured's DaemonSet goes with
# it and reboots simply stop happening — nodes are left uncordoned and running. The one caveat is
# that pruning mid-reboot would leave a node CORDONED with no daemon to uncordon it; that is a
# `kubectl uncordon` away and is covered in runbooks/node-reboot-automation.md.
apiVersion: kustomize.toolkit.fluxcd.io/v1
kind: Kustomization
metadata:
name: kured
namespace: flux-system
spec:
# A HelmRelease plus five static manifests, nothing to re-render; kustomize-controller is
# source-triggered, so this is only the drift-correction floor.
interval: 10m
retryInterval: 2m
# 10m, not the 5m the `platform` tier uses: a 3-node DaemonSet rollout under `wait: true` can
# exceed 5m on a cold start (image pull on three nodes), which is one of the reasons the Cilium
# split-out gave for leaving that tier.
timeout: 10m
prune: true
# See the header: a health SIGNAL for a component nothing depends on, not a gate.
wait: true
dependsOn:
- name: platform # monitoring CRDs + Prometheus + Longhorn; see the header, this is load-bearing
sourceRef:
kind: GitRepository
name: flux-system
path: ./platform/kured
# REQUIRED, not boilerplate. platform/kured/alerts.yaml renders `${BASE_DOMAIN}` into the
# `runbook_url` annotation of all three rules. Without this block that token becomes the EMPTY
# STRING and the Kustomization still reports Ready — Flux's substitution fails OPEN — so every
# alert would ship a dead link to `https:///runbooks/node-reboot-automation`. The gate stage
# `flux-postbuild-substitution` asserts the converse (a rendered token implies this block), and
# BASE_DOMAIN is declared in clusters/base/cluster-vars.yaml.
#
# Nothing else in this path contains `${...}` or a bare `$`: the HelmRelease's alertFilterRegexp is
# a plain anchored alternation, and there are no shell snippets anywhere in the component — which
# is deliberate, because envsubst would eat a braced shell variable and `$$` would trip the
# dollar-collapse assertion in the same check.
postBuild:
substituteFrom:
- kind: ConfigMap
name: cluster-vars
+28
View File
@@ -71,4 +71,32 @@ resources:
# controller must NEVER gate the platform chain; same non-gating rationale as headlamp/oauth2-proxy.
# Carries velero-cloud.sops.yaml, so clusters/dev adds a SOPS decryption patch for it (by name).
- backup.yaml # Flux Kustomization -> ./platform/velero (dependsOn platform-config)
# WireGuard remote-access VPN (north-south INGRESS, udp/51820) — POST-platform tier
# (dependsOn platform-config, wait:false). NOT the same thing as platform/vpn-egress, which sends
# pods OUT through PIA; this lets remote CLIENTS IN. Non-gating is load-bearing rather than
# conventional here: its DaemonSet cannot start until the operator creates the out-of-band
# `wg-server-key` Secret, so in the gating `platform` tier an unfinished manual step would have
# stalled every apps wave. Carries no SOPS secret, so neither overlay adds a decryption patch.
- vpn-ingress.yaml # Flux Kustomization -> ./platform/vpn-ingress (dependsOn platform-config)
# PM agent — reads Gitea issues and runs one worker agent per assignment that authors a
# change, gates it and opens a pull request. POST-APP tier (dependsOn apps-wave-0,
# wait:false): what it needs is GITEA, not Keycloak or the Gateway, and it must never gate
# anything — it CrashLoops by design while its credentials are still placeholders. Carries
# pm-agent-credentials.sops.yaml, so both overlays add a SOPS decryption patch for it (by
# name). See clusters/base/pm-agent.yaml and platform/pm-agent/README.md.
- pm-agent.yaml # Flux Kustomization -> ./platform/pm-agent (dependsOn apps-wave-0)
# kured (Kubernetes Reboot Daemon) — its OWN Kustomization (dependsOn platform, wait:true), NOT a
# line in platform/kustomization.yaml. Same reasoning as the Cilium and intel-gpu-plugin
# split-outs, with a sharper consequence: `platform` gates platform-config and every apps wave, so
# a wedged reboot DaemonSet placed in that wait:true tier could stall every application in the
# cluster — a component added to make maintenance SAFER must not be able to cause an outage.
# wait:true here is a HEALTH SIGNAL, not a gate: nothing dependsOn it, and nothing should.
# The `platform` edge is load-bearing rather than conventional — it supplies the
# monitoring.coreos.com CRDs this component's PrometheusRule/ServiceMonitor need (F-MON1), and
# Prometheus itself, which kured QUERIES before every reboot to gate on Longhorn volume health.
# It reboots a node only when /var/run/reboot-required exists, which on these nodes only a
# deliberate operator kernel upgrade creates — the human gate is the sentinel, not the daemon.
# See clusters/base/kured.yaml and platform/kured/helmrelease.yaml.
- kured.yaml # Flux Kustomization -> ./platform/kured (dependsOn platform)
- buildkit.yaml # Flux Kustomization -> ./platform/buildkit (dependsOn platform)
- cluster-vars.yaml # overlay knob surface (base defaults)
+57
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@@ -0,0 +1,57 @@
---
# Flux Kustomization: the PM agent service — reconciles ./platform/pm-agent.
#
# POST-APP TIER (dependsOn apps-wave-0). What this service actually depends on is GITEA: the
# dispatcher authenticates to it at startup, reads issue threads from it, and every worker
# clones and pushes to it. Gitea is in apps-wave-0, so that is the dependency — not
# platform-config, which brings up the Keycloak realm, the wildcard certificate, the Gateway
# and the L2 pool. This service has no UI, serves no traffic, takes no ingress and holds no
# certificate, so none of those are prerequisites and claiming them would be a lie that
# delays its reconcile behind four things it does not use.
#
# NON-GATING (wait:false), and here that is not merely prudent — the pod is EXPECTED to be
# unhealthy for a while:
# * the committed credentials are PLACEHOLDERS, so until the operator replaces them the
# dispatcher fails its Gitea authentication at startup and CrashLoops, by design
# (platform/pm-agent/pm-agent-credentials.sops.yaml.example);
# * the image digest is likewise a placeholder until the operator pushes the image, so
# before that the pod cannot even pull.
# Either of those inside a wait:true tier would stall everything downstream of it. wait:false
# guarantees this service's health can NEVER gate anything, even if some future resource is
# mistakenly pointed dependsOn it. Same non-gating leaf rationale as
# headlamp/homepage/crafty/backup — with a stronger reason than any of them.
#
# PRUNE: true. The whole namespace is disposable — the dispatcher keeps no durable state (the
# Gitea issue thread is its state) and worker Jobs are ephemeral by construction. So removing
# this service from git really should remove it from the cluster, with nothing to orphan.
apiVersion: kustomize.toolkit.fluxcd.io/v1
kind: Kustomization
metadata:
name: pm-agent
namespace: flux-system
spec:
interval: 10m
retryInterval: 2m
timeout: 5m
prune: true
wait: false
dependsOn:
- name: apps-wave-0 # Gitea: the repository this service reads issues from and pushes to
sourceRef:
kind: GitRepository
name: flux-system
path: ./platform/pm-agent
# cluster-vars is substituted for parity with every other tier. NOTE for anyone editing
# platform/pm-agent/: envsubst runs over the WHOLE rendered manifest, comments included, so
# a `${...}` meant for a shell would be replaced with the empty string before the container
# starts (the hazard catalog/README.md documents at length — it silently killed gitea's and
# nextcloud's OIDC registration for days). Nothing under platform/pm-agent/ uses a `${}`
# token today, and the two scripts that DO contain shell live in the image, not in a
# manifest, which is one more reason they are baked in rather than mounted from a ConfigMap.
postBuild:
substituteFrom:
- kind: ConfigMap
name: cluster-vars
# SOPS decryption for pm-agent-credentials.sops.yaml is layered per-environment by the
# overlay (clusters/prod and clusters/dev patch THIS Kustomization by name), identical to
# crafty/headlamp/oauth2-proxy/backup.
+59
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@@ -0,0 +1,59 @@
---
# Flux Kustomization: WireGuard remote-access VPN — reconciles ./platform/vpn-ingress.
#
# POST-PLATFORM TIER (dependsOn platform-config), NON-GATING (wait:false). Not a line in
# platform/kustomization.yaml, for the standard reason plus one specific to this component:
#
# * STANDARD: a leaf must never sit in the gating `platform` tier. While `platform` is not-Ready
# NOTHING downstream reconciles — the incident behind the headlamp/oauth2-proxy/homepage moves
# (DECISIONS-LOG: "Headlamp gating stall").
# * SPECIFIC, AND THE REASON THIS IS NOT A JUDGEMENT CALL: this DaemonSet cannot start until the
# operator replaces the `REPLACE-ME` placeholder in platform/vpn-ingress/wg-server-key.sops.yaml
# with a real key (runbooks/vpn-remote-access.md step 2). That is the correct fail-closed state — an unenrolled VPN must not come up — but in
# the gating tier it would have been a self-inflicted platform-wide outage ON MERGE, with the
# cause (a missing manual step) invisible from any Flux condition.
#
# WHY dependsOn platform-config AND NOT cilium. This component needs no Gateway, no TLS cert, no
# Keycloak and no LB-IPAM pool — it has no HTTPRoute and no LoadBalancer Service, and hostNetwork
# means it does not even need a Cilium endpoint. It could legally reconcile much earlier. It is
# pinned behind platform-config anyway so that the ONE thing remote clients actually consume
# through it — split-horizon DNS and the shared Gateway — exists by the time the tunnel does.
# A tunnel that comes up before the things on the far side of it is a support call, not a feature.
#
# wait:false: nothing in the graph dependsOn this, and its pods are legitimately not-Ready whenever
# the server key is absent or the `wireguard` kernel module has not been loaded on a node. Neither
# condition should be able to gate anything else, even if a future resource is mistakenly pointed
# at it.
apiVersion: kustomize.toolkit.fluxcd.io/v1
kind: Kustomization
metadata:
name: vpn-ingress
namespace: flux-system
spec:
interval: 10m
retryInterval: 2m
timeout: 5m
prune: true
wait: false
dependsOn:
- name: platform-config
sourceRef:
kind: GitRepository
name: flux-system
path: ./platform/vpn-ingress
# REQUIRED, not boilerplate: platform/vpn-ingress/daemonset.yaml renders ${WG_CLIENT_CIDR} into
# the config-assembly script. Without this block that token becomes the EMPTY STRING and the
# Kustomization still reports Ready (Flux's substitution fails OPEN — ci:
# flux-postbuild-substitution), leaving an initContainer that derives a server address of ".1/"
# and a MASQUERADE rule with no source. Both fail loudly at pod start, but the Kustomization
# would look healthy.
postBuild:
substituteFrom:
- kind: ConfigMap
name: cluster-vars
# SOPS decryption is layered per-environment by the overlay (clusters/dev and clusters/prod each
# patch THIS Kustomization by name), identical to headlamp/crafty/velero — this path carries
# platform/vpn-ingress/wg-server-key.sops.yaml, the WireGuard server private key. The `sops-age`
# Secret is created out of band and referenced by NAME only. Without the overlay patch the Secret
# applies cleanly full of ENC[...] and only the tunnel is broken, so the patch is as load-bearing
# as the encrypted file itself.
+44 -7
View File
@@ -122,6 +122,43 @@ patches:
provider: sops
secretRef:
name: sops-age
# vpn-ingress (the WireGuard remote-access VPN, clusters/base/vpn-ingress.yaml) carries
# platform/vpn-ingress/wg-server-key.sops.yaml — the WireGuard SERVER private key, the one
# secret in that component. Without this stanza kustomize hands Flux the raw ciphertext and the
# Secret applies full of ENC[...]: the APPLY SUCCEEDS and every Flux condition stays green, and
# the only symptom is a VPN that no client can handshake with. The DaemonSet's init container
# validates the value with `wg pubkey` specifically so that state is a named CrashLoop instead.
# The `sops-age` Secret is out-of-band (name only).
- patch: |-
apiVersion: kustomize.toolkit.fluxcd.io/v1
kind: Kustomization
metadata:
name: vpn-ingress
namespace: flux-system
spec:
decryption:
provider: sops
secretRef:
name: sops-age
# pm-agent (the Program Manager agent service, clusters/base/pm-agent.yaml) carries
# pm-agent-credentials.sops.yaml — the Gitea write token for the dedicated non-admin bot
# account and the Anthropic subscription token from `claude setup-token`. Without this
# stanza kustomize hands Flux the raw SOPS document and the Secret applies full of
# ciphertext: the APPLY SUCCEEDS, and the only symptom is a dispatcher that cannot
# authenticate to Gitea — so this stanza is as load-bearing as the file it decrypts (same
# silent-failure shape as the apps-vms note below/above). The `sops-age` Secret is created
# out-of-band (name only).
- patch: |-
apiVersion: kustomize.toolkit.fluxcd.io/v1
kind: Kustomization
metadata:
name: pm-agent
namespace: flux-system
spec:
decryption:
provider: sops
secretRef:
name: sops-age
# apps-vms (the KubeVirt VM tier, clusters/base/apps-vms.yaml) gained its FIRST encrypted Secret
# on 2026-09-14: apps/vms/unifi/unifi-uos-installer.sops.yaml, the operator's UOS installer URL,
# which 30-virtualmachine.yaml mounts into the guest as a disk. Without this stanza kustomize
@@ -242,15 +279,15 @@ patches:
- op: replace
path: /data/CRAFTY_L4_VIP
value: "192.168.1.55"
# Bulk (external NFS) storage host: the Proxmox host itself, on the SAME LAN as dev's nodes
# (192.168.1.40/.41/.42), which already hold an NFS export from it (/mnt/Storage/k8s-volumes).
# Restated verbatim rather than inherited, per this overlay's "supply every knob" convention.
# Dev is therefore the environment in which the bulk manifests can actually be VALIDATED
# end-to-end before prod's network path exists — provided the additive `zfs set sharenfs=`
# change described in docs/BULK-NFS-STORAGE.md is applied for the dev node addresses.
# Bulk (external NFS) storage host. THIS VALUE IS INERT — dev is decommissioned, its nodes
# (192.168.1.40/.41/.42) no longer exist, and the Proxmox host this used to name (192.168.1.9)
# went with the pools it held. It is restated per this overlay's "supply every knob"
# convention, not because anything consumes it. It carries the real address so that no file
# in the tree renders a host that is gone; it has NOT been proven from a dev node, because
# there is no dev node to prove it from.
- op: replace
path: /data/BULK_NFS_SERVER
value: "192.168.1.9"
value: "192.168.2.30"
# Off-cluster backup target: the on-Proxmox MinIO (plain HTTP, path-style) that every CNPG
# barmanObjectStore and Velero's backupStorageLocation write to.
#
+92 -47
View File
@@ -113,6 +113,43 @@ patches:
provider: sops
secretRef:
name: sops-age
# vpn-ingress (the WireGuard remote-access VPN, clusters/base/vpn-ingress.yaml) carries
# platform/vpn-ingress/wg-server-key.sops.yaml — the WireGuard SERVER private key, the one
# secret in that component. Without this stanza kustomize hands Flux the raw ciphertext and the
# Secret applies full of ENC[...]: the APPLY SUCCEEDS and every Flux condition stays green, and
# the only symptom is a VPN that no client can handshake with. The DaemonSet's init container
# validates the value with `wg pubkey` specifically so that state is a named CrashLoop instead.
# The `sops-age` Secret is out-of-band (name only).
- patch: |-
apiVersion: kustomize.toolkit.fluxcd.io/v1
kind: Kustomization
metadata:
name: vpn-ingress
namespace: flux-system
spec:
decryption:
provider: sops
secretRef:
name: sops-age
# pm-agent (the Program Manager agent service, clusters/base/pm-agent.yaml) carries
# pm-agent-credentials.sops.yaml — the Gitea write token for the dedicated non-admin bot
# account and the Anthropic subscription token from `claude setup-token`. Without this
# stanza kustomize hands Flux the raw SOPS document and the Secret applies full of
# ciphertext: the APPLY SUCCEEDS, and the only symptom is a dispatcher that cannot
# authenticate to Gitea — so this stanza is as load-bearing as the file it decrypts (same
# silent-failure shape as the apps-vms note below/above). The `sops-age` Secret is created
# out-of-band (name only).
- patch: |-
apiVersion: kustomize.toolkit.fluxcd.io/v1
kind: Kustomization
metadata:
name: pm-agent
namespace: flux-system
spec:
decryption:
provider: sops
secretRef:
name: sops-age
# apps-vms (the KubeVirt VM tier, clusters/base/apps-vms.yaml) gained its FIRST encrypted Secret
# on 2026-09-14: apps/vms/unifi/unifi-uos-installer.sops.yaml, the operator's UOS installer URL,
# which 30-virtualmachine.yaml mounts into the guest as a disk. Without this stanza kustomize
@@ -476,6 +513,26 @@ patches:
- op: replace
path: /data/PIHOLE_DNS_VIP
value: "192.168.2.23"
# Plex's remote-access listener VIP — raw tcp/32400 for REMOTE Plex clients
# (apps/wave-0/plex-remote.yaml). 192.168.2.24 is the NEXT FREE address in the prod pool
# 192.168.2.20-.30, verified live 2026-10-03: the CiliumLoadBalancerIPPool `default-pool`
# reported IPsTotal 11 / IPsUsed 4 / IPsAvailable 7, and the only four allocations are .20
# (cilium-gateway-shared), .21 (unifi-l4-tcp/-udp), .22 (crafty-l4-tcp/-udp) and .23
# (pihole-dns-tcp/-udp). It is inside the pool block the operator already asserted sits outside
# the SOHO router's DHCP scope, and it is not a node address (.10/.11/.12) or the
# control-plane VIP (.9).
#
# UNLIKE .23, THIS ONE IS ALSO A WAN PORT-FORWARD TARGET. The router forwards WAN tcp/32400
# here, by hand, off-repo — so changing this value is a two-place edit and the router is the
# half that CI cannot check. runbooks/plex-remote-access.md is the procedure.
#
# NOT ARP-PROBED. .23 was verified free with `arping` from a LAN host before it was claimed;
# for .24 only the in-cluster pool accounting above was checked, so an off-cluster squatter on
# this address would not have been caught. Probe before trusting it if remote access comes up
# with a conflict.
- op: replace
path: /data/PLEX_L4_VIP
value: "192.168.2.24"
# The prod flat LAN. This is the 192.168.2.0/24 segment the SOHO ROUTER at 192.168.2.1 owns —
# NOT pfSense's 192.168.1.0/24, which is a different network and not in the LAN-DNS path.
# It scopes the ingress allow for PiHole's DNS listener to LAN clients only.
@@ -483,60 +540,48 @@ patches:
path: /data/LAN_CIDR
value: "192.168.2.0/24"
# ------------------------------------------------------------------------------------------
# BULK (EXTERNAL NFS) STORAGE HOST — *** NOT YET DECIDED. THIS PLACEHOLDER IS LOAD-BEARING. ***
# BULK (EXTERNAL NFS) STORAGE HOST — the TrueNAS at 192.168.2.30.
# ------------------------------------------------------------------------------------------
# Backs every `class: bulk` volume: the 8.33 T media library (Storage/plex — plex, sonarr,
# radarr) and the 270 G legacy Nextcloud archive (Storage/nextcloud).
# radarr, qbittorrent) and the 270 G legacy Nextcloud archive (Storage/nextcloud).
#
# THE STORAGE HOST IS NOT REACHABLE FROM PROD AT ALL RIGHT NOW. It has one interface,
# vmbr0 192.168.1.9/24, on pfSense's LAN; prod's nodes are on 192.168.2.0/24, pfSense's WAN.
# 22 and 8006 answer from prod only because pfSense port-forwards them via 192.168.2.102;
# 2049 and 111 do not. Opening that path is an OPERATOR decision, and the two candidate
# outcomes give DIFFERENT values here:
# port-forward 192.168.2.102:2049 -> 192.168.1.9:2049 => "192.168.2.102"
# a WAN->LAN route to 192.168.1.0/24 => "192.168.1.9"
# Guessing either one authors a prod cluster that mounts nothing, or — worse, if the guess
# ever became reachable — mounts something unintended. So it stays a placeholder.
# THIS WAS THE REPO'S ONE LOAD-BEARING PLACEHOLDER, AND THE REASON IT COULD BE IS NOW GONE.
# The datasets lived on a Proxmox host with a single interface on pfSense's LAN
# (192.168.1.9), which prod could reach only through a DNAT at 192.168.2.102 — so the correct
# value here depended on an undecided operator choice, and guessing it would have authored a
# cluster that mounts nothing. Both pools were physically moved onto a standalone TrueNAS at
# 192.168.2.30, prod's OWN /24. No crossing to arrange, no candidates to choose between.
# Measured 2026-10-07: 192.168.2.102:2049 no longer answers; 192.168.2.30:2049 and :111 do.
#
# WHICH PORTS THE DECISION MUST OPEN: exactly ONE, tcp/2049. The PVs mount nfsvers=4.1, and
# NFSv4 carries mount and lock in-protocol — no rpcbind/111, no mountd, no statd. Choosing v4
# over v3 was in part this decision's cost: v3 would have needed four ports and three of them
# on ephemeral numbers.
#
# WHAT THE EXPORT MUST ALLOW IS ALREADY SETTLED, and it is the same under BOTH outcomes.
# Measured 2026-09-07 from this workstation (192.168.2.132) through the existing port-forward:
# the storage host logged the connection as coming FROM 192.168.2.132, not from a pfSense LAN
# address (`ss -tn` peer 192.168.2.132, and the host's only route off-LAN is its default via
# 192.168.1.1). pfSense DNATs WITHOUT source NAT, so the NFS server will see prod's REAL node
# addresses either way. The additive `zfs set sharenfs=` values are in docs/BULK-NFS-STORAGE.md.
#
# *** BLAST RADIUS — READ BEFORE MERGING THIS TO A BRANCH PROD RECONCILES. ***
# A PersistentVolume's spec.nfs.server is an unvalidated string: the API server ACCEPTS this
# placeholder, the PV is created and the PVC BINDS to it (binding is pure control-plane). The
# failure surfaces only when a pod mounts — MountVolume.SetUp "Failed to resolve server
# TBD-PROD-BULK-NFS-SERVER" — so plex, sonarr, radarr and nextcloud would sit in
# ContainerCreating on prod. Unlike the LAN knobs above, this placeholder does NOT fail at
# apply time and there is no CRD validation to lean on. Set this value BEFORE prod reconciles
# a revision containing the bulk volumes; the dev overlay renders a working value, which is
# where these manifests are meant to be proven first.
# ONE PORT IS STILL ALL IT NEEDS: tcp/2049. The PVs mount nfsvers=4.1 and NFSv4 carries mount
# and lock in-protocol — no rpcbind/111, no mountd, no statd. The NAS advertises
# `+3 +4 +4.1 +4.2` (/proc/fs/nfsd/versions, measured), so 4.1 negotiates.
- op: replace
path: /data/BULK_NFS_SERVER
# 192.168.2.102 is pfSense's WAN address, which DNATs tcp/2049 through to the Proxmox
# host's REAL address 192.168.1.9 on pfSense's LAN. Prod sits on the WAN side and cannot
# reach 192.168.1.9 directly, so the cluster mounts the NAT address. Dev is on the LAN and
# keeps the base value 192.168.1.9.
# VERIFIED ON THE NAS 2026-10-07, before any cluster touched it (`exportfs -v`):
# /mnt/Storage/plex 192.168.2.10/.11/.12 rw,sec=sys,secure,root_squash,no_all_squash
# /mnt/Storage/nextcloud 192.168.2.10/.11/.12 ro,sec=sys,secure,root_squash,no_all_squash
#
# PROVEN from k3s-prod-1 on 2026-09-12, not inferred:
# - mount of 192.168.2.102:/mnt/Storage/plex negotiated nfs4 vers=4.1 proto=tcp
# - a write as uid 1000 succeeded. Tested as 1000 and NOT root deliberately: the export
# carries no_root_squash, so a root write would have passed and proved nothing, while
# LSIO images default to PUID 911 and would have gone Ready then failed every import
# with EACCES. The tree is 0755 1000:3000, so uid 1000 is the only writer.
# - ln() across downloads/ -> tv/ returned link count 2 (same inode), so the arrs get
# real atomic moves instead of silently degrading to copy-then-delete on EXDEV.
# pfSense DNATs WITHOUT source NAT (the host logs prod's own node addresses as the peer),
# so the ZFS export ACL names 192.168.2.10/.11/.12 directly rather than one translated IP.
value: "192.168.2.102"
# no_all_squash is the flag the entire permission model rests on: client uids pass through
# untouched, so the arrs' PUID=1000 arrives as the owner of a 0755 1000:3000 tree. sec=sys
# keeps that numeric rather than principal-mapped. The export deliberately does NOT carry
# no_root_squash, which the Proxmox one did: nothing here needs it, because every write to
# the tree happens after the LSIO drop to uid 1000 and the images only chown their Longhorn
# /config. Both subPath directories (plex/downloads, nextcloud/nextcloud) already exist at
# 0755 1000:3000, so a squashed root can still traverse them for subPath resolution.
#
# The ro= posture on the archive is now SERVER-enforced, which the old export also managed.
# The media tree's read-only half (plex) stays a CLIENT-side guarantee — all four media pods
# can land on any node, so the server sees the same three addresses for reader and writers
# alike and cannot tell them apart. Unchanged by the move; see docs/BULK-NFS-STORAGE.md §5.
#
# *** CHANGING THIS VALUE REQUIRES DELETING AND RECREATING THE PVs. *** A bound PV's
# spec.nfs is immutable — measured by server dry-run 2026-10-07:
# spec.persistentvolumesource: Forbidden: spec.persistentvolumesource is immutable after creation
# so Flux's apply FAILS rather than updating and the pods keep their old, dead mount. The
# operator sequence is docs/BULK-NFS-STORAGE.md §10. Retain + the renderer's pre-set
# claimRef make it safe: no data is touched and each recreated PV rebinds its own PVC.
value: "192.168.2.30"
# ==========================================================================================
# OFF-CLUSTER DR TARGET — Cloudflare R2 (operator, 2026-09-05; bucket + token 2026-09-07).
# ==========================================================================================
+87 -1
View File
@@ -98,7 +98,10 @@ RUN set -eux; \
# --- runtime -----------------------------------------------------------------
ARG FEDORA_VERSION=44
FROM registry.fedoraproject.org/fedora-minimal:${FEDORA_VERSION}
# Stage `conformance-runner` is the image that ships; stage `verify` (end of file) is a TEST stage
# built FROM it that only runs assertions and is never pushed. build-image.sh and the CI
# pipeline build `--target verify` to prove it and `--target conformance-runner` for the image.
FROM registry.fedoraproject.org/fedora-minimal:${FEDORA_VERSION} AS conformance-runner
ARG CHAINSAW_VERSION=
ARG KUBECTL_VERSION=
@@ -198,3 +201,86 @@ WORKDIR /workspace
# prepend something the policy cannot see. `bash` is the interactive fallback for a human
# debugging the image locally.
CMD ["/bin/bash"]
# =============================================================================
# verify — a TEST stage, never shipped. Every assertion conformance/incluster/build-image.sh used
# to make with `run --user 65532 --read-only --tmpfs /workspace` now runs here, at build time,
# because CI builds on rootless BuildKit where no container runtime exists.
#
# WHAT A BUILD STEP CAN AND CANNOT REPRODUCE:
# * uid 65532 ............ exact (USER inherited from the conformance-runner stage).
# * no network ........... exact: RUN --network=none, and the first check proves it.
# * --read-only rootfs ... NOT reproducible (a RUN step always has a writable layer).
# Approximated by permission: everything uid 65532 can write must lie
# under /workspace, /tmp or /var/tmp. In the Job only /workspace (and
# /results) are writable — the image points HOME and TMPDIR there — and
# readOnlyRootFilesystem is enforced by
# platform/kyverno/admission/conformance-trigger-job-shape.yaml.
# =============================================================================
FROM conformance-runner AS verify
RUN --network=none /bin/bash -euo pipefail <<'VERIFY'
echo "--- no network (the build-time stand-in for the Job's isolation) ---"
if getent hosts gitea.home.keithjackson.dev >/dev/null 2>&1 || timeout 3 bash -c '</dev/tcp/1.1.1.1/443' 2>/dev/null; then
echo "UNEXPECTED: network reachable in the verify stage"; exit 1
fi
echo "confirmed: no network"
echo "--- id ---"; id
echo "--- HOME ---"; echo "HOME=${HOME}"
echo "--- bash ---"; bash --version | head -1
echo "--- python3 ---"; python3 --version
echo "--- git ---"; git --version
echo "--- kubectl ---"; kubectl version --client
echo "--- chainsaw ---"; chainsaw version
echo "--- baked versions ---"; cat /etc/conformance-runner-versions
echo "--- conformance-clone: fixed path, root-owned, NOT writable by the runner ---"
stat -c "%n %U:%G %a" /usr/local/bin/conformance-clone
if [ -w /usr/local/bin/conformance-clone ]; then
echo "UNEXPECTED: uid $(id -u) can write the one executable the policy will trust"; exit 1
fi
echo "confirmed: not writable by uid $(id -u)"
# Each of these MUST fail. Assert the non-zero exit as well as the message: a check that only
# greps stderr would pass a build where the guard had stopped rejecting.
expect_fail() {
local label="$1"; shift
local out rc=0
out="$(env "$@" 2>&1)" || rc=$?
echo "--- ${label} ---"
printf "%s\n" "${out}" | head -2
if [ "${rc}" -eq 0 ]; then
echo "UNEXPECTED: that should have failed, but it exited 0"; exit 1
fi
echo "(rejected, exit ${rc})"
}
expect_fail "conformance-clone rejects arguments (that is where an injection would live)" \
conformance-clone --layer l2
expect_fail "conformance-clone rejects a missing SHA" \
conformance-clone
expect_fail "conformance-clone rejects a branch name instead of a SHA (no silent run of the tip)" \
CONFORMANCE_GIT_SHA=main conformance-clone
expect_fail "conformance-clone rejects an UNRENDERED placeholder" \
CONFORMANCE_GIT_SHA=@@CONFORMANCE_GIT_SHA@@ conformance-clone
expect_fail "conformance-clone rejects a HOME off the workspace volume" \
CONFORMANCE_GIT_SHA=0000000000000000000000000000000000000000 \
HOME=/etc conformance-clone
expect_fail "conformance-clone refuses a REDIRECTED repository URL (the env-injection hole)" \
CONFORMANCE_GIT_SHA=0000000000000000000000000000000000000000 \
CONFORMANCE_REPO_URL=https://evil.invalid/x.git conformance-clone
expect_fail "conformance-clone refuses a clone target off the workspace volume" \
CONFORMANCE_GIT_SHA=0000000000000000000000000000000000000000 \
CONFORMANCE_SRC=/etc/src conformance-clone
echo "--- the root filesystem is not writable by the runner (expected: a failure) ---"
if touch /should-fail 2>/dev/null; then echo "UNEXPECTED: / is writable by uid $(id -u)"; exit 1; fi
echo "confirmed: / is not writable"
echo "--- everything uid $(id -u) CAN write lies under /workspace, /tmp or /var/tmp ---"
stray="$(find / -xdev \( -path /proc -o -path /sys -o -path /dev \) -prune -o -writable ! -type l -print 2>/dev/null \
| grep -vE '^/(workspace|tmp|var/tmp)(/|$)' || true)"
if [ -n "${stray}" ]; then echo "UNEXPECTED: writable outside the allowed paths:"; printf ' %s\n' ${stray} | head -20; exit 1; fi
echo "confirmed: no writable path outside /workspace, /tmp, /var/tmp"
echo "--- HOME is writable (the workspace emptyDir) ---"
touch "${HOME}/.probe" || { echo "UNEXPECTED: ${HOME} not writable"; exit 1; }
echo "confirmed: ${HOME} is writable"
echo "--- uid is non-zero ---"
[ "$(id -u)" -ne 0 ] || { echo "UNEXPECTED: running as root"; exit 1; }
echo "confirmed: running as uid $(id -u), not root"
echo "CONFORMANCE-RUNNER VERIFIED"
VERIFY
+9 -4
View File
@@ -61,10 +61,15 @@ credentials — the Job's own scoped ServiceAccount does (R-SEC-02).
> digest-pinned to the conformance-runner image, `command` exactly
> `/usr/local/bin/conformance-clone`, and **no `args` at all**. `ephemeralContainers` and
> `env`/`envFrom` were the same shape of hole and are closed in the same policy.
- `build-image.sh` — builds the above, **verifies the toolchain by running it** inside the
image as uid 65532 with `--read-only`, and prints the digest. It **never pushes**: it
prints the exact `podman push --digestfile …` command for the operator instead. See
`conformance/versions.env` `CONFORMANCE_RUNNER_IMAGE` for the post-push pin.
- `build-image.sh` — builds the above and **verifies the toolchain by running it**: the
Containerfile's `verify` stage executes every tool and every `conformance-clone` refusal as
uid 65532 with no network, at build time. It **never pushes**, and neither does anyone from a
workstation: CI (`.gitea/workflows/images.yaml`) builds the same Containerfile and `verify`
stage on rootless BuildKit (`platform/buildkit/`), and on a push to `main` publishes the
verified image under `sha-<commit>` and `main`. Renovate then moves
`CONFORMANCE_RUNNER_IMAGE_DIGEST` in `conformance/versions.env` onto the registry-returned
digest in a pull request (that file is a sensitive path, so the bump needs an
administrator's `/approve-override`).
`--verify-clone` additionally has `conformance-clone` really clone this repo at a real SHA
and asserts the checkout matches (opt-in, because it needs the Gitea host reachable — the
default verify stays offline so an air-gapped build is fully checked, not half-checked).
+51 -129
View File
@@ -1,43 +1,49 @@
#!/usr/bin/env bash
###############################################################################
# conformance/incluster/build-image.sh — build the pinned `conformance-runner`
# image and print its digest. Closes docs/plans/l2-l3-conformance-ci-wiring.md §3 item 1.
# image and prove it works. Closes docs/plans/l2-l3-conformance-ci-wiring.md §3 item 1.
#
# ./build-image.sh # build + verify + print the digest and push command
# ./build-image.sh # build the verify target, then the image
# ./build-image.sh --print-build-args # print KEY=VALUE build args (what CI consumes)
# ./build-image.sh --no-verify # build only (skip the in-image tool proof)
# ./build-image.sh --verify-clone # ALSO really clone this repo with conformance-clone.
# # Opt-in because it needs the Gitea host reachable; the
# # default verify is offline so an air-gapped build is
# # still fully checked rather than half-checked.
# ENGINE=docker ./build-image.sh # build with docker instead of podman
# IMAGE_TAG=foo ./build-image.sh # override the local tag (CI uses this)
#
# THIS SCRIPT NEVER PUSHES. Publishing is an operator action: the registry credential is
# not an agent's to hold, and the pushed digest is what a fail-closed admission policy
# then trusts. So this builds locally, proves the toolchain works INSIDE the image as the
# non-root uid the policy demands, and prints the exact `podman push` line for a human.
# THIS SCRIPT NEVER PUSHES — and nobody pushes this image from a workstation either.
# Publishing is done by CI: .gitea/workflows/images.yaml builds the SAME Containerfile on
# rootless BuildKit (platform/buildkit/), taking its build args from `--print-build-args`, and
# on a push to `main` pushes it to the Gitea registry and records the registry-returned digest
# in the job summary; Renovate then opens the pull request that moves conformance/versions.env
# onto that digest. The proof that the image works is the Containerfile's `verify` stage, which
# this script (podman locally) and CI both build.
#
# VERSIONS ARE NOT DEFINED HERE. They are read from infra/devcontainer/versions.env, the
# single source of truth (CHAINSAW_VERSION, KUBECTL_VERSION, FEDORA_VERSION) — the same
# pins the toolbox gate runs with. Nothing in this file invents a version.
#
# THE DIGEST CAVEAT — read it before pasting a digest into anything.
# The digest printed here is the LOCAL manifest digest. It is normally identical to the
# registry digest (podman pushes the manifest it already has rather than recompressing),
# but that is a property of the push, not a guarantee. So the push command below uses
# `--digestfile`: the digest the registry actually returns is the authoritative one, and
# that is the one that goes into conformance/versions.env.
# NO DIGEST IS PRINTED. A manifest digest does not exist until a registry holds the manifest,
# and the only digest anything may pin is the one the REGISTRY returns. CI captures that at
# push time (.gitea/workflows/scripts/images.sh) and Renovate carries it into
# conformance/versions.env.
###############################################################################
set -euo pipefail
HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO_ROOT="$(cd "${HERE}/../.." && pwd)"
ENGINE="${ENGINE:-podman}"
TAG_OVERRIDE="${IMAGE_TAG:-}"
VERIFY=1
VERIFY_CLONE=0
PRINT_ARGS=0
for arg in "$@"; do
case "$arg" in
--no-verify) VERIFY=0 ;;
--print-build-args) PRINT_ARGS=1 ;;
--verify-clone) VERIFY_CLONE=1 ;;
-h|--help) sed -n '2,/^####/p' "${BASH_SOURCE[0]}" | sed '$d' | sed 's/^# \{0,1\}//'; exit 0 ;;
*) echo "unknown argument: $arg" >&2; exit 2 ;;
@@ -48,8 +54,6 @@ log() { printf '\n\033[1m==> %s\033[0m\n' "$*"; }
info() { printf ' %s\n' "$*"; }
die() { printf '\033[31mERROR: %s\033[0m\n' "$*" >&2; exit 1; }
command -v "${ENGINE}" >/dev/null 2>&1 || die "'${ENGINE}' not on PATH (set ENGINE=docker to use docker)"
# --- pins: sourced, never invented -------------------------------------------
TOOLCHAIN_ENV="${REPO_ROOT}/infra/devcontainer/versions.env"
[ -f "${TOOLCHAIN_ENV}" ] || die "missing ${TOOLCHAIN_ENV} — the pins live there, not here"
@@ -59,14 +63,21 @@ source "${TOOLCHAIN_ENV}"
: "${KUBECTL_VERSION:?KUBECTL_VERSION not set in ${TOOLCHAIN_ENV}}"
: "${FEDORA_VERSION:?FEDORA_VERSION not set in ${TOOLCHAIN_ENV}}"
# THE build args, in ONE place; `--print-build-args` hands them to the CI pipeline, which builds
# this Containerfile on rootless BuildKit.
BUILD_ARGS=("CHAINSAW_VERSION=${CHAINSAW_VERSION}" "KUBECTL_VERSION=${KUBECTL_VERSION}" "FEDORA_VERSION=${FEDORA_VERSION}")
if [ "${PRINT_ARGS}" -eq 1 ]; then printf '%s\n' "${BUILD_ARGS[@]}"; exit 0; fi
command -v "${ENGINE}" >/dev/null 2>&1 || die "'${ENGINE}' not on PATH (set ENGINE=docker to use docker)"
# --- image name: fixed by the admission policy -------------------------------
# platform/kyverno/admission/conformance-trigger-job-shape.yaml admits ONLY
# gitea.home.keithjackson.dev/home-network/conformance-runner@sha256:*. The repository path
# is therefore not a preference; a different path is a DENIED Job. Do not "improve" it here.
IMAGE_REPO="gitea.home.keithjackson.dev/home-network/conformance-runner"
# The tag is build convenience only (a human-readable handle for the push). Admission
# ignores it: only the digest is ever referenced from a Job.
IMAGE_TAG="chainsaw${CHAINSAW_VERSION}-kubectl${KUBECTL_VERSION}-fc${FEDORA_VERSION}"
# The tag is a local handle only. CI re-tags what it publishes (git SHA + `main`), and
# admission ignores tags entirely: only the digest is ever referenced from a Job.
IMAGE_TAG="${TAG_OVERRIDE:-chainsaw${CHAINSAW_VERSION}-kubectl${KUBECTL_VERSION}-fc${FEDORA_VERSION}}"
IMAGE_REF="${IMAGE_REPO}:${IMAGE_TAG}"
log "Building ${IMAGE_REF}"
@@ -76,86 +87,31 @@ info " CHAINSAW ${CHAINSAW_VERSION}"
info " KUBECTL ${KUBECTL_VERSION}"
info " FEDORA ${FEDORA_VERSION}"
"${ENGINE}" build \
--file "${HERE}/Containerfile" \
--tag "${IMAGE_REF}" \
--build-arg "CHAINSAW_VERSION=${CHAINSAW_VERSION}" \
--build-arg "KUBECTL_VERSION=${KUBECTL_VERSION}" \
--build-arg "FEDORA_VERSION=${FEDORA_VERSION}" \
"${HERE}"
# Provenance: CI passes the commit it is building, so a pulled image names its source tree.
LABEL_ARGS=()
[ -z "${BUILD_REVISION:-}" ] || LABEL_ARGS+=(--label "org.opencontainers.image.revision=${BUILD_REVISION}")
ARG_FLAGS=()
for a in "${BUILD_ARGS[@]}"; do ARG_FLAGS+=(--build-arg "$a"); done
# --- verify: the point of the whole exercise ---------------------------------
# The stock chainsaw image "had" chainsaw and still could not run ./run.sh. So prove the
# tools EXECUTE, and prove they execute as the NON-ROOT uid with a READ-ONLY root
# filesystem — the shape the admission policy forces. A pass here is the only evidence
# this image is usable; a build that merely succeeded is not.
# The stock chainsaw image "had" chainsaw and still could not run ./run.sh. So the proof is that
# the tools EXECUTE, as the NON-ROOT uid, with no network, that conformance-clone is not writable
# by that uid and refuses every hostile input, and that nothing outside /workspace is writable.
# That proof is the Containerfile's `verify` stage, built here and in CI alike (CI has no
# container runtime — rootless BuildKit only). See the stage's header for what a build step can
# and cannot reproduce of the Job's shape. A build that merely succeeded is not evidence.
if [ "${VERIFY}" -eq 1 ]; then
log "Verifying the toolchain inside the image (non-root, read-only rootfs)"
"${ENGINE}" run --rm \
--user 65532:65532 \
--read-only \
--tmpfs /workspace:rw,mode=1777 \
--entrypoint "" \
"${IMAGE_REF}" \
/bin/bash -euo pipefail -c '
echo "--- id ---"; id
echo "--- HOME ---"; echo "HOME=${HOME}"
echo "--- bash ---"; bash --version | head -1
echo "--- python3 ---"; python3 --version
echo "--- git ---"; git --version
echo "--- kubectl ---"; kubectl version --client
echo "--- chainsaw ---"; chainsaw version
echo "--- baked versions ---"; cat /etc/conformance-runner-versions
echo "--- conformance-clone: fixed path, root-owned, NOT writable by the runner ---"
stat -c "%n %U:%G %a" /usr/local/bin/conformance-clone
if [ -w /usr/local/bin/conformance-clone ]; then
echo "UNEXPECTED: uid $(id -u) can write the one executable the policy will trust"; exit 1
fi
echo "confirmed: not writable by uid $(id -u)"
# Each of these MUST fail. Assert the non-zero exit as well as the message: a check
# that only greps stderr would pass a build where the guard had stopped rejecting.
# (`|| true` inside the capture keeps `set -e`/`pipefail` from aborting on the
# expected failure — without it the verify dies at the first negative case.)
expect_fail() {
local label="$1"; shift
local out rc=0
out="$(env "$@" 2>&1)" || rc=$?
echo "--- ${label} ---"
printf "%s\n" "${out}" | head -2
if [ "${rc}" -eq 0 ]; then
echo "UNEXPECTED: that should have failed, but it exited 0"; exit 1
fi
echo "(rejected, exit ${rc})"
}
expect_fail "conformance-clone rejects arguments (that is where an injection would live)" \
conformance-clone --layer l2
expect_fail "conformance-clone rejects a missing SHA" \
conformance-clone
expect_fail "conformance-clone rejects a branch name instead of a SHA (no silent run of the tip)" \
CONFORMANCE_GIT_SHA=main conformance-clone
expect_fail "conformance-clone rejects an UNRENDERED placeholder" \
CONFORMANCE_GIT_SHA=@@CONFORMANCE_GIT_SHA@@ conformance-clone
expect_fail "conformance-clone rejects a HOME off the workspace volume" \
CONFORMANCE_GIT_SHA=0000000000000000000000000000000000000000 \
HOME=/etc conformance-clone
expect_fail "conformance-clone refuses a REDIRECTED repository URL (the env-injection hole)" \
CONFORMANCE_GIT_SHA=0000000000000000000000000000000000000000 \
CONFORMANCE_REPO_URL=https://evil.invalid/x.git conformance-clone
expect_fail "conformance-clone refuses a clone target off the workspace volume" \
CONFORMANCE_GIT_SHA=0000000000000000000000000000000000000000 \
CONFORMANCE_SRC=/etc/src conformance-clone
echo "--- rootfs is read-only (expected: a failure) ---"
if touch /should-fail 2>/dev/null; then echo "UNEXPECTED: rootfs is writable"; exit 1; fi
echo "confirmed: / is read-only"
echo "--- HOME is writable (the workspace emptyDir) ---"
touch "${HOME}/.probe" && echo "confirmed: ${HOME} is writable"
echo "--- uid is non-zero ---"
[ "$(id -u)" -ne 0 ] && echo "confirmed: running as uid $(id -u), not root"
'
log "Verifying the toolchain (Containerfile target: verify)"
"${ENGINE}" build "${ARG_FLAGS[@]}" --target verify --file "${HERE}/Containerfile" "${HERE}"
log "Toolchain verified"
fi
"${ENGINE}" build "${LABEL_ARGS[@]}" "${ARG_FLAGS[@]}" --target conformance-runner \
--file "${HERE}/Containerfile" --tag "${IMAGE_REF}" "${HERE}"
# --- verify the clone helper against the REAL repository (opt-in: needs network) ----
# LOCAL ONLY: this one `run`s the image, which needs a container engine, so CI does not do it.
# The negative cases above prove conformance-clone refuses bad input. This proves the
# positive case: it lands the EXACT commit asked for and can prove it did. Without this, the
# rev-parse assertion is only an unexercised line of shell.
@@ -184,46 +140,12 @@ if [ "${VERIFY_CLONE}" -eq 1 ]; then
log "conformance-clone verified against the real repository"
fi
# --- digest ------------------------------------------------------------------
DIGEST="$("${ENGINE}" image inspect --format '{{.Digest}}' "${IMAGE_REF}")"
# --- result ------------------------------------------------------------------
IMAGE_ID="$("${ENGINE}" image inspect --format '{{.Id}}' "${IMAGE_REF}")"
SIZE="$("${ENGINE}" image inspect --format '{{.Size}}' "${IMAGE_REF}")"
log "Built ${IMAGE_REF}"
info "local manifest digest ${DIGEST}"
info "image id ${IMAGE_ID}"
info "size $(( SIZE / 1024 / 1024 )) MiB"
cat <<EOF
================================================================================
NOT PUSHED. Publishing is an operator action — this script holds no registry
credential and will never acquire one.
OPERATOR: run these two commands, then paste the digest from the digestfile into
conformance/versions.env (CONFORMANCE_RUNNER_IMAGE) via a PR:
${ENGINE} login gitea.home.keithjackson.dev
${ENGINE} push --digestfile /tmp/conformance-runner.digest \\
${IMAGE_REF}
Then:
cat /tmp/conformance-runner.digest
# -> sha256:.... THIS is the authoritative digest, not the local one above.
# conformance/versions.env
CONFORMANCE_RUNNER_IMAGE="${IMAGE_REPO}@\$(cat /tmp/conformance-runner.digest)"
WHY THE DIGEST AND NOT THE TAG: platform/kyverno/admission/conformance-trigger-job-shape.yaml
is a fail-closed Enforce policy. It DENIES any conformance-trigger Job whose image is not
${IMAGE_REPO}@sha256:<digest>. A tag reference is denied,
and so is any other repository path.
TIGHTEN THE BOUNDARY AFTERWARDS: that policy's header asks for the wildcard
\`${IMAGE_REPO}@sha256:*\` to be replaced with the
LITERAL digest once the image exists, closing the "anyone who can push to this path" gap.
That is a separate, human-reviewed PR against the security boundary.
================================================================================
EOF
info "image id ${IMAGE_ID}"
info "size $(( SIZE / 1024 / 1024 )) MiB"
info "Not pushed. CI publishes this image from main (.gitea/workflows/images.yaml) and"
info "Renovate moves conformance/versions.env onto the registry-returned digest."
@@ -363,6 +363,54 @@ SCRAPE_OWNERS: list[dict] = [
"why": "velero_* powers VeleroBackupFailure / PartialFailure / NoRecentBackup — the rules "
"that failed to notice prod running with zero volume backups",
},
# ── ADDED 2026-10-17 (feat/automated-upgrades). A NEW OWNER, NOT A RELAXED ASSERTION. ──────
# This entry is purely additive: it registers a new metric family and its enablement, and it
# changes nothing about how any existing owner is evaluated. It makes the check STRICTER for the
# component it covers, not looser — it adds two `require` patterns plus a `companion` obligation
# that platform/kured must keep satisfying, so a future edit that disables kured's Service,
# ServiceMonitor or NetworkPolicy FAILS the gate instead of silently re-inerting three alerts.
#
# WHY THE CHECK HAD TO BE TOUCHED AT ALL, rather than the manifest being wrong: assertion (3)
# fails any alert over a metric no owner claims, and the escape hatch (KNOWN_UNWIRED_METRICS) is
# SHRINK-ONLY, so declaring `kured_*` as accepted debt is not permitted and would be the wrong
# answer anyway — the scrape genuinely IS wired here. The only two honest options were to
# register the owner (this) or to ship the reboot automation with no alerting at all, which for a
# component whose every failure mode is silent would have been the worse engineering choice.
# `conformance/**` is a sensitive approval path precisely so that this reasoning gets read.
{
"owner": "kured: service.create + metrics.create in the HelmRelease",
"prefixes": ("kured_",),
"file": "platform/kured/helmrelease.yaml",
# BOTH keys are required and the chart defaults BOTH to false. `metrics.create` makes the
# ServiceMonitor; `service.create` makes the Service it selects. Enable only the monitor and
# it selects nothing, so the single kured metric is never scraped — and a PrometheusRule over
# a series no target produces is INERT, which for this component means its own liveness
# alarm is the thing that breaks. Matched as two separate anchored blocks rather than one
# pattern because they are separate top-level values keys, not nested.
"require": [
r"service:\s*\n\s*create:\s*true",
r"metrics:\s*\n\s*create:\s*true",
],
"forbid": [],
"why": "kured_reboot_required is the ONLY metric kured exposes (one GaugeVec, "
"cmd/kured/main.go:92-96) and it powers all three platform-health.node-reboots "
"rules. Those rules are the only way to learn that OS reboot automation has stalled: "
"kured stays 1/1 Running while rebooting nothing, so a missed scrape here is "
"indistinguishable from a cluster that needed no reboots",
# The ServiceMonitor ALONE is not sufficient — the same NetworkPolicy trap Longhorn hit.
"companion": {
"file": "platform/kured/kustomization.yaml",
"require": [r"^\s*-\s*networkpolicy\.yaml\s*$"],
"why": "platform/kured/networkpolicy.yaml ships a default-deny baseline (the kured "
"namespace is a platform namespace, so Kyverno's app-namespace-scoped generator "
"does not cover it) AND the ingress allow that lets Prometheus reach :8080 "
"through it. Drop the networkpolicy from this kustomization and the deny-all "
"goes too, so this currently fails SAFE — but reinstating the baseline without "
"the allow reproduces Longhorn's measured failure exactly: targets DISCOVERED, "
"every scrape 'context deadline exceeded', TSDB empty, all three rules quiet. "
"Keeping the two in one file makes that pair inseparable",
},
},
]
# `up` is produced by EVERY scrape target, so no owner can meaningfully claim it and assertion (1)
@@ -29,7 +29,8 @@
# THEN (1) promtool is a PINNED member of the toolchain: PROMTOOL_VERSION is declared in BOTH
# infra/devcontainer/versions.env and ci/versions.env and the two AGREE (the repo's
# lockstep rule), the Containerfile takes it as a build ARG, installs it from the
# pinned prometheus release and records it for provenance, dev.sh passes it, and the
# pinned prometheus release and records it for provenance, build-image.sh (the one
# recipe `dev.sh build` and CI both use) passes it, and the
# CI runner installs it for the l0 stage;
# (2) the promtool ACTUALLY IN USE reports exactly that pinned version — a unit test is
# evidence only if the engine matches the one prod evaluates rules with;
@@ -246,10 +247,12 @@ check('echo "promtool=${PROMTOOL_VERSION}"' in cf_text,
"infra/devcontainer/Containerfile does not record promtool in /etc/dev-toolchain-versions — "
"that provenance line is how an operator tells a stale image from a current one")
DEVSH = ROOT / "infra/devcontainer/dev.sh"
check(DEVSH.is_file() and "--build-arg PROMTOOL_VERSION=" in DEVSH.read_text(),
"infra/devcontainer/dev.sh does not pass --build-arg PROMTOOL_VERSION — the ARG would be "
"empty and the build would fetch a bogus URL")
# The build recipe moved from dev.sh into build-image.sh on 2026-10-29, so that `dev.sh build`
# and the CI image pipeline (.gitea/workflows/images.yaml) share ONE recipe. Check the recipe.
BUILDSH = ROOT / "infra/devcontainer/build-image.sh"
check(BUILDSH.is_file() and '"PROMTOOL_VERSION=$PROMTOOL_VERSION"' in BUILDSH.read_text(),
"infra/devcontainer/build-image.sh does not pass PROMTOOL_VERSION in its BUILD_ARGS — the ARG "
"would be empty and the build would fetch a bogus URL")
INSTALL = ROOT / ".gitea/workflows/scripts/install-tools.sh"
if INSTALL.is_file():
@@ -445,8 +445,21 @@ join = re.search(r"--server https://\{\{\s*k3s_api_host", K3S_TEXT)
check(join is not None,
"roles/k3s_server does not join secondaries with `--server https://{{ k3s_api_host }}` "
"— without a join target the servers are separate single-node clusters")
join_when = re.search(r"--server https://.*?\n(?:.*\n){0,10}?\s*when:\s*k3s_server_mode\s*==\s*'secondary'",
K3S_TEXT, re.S)
# LINE-BOUNDED ON PURPOSE -- DO NOT "SIMPLIFY" BACK TO `.*` + re.S.
# This was `--server https://.*?\n(?:.*\n){0,10}?\s*when:...` with re.S, which made every `.`
# match newlines too. That is nested unbounded repetition (a `{0,10}` of a quantifier that can each
# swallow the whole document), so a FAILED or late match backtracks exponentially. It cost
# **19m54s of CPU in CI** (measured 2026-10-18 via `docker top` on the live job container) and made
# the whole merge gate take ~28 minutes instead of ~2 on any change touching `infra/**` -- because
# `ci/touched-requirements.sh` maps `infra/*` to R-ENV-01, which pulls in this whole-repo check.
# It was latent for as long as the regex existed and only crossed the threshold when
# roles/k3s_server grew by ~100 lines (the kubelet graceful-shutdown config, PR #71): K3S_TEXT is
# every *.yml in that role concatenated, so the role growing is the input growing.
# `[^\n]*` cannot cross a line, so the `{0,10}` is a genuine ten-line window with nothing to
# backtrack into. Measured on the same input: 0.2 ms, same verdict (match found).
join_when = re.search(
r"--server https://[^\n]*\n(?:[^\n]*\n){0,10}?[ \t]*when:[ \t]*k3s_server_mode[ \t]*==[ \t]*'secondary'",
K3S_TEXT)
check(join_when is not None,
"the join install task is not gated on k3s_server_mode == 'secondary' — the founder "
"would also try to join itself")
@@ -0,0 +1,108 @@
# =============================================================================
# L0 STATIC — the passkey configuration is derived from one declaration, continuously
# reconciled, and the browser login flow converges BLUE/GREEN: the BOUND flow is
# unwritable, and binding a new one is git's explicit decision (bind-browser-flow)
# Catalog: docs/14 L0 row ("Pre-apply, in CI") — runs WITHOUT a cluster.
#
# R-IDP-03 (identity config is declarative) and R-IDP-04 (MFA available) are both
# implemented through a mechanism that FAILS OPEN: the KeycloakRealmImport is a ONE-SHOT.
# Measured on prod 2026-10-18, hours after the passkey declaration merged:
#
# kubectl -n keycloak get keycloakrealmimport homelab -o jsonpath='{.status}'
# Done=True Started=False HasErrors=False
#
# Once it rests at Done=True the operator never re-runs it, so the WebAuthn passwordless
# policy and the restructured `browser-mfa` flow that keycloak-realm-import.yaml declares
# are INERT — in git, applied by Flux, reported Ready, reaching the realm never. Merging
# them changed nothing about how anyone logs in, and nothing anywhere said so.
# Declarative config that silently does not apply is not declarative config.
#
# GIVEN the repository as authored,
# THEN the reconciler's desired state is GENERATED from the realm import (so the RP ID —
# which is baked into every passkey at enrolment and can NEVER be re-keyed — is
# declared exactly once); both files are rendered by the SAME Flux Kustomization, so
# their ${BASE_DOMAIN} token cannot resolve to two values; the renderer's exported
# policy keys and the reconciler's writable keys are the SAME tuple; the realm
# import declares NO requiredActions block (26.0.6 treats it as REPLACE, which would
# delete CONFIGURE_TOTP and lock out every platform-admin); the enrolment action is
# enabled but NOT a defaultAction, so enrolment stays opt-in; the reconciler carries
# no ServiceAccount token, mounts only what it needs, passes no mode flag, and
# contains no dollar sign; the endpoint allow-list contains NO delete, NO
# single-execution or config-edit write, and NO required-action write for any alias
# other than the one named literally; the protected-subtree guard exists, is wired
# into the single request choke point and is fail-closed; the SIBLING client-secret
# reconciler's allow-list is NOT widened; and the reconciler's own `--selftest`
# (extracted from the shipped ConfigMap and executed) proves compare-then-write,
# idempotence, strict read-modify-write, the RpEntityName gate, the bound flow and
# its sub-flows unwritable, the git bind switch and a rollback that sticks, the
# conditional-OTP regression and fail-closed — with mutations.py proving that
# selftest can FAIL.
#
# WHY THE FLOW IS BUILT BLUE/GREEN AND BOUND ONLY ON GIT'S SAY-SO, asserted here rather
# than only argued: converging a five-flow, ten-execution restructure needs
# create-subflow, create-execution, set-requirement and bind-config as SEPARATE admin API
# calls with no transaction. Doing that to the BOUND flow means a run that dies between
# them leaves a HALF-BUILT FLOW AS THE LOGIN PATH for Grafana, Gitea, Nextcloud, Headlamp,
# Semaphore, PiHole, Crafty, the *arr stack AND kubectl — this repo has had a total SSO
# outage from a realm change (2026-09-06), and the conditional-OTP sub-flow once 403'd
# every platform-admin. So every multi-call write lands on a NEW, unused candidate flow,
# which is verified by readback before anything is bound. Binding it is then ONE atomic
# PUT of browserFlow, made only when passkey-desired-state.yaml sets
# bind-browser-flow: "true" (default "false"): an untested login flow never goes live on
# a schedule tick, and with the switch off an operator's rollback is never undone.
#
# STATUS: EXECUTABLE. `check.sh` is a pure offline assertion script (git + PyYAML +
# stdlib); conformance/run.sh --layer l0 and ci/l0.sh run it directly, and this Chainsaw
# Test wraps the SAME script.
#
# NOT proven here: that the LIVE realm's policy, enrolment action or browser flow match
# git (that is cluster state — the reconciler's `--audit` mode is the read-only probe for
# it, and NO L2 test is added by this change, so the live realm is UNVERIFIED by CI);
# that a passkey ceremony actually completes or that the ALTERNATIVE fork degrades to the
# password form (needs a real browser against a real realm); that the five flow-building
# admin-API calls behave against a live Keycloak the way the 26.0.6 source says they do
# (every proof here is against an in-process stub); or that the CronJob's schedule fires.
# =============================================================================
apiVersion: chainsaw.kyverno.io/v1alpha1
kind: Test
metadata:
name: keycloak-passkey-reconciler
labels:
conformance.home.k3s/R-IDP-03: "true"
conformance.home.k3s/R-IDP-04: "true"
annotations:
conformance.home.k3s/requirements: "R-IDP-03, R-IDP-04"
conformance.home.k3s/layer: "L0"
# WHOLE-REPO SCOPE, for the same reason the sibling keycloak-client-secret-reconciler
# check declares it: this invariant spans platform/ (the realm import, the reconciler,
# the generated desired state), platform-config/ (which Flux Kustomization renders
# them, and therefore which substitution pass they share), ci/ (the renderer) and
# clusters/ (that both are reachable from both entrypoints). A change that breaks it
# need not attribute R-IDP-03/04 at all, and the requirement-scoped selection would
# then filter this check out of exactly the change that introduces the bug — which is
# how 12 unusable prod OIDC clients sat behind an entirely green cluster on
# 2026-09-06.
conformance.home.k3s/scope: "whole-repo"
# Not safety-critical in the harness's sense (it mutates nothing and needs no
# cluster), but it guards a component that holds WRITE access to the identity
# provider's realm settings.
conformance.home.k3s/safety-critical: "false"
conformance.home.k3s/executable: "true"
conformance.home.k3s/intent: >-
The realm's passkey configuration — policy, enrolment action AND browser login
flow — is declared once in the realm import, derived from it by a gated renderer,
and continuously reconciled; the flow converges blue/green, so a one-shot import
that never re-runs can neither leave the configuration inert nor let a reconciler
half-rewrite the login path of the whole platform.
spec:
steps:
- name: audit-passkey-declaration-renderer-and-reconciler
description: >-
Assert the desired state is derived from the realm import and shares its
substitution pass, that the reconciler cannot write the bound flow or delete
anything and binds only on git's bind-browser-flow, that the sibling reconciler
is unwidened, and run the reconciler's own selftest plus the mutation suite that
proves it can fail.
try:
- script:
content: bash ./check.sh
@@ -0,0 +1,754 @@
#!/usr/bin/env bash
# =============================================================================
# L0 static check (offline, no cluster) — keycloak-passkey-reconciler
# Serves: R-IDP-03 ("Identity config (realms, clients, groups, roles) is declarative."
# — spec docs/15-identity-and-access.md)
# R-IDP-04 ("IdP secrets SOPS-encrypted; MFA available."
# — spec docs/15-identity-and-access.md)
#
# WHY THIS EXISTS — THE REALM IMPORT IS A ONE-SHOT THAT FAILS OPEN
# ---------------------------------------------------------------
# platform/keycloak/keycloak-realm-import.yaml declares the WebAuthn PASSWORDLESS
# policy and a restructured `browser-mfa` browser flow. Measured on prod 2026-10-18,
# hours after that declaration merged:
#
# kubectl -n keycloak get keycloakrealmimport homelab -o jsonpath='{.status}'
# Done=True Started=False HasErrors=False
#
# A KeycloakRealmImport is a ONE-SHOT. Once it rests at Done=True the operator never
# re-runs it, so every realm-level field and every flow declared after the FIRST
# import is inert — in git, applied by Flux, reported Ready, reaching the realm
# never. The same shape as the 2026-09-06 client-secret incident (12 prod clients
# holding the literal `(env:...)` placeholder behind an entirely green cluster), and
# the same fix: a level-triggered reconciler. This check is the static half.
#
# THE RECONCILER HOLDS WRITE ACCESS TO THE IDENTITY PROVIDER. That is the reason this
# check is unusually thorough about its BLAST RADIUS rather than only its behaviour.
#
# GIVEN the repository as authored,
# THEN (1) THE DESIRED STATE IS DERIVED, NOT DECLARED TWICE: the reconciler's input
# (platform/keycloak/passkey-desired-state.yaml) is GENERATED from the realm
# import by ci/render-keycloak-passkey-policy.py, and this check RUNS the
# renderer with --check, so a hand edit that makes the two disagree is
# unmergeable. The RP ID is the sharpest case: it is baked into every passkey
# at enrolment and can NEVER be re-keyed, so two declarations that can skew
# about the domain is an unrecoverable-credential bug, not a cosmetic one.
# (2) BOTH FILES ARE RENDERED BY THE SAME FLUX KUSTOMIZATION.
# postBuild.substituteFrom is per-Kustomization, so a split would let the
# ${BASE_DOMAIN} token in the realm import and the one in the desired state
# resolve to two different values — and an RP ID mismatch invalidates every
# enrolled passkey with no error the user can act on.
# (3) THE DESIRED STATE USES NO SUBSTITUTION TOKEN THE REALM IMPORT DOES NOT, and
# declares no realm key outside the reconciler's write surface.
# (4) THE TWO WRITE SURFACES AGREE: the renderer's exported policy keys and the
# reconciler's POLICY_FIELDS are the SAME tuple. If they drifted, the renderer
# could emit a key the reconciler refuses (fail-closed forever) or the
# reconciler could accept a key the renderer never emits (dead surface).
# (5) THE RECONCILER MANIFEST IS SAFE AND WIRED: reconciled from BOTH cluster
# entrypoints, mounts exactly the ConfigMaps its code defaults to, carries NO
# ServiceAccount token, and contains no dollar sign (it ships inside a
# SUBSTITUTED Flux path, where an unescaped dollar-brace expansion is
# rewritten before any container runs).
# (6) THE CURRENTLY BOUND FLOW IS STRUCTURALLY UNWRITABLE — asserted against the
# SOURCE, not the comments. The flow converges BLUE/GREEN (build under a new
# alias, verify, flip browserFlow in one atomic PUT), so flow-create and
# execution-add endpoints ARE on the allow-list and their presence is not the
# hazard. What is asserted instead: nothing is DELETABLE (the superseded flow
# is the rollback target); the execution- and config-id-scoped write endpoints
# stay off the list because they carry no flow alias and so cannot be screened;
# no required-action write reaches any alias but the one named literally; and
# the guard the allow-list CANNOT express exists in the source and is wired
# into the single request choke point, FAIL-CLOSED until the live binding has
# been read. That last one is what the whole design rests on: a reconciler that
# half-rewrites the BOUND browser flow is a total SSO outage on a loop, and
# this repo has had one (2026-09-06).
# (6b) THE BIND IS GIT'S DECISION: the desired-state ConfigMap carries
# bind-browser-flow as exactly "true" or "false", the script reads it from the
# SAME mount, and the CronJob passes no flag that could widen it. With "false"
# (the default) the reconciler builds and verifies but never PUTs browserFlow,
# so an operator's rollback sticks; the selftest proves that end to end.
# (7) THE SIBLING RECONCILER IS UNTOUCHED: client-secret-reconciler.yaml's
# allow-list is NOT widened by this work. Its --selftest asserts it refuses
# /users, /groups, /roles, /authentication and the whole-realm endpoint, and
# its guarantee that prod's real user and the media-users / platform-admins /
# viewers groups survive every run must stay LITERALLY true.
# (8) THE RECONCILER'S BEHAVIOUR IS PROVEN, NOT ASSERTED: this check EXTRACTS the
# script from the ConfigMap and executes its `--selftest`, which drives the
# real code paths against an in-process stub Keycloak that MODELS the three
# Keycloak 26.0.6 behaviours that bite — the RpEntityName gate on the
# passwordless policy, the all-or-nothing policy rebuild that defaults every
# omitted key, and the required-action representation replace.
# (8b) AND THAT PROOF IS FALSIFIABLE: mutations.py injects plausible regressions
# one at a time and requires --selftest to CATCH every one. A passing suite
# proves nothing if it cannot fail, and "reported success while the realm was
# broken" is the exact failure this component exists to end.
# AND (9) THIS CHECK IS LOAD-BEARING: it DECLARES
# `conformance.home.k3s/scope: whole-repo` so ci/l0.sh runs it unconditionally
# via --include-scope, ci/gate.sh blocks the merge when the l0 stage fails, and
# ci/touched-requirements.sh maps platform/keycloak/ to these requirement IDs.
# An unreferenced test is precisely the "looks applied and isn't" failure this
# repo keeps hitting.
#
# NOT proven here (named honestly, in the style of the sibling L0 checks):
# - that the LIVE realm's policy, enrolment action or browser flow match git. That is
# cluster state. The reconciler's own `--audit` mode is the read-only probe for it
# and is what an L2 test should run; no such L2 test is added by this change, so the
# live realm is UNVERIFIED by CI.
# - that the declared browser flow actually WORKS as a login path. Nothing offline can
# prove that a passkey ceremony completes, that the ALTERNATIVE fork degrades to the
# password form, or that a platform-admin is still asked for TOTP. Those need a real
# browser against a real realm.
# - that the reconciler's first real run against prod will succeed. The flow is built
# through five admin-API endpoints whose request shapes were read from the 26.0.6
# source but never exercised against a live Keycloak.
# - that the admin credential decrypts to a usable password. Key PRESENCE is checkable
# offline; the plaintext is not, and must not be.
# - that the CronJob's image can be pulled or its schedule fires.
# =============================================================================
set -euo pipefail
DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ROOT="$(cd "${DIR}/../../../.." && pwd)" # repo root
PYTHON="${PYTHON:-python3}"
IMPORT_FILE="platform/keycloak/keycloak-realm-import.yaml"
RECON_FILE="platform/keycloak/passkey-reconciler.yaml"
STATE_FILE="platform/keycloak/passkey-desired-state.yaml"
RENDERER="ci/render-keycloak-passkey-policy.py"
SIBLING_FILE="platform/keycloak/client-secret-reconciler.yaml"
# Honest SKIP (never green) if the thing under test is absent entirely.
for f in "$IMPORT_FILE" "$RECON_FILE" "$STATE_FILE" "$RENDERER"; do
if [ ! -f "${ROOT}/${f}" ]; then
echo "check SKIPPED: ${f} absent — nothing to audit" >&2
exit 3
fi
done
cd "${ROOT}"
"${PYTHON}" - "${ROOT}" <<'PY'
"""Static audit of the Keycloak passkey declaration, the renderer that derives the
reconciler's desired state from it, and the reconciler's blast radius. PyYAML parses the
manifests; lib/status.py is IMPORTED for the Flux graph walk rather than forked, so there
is one definition of "what a Flux path renders" in the harness."""
from __future__ import annotations
import ast
import json
import re
import subprocess
import sys
import tempfile
from pathlib import Path
import yaml
ROOT = Path(sys.argv[1])
# This body is fed to `python3 -` on stdin, so there is no __file__ to derive from; the
# test directory is named relative to the repo root the wrapper passes in.
DIR_PATH = (ROOT / "conformance" / "tests" / "l0-static"
/ "keycloak-passkey-reconciler")
sys.path.insert(0, str(ROOT / "conformance" / "lib"))
import status as st # noqa: E402
IMPORT_FILE = "platform/keycloak/keycloak-realm-import.yaml"
RECON_FILE = "platform/keycloak/passkey-reconciler.yaml"
STATE_FILE = "platform/keycloak/passkey-desired-state.yaml"
RENDERER = "ci/render-keycloak-passkey-policy.py"
SIBLING_FILE = "platform/keycloak/client-secret-reconciler.yaml"
STATE_CM_NAME = "keycloak-passkey-desired-state"
STATE_DATA_KEY = "passkey-desired-state.json"
BIND_KEY = "bind-browser-flow"
SCRIPT_KEY = "reconcile-keycloak-passkeys.py"
ENROL_ACTION = "webauthn-register-passwordless"
DOLLAR = chr(36)
failures: list[str] = []
def check(cond, msg):
if not cond:
failures.append(msg)
def load(rel):
return list(yaml.safe_load_all((ROOT / rel).read_text()))
# ================================================== (1) the desired state is DERIVED
proc = subprocess.run([sys.executable, str(ROOT / RENDERER), "--check"],
capture_output=True, text=True, timeout=120)
check(proc.returncode == 0,
f"{STATE_FILE} has DRIFTED from {IMPORT_FILE} (ci/render-keycloak-passkey-policy"
f".py --check failed). The reconciler would converge the realm on a passkey policy "
f"the realm import does not declare, and audit the login flow against a tree "
f"nobody authored. The RP ID is the sharpest case: it is baked into every passkey "
f"at enrolment and can NEVER be re-keyed, so two declarations that skew about the "
f"domain is an unrecoverable-credential bug.\n "
+ "\n ".join((proc.stdout + proc.stderr).strip().splitlines()[-12:]))
# The realm import must actually declare the things the renderer derives from. If it
# stops, the renderer fails -- but say so HERE too, because a SKIP-shaped failure in the
# renderer would otherwise be the only signal.
imp_docs = [d for d in load(IMPORT_FILE) if d]
imp = next((d for d in imp_docs if d.get("kind") == "KeycloakRealmImport"), None)
check(imp is not None, f"{IMPORT_FILE}: no KeycloakRealmImport document")
realm = ((imp or {}).get("spec") or {}).get("realm") or {}
policy_keys_in_import = sorted(k for k in realm
if k.startswith("webAuthnPolicyPasswordless"))
check(policy_keys_in_import,
f"{IMPORT_FILE} declares no webAuthnPolicyPasswordless* field, so there is no "
f"passkey policy for the reconciler to converge")
check(realm.get("browserFlow"),
f"{IMPORT_FILE} declares no spec.realm.browserFlow — a perfect flow that is not "
f"BOUND changes nothing about how anyone logs in")
# THE requiredActions TRAP, enforced rather than only commented. The realm import's own
# header explains it at length: Keycloak 26.0.6 treats requiredActions in a realm
# representation as REPLACE, not merge, so declaring ONE action imports exactly that
# action plus delete_account and skips DefaultRequiredActions.addActions entirely --
# deleting CONFIGURE_TOTP, UPDATE_PASSWORD, VERIFY_EMAIL and seven more. Losing
# CONFIGURE_TOTP is a hard lock-out of every platform-admin, because auth-otp-form in the
# browser flow still demands a TOTP they could then never enrol. The comment saying "DO
# NOT ADD ONE" is advice; this is the gate.
check("requiredActions" not in realm,
f"{IMPORT_FILE} declares spec.realm.requiredActions. Keycloak 26.0.6 treats that "
f"as REPLACE, not merge: declaring any action imports exactly those plus "
f"delete_account and NEVER runs DefaultRequiredActions.addActions, so "
f"CONFIGURE_TOTP, UPDATE_PASSWORD, VERIFY_EMAIL and seven more are DELETED. That "
f"is a permanent lock-out of every platform-admin, because auth-otp-form in this "
f"realm's browser flow still demands a TOTP they could no longer enrol. The "
f"enrolment action is already registered by default (priority 80, enabled, "
f"defaultAction false) and the passkey reconciler converges it through the "
f"per-alias admin API, which has no such hazard")
# ============================== (2)(3) the two files share one substitution pass
state_docs = [d for d in load(STATE_FILE) if d]
state_cm = next((d for d in state_docs if d.get("kind") == "ConfigMap"), None)
check(state_cm is not None, f"{STATE_FILE}: no ConfigMap")
desired = {}
if state_cm is not None:
check(state_cm["metadata"]["name"] == STATE_CM_NAME,
f"{STATE_FILE}: the ConfigMap is named "
f"{state_cm['metadata']['name']!r}, but the CronJob mounts {STATE_CM_NAME!r}")
data = state_cm.get("data") or {}
check(sorted(data) == sorted([STATE_DATA_KEY, BIND_KEY]),
f"{STATE_FILE}: expected exactly the data keys {STATE_DATA_KEY!r} and "
f"{BIND_KEY!r}, got {sorted(data)} — the reconciler's PASSKEY_STATE_FILE / "
f"PASSKEY_BIND_FILE defaults would not resolve")
# THE BIND SWITCH. An unquoted true/false is a YAML BOOLEAN, which a ConfigMap rejects
# at apply time -- failing the whole platform-config Kustomization, realm import
# included. The renderer refuses it too; asserted here so the reason is on record.
check(data.get(BIND_KEY) in ("true", "false"),
f"{STATE_FILE}: data.{BIND_KEY} is {data.get(BIND_KEY)!r}; it must be the QUOTED "
f"string \"true\" or \"false\"")
raw = data.get(STATE_DATA_KEY, "")
try:
desired = json.loads(raw)
except ValueError as e:
check(False, f"{STATE_FILE}: the {STATE_DATA_KEY} payload is not valid JSON "
f"({e}) — the reconciler would fail closed on every run")
# Both files must be rendered by ONE Flux Kustomization. substituteFrom is
# per-Kustomization, so a split lets the same ${BASE_DOMAIN} token resolve to two
# different values -- and an RP ID mismatch invalidates every enrolled passkey silently.
import_owners = set()
state_owners = set()
recon_owners = set()
for env in ("dev", "prod"):
entry = f"clusters/{env}"
if not (ROOT / entry).is_dir():
continue
applied, _ = st.reconciled_files(ROOT, entry)
check(RECON_FILE in applied,
f"{RECON_FILE} is not reachable from the {entry} entrypoint — the passkey "
f"healer would exist on one cluster only")
check(STATE_FILE in applied,
f"{STATE_FILE} is not reachable from the {entry} entrypoint — the reconciler "
f"would fail closed on that cluster forever")
check(IMPORT_FILE in applied, f"{IMPORT_FILE} is not reachable from {entry}")
# Which Kustomization DIRECTORY lists each file. Asserted structurally: both must be
# listed as resources of the same kustomization.yaml.
for kpath in ROOT.glob("*/kustomization.yaml"):
try:
k = yaml.safe_load(kpath.read_text()) or {}
except Exception:
continue
res = [str(r) for r in (k.get("resources") or [])]
base = kpath.parent.name
if any(r.endswith("keycloak-realm-import.yaml") for r in res):
import_owners.add(base)
if any(r.endswith("passkey-desired-state.yaml") for r in res):
state_owners.add(base)
if any(r.endswith("passkey-reconciler.yaml") for r in res):
recon_owners.add(base)
check(import_owners and import_owners == state_owners,
f"{IMPORT_FILE} is rendered by {sorted(import_owners)} but {STATE_FILE} by "
f"{sorted(state_owners)}. They MUST be the same Flux Kustomization: "
f"postBuild.substituteFrom is per-Kustomization, so a split would let the "
f"{DOLLAR}{{BASE_DOMAIN}} token in each resolve to a different value. An RP ID is "
f"baked into every passkey at enrolment and can never be re-keyed, so a domain the "
f"two files disagree about is an unrecoverable credential, not a cosmetic drift")
check(recon_owners == state_owners,
f"{RECON_FILE} is rendered by {sorted(recon_owners)} but its desired state by "
f"{sorted(state_owners)} — the reconciler could be applied without its input")
# (3) no substitution token the realm definition does not also use.
import_text = (ROOT / IMPORT_FILE).read_text()
TOKEN = re.compile(re.escape(DOLLAR) + r"\{([A-Za-z_][A-Za-z0-9_]*)")
state_tokens = set(TOKEN.findall((ROOT / STATE_FILE).read_text()))
import_tokens = set(TOKEN.findall(import_text))
# The renderer's own HEADER mentions ${BASE_DOMAIN} in prose; that is the same token the
# policy uses, so a subset check is the right assertion rather than an exact match.
check(state_tokens <= import_tokens,
f"{STATE_FILE} uses substitution token(s) {sorted(state_tokens - import_tokens)} "
f"that {IMPORT_FILE} does not. A token the realm definition never uses is either a "
f"hand edit or a renderer bug, and an UNDEFINED one renders as the EMPTY STRING "
f"silently — which for an RP ID means every passkey ceremony fails")
# ======================================= (4) the two write surfaces are the SAME tuple
recon_docs = [d for d in load(RECON_FILE) if d]
cm = next((d for d in recon_docs if d.get("kind") == "ConfigMap"), None)
cj = next((d for d in recon_docs if d.get("kind") == "CronJob"), None)
check(cm is not None, f"{RECON_FILE}: no ConfigMap carrying the reconciler script")
check(cj is not None, f"{RECON_FILE}: no CronJob running the reconciler")
script = ""
if cm is not None:
data = cm.get("data") or {}
check(len(data) == 1,
f"{RECON_FILE}: the reconciler ConfigMap must carry exactly one script key "
f"(found {sorted(data)}) — a second copy would be untested by this gate")
check(SCRIPT_KEY in data,
f"{RECON_FILE}: expected the script under {SCRIPT_KEY!r}, got {sorted(data)}")
script = next(iter(data.values()), "")
check(len(script.splitlines()) > 200,
f"{RECON_FILE}: the extracted script is implausibly short "
f"({len(script.splitlines())} lines) — the ConfigMap shape changed and the "
f"selftest below would prove nothing")
# THE nextcloud TRAP. This file is rendered by a Flux Kustomization with
# postBuild.substituteFrom, so envsubst rewrites it before any container runs.
check(DOLLAR not in script,
f"{RECON_FILE}: the reconciler script contains a dollar sign. It ships inside "
f"a SUBSTITUTED Flux path, where a dollar-brace expansion is rewritten at "
f"reconcile time (see apps/wave-1/nextcloud.yaml). Rewrite without it — Python "
f"never needs one; chr(36) spells it where a literal is genuinely required")
def tuple_literal(src, name):
"""The value of a module-level tuple assignment, via ast. Parsing the SOURCE rather
than importing it keeps this check offline and side-effect free, and means the thing
asserted is the text that ships."""
try:
tree = ast.parse(src)
except SyntaxError:
return None
for node in tree.body:
if isinstance(node, ast.Assign):
for t in node.targets:
if isinstance(t, ast.Name) and t.id == name:
try:
return ast.literal_eval(node.value)
except ValueError:
return None
return None
renderer_src = (ROOT / RENDERER).read_text()
# POLICY_FIELDS is a CONCATENATION of other tuples in both files, so literal_eval of the
# assignment itself cannot evaluate it. Resolve it from its parts instead. Both files name
# their parts from the same vocabulary; a part present in one and not the other simply
# contributes nothing, which is why the comparison below is of the resolved SETS.
def resolve_policy(src):
parts = ("POLICY_STR_FIELDS", "POLICY_ORDERED_LIST_FIELDS",
"POLICY_UNORDERED_LIST_FIELDS", "POLICY_LIST_FIELDS", "POLICY_INT_FIELDS",
"POLICY_BOOL_FIELDS")
out = []
for p in parts:
v = tuple_literal(src, p)
if v:
out.extend(v)
return sorted(set(out))
recon_keys = resolve_policy(script)
rend_keys = resolve_policy(renderer_src)
check(recon_keys and recon_keys == rend_keys,
f"the reconciler's writable policy keys {recon_keys} and the renderer's exported "
f"keys {rend_keys} DISAGREE. If the renderer emits a key the reconciler refuses, "
f"every run fails closed forever; if the reconciler accepts a key the renderer "
f"never emits, that is dead write surface on the identity provider")
# Every exported key must actually be a passwordless key. The two-factor
# webAuthnPolicy* family is a silent no-op for passkeys (the passwordless authenticator
# reads getWebAuthnPolicyPasswordless() only), so exporting one would be a write surface
# with no effect.
check(all(k.startswith("webAuthnPolicyPasswordless") for k in recon_keys),
f"the reconciler's writable keys include a non-passwordless field: "
f"{[k for k in recon_keys if not k.startswith('webAuthnPolicyPasswordless')]}. "
f"The two-factor webAuthnPolicy* family is never consulted by a passkey login, so "
f"writing it is a silent no-op")
# And the desired state must declare only those.
if isinstance(desired.get("webAuthnPolicyPasswordless"), dict):
extra = sorted(set(desired["webAuthnPolicyPasswordless"]) - set(recon_keys))
check(not extra,
f"{STATE_FILE} declares policy key(s) {extra} outside the reconciler's write "
f"surface — it would fail closed on every run")
# The 26.0.6 gate: the policy is applied ONLY when RpEntityName is non-empty.
check(desired["webAuthnPolicyPasswordless"].get(
"webAuthnPolicyPasswordlessRpEntityName"),
f"{STATE_FILE} carries no non-empty "
f"webAuthnPolicyPasswordlessRpEntityName. Keycloak 26.0.6 applies the "
f"passwordless policy only when that field is set "
f"(DefaultExportImportManager.updateRealm), so every realm PUT would be "
f"accepted with 204 and change nothing")
# THE ENROLMENT POSTURE. defaultAction true would force every user to enrol a passkey at
# next login -- a platform-wide lock-out risk, and the exact opposite of the realm
# import's stated "additive and optional" decision. It is one boolean, so it is gated.
ra = desired.get("requiredAction") or {}
check(ra.get("alias") == ENROL_ACTION,
f"{STATE_FILE}: requiredAction.alias is {ra.get('alias')!r}, expected "
f"{ENROL_ACTION!r} — the reconciler's allow-list names that alias literally, so "
f"any other value is unreachable and the pass would fail closed")
check(ra.get("enabled") is True,
f"{STATE_FILE}: requiredAction.enabled must be true, else passkey ENROLMENT is "
f"impossible while the login flow offers passkeys")
check(ra.get("defaultAction") is False,
f"{STATE_FILE}: requiredAction.defaultAction is {ra.get('defaultAction')!r}, which "
f"must be false. True forces EVERY user to enrol a passkey at next login — this "
f"IdP gates Grafana, Gitea, Nextcloud, Headlamp, Semaphore, PiHole, Crafty, the "
f"*arr stack AND kubectl, so a misfiring mandatory enrolment is a total platform "
f"lock-out. The realm import's whole stated posture is additive and OPTIONAL")
# ========================================= (5) the reconciler manifest is safe + wired
if cj is not None:
pod = cj["spec"]["jobTemplate"]["spec"]["template"]["spec"]
ctr = pod["containers"][0]
vols = {v["name"]: v for v in pod.get("volumes", [])}
mounts = {m["name"]: m for m in ctr.get("volumeMounts", [])}
env = {e["name"]: e for e in ctr.get("env", [])}
# NO KUBERNETES API ACCESS. This is what makes the mounted-ConfigMap design strictly
# narrower than reading the KeycloakRealmImport CR through the API: no Role, no
# RoleBinding, no token. It is also why this change adds no **/rbac.yaml.
check(pod.get("automountServiceAccountToken") is False,
f"{RECON_FILE}: the reconciler must set automountServiceAccountToken: false. "
f"It talks only to the Keycloak admin API and reads a mounted ConfigMap, so a "
f"ServiceAccount token is pure blast radius (R-SEC-02)")
check("serviceAccountName" not in pod,
f"{RECON_FILE}: the reconciler must not name a ServiceAccount")
cm_vols = {n: v for n, v in vols.items() if "configMap" in v}
names = {(v["configMap"] or {}).get("name") for v in cm_vols.values()}
check(STATE_CM_NAME in names,
f"{RECON_FILE}: the CronJob does not mount the {STATE_CM_NAME} ConfigMap, so "
f"the reconciler would fail closed on every run. Mounted: {sorted(names)}")
check(cm["metadata"]["name"] in names,
f"{RECON_FILE}: the CronJob does not mount its own script ConfigMap")
# NO SECRET IS MOUNTED AS A VOLUME. The admin credential is consumed via
# secretKeyRef only; projecting it as a file would widen what a readable mount leaks.
check(not [v for v in vols.values() if "secret" in v],
f"{RECON_FILE}: the reconciler mounts a Secret as a volume. The admin "
f"credential is referenced by secretKeyRef only; it must never be projected "
f"as a file here")
# The mount paths must be the ones the code DEFAULTS to, or the container starts and
# fails closed forever while every manifest looks correct.
state_vol = next((n for n, v in cm_vols.items()
if (v["configMap"] or {}).get("name") == STATE_CM_NAME), None)
if state_vol:
mp = (mounts.get(state_vol) or {}).get("mountPath")
check(mp == "/etc/keycloak-passkey",
f"{RECON_FILE}: the desired-state ConfigMap is mounted at {mp!r}, but the "
f"script's PASSKEY_STATE_FILE default is "
f"/etc/keycloak-passkey/{STATE_DATA_KEY}")
check(f'"/etc/keycloak-passkey/{STATE_DATA_KEY}"' in script,
f"{RECON_FILE}: the script's PASSKEY_STATE_FILE default no longer matches "
f"the mount path — they are a pair and must move together")
check((mounts.get(state_vol) or {}).get("readOnly") is True,
f"{RECON_FILE}: the desired-state mount must be readOnly")
check(f'"/etc/keycloak-passkey/{BIND_KEY}"' in script,
f"{RECON_FILE}: the script's PASSKEY_BIND_FILE default is not "
f"/etc/keycloak-passkey/{BIND_KEY}. An unresolved bind file reads as \"false\" "
f"(safe, but git's \"true\" would then silently never take effect)")
check(not (state_vol and (cm_vols[state_vol]["configMap"] or {}).get("items")),
f"{RECON_FILE}: the desired-state volume selects `items`, so one of its two "
f"keys may not be projected")
# The bind decision belongs to git. A container arg could only NARROW it today
# (--no-bind), but nothing in the CronJob may carry a mode flag at all: the shipped
# behaviour must be readable from passkey-desired-state.yaml alone.
cmd = [str(x) for x in (ctr.get("command") or []) + (ctr.get("args") or [])]
check(not [x for x in cmd if x.startswith("--")],
f"{RECON_FILE}: the CronJob passes {[x for x in cmd if x.startswith('--')]} to "
f"the reconciler. Its mode is decided by git (bind-browser-flow), not by flags")
# Retries burn the bounded candidate-alias budget on a deterministic failure.
check(cj["spec"]["jobTemplate"]["spec"].get("backoffLimit") == 0,
f"{RECON_FILE}: backoffLimit must be 0 — every failure here is deterministic "
f"within a tick, and each retried build consumes another candidate alias")
# The admin credential, referenced BY NAME. Never decrypted, never a literal.
for key in ("KEYCLOAK_ADMIN_USER", "KEYCLOAK_ADMIN_PASSWORD"):
e = env.get(key) or {}
ref = ((e.get("valueFrom") or {}).get("secretKeyRef") or {})
check(ref.get("name") == "keycloak-admin-credentials",
f"{RECON_FILE}: {key} must come from the keycloak-admin-credentials "
f"Secret by secretKeyRef, got {e!r}")
check("value" not in e,
f"{RECON_FILE}: {key} carries a literal `value`. A credential in a "
f"manifest is a plaintext secret in git")
check((env.get("KEYCLOAK_REALM") or {}).get("value") == desired.get("realm"),
f"{RECON_FILE}: KEYCLOAK_REALM is "
f"{(env.get('KEYCLOAK_REALM') or {}).get('value')!r} but the desired state "
f"declares realm {desired.get('realm')!r}. The reconciler would converge the "
f"wrong realm, or none")
check(ctr["securityContext"]["readOnlyRootFilesystem"] is True,
f"{RECON_FILE}: readOnlyRootFilesystem must be true")
check(ctr["securityContext"]["allowPrivilegeEscalation"] is False,
f"{RECON_FILE}: allowPrivilegeEscalation must be false")
check(pod["securityContext"].get("runAsNonRoot") is True,
f"{RECON_FILE}: runAsNonRoot must be true")
check(cj["spec"].get("concurrencyPolicy") == "Forbid",
f"{RECON_FILE}: concurrencyPolicy must be Forbid — two concurrent reconcilers "
f"would double the write attempts against the IdP during an outage recovery")
check(re.fullmatch(r"\S+ \S+ \S+ \S+ \S+", cj["spec"].get("schedule", "")),
f"{RECON_FILE}: schedule {cj['spec'].get('schedule')!r} is not a 5-field cron")
# ===== (6) THE BOUND FLOW IS STRUCTURALLY UNWRITABLE — asserted against the SOURCE
#
# This component converges the browser flow BLUE/GREEN: it builds the target structure
# under a NEW, unused alias, verifies it, then flips the realm's browserFlow in ONE
# atomic PUT. It therefore NEEDS flow-create and execution-add endpoints, so unlike the
# first design of this check the mere presence of a flow write is no longer the thing to
# forbid. What must hold instead is narrower and stronger:
#
# (a) nothing may be DELETED, ever — the superseded flow is the rollback target;
# (b) the single-execution and config-edit endpoints stay off the list — requirements
# are set through the flow-scoped endpoint, which the guard in (d) screens;
# (c) no required-action write may reach any alias but the one named LITERALLY;
# (d) and the guard the allow-list CANNOT express must exist in the source: a
# method-aware screen that refuses any flow write targeting the CURRENTLY BOUND
# flow's subtree, FAIL-CLOSED until that binding has been read.
#
# (d) is the load-bearing one. Without it the reconciler could mutate the flow users are
# logging in through, and a run dying mid-restructure would leave a HALF-BUILT FLOW BOUND
# AS THE LOGIN PATH for Grafana, Gitea, Nextcloud, Headlamp, Semaphore, PiHole, Crafty,
# the *arr stack AND kubectl. This repo has already had a total SSO outage from a realm
# change (2026-09-06).
allow = tuple_literal(script, "_ALLOWED") or ()
check(bool(allow),
f"{RECON_FILE}: could not parse the _ALLOWED endpoint allow-list out of the "
f"script. This check's central assertions about the write surface cannot be made, "
f"so it must FAIL rather than pass silently")
if allow:
check(all(isinstance(e, tuple) and len(e) == 2 for e in allow),
f"{RECON_FILE}: _ALLOWED is not a tuple of (method, path) pairs. A path-only "
f"allow-list cannot distinguish reading a flow from writing one, which this "
f"component's whole safety argument rests on")
writes = [(m, p) for m, p in allow if m in ("PUT", "POST", "PATCH", "DELETE")]
# (a) nothing is ever deleted.
check(not [(m, p) for m, p in allow if m == "DELETE"],
f"{RECON_FILE}: the allow-list contains a DELETE method. Nothing this program "
f"does requires deleting anything: a superseded flow is left unbound as the "
f"ROLLBACK TARGET, and DELETE /admin/realms/<realm> deletes the realm")
# (b) the endpoints that would let it edit live objects in place.
banned = [(m, p) for m, p in writes
if re.fullmatch(r"/admin/realms/\[\^/\]\+/authentication/executions/"
r"\[\^/\]\+", p)
or re.fullmatch(r"/admin/realms/\[\^/\]\+/authentication/config/\[\^/\]\+",
p)
or p.endswith("/authentication/register-required-action")]
check(not banned,
f"{RECON_FILE}: the allow-list permits {banned}. The single-execution update "
f"and config-edit endpoints must stay off it: requirements are set through the "
f"FLOW-SCOPED endpoint, which carries the flow alias in its path and is "
f"therefore screenable against the bound subtree. An execution- or "
f"config-id-scoped write is not, so it would be an unscreened hole")
# (c) no required-action write may reach any other alias.
ra_writes = [(m, p) for m, p in writes if "required-actions" in p]
check(all(p.endswith("required-actions/" + ENROL_ACTION) for _, p in ra_writes),
f"{RECON_FILE}: the allow-list permits a required-action write to an alias "
f"other than {ENROL_ACTION!r}: {ra_writes}. Disabling CONFIGURE_TOTP is a "
f"permanent lock-out of every platform-admin, because auth-otp-form in the "
f"browser flow still demands a TOTP that could no longer be enrolled")
check(not [p for _, p in ra_writes if "[^/]+" in p.split("required-actions/")[-1]],
f"{RECON_FILE}: a required-action write path uses a WILDCARD alias. The alias "
f"must be named LITERALLY so no other action is writable by construction")
# Nothing outside the realm + authentication surface at all.
stray = [(m, p) for m, p in allow
if "/users" in p or "/groups" in p or "/roles" in p or "/clients" in p]
check(not stray,
f"{RECON_FILE}: the allow-list reaches {stray}. Users, groups and roles must "
f"be unreachable (prod's real user and the media-users / platform-admins / "
f"viewers groups must survive every run); clients are the SIBLING "
f"reconciler's surface and the two must not overlap")
# ---- (d) THE PROTECTED-SUBTREE GUARD EXISTS, IS WIRED, AND IS FAIL-CLOSED ----------
# Asserted against the SOURCE, because this is the property the blue/green design rests
# on and a comment claiming it is worth nothing. Three things must all be true.
check(re.search(r"^def _screen_write\(", script, re.M) is not None,
f"{RECON_FILE}: the script has no _screen_write() function. That is the guard "
f"that refuses any flow write targeting the CURRENTLY BOUND flow's subtree — the "
f"one thing the allow-list cannot express, because its write entries are "
f"alias-parameterised. Without it this component can mutate the live login path")
# It must be CALLED from the single choke point, not merely defined.
check(re.search(r"_screen_write\(method, path", script) is not None,
f"{RECON_FILE}: _screen_write() is defined but never called from _http() with the "
f"request's method and path. A guard that is not on the request path is decoration")
# FAIL-CLOSED: the protected sets must start undetermined, and the reset that runs at
# the top of every run must put them back there.
reset_fn = re.search(r"def _reset_protected\(\):(.*?)(?=\n\S)", script, re.S)
check(reset_fn is not None
and "_PROTECTED_FLOW_ALIASES = None" in reset_fn.group(1)
and "_PROTECTED_EXECUTION_IDS = None" in reset_fn.group(1),
f"{RECON_FILE}: _reset_protected() does not set both protected sets to None. They "
f"must start each run UNDETERMINED, because while they are, every flow write is "
f"refused — that is the fail-closed half of the guard, and it is what stops a "
f"build running before the live binding has been read")
check(re.search(r"_reset_protected\(\)", script.split("def _selftest")[0]) is not None,
f"{RECON_FILE}: _reset_protected() is never called outside the selftest, so the "
f"protected sets are not reset per run and a previous run's binding could be "
f"trusted for this one")
# The create-flow endpoint carries NO alias in its path, so it must be screened on its
# BODY or it escapes the guard entirely. (Found by the selftest; recorded here so a
# future edit cannot silently undo it.)
check("_FLOW_CREATE_PATH" in script,
f"{RECON_FILE}: there is no separate screen for POST .../authentication/flows. "
f"That endpoint carries no alias in its path — the alias is in the request BODY — "
f"so without a body-based screen it bypasses the protected-subtree guard "
f"altogether")
# And the one function allowed to change the live binding must be distinct from the
# policy write, which must refuse to.
# FINDING 2026-10-29: sub-flows are named by displayName in 26.0.6 (recurseExecutions
# never sets `alias` on a sub-flow row). Reading `alias` shrank the protected subtree to
# the top-level flow alone while every selftest passed against a stub that returned it.
check(re.search(r'^def subflow_alias\(ex\):\n(?:.*\n)*? name = ex\.get\("displayName"\)',
script, re.M) is not None,
f"{RECON_FILE}: subflow_alias() no longer reads displayName. Keycloak 26.0.6's "
f"executions listing names a sub-flow ONLY by displayName; reading `alias` yields "
f"None and the protected subtree silently shrinks to the top-level flow")
# FINDING 2026-10-29: the requirement PUT's real target is body["id"].
check("_EXEC_UPDATE_PATH" in script and "_BUILD_EXECUTION_IDS" in script,
f"{RECON_FILE}: the requirement PUT (PUT /flows/<alias>/executions) is no longer "
f"screened on its body id. updateExecutions resolves the execution realm-wide by id "
f"and ignores the path alias, so a path-only screen lets it write the bound flow")
check("def declared_bind(" in script and "BIND_FILE" in script,
f"{RECON_FILE}: the reconciler no longer reads git's bind-browser-flow switch")
check("def bind_browser_flow(" in script,
f"{RECON_FILE}: there is no bind_browser_flow() function. The atomic flip must be "
f"one named, auditable operation, not an incidental field in some other write")
check(re.search(r"never rebinds the browser flow", script) is not None,
f"{RECON_FILE}: the policy write no longer refuses to change browserFlow. "
f"PUT /admin/realms/<realm> DOES read rep.getBrowserFlow(), so the policy pass "
f"can rebind the login path by accident — to an UNVERIFIED flow")
# ======================================== (7) the SIBLING reconciler is NOT widened
if (ROOT / SIBLING_FILE).is_file():
sib_docs = [d for d in load(SIBLING_FILE) if d]
sib_cm = next((d for d in sib_docs if d.get("kind") == "ConfigMap"), None)
sib_script = next(iter((sib_cm.get("data") or {}).values()), "") if sib_cm else ""
sib_allow = tuple_literal(sib_script, "_ALLOWED") or ()
check(bool(sib_allow),
f"{SIBLING_FILE}: could not parse its _ALLOWED list, so this check cannot "
f"prove the sibling was not widened")
if sib_allow:
# The sibling's list is PATH-ONLY by design. Its selftest asserts it refuses the
# whole-realm endpoint and the /authentication tree; assert the same here so a
# future edit that "just adds the realm endpoint there instead" is caught.
bad = [p for p in sib_allow
if isinstance(p, str)
and (re.fullmatch(r"/admin/realms/\[\^/\]\+", p)
or "authentication" in p or "/users" in p or "/groups" in p
or "/roles" in p)]
check(not bad,
f"{SIBLING_FILE}: its allow-list was WIDENED to {bad}. That reconciler's "
f"stated guarantee — prod's real user and the media-users / "
f"platform-admins / viewers groups survive every run — is expressed as "
f"endpoints it CANNOT reach, and its own --selftest asserts the refusal of "
f"/users, /groups, /roles, /authentication and the whole-realm endpoint. "
f"The passkey work is a SIBLING program with its own narrow list precisely "
f"so that guarantee stays literally true. Revert the widening")
# ============================== (8) the reconciler's BEHAVIOUR, proven by its selftest
if script:
with tempfile.TemporaryDirectory() as td:
p = Path(td) / "reconcile.py"
p.write_text(script)
proc = subprocess.run([sys.executable, str(p), "--selftest"],
capture_output=True, text=True, timeout=300)
tail = (proc.stdout + proc.stderr).strip().splitlines()
check(proc.returncode == 0,
"the passkey reconciler's --selftest FAILED (compare-then-write / "
"idempotence / strict read-modify-write / the RpEntityName gate / "
"flow-is-unwritable / the conditional-OTP regression / fail-closed):\n"
" " + "\n ".join(tail[-14:]))
if proc.returncode == 0:
print(" passkey reconciler --selftest: " + (tail[-1] if tail else "(none)"))
# ---- (8b) THE SELFTEST IS FALSIFIABLE, not decorative ----------------------
# A passing suite proves nothing unless it can be shown to FAIL. mutations.py
# injects plausible regressions one at a time -- a partial policy PUT, a
# rebind of browserFlow, a widened allow-list that makes the flow writable, a
# fail-open on an unreadable input -- and requires --selftest to catch every
# one. This matters more than usual here: the whole incident class is a
# component that REPORTED SUCCESS while the realm was broken, and a green test
# that cannot fail is the same lie one level up.
mut = DIR_PATH / "mutations.py"
if mut.is_file():
mproc = subprocess.run([sys.executable, str(mut), str(p)],
capture_output=True, text=True, timeout=900)
mtail = (mproc.stdout + mproc.stderr).strip().splitlines()
check(mproc.returncode == 0,
"the passkey reconciler's --selftest is NOT FALSIFIABLE — at least "
"one injected regression survived it, so the suite does not prove "
"what it claims:\n " + "\n ".join(mtail[-16:]))
if mproc.returncode == 0:
print(" passkey reconciler mutations: "
+ (mtail[-1] if mtail else "(no output)"))
else:
check(False,
"conformance/tests/l0-static/keycloak-passkey-reconciler/mutations.py "
"is missing — nothing proves the --selftest can fail, and an "
"unfalsifiable proof is the failure mode this component exists to end")
# ======================================================= (9) this check is load-bearing
L0 = (ROOT / "ci" / "l0.sh").read_text() if (ROOT / "ci" / "l0.sh").is_file() else ""
GATE = (ROOT / "ci" / "gate.sh").read_text() if (ROOT / "ci" / "gate.sh").is_file() else ""
TOUCHED = ((ROOT / "ci" / "touched-requirements.sh").read_text()
if (ROOT / "ci" / "touched-requirements.sh").is_file() else "")
SELF_YAML = DIR_PATH / "chainsaw-test.yaml"
SELF = SELF_YAML.read_text() if SELF_YAML.is_file() else ""
check(re.search(r'^\s*conformance\.home\.k3s/scope:\s*["\']?whole-repo', SELF, re.M)
is not None,
"keycloak-passkey-reconciler/chainsaw-test.yaml does not declare "
'conformance.home.k3s/scope: "whole-repo", so the merge gate selects this check '
"only when a change happens to attribute one of the requirements it is labelled "
"with. This invariant spans platform/, platform-config/, ci/ and clusters/, so a "
"change that breaks it need not attribute R-IDP-03/04 — which is how 12 unusable "
"prod OIDC clients sat behind an entirely green cluster on 2026-09-06")
check("--include-scope" in L0,
"ci/l0.sh no longer passes --include-scope to the conformance runner, so the L0 "
"stage is a purely requirement-scoped run again and the scope annotation is inert "
"decoration — this check would then run only by coincidence")
check(re.search(r"^for s in .*\bl0\b.*; do", GATE, re.M)
and re.search(r"fail\).*BLOCK=1", GATE),
"ci/gate.sh does not set the merge block when the l0 stage fails")
check(re.search(r"^\s*platform/keycloak/\*\)", TOUCHED, re.M),
"ci/touched-requirements.sh has no platform/keycloak/* arm, so editing the realm "
"import or the reconciler would attribute NO requirement and the keycloak tests "
"would be filtered out of the merge gate's touched subset")
# =============================================================================
if failures:
print("CHECK FAIL: %d assertion(s) failed" % len(failures), file=sys.stderr)
for f in failures:
print(" FAIL %s" % f, file=sys.stderr)
raise SystemExit(1)
print("keycloak-passkey-reconciler: all assertions passed "
"(desired state derived from the realm import, one substitution pass, write "
"surfaces agree, the BOUND flow is unwritable and fail-closed, nothing is "
"deletable, sibling allow-list unwidened, selftest green and falsifiable)")
PY
@@ -0,0 +1,456 @@
#!/usr/bin/env python3
# =============================================================================
# mutations.py -- prove the passkey reconciler's --selftest IS FALSIFIABLE.
#
# WHY THIS EXISTS
# ---------------
# A selftest that passes proves nothing on its own: a selftest asserting `True ==
# True` also passes. This reconciler exists because a one-shot realm import
# REPORTED SUCCESS while the realm was never converged (Done=True / Started=False
# with the whole passkey block inert, measured on prod 2026-10-18), and the same
# trap applies one level up -- a green test suite that cannot fail is the same lie
# in a different place.
#
# It matters more here than for the sibling client reconciler, because this program
# CONSTRUCTS AUTHENTICATION FLOWS and then REBINDS THE REALM'S LOGIN PATH. An
# untested safety property on that surface is not a documentation gap, it is an
# outage waiting for a schedule tick.
#
# So this injects a series of PLAUSIBLE regressions into the shipped script, one at
# a time, and requires that --selftest FAILS for every one. A mutation that
# SURVIVES means the suite does not actually check that property, and the check
# fails, naming it.
#
# THE FIRST SIX ARE THE BLUE/GREEN SAFETY ARGUMENT ITSELF. The design builds a new
# flow under an unused alias, verifies it, and flips `browserFlow` in one atomic
# write -- never mutating the flow users are logging in through. Each of those
# properties is enforced in code; these mutations are the proof that the enforcement
# is load-bearing rather than commentary. Several model the obvious "simplification"
# someone will propose:
# * "just build it under the declared alias, the suffix is ugly"
# * "bind it first, then check -- the check is just belt and braces"
# * "the protected-alias screen is redundant, the allow-list covers it"
# Every one of those would be a total SSO outage waiting to happen.
#
# ANCHORS ARE AUTHORED AGAINST THE EXTRACTED SCRIPT, not against the YAML manifest.
# The sibling mutations.py dedents by four because its anchors are copied out of the
# ConfigMap block scalar; these are copied out of the script as `python3 -` sees it,
# which is one less transformation to get wrong. check.sh passes the extracted file,
# so what is proven falsifiable is byte-for-byte what runs on the cluster either way.
#
# python3 mutations.py <path-to-extracted-reconciler.py>
#
# Runtime is ~60s (one subprocess per mutation, each running the full selftest
# against an in-process stub Keycloak; no network, no cluster).
# =============================================================================
from __future__ import annotations
import re
import subprocess
import sys
import tempfile
from pathlib import Path
# (name, the mistake being modelled, anchor, replacement)
MUTATIONS: list[tuple[str, str, str, str]] = [
# ---------------------------------------------------------------- blue/green safety
("build INTO the currently bound flow",
"'the suffix is ugly, just build under the declared alias' -- every "
"create-execution and set-requirement call would then land on the flow users are "
"logging in through, and a run dying part-way leaves a HALF-BUILT LOGIN PATH for "
"every SSO app and kubectl. This is the single regression the whole design exists "
"to make impossible",
" def mapped(alias):\n"
" return \"%s-%s\" % (alias, suffix)",
" def mapped(alias):\n return alias"),
("the protected-subtree screen is never called",
"'the allow-list already covers it' -- it does not: the allow-list's write entries "
"are alias-parameterised, so only this screen can say 'but not the flow that is "
"bound'. Without it the reconciler may write anywhere in the authentication tree",
" _screen_write(method, path, body if isinstance(body, dict) else None)",
" pass"),
("the per-run reset makes the protected sets EMPTY, not UNDETERMINED",
"reset them to frozenset() so the code reads more simply -- it silently removes "
"the fail-closed property, so a build that ran before the live binding had been "
"read would be PERMITTED, and could write straight into the live flow. (The "
"module-level initial value is deliberately NOT the anchor here: run() resets "
"these at the start of every run, so the initialiser is unreachable and mutating "
"it would prove nothing.)",
" global _PROTECTED_FLOW_ALIASES, _PROTECTED_EXECUTION_IDS, _BUILD_EXECUTION_IDS\n"
" _PROTECTED_FLOW_ALIASES = None\n"
" _PROTECTED_EXECUTION_IDS = None",
" global _PROTECTED_FLOW_ALIASES, _PROTECTED_EXECUTION_IDS, _BUILD_EXECUTION_IDS\n"
" _PROTECTED_FLOW_ALIASES = frozenset()\n"
" _PROTECTED_EXECUTION_IDS = frozenset()"),
("bind BEFORE verifying the build",
"'bind it first, the readback is just belt and braces' -- it is not: the readback "
"is what catches a build that was accepted but came out wrong, including the "
"conditional-OTP config landing under the wrong key. Binding first makes that the "
"live login path before anyone notices",
" verify = compare_shape(final_shape, expected, base, realm, token, configs,\n"
" \"the newly built flow %r\" % target)",
" verify = []"),
("a failed build is reported as SUCCESS",
"swallow the build error and return a converged result -- the realm is then left "
"on the old flow (which blue/green makes safe) but the run says it converged, so "
"nobody ever learns the passkey flow was never built. That is the one-shot "
"import's fail-open, reintroduced. NOTE: simply removing the early return here "
"is NOT a regression -- verify-before-bind catches a half-built flow anyway, which "
"is defence in depth working as intended -- so the mutation targets the reporting",
" problems.append(\n"
" \"flow: building %r FAILED (%s). Nothing was bound, so login is \"\n"
" \"UNAFFECTED -- the old flow is still live. The partial flow is left in \"\n"
" \"place, unbound and harmless\" % (candidate, e))\n"
" return 0, problems",
" return 1, []"),
("an existing candidate flow is reused WITHOUT verifying it",
"'if the alias exists we already built it' -- a half-built leftover from a crashed "
"run lives under exactly that alias, so this binds a partially constructed login "
"path",
" if cand_shape is not None and not compare_shape(\n"
" cand_shape, expected, base, realm, token, configs,\n"
" \"the existing flow %r\" % candidate):",
" if cand_shape is not None:"),
# ------------------------------------- 2026-10-29 review findings, each made falsifiable
("sub-flows identified by `alias` again",
"read `alias` off a sub-flow row, as the first version did -- Keycloak 26.0.6's "
"recurseExecutions sets only displayName (and flowId) on a sub-flow row, so every "
"sub-flow resolves to nothing and the protected subtree is the top-level flow alone: "
"a write into browser-mfa-forms would NOT be refused",
" name = ex.get(\"displayName\")\n"
" return name if isinstance(name, str) and name else None",
" name = ex.get(\"alias\")\n"
" return name if isinstance(name, str) and name else None"),
("an unnameable sub-flow is tolerated",
"carry on when a sub-flow row has no displayName -- the protected subtree is then "
"SMALLER than the live tree, which is the fail-open the guard exists to prevent",
" if name is None:\n"
" return None, None",
" if name is None:\n"
" name = \"\""),
("the requirement PUT is screened on its path only",
"trust the alias in PUT /flows/<alias>/executions -- updateExecutions resolves "
"body.id realm-wide and never checks it belongs to <alias>, so a candidate alias in "
"the path can carry a BOUND execution's id in the body",
" targets.append((\"execution\", (body or {}).get(\"id\")))",
" pass"),
("execution-addressed writes are not held to the build tree",
"'outside the bound subtree is enough' -- it is not: every OTHER flow in the realm is "
"outside it too, so a stray id would edit an unrelated flow",
" if what == \"execution\" and (_BUILD_EXECUTION_IDS is None\n"
" or target not in _BUILD_EXECUTION_IDS):",
" if False:"),
("the requirement PUT may carry any key",
"let the body carry flowId / displayName -- the same handler then RENAMES whatever "
"flow flowId names, bound or not",
" if extra:\n"
" raise Refused(",
" if False:\n"
" raise Refused("),
("git's bind switch is ignored",
"bind whenever verification passes, as the first version did -- the first live use of "
"an untested login flow becomes a schedule tick, and an operator's rollback is "
"undone within 15 minutes, forever",
" bind = git_bind and not no_bind",
" bind = not no_bind"),
("bind=false still binds inside the flow pass",
"keep the flag but forget to honour it where the bind happens",
" if not bind:\n"
" # THE BIND SWITCH IS OFF.",
" if False:\n"
" # THE BIND SWITCH IS OFF."),
("an absent bind switch means bind",
"default to true when the key is missing -- a ConfigMap predating the switch, or a "
"deleted line, would silently put an untested flow live",
" except FileNotFoundError:\n"
" return False",
" except FileNotFoundError:\n"
" return True"),
("an invalid bind switch is guessed at",
"read anything that is not \"true\" as false -- a typo then passes silently instead of "
"stopping the run, and the operator believes the flow is live",
" if raw == \"false\":\n"
" return False\n"
" raise ValueError(",
" return False\n"
" raise ValueError("),
("bind=false rebuilds beside a hand-edited bound flow",
"treat the hand-edited bound candidate as a 'half-built leftover' -- with the switch "
"off this builds an -r2 next to the operator's hotfix on every tick",
" if candidate in have and candidate == bound and not bind:",
" if False:"),
# ------------------------------------------------------------------- idempotence
("sub-flow aliases are compared as names",
"compare the sub-flow alias like any other field -- the flows this program builds "
"carry a hash suffix on every alias, so a built flow could NEVER be recognised as "
"converged: it would be rebuilt and the login path reflipped every fifteen "
"minutes, forever",
" out.append((level, ex[\"kind\"], \"\" if is_flow else ex[\"name\"],\n"
" ex[\"requirement\"], ex.get(\"configAlias\") or \"\", ex[\"name\"]))",
" out.append((level, ex[\"kind\"], ex[\"name\"],\n"
" ex[\"requirement\"], ex.get(\"configAlias\") or \"\", ex[\"name\"]))"),
("the converged short-circuit is removed",
"drop the 'bound flow already matches git' early return -- every run rebuilds and "
"reflips, which is a permanent write loop against the IdP and churns the realm's "
"login path on a schedule",
" if not drift:\n"
" log(\"flow ok (the bound flow %r matches git: %d execution(s), no \"\n"
" \"write)\" % (bound, len(expected)))\n"
" return 0, problems",
" if False:\n return 0, problems"),
("the execution priority is dropped from the requirement write",
"omit `priority` from the body -- Keycloak's updateExecutions deserialises a "
"missing int as 0 and compares it against the stored priority, so this RESHUFFLES "
"the execution order while only a requirement change was intended. The passkey "
"branch would end up in the wrong place in the tree",
" body={\"id\": ex.get(\"id\"), \"requirement\": want_req,\n"
" \"priority\": ex.get(\"priority\") or 0})",
" body={\"id\": ex.get(\"id\"), \"requirement\": want_req})"),
("the alias budget is unbounded",
"loop forever looking for a free alias -- a persistently failing build then creates "
"unbounded flow sprawl in the realm, and nothing here can delete any of it",
" for attempt in range(1, MAX_BUILD_ATTEMPTS + 1):",
" for attempt in range(1, 10000):"),
("fail-open when the bound flow cannot be read",
"carry on when the live flow's executions are unreadable -- the program then cannot "
"know which flows are live, so it cannot prove a build would miss them, and it "
"would build with the protected sets still undetermined",
" return 0, [\n"
" \"flow: the realm binds browserFlow to %r but its executions could not \"\n"
" \"be read, so this program cannot establish which flows are live. Flow \"\n"
" \"writes stay FAIL-CLOSED for this run -- nothing was built or bound\"\n"
" % bound]",
" _set_protected(set(), set())\n bound_shape, bound_raw = None, None"),
# ------------------------------------------------------- the conditional-OTP regression
("authenticator config contents no longer compared",
"check only that a config is BOUND, not what it says -- this is THE conditional-OTP "
"regression: the original bug wrote the role under "
"`condition.evaluated.user.role` instead of `condUserRole`, so the role resolved "
"to null, the REQUIRED conditional step threw 'Invalid role name submitted: null' "
"and every platform-admin got a 403 from every SSO-gated app",
" if str(have_cfg.get(key)) != str(want_cfg[key]):",
" if False:"),
("undeclared config keys are ignored",
"stop reporting keys the realm holds and git does not -- the stale "
"`condition.evaluated.user.role` key is the signature of the original null-role "
"bug, and a flow carrying both keys would look correct",
" extra = sorted(k for k in have_cfg if k not in want_cfg)",
" extra = []"),
("flow structure divergence detected but not reported",
"leave the per-step comparison out -- the realm's login flow could be the old "
"pre-passkey shape forever and every run would report the realm converged, which "
"is the exact fail-open of the one-shot import this program replaces",
" if observed[idx][:4] != expected[idx][:4]:",
" if False:"),
("the browserFlow BINDING is no longer compared",
"stop noticing that a correct flow is not the one bound -- a perfect, fully-built "
"passkey flow that nothing logs in through changes nothing at all",
" if bound_shape is not None:\n"
" drift = compare_shape(bound_shape, expected, base, realm, token, configs,",
" if False:\n"
" drift = compare_shape(bound_shape, expected, base, realm, token, configs,"),
# ------------------------------------------------------------- realm / policy writes
("partial policy PUT instead of read-modify-write",
"send only the drifted policy keys -- Keycloak 26.0.6 rebuilds the WHOLE "
"passwordless policy from the representation and substitutes its own DEFAULT for "
"every key the body omits, so a partial PUT silently resets everything it did not "
"mention while returning 204",
" body = dict(realm_rep)\n"
" for key in drift:\n"
" body[key] = wanted[key]",
" body = {RP_ENTITY_NAME: realm_rep.get(RP_ENTITY_NAME),\n"
" BROWSER_FLOW: realm_rep.get(BROWSER_FLOW)}\n"
" for key in drift:\n"
" body[key] = wanted[key]"),
("the policy pass rebinds browserFlow as a side effect",
"'while we are here, let the policy write fix the flow binding too' -- the realm "
"PUT does read rep.getBrowserFlow(), so this is genuinely in reach, and it would "
"rebind the login path to an UNVERIFIED flow from a pass whose stated surface is "
"the passkey policy",
" if body.get(BROWSER_FLOW) != realm_rep.get(BROWSER_FLOW):\n"
" raise RuntimeError(",
" body[BROWSER_FLOW] = \"browser\"\n"
" if False:\n"
" raise RuntimeError("),
("the RpEntityName gate removed from desired-state validation",
"accept a desired state with an empty RpEntityName -- Keycloak 26.0.6 applies the "
"passwordless policy ONLY when that field is non-empty, so every realm PUT would "
"be accepted with 204 and change nothing: reported success, zero convergence",
" if not policy.get(RP_ENTITY_NAME):\n"
" raise ValueError(",
" if False:\n raise ValueError("),
("the RpEntityName gate removed from the write path",
"drop the second, defence-in-depth guard -- it is unreachable while the "
"desired-state validation holds, which is exactly why deleting it would otherwise "
"be an invisible regression",
" if not body.get(RP_ENTITY_NAME):\n"
" raise RuntimeError(",
" if False:\n raise RuntimeError("),
("no readback verification on the policy write",
"trust the 204 -- a server that accepts the PUT and does not apply it is reported "
"as REPAIRED, which is 'reports success while the realm never converged' again, "
"and it is precisely what the RpEntityName gate does when it is missed",
" still = policy_drift(after, wanted)",
" still = {}"),
("AAGUID comparison made order-sensitive",
"compare the AAGUID allow-list in the order Keycloak returns it -- an allow-list "
"is a set membership test, so an order-sensitive comparison rewrites a CONVERGED "
"realm on every run forever while every run still reports success",
" if stored != sorted(declared_value):\n"
" drift[key] = (stored, sorted(declared_value))",
" if stored != declared_value:\n"
" drift[key] = (stored, declared_value)"),
("signature-algorithm order treated as insignificant",
"sort the signature algorithms before comparing -- it is a PREFERENCE LIST handed "
"to the authenticator, so ES256-then-RS256 is not the same declaration as "
"RS256-then-ES256, and a reorder in the realm would never be corrected",
" if stored != list(declared_value):",
" if sorted(stored) != sorted(declared_value):"),
("unmanaged policy keys forced to a value",
"iterate every writable key instead of only the declared ones -- a "
"webAuthnPolicyPasswordless field the realm holds and git does not declare would "
"be overwritten, turning 'not declared' into 'must equal my default'",
" for key in sorted(wanted):\n declared_value = wanted[key]",
" for key in POLICY_FIELDS:\n declared_value = wanted.get(key, \"\")"),
# ------------------------------------------------------------------ required actions
("required-action PUT sends only the two drifted fields",
"a minimal body looks safer -- but updateRequiredAction REPLACES the provider from "
"the representation, so name, priority and config are all blanked: the enrolment "
"action keeps working but loses its priority and display name",
" body = dict(rep)\n for key in drift:\n body[key] = wanted[key]",
" body = {}\n for key in drift:\n body[key] = wanted[key]"),
("the guarded default required actions are no longer audited",
"stop checking that CONFIGURE_TOTP / UPDATE_PASSWORD / delete_credential still "
"exist -- their disappearance is the signature of a requiredActions block in the "
"realm import, which 26.0.6 treats as REPLACE, and it is a silent permanent "
"lock-out of every platform-admin",
" missing = [a for a in GUARDED_ACTIONS if a not in aliases]",
" missing = []"),
# ----------------------------------------------------------------- inputs / coupling
("the three passes are coupled",
"abort the run at the first failing pass -- a policy write that fails for an "
"unrelated reason would then suppress the browser-flow pass, which is the most "
"safety-critical thing here",
" problems.extend(found)\n if found:\n rc = 1",
" problems.extend(found)\n if found:\n rc = 1\n"
" break"),
("policy-key validation removed from the desired state",
"accept any realm key from the ConfigMap -- an arbitrary realm attribute becomes "
"writable through a file edit, so a hand-edited ConfigMap could set sslRequired, "
"bruteForceProtected or any other top-level realm field on the live IdP",
" if key not in POLICY_FIELDS:",
" if False:"),
("fail-open on an unreadable desired state",
"treat a missing ConfigMap as 'nothing declared' -- the run reports success while "
"reconciling nothing, which is precisely the fail-open of the realm import this "
"whole component exists to replace",
" if not isinstance(raw, dict) or not raw:\n"
" raise ValueError(\"%s does not hold a non-empty JSON object\" % path)",
" if not isinstance(raw, dict) or not raw:\n return {}"),
("an undeclared authenticatorConfig reference is tolerated",
"stop validating that every configAlias a flow references is actually declared -- "
"the build then fails at the config-binding step, AFTER flows and executions have "
"already been created, leaving leftovers on every run",
" if ca and ca not in configs:\n"
" raise ValueError(",
" if False:\n raise ValueError("),
("the flow-cycle guard is removed",
"drop the `seen` check -- a cyclic flow declaration then recurses until the "
"interpreter dies, in a CronJob that retries",
" if alias in seen:\n"
" raise ValueError(\"flow %r is cyclic in the desired state\" % alias)",
" if False:\n"
" raise ValueError(\"flow %r is cyclic in the desired state\" % alias)"),
]
def main() -> int:
if len(sys.argv) != 2:
print("usage: mutations.py <extracted-reconciler.py>", file=sys.stderr)
return 2
src = Path(sys.argv[1]).read_text()
problems: list[str] = []
killed = 0
for name, why, old, new in MUTATIONS:
# An anchor that no longer matches is a FAILURE, not a skip: it means the code
# moved and this mutation silently stopped proving anything.
n = src.count(old)
if n != 1:
problems.append("%s: anchor matches %d times (expected exactly 1) -- the "
"code moved and this mutation no longer proves anything. "
"Re-anchor it against the current source." % (name, n))
continue
with tempfile.NamedTemporaryFile("w", suffix=".py", delete=False) as fh:
fh.write(src.replace(old, new, 1))
path = fh.name
try:
proc = subprocess.run([sys.executable, path, "--selftest"],
capture_output=True, text=True, timeout=300)
finally:
Path(path).unlink(missing_ok=True)
if proc.returncode == 0:
problems.append("%s SURVIVED -- --selftest still passed with this regression "
"applied, so nothing in the suite actually checks it. The "
"mistake it models: %s" % (name, why))
continue
killed += 1
out = proc.stdout + proc.stderr
m = re.search(r"SELFTEST FAIL: (\d+) of \d+", out)
how = ("%s assertion(s) caught it" % m.group(1) if m
else "the selftest aborted (caught, less cleanly)")
print(" killed %-54s %s" % (name, how))
print()
if problems:
print("MUTATION CHECK FAIL: %d of %d mutation(s) not proven"
% (len(problems), len(MUTATIONS)), file=sys.stderr)
for p in problems:
print(" FAIL %s" % p, file=sys.stderr)
return 1
print("MUTATION CHECK OK: all %d injected regressions were caught by --selftest "
"(the suite is falsifiable, not decorative)" % killed)
return 0
if __name__ == "__main__":
raise SystemExit(main())
@@ -42,6 +42,19 @@
# whose every solver is an automated challenge type (dns01 / http01) — the
# same code path serves issuance AND renewal, so a solver a human must
# complete would defeat both;
# (5b) the ONE exception to (5) — WORKLOAD mTLS, added 2026-10-29 — is a Certificate
# annotated `homelab.keithjackson.dev/tls-scope: workload-mtls`. The spec's TLS
# requirements are about EXTERNALLY REACHABLE services (R-TLS-01; docs/08), and
# ADR-0006 says outright that "mTLS between workloads is a separate concern … not
# covered here". A public ACME CA cannot issue for a `*.svc.cluster.local` name or a
# client-auth certificate at all. The annotation is NOT trusted: an exempt
# Certificate must PROVE it is workload-internal — its Secret is served by NO Gateway
# listener, every DNS name / commonName is cluster-internal (a bare label or
# `*.svc[.cluster.local]`), it carries no IP/URI/email SANs, and its issuer is a
# NAMESPACED Issuer in its own namespace whose spec is `selfSigned` or a `ca` backed
# by a Secret that a tracked, likewise-exempt Certificate produces. Issuance and
# renewal stay unattended (cert-manager renews CA-issued certs itself), and (9)
# still applies. Every exemption is printed. First user: platform/buildkit.
# (6) each dns01 solver's provider credential is referenced BY NAME and that
# Secret is delivered SOPS-encrypted from git via a kustomization — the
# operator's one-time token hand-off (docs/08 OQ-4), never a per-cert step;
@@ -265,6 +278,7 @@ CERT_SECRETS: dict[tuple[str, str], str] = { # (namespace, secretName)
for rel, d in CERTS
}
listeners_checked = 0
GATEWAY_SECRETS: set[tuple[str, str]] = set() # every (namespace, Secret) a listener serves
for rel, gw in of_kind("Gateway", "gateway.networking.k8s.io/"):
gw_ns = ns_of(gw)
for lis in ((gw.get("spec") or {}).get("listeners") or []):
@@ -280,6 +294,7 @@ for rel, gw in of_kind("Gateway", "gateway.networking.k8s.io/"):
for r in refs:
kind = str(r.get("kind", "Secret"))
key = (str(r.get("namespace") or gw_ns), str(r.get("name")))
GATEWAY_SECRETS.add(key)
check(kind == "Secret",
f"{rel}: listener {lis.get('name')!r} certificateRef kind is {kind!r}; only "
"Secret refs can be traced to a cert-manager Certificate")
@@ -324,8 +339,61 @@ CM_NS = ns_of(cm_releases[0][1], "cert-manager") if cm_releases else "cert-manag
ISSUER_INDEX = {(d.get("kind"), name_of(d)): (rel, d) for rel, d in ISSUERS}
solver_creds: list[tuple[str, str, str, str]] = [] # (issuer, ns, secretName, ref field)
issuers_verified: set[str] = set()
# (5b) workload-mTLS exemption — see the header. Proven, never taken on trust.
SCOPE_ANN = "homelab.keithjackson.dev/tls-scope"
INTERNAL_NAME = re.compile(r"^[a-z0-9]([a-z0-9-]*[a-z0-9])?(\.[a-z0-9]([a-z0-9-]*[a-z0-9])?)*$")
NS_ISSUERS = {(ns_of(d), name_of(d)): (rel, d) for rel, d in of_kind("Issuer", "cert-manager.io/")}
EXEMPT_SECRETS = {(ns_of(d), str((d.get("spec") or {}).get("secretName", "")))
for _, d in CERTS
if ((d.get("metadata") or {}).get("annotations") or {}).get(SCOPE_ANN) == "workload-mtls"}
exempted: list[str] = []
def workload_mtls_ok(rel: str, cert: dict) -> bool:
"""True if `cert` claims the workload-mTLS scope AND proves it; records failures."""
ann = ((cert.get("metadata") or {}).get("annotations") or {}).get(SCOPE_ANN)
if ann is None:
return False
cns, cname = ns_of(cert), name_of(cert)
spec = cert.get("spec") or {}
ok = True
def need(cond, msg):
nonlocal ok
check(cond, f"{rel}: Certificate {cns}/{cname} claims {SCOPE_ANN}={ann!r} but {msg}")
ok = ok and bool(cond)
need(ann == "workload-mtls", "the only accepted value is 'workload-mtls'")
need((cns, str(spec.get("secretName", ""))) not in GATEWAY_SECRETS,
"its Secret is served by a Gateway listener — that is external TLS, which must be ACME (R-TLS-01)")
names = [str(n) for n in (spec.get("dnsNames") or [])]
if spec.get("commonName"):
names.append(str(spec["commonName"]))
for n in names:
internal = INTERNAL_NAME.match(n) and ("." not in n or n.endswith(".svc") or n.endswith(".svc.cluster.local"))
need(bool(internal), f"name {n!r} is not cluster-internal (bare label or *.svc[.cluster.local])")
for f in ("ipAddresses", "uris", "emailAddresses"):
need(not spec.get(f), f"it carries {f}, which a workload-internal certificate has no use for")
ref = spec.get("issuerRef") or {}
need(str(ref.get("kind", "Issuer")) == "Issuer",
"its issuer is not a NAMESPACED Issuer — a ClusterIssuer could sign for any namespace")
hit = NS_ISSUERS.get((cns, str(ref.get("name", ""))))
need(hit is not None, f"its Issuer {ref.get('name')!r} is not tracked in namespace {cns!r}")
if hit is not None:
ispec = hit[1].get("spec") or {}
kinds = sorted(ispec)
need(kinds in (["selfSigned"], ["ca"]),
f"its Issuer is {kinds} — only selfSigned or ca are accepted for workload mTLS")
if kinds == ["ca"]:
need((cns, str((ispec.get("ca") or {}).get("secretName", ""))) in EXEMPT_SECRETS,
"its CA Issuer's Secret is not produced by a tracked workload-mtls Certificate "
"in the same namespace — the CA itself would have to be minted by hand")
if ok:
exempted.append(f"{cns}/{cname}")
return ok
for rel, cert in CERTS:
spec = cert.get("spec") or {}
if workload_mtls_ok(rel, cert):
continue # (5b): proven workload-internal; (9) below still applies
ref = spec.get("issuerRef") or {}
kind = str(ref.get("kind", "Issuer"))
per_env = resolve_per_env(str(ref.get("name", "")))
@@ -379,6 +447,8 @@ for rel, cert in CERTS:
solver_creds.append((iname, want_ns, n, f"{provider}.{field}"))
check(len(issuers_verified) > 0, "no issuer was reachable from any Certificate — (5) proved nothing")
if exempted:
print(f" (5b) workload-mTLS certificates exempted from ACME after proving it: {', '.join(exempted)}")
# (6) the solver credential is delivered, SOPS-encrypted, from git — never per-cert by hand.
check(len(solver_creds) > 0,
@@ -171,6 +171,27 @@ spec:
- port: '4180'
protocol: TCP
---
# CiliumNetworkPolicy monitoring scrape ingress allow (R-NET-02/R-OBS-01): paas-demo-allow-monitoring-scrape
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: paas-demo-allow-monitoring-scrape
namespace: paas-demo
labels:
app.kubernetes.io/name: paas-demo
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: paas-demo
ingress:
- fromEndpoints:
- matchLabels:
k8s:io.kubernetes.pod.namespace: monitoring
toPorts:
- ports:
- port: '44180'
protocol: TCP
---
# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): paas-demo-allow-internet-egress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
@@ -198,6 +198,27 @@ spec:
- port: '4180'
protocol: TCP
---
# CiliumNetworkPolicy monitoring scrape ingress allow (R-NET-02/R-OBS-01): sonarr-allow-monitoring-scrape
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: sonarr-allow-monitoring-scrape
namespace: sonarr
labels:
app.kubernetes.io/name: sonarr
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: sonarr
ingress:
- fromEndpoints:
- matchLabels:
k8s:io.kubernetes.pod.namespace: monitoring
toPorts:
- ports:
- port: '44180'
protocol: TCP
---
# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): sonarr-allow-internet-egress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
@@ -198,6 +198,27 @@ spec:
- port: '4180'
protocol: TCP
---
# CiliumNetworkPolicy monitoring scrape ingress allow (R-NET-02/R-OBS-01): sonarr-allow-monitoring-scrape
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: sonarr-allow-monitoring-scrape
namespace: sonarr
labels:
app.kubernetes.io/name: sonarr
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: sonarr
ingress:
- fromEndpoints:
- matchLabels:
k8s:io.kubernetes.pod.namespace: monitoring
toPorts:
- ports:
- port: '44180'
protocol: TCP
---
# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): sonarr-allow-internet-egress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
+18 -21
View File
@@ -40,32 +40,29 @@ PYTHON_MIN="3.9"
# gitea.home.keithjackson.dev/home-network/conformance-runner@sha256:*
# Any other path, and any TAG reference, is DENIED at admission. Do not "tidy" these values.
CONFORMANCE_RUNNER_IMAGE_REPO="gitea.home.keithjackson.dev/home-network/conformance-runner"
# Build handle only. Admission never sees the tag; a Job must reference the digest.
# Local build handle only. Admission never sees the tag; a Job must reference the digest.
# CI publishes under `sha-<commit>` and `main` instead (.gitea/workflows/images.yaml).
CONFORMANCE_RUNNER_IMAGE_TAG="chainsaw0.2.12-kubectl1.36.4-fc44"
#
# ############################################################################
# # DIGEST DELIBERATELY EMPTY — THE IMAGE HAS NOT BEEN PUBLISHED YET. #
# # THE DIGEST IS WRITTEN BY RENOVATE, NOT BY HAND. #
# ############################################################################
# The image has been BUILT and its toolchain verified locally (non-root uid 65532,
# read-only rootfs: bash 5.3.9, Python 3.14.7, git 2.55.0, kubectl v1.36.4, chainsaw 0.2.12,
# and `./run.sh --layer l2 --no-cluster` completing with rc 0). It has NOT been pushed:
# pushing needs a registry credential, and publishing the artifact a fail-closed security
# boundary then trusts is an OPERATOR action, not an agent's.
# CI builds and verifies the image (non-root uid 65532, read-only rootfs, the
# conformance-clone refusals) and, on a push to main, publishes it and prints the digest the
# REGISTRY returned (.gitea/workflows/images.yaml). Renovate follows the image's `main` tag
# through the marker below and opens the pull request that moves this value. Nobody pushes
# this image from a workstation, and nobody pastes a digest here.
#
# OPERATOR, to complete the pin:
# 1. ./conformance/incluster/build-image.sh # rebuild, verify, print the commands
# 2. podman login gitea.home.keithjackson.dev
# 3. podman push --digestfile /tmp/conformance-runner.digest \
# "${CONFORMANCE_RUNNER_IMAGE_REPO}:${CONFORMANCE_RUNNER_IMAGE_TAG}"
# 4. Set CONFORMANCE_RUNNER_IMAGE_DIGEST below to `cat /tmp/conformance-runner.digest`
# — the digest the REGISTRY returned, not the local manifest digest the build printed.
# 5. Land steps 4 in a PR (this file is GitOps input, not a live edit).
#
# UNTIL THEN: this is empty on purpose, NOT a placeholder to be guessed at. An empty value
# makes any consumer that renders the Job fail visibly; a fake or stale digest would instead
# produce an ImagePullBackOff that looks like a cluster fault. Do not invent one.
CONFORMANCE_RUNNER_IMAGE_DIGEST=""
CONFORMANCE_RUNNER_IMAGE="${CONFORMANCE_RUNNER_IMAGE_DIGEST:+${CONFORMANCE_RUNNER_IMAGE_REPO}@${CONFORMANCE_RUNNER_IMAGE_DIGEST}}"
# ALL-ZERO UNTIL THE FIRST PUBLISH. Before 2026-10-29 this was EMPTY, so that a consumer
# rendering the Job would fail visibly. It is now the same impossible all-zero digest
# platform/pm-agent/ uses, because Renovate can only replace a digest that is there to match.
# A consumer MUST treat the all-zero value as "not published" (no consumer exists yet: the
# L2/L3 trigger is unwired, docs/plans/l2-l3-conformance-ci-wiring.md). Note also that
# chainsaw-job.yaml's @@CONFORMANCE_RUNNER_IMAGE_DIGEST@@ takes the 64 hex digits WITHOUT the
# `sha256:` prefix this value carries — the trigger must strip it.
# renovate-digest: image=gitea.home.keithjackson.dev/home-network/conformance-runner tag=main
CONFORMANCE_RUNNER_IMAGE_DIGEST="sha256:0000000000000000000000000000000000000000000000000000000000000000"
CONFORMANCE_RUNNER_IMAGE="${CONFORMANCE_RUNNER_IMAGE_REPO}@${CONFORMANCE_RUNNER_IMAGE_DIGEST}"
#
# AFTERWARDS, TIGHTEN THE BOUNDARY: the header of conformance-trigger-job-shape.yaml asks for
# its `@sha256:*` wildcard to be replaced with the LITERAL digest once the image exists —
@@ -0,0 +1,76 @@
---
date: 2026-10-03
branch: fix/cilium-cgroup-hostroot
title: Cilium socket-LB never covered host processes — cgroup.hostRoot pointed at an unmounted path
---
## What changed
`cgroup.hostRoot` changes from `/run/cilium/cgroupv2` to `/sys/fs/cgroup` in all three parity
copies: `platform/cilium/helmrelease.yaml` (authoritative), `platform/cilium/values.yaml`
(mirror) and `infra/ansible/roles/cilium/templates/cilium-values.yaml.j2` (bootstrap).
`autoMount` stays `false`.
**The defect.** With `autoMount: false`, the Cilium chart only bind-mounts whatever exists at
`hostRoot`, and expects the operator to have mounted cgroup2 there (cilium 1.20.1 values.yaml).
The repo's rationale was "k3s provides the cgroupv2 mount". That is true only for
`/sys/fs/cgroup`. Nothing mounts cgroup2 at `/run/cilium/cgroupv2` on these nodes; it is an
empty `DirectoryOrCreate` hostPath. So the agent mounted cgroup2 there itself, from inside its
own private cgroup namespace, and that mount's root is the agent container's own leaf cgroup.
The socket-LB programs (`cil_sock4_connect` etc.) were attached to it and covered only the
agent.
**The consequence.** Every other host-netns process got no Service/LB translation:
- Service ClusterIPs were unreachable from every node's host.
- The node holding the Gateway's L2 lease could not reach the Gateway VIP (`no route to host`).
Other nodes reached it only because their packets crossed the wire to the lease holder, where
the tc datapath handles them.
- k3s-prod-1 holds both the Gateway lease and the kube-vip API VIP. Its apiserver could not reach
the OIDC issuer, logging `oidc: authenticator not initialized` since at least 2026-09-12
(899 occurrences by 2026-10-03). kubectl SSO through the VIP therefore failed, and in-cluster
OIDC clients failed on whichever calls landed on that apiserver.
- Webhooks and aggregated APIs were unaffected only because k3s runs
`--enable-aggregator-routing=true` (endpoint IPs, not ClusterIPs).
Cilium's own source (v1.20.1 `bpf/bpf_sock.c`, `__sock4_xlate_fwd`) handles exactly this case
when the hook does run: a host-netns connect to an L7-LB Service (the Gateway) is rewritten to
`127.0.0.1:<l7_lb_proxy_port>`, the local Envoy listener. The fix is to make the hook cover the
host.
## What I verified
- `cilium-dbg status --verbose` on k3s-prod-1: `Socket LB: Enabled`, `Coverage: Hostns-only`.
The live cilium-config shows `bpf-lb-sock=false`, but socket LB is implied by kube-proxy
replacement. The Gateway Service frontends `192.168.2.20:{80,443}` and
`10.43.225.79:{80,443}` map to `127.0.0.1:14337`.
- Host: `findmnt /run/cilium/cgroupv2` is empty on all three nodes, and `/sys/fs/cgroup` is
`cgroup2`.
- In the agent: `/run/cilium/cgroupv2` is a `cgroup2 none` mount, the agent's own cgroup reads
`0::/`, the mount has 0 child cgroups, and `bpftool cgroup show /run/cilium/cgroupv2` lists all
`cil_sock*` programs. k3s runs in `0::/system.slice/k3s.service`, and the agent container in
`/kubepods.slice/…/cri-containerd-3ad04cde….scope`.
- **The decisive test**, run on k3s-prod-1 in the same netns: raw TCP connect to
`192.168.2.20:443`, `10.43.225.79:443` and `10.43.59.141:8080` CONNECTED from inside the agent
container (covered cgroup) and FAILED from the host (`No route to host` / timeout).
- Blast radius: host-network pods are cilium, cilium-envoy, cilium-operator (API via
`192.168.2.9:6443`, not a Service), kube-vip (`127.0.0.1:6443`, `svc_enable=false`) and
node-exporter (no outbound). Nothing depends on host Service translation being absent; the
change only makes Service/LB addresses reachable from the host where they currently fail.
- `helm template cilium/cilium --version 1.20.1` with the new values, in the toolbox: the
DaemonSet bind-mounts hostPath `/sys/fs/cgroup` into `cilium-agent` and `clean-cilium-state`,
the cilium-config shows `cgroup-root: "/sys/fs/cgroup"`, and the init containers are unchanged
(no `mount-cgroup`).
- Toolbox gate: see the PR description.
## What I did NOT verify
- **The rollout itself.** After merge, the agent DaemonSet rolls one node at a time
(`maxUnavailable: 1`). On each node, afterwards: host TCP connects to the three targets above
must succeed. On k3s-prod-1, the apiserver's background OIDC init retry must stop logging
`authenticator not initialized` with no k3s restart.
- That the old programs, attached to the previous agent container's cgroup, disappear with it.
Expected, because cgroup BPF attachments die with the cgroup, but not observed.
- An end-to-end kubectl OIDC login (needs a browser).
- No regression test was added. A natural one is an L2 conformance check that a host-netns
connect to the Gateway VIP succeeds on the lease holder, but `conformance/**` is a sensitive
path. Left as a follow-up.
@@ -0,0 +1,45 @@
---
date: 2026-10-03
branch: fix/node-keycloak-hosts-pin
title: Pin the OIDC issuer to the Gateway VIP on prod nodes — the WAN answer does not hairpin
---
## What changed
Follow-up to PR #40 (`decisions/2026-10-03-public-dns-wan-target.md`). Public DNS for
`*.home.keithjackson.dev` now CNAMEs to the WAN IP. The prod nodes resolve through public DNS,
and the router does not hairpin, so the kube-apiserver could no longer reach its OIDC issuer
`keycloak.home.keithjackson.dev`.
- `roles/node_baseline`: a new `node_baseline_hosts_pins` list (default `[]`) and one
`blockinfile` task (tags `dns`, `hosts`). It writes the pins into `/etc/hosts` as a single
marked block. An empty list removes the block.
- `group_vars/k3s_prod/vars.yml`: pins `keycloak.{{ k3s_base_domain }}` → `192.168.2.20`, which
must stay equal to `GATEWAY_VIP` (parity comment added). It also replaces the stale "no
/etc/hosts pin is needed" paragraph with the measured reason the pin is now required.
Dev is unaffected (empty default).
## What I verified
- After PR #40 reconciled (`platform` lastAppliedRevision `576e1ab`, Healthy=True), on
k3s-prod-2 and k3s-prod-3: `getent hosts keycloak.home.keithjackson.dev` →
`136.51.115.252 wan.home.keithjackson.dev`. `curl https://keycloak…/realms/homelab/.well-known/openid-configuration`
→ exit 60, `ssl_verify_result=18` (the router's self-signed cert, not the Gateway).
- `journalctl -u k3s` (last 20 min) showed no OIDC/JWKS errors yet. The apiserver still holds
the keys it cached before the flip, so the failure is latent until a k3s restart or key rotation.
- Neither node has cloud-init (`/etc/cloud` absent), so nothing rewrites `/etc/hosts` at boot.
- `--check --diff --tags hosts --limit k3s-prod-2,k3s-prod-3`: each node gets exactly the
three-line marked block `192.168.2.20 keycloak.home.keithjackson.dev`.
- Outside-in, PR #40 works: check-host.net probes from 3 external nodes got `200 OK` from
`https://plex.home.keithjackson.dev/identity` at `136.51.115.252`.
## What I did NOT verify
- **k3s-prod-1**: Ansible cannot reach it. SSH host key verification fails (`known_hosts:94`,
ED25519 `SHA256:zgUS8OeWznzCX9hlN7XdZ8iLNkU1G2loXjtJFfEUYpE`), which is consistent with
the 2026-09-11 SSD replacement and reinstall. The operator must confirm the fingerprint
before the pin can be applied there.
- The playbook has not been applied for real. It is an operator run after merge:
`ansible-playbook playbooks/node-baseline.yml -e k3s_hosts=k3s_prod --tags hosts`.
- An end-to-end kubectl OIDC login after the pin (needs a browser).
@@ -0,0 +1,129 @@
---
date: 2026-10-03
branch: feat/plex-remote-access-l4
title: Plex remote access — raw tcp/32400 via a pinned LoadBalancer VIP, not the L7 Gateway
---
## What changed
Reported symptom: users cannot reach Plex from outside the LAN. **Two independent causes**, measured
rather than inferred:
1. **Plex advertised no remote connection at all.** Live `Preferences.xml` on prod:
`customConnections` **ABSENT**, `ManualPortMappingMode` **ABSENT**, while
`PublishServerOnPlexOnlineKey="1"` — publishing was on and there was nothing reachable to publish.
Plex's automatic UPnP/NAT-PMP path cannot work from a pod on the Cilium overlay.
2. **Nothing from the WAN reached the cluster.** `136.51.115.252:32400` refused;
`136.51.115.252:443` answered with a **self-signed router cert** (`C=ZZ, CN=%D`), not the
Gateway's LE wildcard. The Plex Service was `ClusterIP` only — no off-cluster path to 32400 by
any route.
This branch fixes the in-cluster half. **Remote access does not work until the operator also does
two manual steps** (`runbooks/plex-remote-access.md`): the WAN tcp/32400 port-forward, and ticking
"manually specify public port" in the Plex UI.
- **`apps/wave-0/plex-remote.yaml` (new, hand-written).** A `type=LoadBalancer` Service on tcp/32400
pinned to `${PLEX_L4_VIP}` via `lbipam.cilium.io/ips`, plus a `CiliumNetworkPolicy`
(`plex-allow-remote-32400`) admitting `world`/`cluster`/`host`/`remote-node` to 32400. Non-catalog
because `schemas/servicedefinition.schema.json` is `additionalProperties: false` and has no field
for a LoadBalancer Service or a pinned VIP — the same reason `apps/wave-0/pihole-dns.yaml`,
`platform/crafty/service-l4.yaml` and `apps/vms/unifi/50-service-l4.yaml` are hand-written.
- **`catalog/render.py`:** an `EXTRA_UNITS` entry (`plex-remote`, anchored to `plex`, `above: False`)
so `--emit-waves` places the unit in plex's own wave.
- **`clusters/base/cluster-vars.yaml`:** new `PLEX_L4_VIP` (dev default `192.168.1.57`), plus the
substitution inventory comment updated to name `plex-remote: PLEX_L4_VIP`.
- **`clusters/prod/kustomization.yaml`:** prod override `PLEX_L4_VIP: 192.168.2.24`.
- **`apps/wave-0/kustomization.yaml`:** `plex-remote.yaml` added to `resources`.
- **`runbooks/plex-remote-access.md` (new):** the two manual steps, the four-step verification, why
no alert is possible, and the two documented warts below.
**`ADVERTISE_IP` was deliberately NOT set.** Setting it to `https://plex.home.keithjackson.dev:443`
was the alternative — it needs no new WAN hole and the mechanism was verified working on an
already-claimed server. **The operator chose the native path (2026-10-03)** so Plex terminates its own
TLS (`*.plex.direct`) and streams bypass the Envoy L7 hop. `catalog/plex.yaml`'s deferral note for
`ADVERTISE_IP` remains accurate and untouched.
**`externalTrafficPolicy: Cluster`, with a known cost.** `Local` would preserve the client IP, but
Cilium's L2 announcer does not follow the backend pod — the wart that cost this LAN an 8-day
Minecraft outage (see `platform/crafty/service-l4.yaml`). Consequence accepted and documented: SNAT
puts the client in `192.168.0.0/16`, inside `ALLOWED_NETWORKS`, so **Plex classifies remote streams
as LAN**. That is a metering effect (remote bandwidth limits will not bind), not an authorization one.
**SENSITIVE PATHS — this PR touches `clusters/**` (two files), so `ci/approval-policy.sh` will BLOCK
it.** It needs the operator's `/approve-override <reason>` posted as a PR **review** of type
"Comment". I have deliberately not posted it: CLAUDE.md §1 forbids an agent clearing this on its own
PR, and the agent account holds `owner`, so the prohibition is a rule, not a limit.
## What I verified
All measurements against live prod, 2026-10-03, read-only.
- **Plex's advertised state**, the finding this branch rests on: `customConnections=<ABSENT>`,
`ManualPortMappingMode=<ABSENT>`, `ManualPortMappingPort=<ABSENT>`,
`PublishServerOnPlexOnlineKey="1"`, `allowedNetworks="10.0.0.0/8,192.168.0.0/16"`. Read by
attribute grep, never by dumping `Preferences.xml` (it holds `PlexOnlineToken`).
- **The L7 Gateway path works and is NOT the problem.** Via the Gateway VIP,
`GET https://plex.home.keithjackson.dev/identity` → `HTTP 200`, `claimed="1"`, real
`machineIdentifier`. HTTPRoute `plex-32400`: `Accepted=True`, `ResolvedRefs=True`.
- **Plex enforces its own auth**, which is what makes an unfiltered WAN port defensible:
`/library/sections`, `/status/sessions`, `/:/prefs` all → **401** unauthenticated through the
Gateway.
- **The SNAT/allowedNetworks wart is real, not theoretical.** A tagged probe through the Gateway was
logged by Plex as `[10.0.2.214:36040 (Allowed Network (WAN))]` — the Envoy pod IP, classified as an
allowed network.
- **WAN state:** `136.51.115.252:32400` → connection refused. `136.51.115.252:443` → self-signed
cert `C=ZZ, ST=Somewhere, O=%D342e7e6b, CN=%D`. Public DNS resolves correctly:
`plex.home.keithjackson.dev` → CNAME `wan.home.keithjackson.dev` → `136.51.115.252`.
- **`192.168.2.24` is free in-cluster.** `CiliumLoadBalancerIPPool default-pool`: IPsTotal 11 /
IPsUsed 4 / IPsAvailable 7; the only allocations are `.20` (cilium-gateway-shared), `.21`
(unifi-l4-*), `.22` (crafty-l4-*), `.23` (pihole-dns-*). Not a node address (`.10/.11/.12`) and not
the kube-vip control-plane VIP (`.9`).
- **The manual-port-mapping step genuinely cannot be automated.** Grep of the running image's whole
init surface (`/etc/cont-init.d`, `/plex-common.sh`, `/usr/local/bin`) for `ManualPortMapping` and
`PLEX_PREFERENCE` → **NONE**.
- **`ADVERTISE_IP` would have worked on a claimed server** (recorded because the runbook's
"why not" rests on it): `setPref "customConnections"` at line 126 of `40-plex-first-run` sits
**outside** the `PLEX_CLAIM`/`PlexOnlineToken` guard, and the `/.firstRunComplete` early-exit
marker is on the **overlay** FS, not the `/config` PVC, so the script re-runs every pod start.
- **Toolbox gate** (`./infra/devcontainer/dev.sh run bash -c './ci/gate.sh'`): **rc 3**, with
`spec-immutability`, `decisions-log`, `lint`, `l0`, `render-golden`, `l1` and `approval-policy` all
**pass**. The rc 3 is two environmental skips — `gitea-settings` (no local `SETTINGS_API_TOKEN`)
and `conformance` L2/L3 (`CLUSTER_AVAILABLE` unset). **Not green. Reported as rc 3, not as pass.**
- **`render-golden` passing is the specific proof** that the `render.py` `EXTRA_UNITS` change, the new
hand-written unit and the edited wave kustomization are mutually consistent.
## What I did NOT verify
- **THE ACTUAL FIX. Nothing in this branch has been proven to make remote access work** — it cannot
be, because both remaining steps are off-repo and manual (router forward, Plex UI toggle). This
branch removes two blockers and adds none; it does not demonstrate an outcome.
- **Outside-in reachability, at all.** Every probe above was taken from inside the LAN, so the
`:443` self-signed cert strictly proves only that there is **no NAT hairpin** — it does **not**
prove outside-in failure. A router cert on WAN:443 is suggestive (its management UI would shadow a
forward), but unproven. **This repo has no off-LAN vantage point.** Test 3 in the runbook
(app.plex.tv from a cellular connection) is the only honest check.
- **`192.168.2.24` was never ARP-probed off-cluster.** Only in-cluster pool accounting was checked.
`.23` was `arping`-probed before it was claimed; `.24` was not, so an off-cluster squatter would
not have been caught.
- **The LoadBalancer has never been reconciled.** `plex-l4-tcp` does not exist in prod yet, so
LB-IPAM has not actually assigned the pinned VIP, L2 announcement has not been observed for it, and
the new CiliumNetworkPolicy has never admitted a real packet. Whether `world`/`host`/`cluster`/
`remote-node` is the correct entity set **under this SNAT path** is reasoned from
`platform/crafty/networkpolicy.yaml`'s working game-port rule, **not measured**.
- **Whether Plex's remote path needs anything beyond the manual port tick.** If plex.tv still lists
no remote connection after both manual steps, this branch is necessary-but-insufficient.
- **The CI approval-policy outcome.** The local stage reported green, but that is an offline N/A, not
a verdict: this PR touches `clusters/**`, so CI will block it pending an override.
- **PRE-EXISTING DRIFT I FOUND AND DELIBERATELY LEFT ALONE — worth its own follow-up.** Running the
documented `python3 catalog/render.py --emit-waves` regenerates the wave kustomizations and wants to
add **`vm-demo.yaml`** to wave 0 and **`keycloak.yaml`** to wave 1. Both are listed as
intentionally not onboarded in `ci/render-golden.sh`
(`RENDER_GOLDEN_NOT_ONBOARDED="keycloak vm-demo"`); their manifests are tracked in `apps/` but
deliberately absent from the `resources` lists so Flux does not apply them. `--emit-waves` places
any file present on disk and has **no awareness of that exclusion**, while `render-golden.sh` uses
`--wave-layout` and compares rendered manifests only — it never checks kustomization `resources`,
which is why this has survived unnoticed. **So the header "DO NOT hand-edit: re-run
`render.py --emit-waves`" is currently unsafe advice**: following it onboards an IdP and a KubeVirt
VM. I therefore restored both kustomizations and hand-added only my one line. I did not fix
`--emit-waves`, and I have not determined how long the drift has existed or whether either service
is *meant* to be onboarded.
@@ -0,0 +1,73 @@
---
date: 2026-10-03
branch: feat/public-dns-wan-target
title: Public DNS now points at the WAN — Gateway-published names CNAME to an in-cluster DDNS record
---
## What changed
The operator closed the open "public-target gap" recorded in
`platform/externaldns/helmrelease.yaml`. The WAN NAT / port-forwarding (80/443 → Gateway VIP
192.168.2.20) was done by the operator outside this repo.
Operator decisions (2026-10-03):
1. **Scope: every Gateway-published name goes public.** That covers the five `exposure: public`
apps (plex, gitea, keycloak, nextcloud, seerr) and also the hand-authored admin UIs (auth,
crafty, grafana, headlamp, the `home.keithjackson.dev` apex). `internal` services still publish
nothing: their `controller: none` route annotation is checked before the target is read.
2. **The WAN IP is kept current in-cluster**, not hardcoded.
Implementation:
- `platform/gateway/gateway.yaml`: `external-dns.alpha.kubernetes.io/target: wan.${BASE_DOMAIN}` on
the shared Gateway. Every gateway-sourced record changes from `A 192.168.2.20` to
`CNAME wan.home.keithjackson.dev`.
- `platform/externaldns/ddns.yaml` (new): `favonia/cloudflare-ddns:1.17.1` Deployment in the
`external-dns` namespace. It reuses `cloudflare-api-token` and keeps `wan.${BASE_DOMAIN}` an
unproxied IPv4 A record at the WAN IP (detected via Cloudflare trace, checked every 5 min,
`DELETE_ON_STOP=false`). external-dns has no TXT registry entry for it, so it never owns or
deletes it.
- The helmrelease comment block and the README now describe the decision instead of the gap.
Known consequence: **k3s nodes resolve through public DNS** (`node_baseline_dns_servers` = 8.8.8.8 /
1.1.1.1). The kube-apiserver's OIDC issuer `keycloak.home.keithjackson.dev` therefore resolves to the
WAN IP from the nodes, and kubectl SSO works only if the router hairpins WAN:443 back to the Gateway.
A LAN-side probe of `136.51.115.252:443` on 2026-10-03 returned a **self-signed placeholder cert**,
not the Gateway's Let's Encrypt wildcard. That suggests no hairpin. The cert-based admin kubeconfig
is unaffected.
## What I verified
- Live prod, 2026-10-03, before the change: Gateway `gateway/shared` ADDRESS `192.168.2.20`.
External-dns args include `--source=gateway-httproute --source=service --policy=sync
--txt-owner-id=prod --domain-filter=keithjackson.dev`, and it logs "All records are already up to
date".
- Public answers at 1.1.1.1: plex/gitea/keycloak/grafana/auth/apex → `192.168.2.20`;
`crafty-mc` → `.22` and `unifi` → `.21` (service source, not affected by this change); jackett →
none (internal, correctly unpublished).
- The authority (betty.ns.cloudflare.com) has no unprefixed TXT, AAAA or MX at `plex.` or the apex,
so the A→CNAME switch has no co-existing record to collide with.
- WAN IP from the workstation: `136.51.115.252`.
- No CiliumNetworkPolicy or NetworkPolicy in `external-dns`. The Kyverno label and default-deny
policies match only `app-namespace` namespaces. The vpn egress policy selects only
`egress-class: vpn` pods.
- Toolbox gate result: see the PR description (run after this commit).
## What I did NOT verify
- **The outside-in path.** I have no vantage point outside the LAN. Whether
`https://<svc>.home.keithjackson.dev` from the internet reaches the Gateway with the LE cert is
UNVERIFIED.
- **Hairpin / kubectl SSO after the flip.** Likely broken per the probe above. Fix candidates: a
node `/etc/hosts` pin for `keycloak.${BASE_DOMAIN}` → Gateway VIP via `node_baseline`, or router
NAT reflection.
- **The record-type flip itself**, until Flux reconciles: whether Cloudflare accepts external-dns's
create-CNAME in the same batch as the delete-A, or converges one interval later.
- `favonia/cloudflare-ddns` under this pod securityContext. The README warns that
`no-new-privileges` misbehaves on some Proxmox-style hosts. These are bare-metal nodes, but it is
untested until the pod runs.
- Whether the L4 service-source names (crafty-mc, unifi) should also go public. Not decided, not
changed.
- `conformance/tests/l0-static/internal-services-publish-no-public-dns/check.sh` header lines 39–40
still describe the target as open. That is a sensitive path, so it is left for a follow-up.
@@ -0,0 +1,157 @@
---
date: 2026-10-04
branch: feat/hubble-flow-export-plex
title: Record the pre-SNAT client address for Plex via Hubble static flow export, instead of breaking externalTrafficPolicy to get it
---
## What changed
Operator requirement, narrowed explicitly: **this is 100% about log visibility** — knowing which
address connected to Plex. Not bandwidth metering, which does not matter here.
**The problem, measured.** Plex's own log cannot show it. Every LoadBalancer Service in this cluster
is `externalTrafficPolicy: Cluster`, so the node holding the L2 lease for the VIP SNATs the client
before forwarding to the backend pod:
| Measured 2026-10-04 | Value |
|---|---|
| Node announcing `192.168.2.24` | `k3s-prod-3` (also holds `.20` Gateway, `.23` pihole-dns) |
| Node running the Plex pod | `k3s-prod-1` (`10.0.0.135`) |
| Sources in Plex's log | **3,214 × `10.0.1.x`**, 105 × `10.0.2.x`, 120 × loopback |
| `192.168.x` sources in Plex's log, ever | **0** |
| `X-Forwarded-For` in Plex's log | **0** (it serves raw tcp/32400, not HTTP via the Gateway) |
| `10.0.1.78` identity (`cilium-dbg bpf ipcache`) | `identity=1` → `reserved:host` = prod-3 itself |
**Nothing on the router is involved** — the operator correctly pointed out there is no hairpin NAT
here. The rewrite is entirely in-cluster, done by Cilium's BPF load-balancer on the lease holder,
because the backend pod is on a different node.
**The address is not lost, only unrecorded.** Cilium observes the flow at ingress, *before* its own
translation, so Hubble already holds the true source:
192.168.2.133 -> 10.0.0.135 (real LAN client -> the Plex pod)
10.0.1.78 -> 10.0.0.135 (the same traffic post-SNAT — what Plex sees)
What was missing is **retention**: the ring buffer was **4095/4095 flows at ~303 flows/s — about
thirteen seconds of history** — with hubble metrics disabled and no exporter configured.
So: enable the static flow exporter, scoped to Plex's port, writing to the agent's stdout.
- **`platform/cilium/helmrelease.yaml`** (authoritative): `hubble.export.static.enabled: true`,
`filePath: stdout`, `allowList` of `{"destination_port":["32400"]}` and
`{"source_port":["32400"]}`.
- **`platform/cilium/values.yaml`** (reference mirror) and
**`infra/ansible/roles/cilium/templates/cilium-values.yaml.j2`** (the `[parity]` source of truth):
the same block, so a bootstrap render does not differ from what Flux reconciles — a mismatch would
be a permanent Helm diff and an avoidable agent rollout.
**`filePath: stdout`, not a file,** because Grafana Alloy already runs as a DaemonSet tailing every
pod's logs into Loki (`platform/monitoring/alloy.yaml`). stdout therefore reaches Loki with **no new
hostPath mount, no file-rotation handling, and no Alloy change at all**. Upstream documents the
value: *"To get Hubble flows directly exported to the logs instead of written to a rotated file,
`stdout` can be defined as `hubble-export-file-path`."* Query:
{namespace="kube-system", app="cilium"} |= "32400"
**SCOPED BY PORT, NOT BY NAMESPACE — a measured decision, not a preference.** A
`--to-namespace plex` query returned **only the post-SNAT flows**; the flow carrying the real client
address did not match it, because at the point of observation the destination identity is not yet
resolved to the plex pod. A namespace filter would have dropped exactly the record this change
exists to capture.
**WHY NOT FIX THE SNAT INSTEAD — both alternatives rejected on evidence.**
- `externalTrafficPolicy: Local` would put the real address in Plex's own log, but cilium 1.20's L2
announcer is **explicitly incompatible** with it. Upstream docs for this exact version:
*"incompatible with the `externalTrafficPolicy: Local` on services as it may cause service IPs to
be announced on nodes without pods causing traffic drops"* and *"L2 announcements isn't currently
aware of this setting"*. Live proof it is not theoretical: the VIP is announced by prod-3 while the
pod runs on prod-1, so the flip would black-hole tcp/32400 **immediately**. Making it safe means
pinning both the pod and the announcement to one node and surrendering Plex's ability to
reschedule — a real availability loss to buy a log field. Same trap
`platform/crafty/service-l4.yaml` documents from an 8-day Minecraft outage.
- **DSR** also preserves the client address, but `routing-mode` here is **vxlan**, not
native/geneve, and DSR returns bypass the ingress node, which breaks the SOHO router's stateful
NAT on the remote path. Cluster-wide blast radius across all eight LB Services for one service's
logging.
**A correction to the repo's own record.** `decisions/2026-10-03-plex-remote-access-l4.md` states the
SNAT puts the client inside `192.168.0.0/16` (the ingress node's LAN address), and I repeated that in
the previous entry. **It is wrong**: measured, the SNAT source is `10.0.1.x` — the node's
`cilium_host` inside the pod CIDR. This matters, because it means `LanNetworksBandwidth` can never
discriminate local from remote while eTP is `Cluster`: `10.0.0.0/8` must be in the LAN set for the
in-cluster consumers (Seerr) to count as local, and every external client arrives in that same range.
PR #48's LAN definition therefore fixes the Remote badge by making *everything* local — acceptable
only because metering is explicitly not a goal here.
## What I verified
Live prod, 2026-10-04, read-only.
- **Every measurement in the table above**, including the VIP-lease-to-node map
(`cilium-dbg shell -- db/show l2-announce` on all three agents) and the pod's node.
- **Hubble already carries the pre-SNAT source** — the single finding this whole approach rests on:
`hubble observe --port 32400` on the lease holder returned `192.168.2.133 -> 10.0.0.135` **and**
its return flow, alongside the post-SNAT `10.0.1.78 -> 10.0.0.135`.
- **The retention gap is real:** `cilium-dbg status` reported `Hubble: Ok Current/Max Flows:
4095/4095 (100.00%), Flows/s: 303.62 Metrics: Disabled`, and the `cilium-config` ConfigMap
contains no `hubble-export-*` key at all.
- **The namespace-filter trap**, directly: `--to-namespace plex` returned only `10.0.1.78` and
`10.0.1.71`; the `192.168.2.133` flow was absent. This is why the allowList is port-scoped.
- **All eight LoadBalancer Services are `eTP=Cluster`** (crafty ×2, gateway, pihole-dns ×2, plex,
unifi ×2) — so this is a cluster-wide pattern, not a Plex-specific choice.
- **The eTP:Local incompatibility is upstream-documented for v1.20 specifically**, quoted above from
the docs for the running version — not inferred from the crafty incident.
- **`routing-mode: tunnel`** and **`bpf-lb-mode-annotation: false`** in the live `cilium-config`,
which is what rules DSR out.
- **The chart's value paths and defaults**, read from cilium v1.20.1's own `values.yaml`:
`hubble.export.static.{enabled,filePath,fieldMask,fieldAggregate,aggregationInterval,allowList,denyList,fileMaxSizeMb,fileMaxBackups,fileCompress}`,
with `filePath` defaulting to `/var/run/cilium/hubble/events.log`. The keys used here exist.
- **Alloy's pipeline shape**, read from `platform/monitoring/alloy.yaml`: a DaemonSet with
`loki.source.kubernetes "pods"` → `loki.process` → `loki.write` at
`http://loki.monitoring.svc.cluster.local:3100`. It already tails kube-system pods, which is why
stdout needs no Alloy change.
- **All three value files agree** (one `destination_port` occurrence each) and both YAML files parse,
with `export.static` resolving to the intended object.
- **Toolbox gate**: **rc 3**, with `spec-immutability`, `decisions-log`, `lint`, `l0`,
`render-golden`, `l1` and `approval-policy` all **pass**; rc 3 is the two known environmental skips
(`gitea-settings` — no local `SETTINGS_API_TOKEN`; `conformance` L2/L3 — `CLUSTER_AVAILABLE`
unset). **Not green. Reported as rc 3.**
- **No sensitive paths touched** — `platform/cilium/**` and `infra/ansible/**` are not in
`infra/gitea/approval-policy.json`, so this needs no approval override, unlike PR #48.
## What I did NOT verify
- **THE OUTCOME. Nothing has been reconciled and no flow has ever been exported.** `cilium-config`
still has no `hubble-export-*` key. Every claim is about inputs.
- **Whether `filePath: stdout` is accepted as written.** This is the single largest risk. The value
comes from a verbatim upstream doc sentence (*"`stdout` can be defined as
`hubble-export-file-path`"*), but I did not confirm the exact notation in cilium 1.20.1's source,
and the chart default is a real filesystem path. If the literal string is not special-cased, the
agent may create a FILE named `stdout` in its working directory and nothing reaches Loki — a
silent no-op, not a crash. **Fallback if so:** leave `filePath` at the chart default and add a
`local.file_match` + `loki.source.file` target to Alloy with a hostPath mount for
`/var/run/cilium/hubble`.
- **Whether the FlowFilter JSON is accepted.** `{"destination_port":["32400"]}` follows the proto
(`destination_port` is a repeated string) and the documented shape (`'{"verdict":["DROPPED"]}'`),
but upstream gives **no port example** and I did not validate it against the running agent. A
malformed filter could be rejected — or, worse, be silently treated as "no match" and export
nothing.
- **THIS CHANGE ROLLS CILIUM.** Editing the HelmRelease restarts the agent DaemonSet across all
three nodes. BPF maps are preserved so established traffic should survive, but prod-3 currently
announces the Gateway VIP, **PiHole's DNS VIP** and Plex's VIP, so a lease change during the
rollout could briefly interrupt LAN DNS for the whole house. Not measured, and worth doing at a
quiet moment.
- **Log volume in practice.** Estimated "a few hundred to a few thousand lines a day" from the
observed request counts; never measured as flows. Both directions are exported and no `fieldMask`
is set, so each record is a full flow object. If it is noisy, narrow with `fieldMask` rather than
by dropping a filter.
- **Loki's retention for this data**, and whether the `{namespace="kube-system", app="cilium"}` label
set actually matches (it depends on the cilium pods carrying
`app.kubernetes.io/name`, which Alloy maps to `app` — I did not confirm that label exists on the
cilium DaemonSet pods). The query in the comment may need adjusting to `pod=~"cilium-.*"`.
- **That the exported flow actually contains the pre-SNAT address.** Hubble's *live* stream does
(measured). I am assuming the exporter sees the same flow objects; I did not confirm the exporter
is not fed a post-translation view.
- **The parity convention has no automated check.** I kept all three files in sync by hand because
the comments demand it; nothing in `ci/` or `conformance/` verifies cilium Helm↔Ansible parity, so
a future edit can still drift them silently.
@@ -0,0 +1,155 @@
---
date: 2026-10-04
branch: fix/oauth2-sidecar-metrics-scrape-netpol
title: The forward-auth gate sidecars' /metrics was NetworkPolicy-blocked — the renderer now opens 44180 to ns monitoring
---
> **Added 2026-10-05, after merge:** the top item under *What I did NOT verify* below — "that the
> scrape now succeeds" — **has since been verified on prod**. All 6 targets read `up == 1`. The
> original text is left exactly as written; the measurements are in
> [[2026-10-05-oauth2-sidecar-scrape-verified]].
## What changed
`catalog/render.py`'s `r_monitoring_ingress_policy` now emits its CiliumNetworkPolicy for a
**second** reason: the forward-auth gate sidecar's own `/metrics` port (44180), keyed on
`_needs_oauth2_sidecar(s)`. Previously it fired only from `observability.metricsEndpoint`.
That matters more than it sounds, because **no ServiceDefinition in this catalog declares a
`metricsEndpoint`** (measured: zero grep hits across `catalog/*.yaml`). So the function was wired
in at the call site and had **never emitted a single object on any branch** — correct, and
entirely latent. Its presence in the tree read as "scrape ingress is handled". It was not.
Re-rendered `apps/` from that change: five new CNPs, one per forward-auth app
(`jackett`, `pihole`, `qbittorrent`, `radarr`, `sonarr`), each opening **only** 44180 to **only**
`fromEndpoints: [k8s:io.kubernetes.pod.namespace: monitoring]`.
The bug being fixed: `platform/oauth2-proxy/podmonitor.yaml` landed 2026-10-02T04:58:44Z and
discovered 6 targets that have **never once scraped successfully**. Each app namespace ships a
`default-deny` NetworkPolicy with `policyTypes: [Ingress, Egress]` and **no `ingress` key at all**
— deny-all-ingress in NetworkPolicy semantics — and the only ingress allowance is
`<app>-allow-gateway-ingress`: `fromEntities: [ingress]` to port 4180. Prometheus matched no
clause, so its packets were dropped.
Two deliberate choices, both recorded in the function's docstring:
- **Clause 2 keys on `_needs_oauth2_sidecar`, not on `observability.metrics`.** It has to match
the condition the *scrape* keys on: `podmonitor.yaml` selects pods by the
`homelab.keithjackson.dev/auth-mode: forward-auth` pod label and nothing else, so a target
exists iff the sidecar exists. Keying on `observability.metrics` would let `metrics: false`
produce a discovered-but-blocked target — the same "two halves authored apart" failure this
function exists to prevent, moved one field over.
- **The policy is rendered here, not added to `platform/oauth2-proxy/`.** podmonitor.yaml's own
header records why that tier cannot host it: it would name app namespaces created by the
*sibling* `apps-wave-0/1` tiers, so it would apply on a running cluster and fail on a cold
bootstrap. Rendered per-app it ships in the same tier that creates the namespace.
## What I verified
Measured on prod 2026-10-04, read-only, via the pinned toolbox:
- **The cause, not a guess.** All 6 sidecar targets in pool
`podMonitor/oauth2-proxy/oauth2-proxy-sidecars/0`: `health=down`,
`lastError: context deadline exceeded`, `lastScrapeDuration` exactly `10.0s` — the configured
`scrapeTimeout`. Hitting the timeout precisely means packets **dropped, not refused**.
- **The listener is fine.** jackett's `oauth2-proxy` container carries
`--metrics-address=0.0.0.0:44180` and a named port `metrics: 44180`.
- **The deny is universal.** All six namespaces (`jackett radarr sonarr qbittorrent pihole
crafty`): `default-deny` with `ingress` key absent, `nIngress=0`; the only ingress CNP allowance
is 4180 `fromEntities: [ingress]`. **Zero** namespaces had any `-allow-monitoring-scrape` object.
- **Frequency.** Single continuous episode, no flapping: `ALERTS_FOR_STATE` = 229343s (63.7h),
firing since 2026-10-02 05:09 UTC — 11 minutes after the PodMonitor was created, i.e. TargetDown's
`for: 10m`. A 15-day `query_range` shows **1 episode** per namespace, not many. Alertmanager:
`group_by: [alertname, namespace]`, `repeat_interval: 12h` on `email-warning` → 5 TargetDown
groups = 10 emails/day, plus 6 `OAuth2ProxyGateUnobserved` groups = 12/day, ~22/day total.
0 silences.
- **The re-render is deterministic and the diff is exactly the intended one.** `apps/` is
byte-identical to `render.py --all catalog -o apps --wave-layout --no-image-automation`
(12/12 SAME before my edit; the 11-file "drift" against a default render is solely the
ImageRepository/ImagePolicy pair, which `apps/` is generated without). After the edit:
5 files changed, +21 lines each, nothing else touched.
- `render.py --selftest`: **PASS**.
- **Three L1 goldens needed regenerating, and the diff is +63 lines / -0.** The first gate run
caught `container-workload-render` (R-PLAT-02) and `egress-class-render` (R-NET-05/06/07) as
FAIL with exactly the new CNP as the drift. Regenerated with the same invocations the checks
use (`render.py <fixture>`, no flags). Evidence the regen is faithful rather than a rubber
stamp: `default-deny-baseline-render`'s golden came back **byte-identical** (its fixture is not
forward-auth), and the other three gained only the one CNP, port 44180, ns monitoring.
- Toolbox gate `./infra/devcontainer/dev.sh run bash -c './ci/gate.sh'`: **rc 3 — UNDETERMINED,
NOT rc 0, and I am not reporting it as green.** Every stage that ran is green
(spec-immutability, approval-policy, decisions-log, lint, l0, render-golden, l1); `l1` went
FAIL -> pass once the goldens were regenerated. The gate's own words: "Stages that did not run:
gitea-settings" — skipped for want of `GITEA_SETTINGS_TOKEN`, which is an environment gap on
every local run and unrelated to this change. L2/L3 conformance is a `[warn]`, not a not-run
stage: UNVERIFIED for all 8 touched requirements (R-GITOPS-02 R-IDP-02 R-IDP-06 R-NET-01
R-NET-05 R-NET-06 R-NET-07 R-PLAT-02), no cluster.
- `--emit-waves` was **not** run (it re-onboards `vm-demo` + `keycloak`); only the per-service
render path was used, so no wave kustomization changed.
## This PR needs a human approval (sensitive path) — MEASURED, not predicted
CI run #230 on PR #49, head `f9446be3`: **`MERGE GATE: BLOCKED`, and `approval-policy` is the ONLY
failing stage.** Read from the job log, not from the status tick:
[skip] stage spec-immutability: SKIPPED (not run) <- sibling spec repo absent in CI; expected
[ ok ] stage decisions-log: pass
[ ok ] stage lint: pass
[ ok ] stage l0: pass
[ ok ] stage render-golden: pass
[ ok ] stage l1: pass
[fail] stage approval-policy: FAIL
[ ok ] stage gitea-settings: pass <- could NOT run locally; green in CI
[skip] stage conformance: SKIPPED (not run)
sensitive paths touched:
conformance/tests/l1-rendering/container-workload-render/golden/expected.yaml
conformance/tests/l1-rendering/egress-class-render/golden/egress-internet.expected.yaml
conformance/tests/l1-rendering/egress-class-render/golden/egress-vpn.expected.yaml
Exactly the three regenerated goldens, nothing else. `l1` and `render-golden` both pass in CI,
which is the independent confirmation that the regenerated goldens are right rather than merely
self-consistent with my local run.
One local-reproduction note worth recording, because it wasted a step: running
`PR_NUMBER=49 SETTINGS_API_TOKEN=... ci/approval-policy.sh` with the credential from
`git credential fill` reports `could not determine PR author — BLOCKING`. That is an **artifact**,
not a finding — `~/.git-credentials` holds a *password*, and `Authorization: token <password>`
returns 401 `user does not exist [uid: 0]`. The stage needs a real API token. I nearly reported
that 401 as the CI failure; the job log is what settled it.
Regenerating the L1 goldens means this branch touches `conformance/**`, which is in
`sensitive_paths` in `infra/gitea/approval-policy.json` ("the tests and the harness; changing them
changes what green MEANS"). So `ci/approval-policy.sh` will require an approving review from a
non-author, and the local gate **cannot** see that: it reports `approval-policy: green` because
offline it evaluates N/A.
The golden update is not optional — a renderer change that adds an object necessarily drifts the
goldens that pin the renderer's output — but it does mean the gate correctly refuses to
self-approve this one. **An agent must not clear this with `/approve-override`**, even though the
`gitea-admin` account holds `owner`: that is precisely the self-approval the stage exists to
prevent. The operator posts the override as a PR *review* of type "Comment", or approves normally.
## What I did NOT verify
- **That the scrape now succeeds.** This is a git-only change and nothing is applied until Flux
reconciles `main`. The 5 CNPs have never existed on the cluster, so `up == 1` for those targets
is **UNVERIFIED** — it is a prediction from the measured drop signature, not an observation.
After merge, confirm `up{container="oauth2-proxy"}` goes to 1 for all 6 targets and that the 11
alerts resolve. `send_resolved: true` is set, so expect ~11 resolved emails.
- **That the CNP `endpointSelector` matches pihole's pods.** It selects
`app.kubernetes.io/name: pihole`, identical to the shape of `pihole-allow-gateway-ingress`
which demonstrably works for 4180 — so this is inference from a working sibling, not a
measurement of the new object.
- **`crafty` is still unobserved and will keep firing `OAuth2ProxyGateUnobserved`.** It is
hand-managed under `platform/crafty`, outside the renderer, and has **no `--metrics-address`
at all** — so there is no port to open and this change cannot help it. Separate work.
- **Whether 44180 is reachable in the Cilium data path once allowed.** Only the policy was
reasoned about; no L2 probe was run (CI has `vars.CLUSTER_AVAILABLE` unset, so L2/L3 did not
run here either — the gate proves the L0/L1 offline subset only).
- **Why `OAuth2ProxyGateUnobserved` started at 2026-10-04 06:44** rather than 10-02 with
TargetDown. Alertmanager did not restart (TargetDown's `startsAt` is still 10-02) and the rule's
`for` is 1h, so neither explains it. Something changed on the monitoring side that morning which
I did not identify. It does not affect this fix.
- I did not re-run a port-forward to 44180 to prove the endpoint serves *today*; I confirmed the
flag and named port on the live pod spec. The 200/10208-byte measurement is podmonitor.yaml's,
from 2026-10-01.
@@ -0,0 +1,133 @@
---
date: 2026-10-04
branch: feat/pihole-declare-state
title: PiHole's operator-set state is now declared in git — the prerequisite for running more than one replica
---
## What changed
Phase 1 of making LAN DNS survive a node failure. The operator asked for multi-replica PiHole;
measurement showed that cannot be done safely first, because PiHole's important state was not
reproducible from git. A second replica with a fresh PVC would have come up **serving DNS and
blocking nothing, with a different admin password** — answers varying by which pod replied. This
branch closes that; the replica work is phase 2 and is deliberately NOT here.
**The undeclared-state inventory, measured not guessed.** `pihole.toml` marks every non-default
setting `### CHANGED`, and those that came from the environment `### CHANGED (env)`. The complete
live list on 2026-10-04:
| Setting | Status |
|---|---|
| `dns.upstreams`, `dns.listeningMode`, `dns.rateLimit.count`, `misc.dnsmasq_lines` | `### CHANGED (env)` — already declared in `catalog/pihole.yaml` |
| `files.macvendor` | `### CHANGED` — set by the image itself (container path), not operator state |
| `webserver.api.pwhash` | **`### CHANGED` — set out of band. Declared NOWHERE.** |
So exactly **one** operator-set value lived only on the PVC. Separately, the **adlists** were also
undeclared: `gravity.db` held one list (StevenBlack's hosts) and 72,234 gravity domains, with nothing
in this repo naming it.
- **`apps/wave-0/pihole-bootstrap-secret.sops.yaml` (new, SOPS/age).** Secret `pihole-bootstrap`,
key `webui-password`. Named to the `<svc>-bootstrap-secret.sops.yaml` convention so
`render.py --emit-waves` places it with no renderer change. The value is a 32-char random password
generated at authoring time and **never printed to a transcript**.
- **`catalog/pihole.yaml`:** `FTLCONF_webserver_api_password` sourced from that Secret.
`webserver.api.password` takes CLEARTEXT and FTL hashes it itself — verified in the running image,
where `pihole setpassword` *is* `setFTLConfigValue "webserver.api.password"`, commented upstream
"pihole-FTL will automatically hash the password". The PVC's `pwhash` becomes a derived artefact.
- **`catalog/pihole.yaml`:** a `lifecycle.postStart` hook that **reconciles** the declared adlist set
into `gravity.db` on every container start — adds missing, re-enables disabled, and **disables**
(never deletes) anything enabled but undeclared, running `pihole -g` only when something moved.
Same level-triggered idiom, and the same reasoning, as `catalog/qbittorrent.yaml`'s postStart.
- **`apps/wave-0/pihole.yaml`, `apps/wave-0/kustomization.yaml`:** re-rendered / secret registered.
**Why a postStart hook and not a file.** PiHole v6 keeps adlists as DB rows. `/etc/pihole/adlists.list`
still exists in `gravity.sh` but is **migration-only**: its import sits inside `migrate_to_database()`
behind `if [ ! -e "$gravityDBfile" ]`, so it fires only while *creating* a database. A ConfigMap
mounted there would be silently ignored on every pod this cluster runs today. There is also no
`pihole adlist` CLI subcommand, so SQL is the actual interface; FTL ships an embedded shell
(`pihole-FTL sqlite3`) so nothing had to be added to the image.
**The password is kept rather than set empty, deliberately.** The admin UI is already behind the
oauth2-proxy sidecar (`--allowed-group=platform-admins`), so an empty password would have been
simpler. But the `pihole` Service still publishes **port 80** (PiHole direct, bypassing the proxy on
`:4180`) and only the CiliumNetworkPolicy closes it — and this repo has a documented default-deny
drift history. An unauthenticated admin UI that can rewrite LAN DNS should not rest on one policy
staying correct. Narrowing that Service port is follow-up, not done here.
**SENSITIVE PATHS — this PR adds a `**/*.sops.yaml`, so `ci/approval-policy.sh` will BLOCK it.** It
needs the operator's `/approve-override <reason>` as a PR **review** of type "Comment". Not posted by
me: CLAUDE.md section 1 forbids an agent clearing this on its own PR.
## What I verified
Live prod, 2026-10-04, read-only except where noted.
- **The undeclared-state inventory above** — read from `pihole.toml`'s own `### CHANGED` markers, with
the password value masked. This is the measurement the whole branch rests on.
- **A fresh `gravity.db` seeds NO adlists.** The image's own schema template
`/etc/.pihole/advanced/Templates/gravity.db.sql` creates the `adlist` table and contains no
`INSERT INTO adlist` at all — grepped in the running image. Confirmed empirically below (0 rows).
This is why the adlist declaration is load-bearing and not cosmetic.
- **The adlists.list path really is migration-only** — read the guard in `/opt/pihole/gravity.sh`
(`migrate_to_database()`, `if [ ! -e "$gravityDBfile" ]`).
- **`webserver.api.password` is a real settable key** — `pihole-FTL --config webserver.api.password`
returns a masked value, and `/usr/local/bin/pihole`'s `setpassword` sets exactly that key.
- **THE RENDERED HOOK ACTUALLY WORKS — all four paths, extracted from `apps/wave-0/pihole.yaml` and
run in the live pod against THROWAWAY COPIES of `gravity.db` in `/tmp`** (production `gravity.db`
was never written, and `pihole -g` was stubbed so no 70k-domain download could start):
1. *Steady state* → `already matches the declared set - nothing to do`. No writes, no rebuild.
2. *True fresh DB built from the image's schema template* → 0 adlists before; hook added the
declared list and triggered the rebuild. **This is the fresh-PVC/new-replica case.**
3. *An undeclared list enabled* → disabled it (`enabled=0`), left the declared one alone, and did
not delete the row.
4. *Declared list present but disabled* → re-enabled it.
- **Required tools exist in the image:** `bash`, `expr`, `grep`, `printf`, `sleep`, `pihole-FTL`.
- **The Secret is genuinely encrypted** to the repo's age recipient; `stringData.webui-password`
starts `ENC[`. The gate's `no-plaintext-secrets (R-SEC-01)` L0 check passes.
- **Schema:** `check-jsonschema` against `schemas/servicedefinition.schema.json` passes.
- **Render determinism:** the canonical
`render.py --all catalog -o apps --wave-layout --no-image-automation` changed **only**
`apps/wave-0/pihole.yaml`. `render-golden` passes, so the hook's text also satisfies
`assert_substitution_safe` (no braced dollar expansion — the Flux envsubst contract).
- **Toolbox gate:** rc **3**, with `spec-immutability`, `decisions-log`, `lint`, `l0`,
`render-golden`, `l1`, `approval-policy` all **pass**. The rc 3 is the two usual environmental
skips — `gitea-settings` (no local `SETTINGS_API_TOKEN`) and `conformance` L2/L3
(`CLUSTER_AVAILABLE` unset). **Not green; reported as rc 3.**
## What I did NOT verify
- **Nothing here has been reconciled.** Flux has not applied any of it, so the password has never
been set by this mechanism and the hook has never run during a real container start. Everything
above is the rendered artifact tested out-of-band, plus the image's own source.
- **THE CURRENT ADMIN PASSWORD WILL STOP WORKING, and that is the intent.** FTL re-hashes
`webserver.api.password` on start, overwriting the existing `pwhash`. Whoever knows the present
password (nobody, which is why this started) loses it; the declared one replaces it. I have not
observed that replacement happen.
- **Cold-start cost is unmeasured and could matter.** `postStart` must complete before the container
is reported Running. On a fresh PVC the hook waits for `gravity.db` (bounded, up to 180s) and then
runs a real `pihole -g` (72k domains, network downloads). `apps-wave-0` is `wait: true` and
`apps-wave-1` `dependsOn` it, so a slow cold start **delays the app tier**. The steady-state path
exits in about a second (scenario 1), so this is a rebuild/first-boot cost only — but it is not
measured, and the stub in testing means `pihole -g`'s real duration here is unknown.
- **Whether `pihole -g` succeeds from inside the hook's environment.** Its failure is caught and the
existing `gravity.db` retained, so a failure degrades rather than breaks — untested live.
- **Concurrency.** Nothing serialises the hook against FTL's own scheduled gravity update. SQLite
handles the locking, and the hook's writes are three small statements, but no interleaving was
exercised.
- **MULTI-REPLICA — PHASE 2, NOT STARTED.** This branch only removes the blocker. The remaining work,
and it is substantial: a `replicas`/placement field on the ServiceDefinition schema (currently
`additionalProperties: false` with no such field), `render.py` emitting a StatefulSet with
`volumeClaimTemplates` (the config PVC is **ReadWriteOnce**, so a 2-replica Deployment cannot
work), pod anti-affinity, a PodDisruptionBudget (there is none today), re-rendered goldens, and
`conformance/**` updates — the last making phase 2 sensitive-path as well. The PVC rename a
StatefulSet forces will discard the existing `gravity.db`, which is only safe **because** of this
branch, and should be done only after this one is confirmed working in-cluster.
- **The real risk the operator named is NOT fixed by phase 2 either.** Replicas address *node*
failure. LAN DNS still depends on the cluster as a whole — etcd quorum, Cilium, Longhorn, a bad
reconcile. Quantified on 2026-10-04: with `tolerationSeconds=300` plus node-NotReady detection
plus a Longhorn RWO force-detach, a failure of the node running the pod is roughly **6-10 minutes
of no LAN DNS**; a failure of the node holding the `pihole-dns-*` L2 lease (currently a
*different* node — lease on k3s-prod-2, pod on k3s-prod-1) is tens of seconds. An out-of-cluster
secondary resolver carrying the same `address=` lines is the only option that removes the
dependency, and it was considered and not chosen.
- **Port 80 on the `pihole` Service is still published** and still closed only by policy. Not narrowed.
+117
View File
@@ -0,0 +1,117 @@
---
date: 2026-10-04
branch: docs/pihole-ha-verified
title: PiHole HA is VERIFIED on live prod — including a failover drill with zero dropped DNS queries
---
## What changed
**No manifests changed. This entry exists to correct the log.** The three PiHole/Plex entries merged
earlier today each say, correctly at the time, that nothing had been reconciled and that the outcome
was unverified:
- `decisions/2026-10-04-pihole-declare-state.md` — "Nothing here has been reconciled."
- `decisions/2026-10-04-pihole-multi-replica.md` — "Nothing has been reconciled. No StatefulSet
exists, no second replica has ever run, the anti-affinity has never been evaluated..."
All three are now **merged, reconciled and measured**, so those sentences are stale in exactly the way
§2b of CLAUDE.md warns about — a reader who found them would conclude the work is unproven. This entry
is the current state; it does not edit the earlier files (separate files, nothing to merge).
Delivered and live as of 2026-10-04, from PRs #43 (plex tcp/32400), #44 (declare PiHole state) and
#45 (PiHole 2 replicas + the mountPath bug):
- PiHole is a **2-replica StatefulSet**, one pod per node, with per-replica Longhorn volumes, a
PodDisruptionBudget, and an `up` SLI that follows the rendered workload kind.
- PiHole's admin password and adlists are **declared in git** and reproduce onto a fresh volume.
- PiHole's config PVC is mounted where PiHole actually writes (`/etc/pihole`), which it was not before.
## What I verified
All measured against live prod on 2026-10-04, after the merge of #45 (`dce20b7`).
**Reconcile.** `GitRepository` artifact `main@sha1:dce20b7`; `apps-wave-0`
`lastAppliedRevision=main@sha1:dce20b7`, `Ready=True/ReconciliationSucceeded`. It completed in roughly
**90 seconds**, well inside the Kustomization's `timeout: 5m` — the risk flagged in the multi-replica
entry ("whether `pihole -g` finishes inside the 5 m timeout") did **not** materialise. A transient
`Ready=False/DependencyNotReady: platform-config` seen mid-flight was the dependency cascade, not a
failure; `platform-config` was already `Ready=True` at the new revision moments later.
**Topology and objects.**
| Measured | Value |
|---|---|
| pods / nodes | `pihole-0` → **k3s-prod-3**, `pihole-1` → **k3s-prod-2** (2/2 Running each) — the required anti-affinity was satisfied |
| per-replica claims | `config-pihole-0`, `config-pihole-1` — both `Bound`, 2Gi |
| old `pihole-config` PVC | **pruned** (it held only `lost+found`, so nothing was lost) |
| old `pihole` Deployment | **pruned** — `No resources found in pihole namespace` |
| PodDisruptionBudget | `minAvailable 1`, `disruptionsAllowed 1`, `currentHealthy 2` |
**The mountPath bug is fixed.** `df` inside both pods reports `/etc/pihole` on
`/dev/longhorn/pvc-...` with **6.9 M used** — previously it was on `overlay` while the Longhorn volume
sat unused at `/data/config`. `backup.policy: daily-offcluster` now has real content to back up
instead of reporting success over an empty volume.
**Phase 1's declarations reproduce onto a FRESH volume — the point of doing it first.** Both replicas
booted with an empty `/etc/pihole`:
- **72,234 gravity domains** on each, rebuilt from the adlist declared in `catalog/pihole.yaml`.
- **The declared SOPS secret authenticates on both pods.** `POST /api/auth` using the container's own
`FTLCONF_webserver_api_password` returned `"valid":true` on `pihole-0` **and** `pihole-1` — so
Secret → env → FTL's own hashing → working login, identically on both. (The secret's value was never
printed; an earlier reading of `pwhash` as "unset" was a quoting bug in the check, disproven by an
empty password being rejected with `password incorrect` and then by this positive test.)
**User-facing behaviour through the VIP (192.168.2.23), from a LAN host.**
plex.home.keithjackson.dev -> 192.168.2.20 split-horizon intact
home.keithjackson.dev -> 192.168.2.20
unifi.home.keithjackson.dev -> 192.168.2.21
google.com -> 142.250.115.102 recursion to 8.8.8.8 works
doubleclick.net -> 0.0.0.0 blocking LIVE in FTL, not just in the DB
googleadservices.com -> 0.0.0.0
12 consecutive queries -> 12/12 answered
**THE FAILOVER DRILL — observed by the operator, 2026-10-04.** A single StatefulSet replica was
deleted. It was recreated in **~30 seconds**, and **DNS never dropped a request** throughout. This is
the first direct evidence that the replica count delivers what it was added for, rather than merely
rendering correctly.
**The SLI is not inert, and re-deriving it mattered.** Measured in Prometheus:
`kube_statefulset_status_replicas_ready{namespace="pihole", statefulset="pihole"}` returns **1 series,
value 2**; `kube_deployment_status_replicas_available{namespace="pihole"}` now returns **0 series**;
and Prometheus has `pihole-down` loaded as `state=inactive health=ok` with the StatefulSet expression.
Had the rule stayed Deployment-shaped, its `or absent(...)` branch would have matched the now-absent
series and **fired permanently** — a standing false page rather than silence. That is the concrete
payoff of defaulting `livenessWorkload.kind` from the rendered kind.
## What I did NOT verify
- **NODE failure, as opposed to pod failure.** The drill deleted a pod, which does not exercise the
`tolerationSeconds: 300` path at all — that timer only applies when a node goes NotReady. The
mechanism protecting DNS is the same one just proven (the surviving replica plus
`externalTrafficPolicy: Cluster` on the DNS LoadBalancers), so user-visible impact should likewise be
nil; what the 300 s still delays is the *replacement* replica, and during that window there is no
redundancy left. Untested. Pulling power from a node is the only real test.
- **DNS during the cutover itself.** I was not sampling resolution while #45 reconciled, so whether
there was a brief gap between the Deployment being pruned and the StatefulSet becoming Ready is
**unmeasured**. The drill above covers the steady-state failover case, not that one-off transition.
- **Two-node loss.** The hard anti-affinity means `replicas: 2` needs two schedulable nodes; losing
two would leave a replica `Pending` and, with `wait: true`, stall the app tier. Reasoned, not
exercised — and it coincides with etcd quorum loss on a 3-node control plane.
- **Longhorn capacity headroom.** Two 2Gi claims at 3 replicas each is ~12Gi where there was ~6Gi.
Both claims are `Bound` and healthy; free space was not checked.
- **Query history is now split per replica** and the admin UI shows only whichever pod answered.
Adlists and password are identical, so blocking and auth are consistent; the *reporting* is not, and
whether that is acceptable long-term is the operator's call.
- **The residual risk is unchanged, and it is the larger one.** Replicas address node failure. LAN DNS
still depends on the cluster — etcd quorum, Cilium, Longhorn, a bad reconcile — and only a resolver
outside the cluster carrying the same `address=` lines removes that dependency. Considered and not
chosen (operator decision, 2026-10-04).
- **Plex remote access (#43) is NOT covered by this entry.** Its two manual steps (the WAN tcp/32400
forward and Plex's "manually specify public port") and the outside-in path remain as
`decisions/2026-10-03-plex-remote-access-l4.md` describes them. The operator reported it working;
I have not measured it from off-LAN.
- **`--emit-waves` drift is still open.** Re-running it still wants to onboard `vm-demo.yaml` and
`keycloak.yaml`, both listed as intentionally not onboarded in `ci/render-golden.sh`. Unfixed; see
`decisions/2026-10-03-plex-remote-access-l4.md`.
@@ -0,0 +1,145 @@
---
date: 2026-10-04
branch: feat/pihole-multi-replica
title: PiHole runs two replicas on different nodes — and its config PVC was mounted where PiHole never writes
---
## What changed
Phase 2 of making LAN DNS survive a node failure (phase 1:
`decisions/2026-10-04-pihole-declare-state.md`). PiHole was one pod on one node, which for a
whole-house resolver cost more than "until it reschedules" — measured 2026-10-04:
| Failure | Recovery |
|---|---|
| the node running the pod dies | ~40s to mark NotReady + `tolerationSeconds: 300` before eviction + reschedule + a Longhorn RWO force-detach → **roughly 6-10 minutes with no LAN DNS** |
| the node holding the `pihole-dns-*` L2 lease dies | Cilium re-elects an announcer, tens of seconds |
Those were **different** nodes (lease on k3s-prod-2, pod on k3s-prod-1), so two of three nodes were
single points of failure for LAN DNS with wildly different blast radii.
**A new schema field, because this is intent and not a primitive.** `availability.replicas`
(schema **1.10.0**, mechanism in `schemas/renderer-contract.md` `### availability`). `1` or absent
renders a Deployment exactly as before — every pre-existing golden is byte-identical, verified. `>1`
renders, together:
- a **StatefulSet** instead of a Deployment. This is forced, not preferred: a longhorn PVC is
**ReadWriteOnce**, and one RWO claim cannot attach on two nodes, so a 2-replica Deployment does not
degrade — the second pod never schedules.
- longhorn storage as **per-replica `volumeClaimTemplates`** (`config-pihole-0`, `config-pihole-1`);
the standalone PVC is no longer emitted, since it would be an orphan nothing mounts. A `bulk`
entry stays a standalone PVC — it is a shared static NFS export, not per-replica state.
- **required** `podAntiAffinity` on `kubernetes.io/hostname`. `preferred` would let both replicas
land on one node and deliver none of the intended tolerance while reporting healthy.
- `podManagementPolicy: Parallel`, so a cold start costs the max of the replicas' first-boot work
rather than the sum — `apps-wave-0` has `timeout: 5m`.
- a **PodDisruptionBudget**, `minAvailable: 1`, so a node drain cannot take the last replica.
- `observability.livenessWorkload.kind` defaulting to `StatefulSet`, so the `up` SLI reads
`kube_statefulset_status_replicas_ready`. A Deployment-shaped rule against a StatefulSet
`absent()`s forever — an alert that can never fire.
`catalog/pihole.yaml` sets `replicas: 2`, not 3: two tolerates any single node loss and leaves a
spare node for the evicted replica under the hard anti-affinity. Three would pin one per node with no
spare, so a single node failure would leave a replica permanently `Pending` and — `apps-wave-0` being
`wait: true` — stall the app tier for as long as the node was down.
### The bug found on the way, and fixed here
**PiHole's config PVC was mounted at a path PiHole never writes, so it held nothing and all of its
state was ephemeral.** With no explicit `mountPath` the renderer defaults to `/data/<name>`; PiHole
keeps everything in `/etc/pihole`. Measured on live prod 2026-10-04: `/etc/pihole` (7.1 M —
`gravity.db`, `pihole.toml`, the query DB) was on the **overlay** filesystem, while the 2 Gi Longhorn
volume sat at `/data/config` holding `lost+found` and 24 K of nothing. Consequences, all live until
now:
- every restart silently discarded PiHole's entire state and re-downloaded 72 k gravity domains;
- `backup.policy: daily-offcluster` has been faithfully backing up an **empty** volume, which is
worse than no backup because it reports success;
- it also means phase 1 was understated: that state was not merely undeclared, it was **ephemeral**.
Same class of bug `catalog/plex.yaml` documents for its own `config` entry. Fixed in this branch
rather than its own because with the wrong path the new per-replica volumes would be two 2 Gi
Longhorn volumes (×3 Longhorn replicas each) holding only `lost+found` while all state stayed
ephemeral — paying for persistence and getting none. It also removes this change's main operational
risk: with `gravity.db` persisted, a restart is cheap instead of re-downloading 72 k domains inside a
wave with a 5 m timeout.
## What I verified
- **Back-compatibility, the thing most likely to break quietly:** after the renderer change and
before `catalog/pihole.yaml` declared anything, the canonical
`render.py --all catalog -o apps --wave-layout --no-image-automation` produced **zero diff** across
the whole `apps/` tree. `render-golden` passes.
- **The new behaviour is pinned by ~20 new `render.py --selftest` assertions** (so `ci/render-golden.sh`
hard-fails on a regression, and no `conformance/**` change was needed): `replicas: 1` still renders a
Deployment + standalone PVC + no PDB; `replicas: 2` renders a StatefulSet and **no** standalone
longhorn PVC, carries the replica count, omits `strategy`, sets `Parallel` and `serviceName`, names
the claim template exactly as the mounted volume, keeps RWO/longhorn on it, does **not** duplicate
that volume in `pod.volumes`, still mounts it on the container, renders required hostname
anti-affinity, renders exactly one `minAvailable: 1` PDB, and switches the SLI to
`kube_statefulset_status_replicas_ready`. A mixed longhorn+bulk case asserts the bulk share stays a
standalone PVC and an ordinary pod volume.
- **Rendered pihole output, read back:** `replicas: 2`, `serviceName: pihole`,
`podManagementPolicy: Parallel`, no `strategy`, claim template `config` (RWO/longhorn/2Gi),
anti-affinity `kubernetes.io/hostname`, `pod.volumes: []`, mount `config -> /etc/pihole`,
PDB `minAvailable: 1`, SLI `kube_statefulset_status_replicas_ready`.
- **The `/etc/pihole` mount is safe, evidenced from the image's own init rather than assumed:**
`/usr/bin/start.sh` is PID 1 and runs as **uid 0**; its line 5 is
`chown -R pihole:pihole /etc/pihole/ /var/log/pihole/`, so a fresh root-owned volume has its
ownership fixed before anything else starts (**no `fsGroup` needed, and one would be inert**); it
calls `migrate_gravity`, whose `migrate_to_database()` creates the gravity database when
`[ ! -e "$gravityDBfile" ]`; FTL writes `pihole.toml` itself from the `FTLCONF_*` env; and the
image's own default for `files.macvendor` was moved **out** of that directory, which is what a
maintainer does to a path they expect to be a volume.
- **The PVC really is unused:** `df` showed `/etc/pihole` on `overlay` and
`/dev/longhorn/pvc-849edb86-...` on `/data/config`; `ls -A /data/config` → `lost+found` only.
- **The gate caught a real regression and it is fixed.** The first run came back **rc 1**:
`alert-rules-unit-tested` failed because `apps/wave-0/tests/app-slis.test.yaml` fed pihole a
`kube_deployment_status_replicas_available` series and expected a `deployment: pihole` label. Three
input series, the firing expectation and the file header were updated;
`platform/monitoring/tests/run.sh apps/wave-0/tests/app-slis.test.yaml` → **SUCCESS** (6 rules).
- **Schema:** `check-jsonschema` passes over all of `catalog/*.yaml`.
- **Toolbox gate:** rc **3**, with `spec-immutability`, `decisions-log`, `lint`, `l0`,
`render-golden`, `l1`, `approval-policy` all **pass**. The rc 3 is the two environmental skips —
`gitea-settings` (no local `SETTINGS_API_TOKEN`) and `conformance` L2/L3 (`CLUSTER_AVAILABLE`
unset). **Not green; reported as rc 3.**
- **No sensitive paths touched**, so unlike the previous two branches this one needs no
`/approve-override` — confirmed against `infra/gitea/approval-policy.json`.
## What I did NOT verify
- **Nothing has been reconciled.** No StatefulSet exists, no second replica has ever run, the
anti-affinity has never been evaluated by the scheduler, the PDB has never been consulted, and the
`/etc/pihole` mount has never been exercised on a real pod. Everything above is the rendered
artifact plus the image's own source.
- **THE ROLLOUT WILL BRIEFLY DROP LAN DNS, and I have not measured for how long.** `postStart` must
complete before a container is reported Running, so a pod is not Ready — and the Service has no
endpoints — until phase 1's adlist hook finishes. On this transition both replicas start with an
empty `/etc/pihole`, so the hook finds a fresh `gravity.db` with zero adlists and runs a real
`pihole -g` (72 k domains, network download) before either pod becomes Ready. **Do this at a quiet
time.** Two mitigating facts: every pihole restart has *already* paid this cost (state was
ephemeral), and after this change `gravity.db` persists so later restarts should not. If it turns
out slow, backgrounding the gravity rebuild inside the hook would decouple readiness from it, at
the cost of a window where DNS resolves but does not block — not done here.
- **Whether `pihole -g` finishes inside `apps-wave-0`'s 5 m `timeout`.** `Parallel` was chosen to
make this the max rather than the sum of two first boots, but the real duration is unmeasured (it
was stubbed during phase 1's testing). If the wave times out, the Kustomization reports failed even
though the pods may come up seconds later.
- **The old PVC's deletion.** `apps-wave-0` has `prune: true`, so removing `pihole-config` from the
rendered output should delete it. That destroys nothing (it holds `lost+found`), but I have not
observed the prune, and I did not check whether Longhorn retains the backing volume afterwards.
- **The transition overlap.** For a moment the pruned Deployment's pod and the new StatefulSet pods
may both match the Service selector. Both are configured identically from git so this should be
benign — unobserved.
- **Longhorn capacity.** Two 2 Gi claims at 3 Longhorn replicas each is ~12 Gi of real storage where
there was ~6 Gi. Not checked against free space.
- **Whether two independent query databases are acceptable to the operator.** Stats and query history
now split per replica, and the admin UI shows only the pod that answered. Adlists and password are
identical (phase 1), so blocking and auth are consistent; the *reporting* is not.
- **The residual risk is unchanged and is the larger one.** Replicas address node failure. LAN DNS
still depends on the cluster — etcd quorum, Cilium, Longhorn, a bad reconcile — and only a resolver
outside the cluster carrying the same `address=` lines removes that. Considered and not chosen
(operator decision, 2026-10-04).
- **`tolerationSeconds: 300` is untouched.** With two replicas the surviving one serves immediately, so
the 5-minute eviction delay no longer gates recovery — but it still delays the *replacement* replica,
and during that window there is no redundancy left.
@@ -0,0 +1,139 @@
---
date: 2026-10-04
branch: fix/plex-advertise-plexdirect
title: Plex vanished from the plex.tv account — every advertised connection was uncompletable; advertise the plex.direct name instead of the bare VIP
---
## What changed
Reported symptom: the server no longer appears on the operator's plex.tv account; `plex.home.keithjackson.dev`
shows "not authorized"; connecting straight to the VIP + port works.
**Root cause, measured: `customConnections` held two hand-typed URLs and NEITHER could ever complete,
so Plex had nothing publishable.** Because `customConnections` OVERRIDES Plex's own connection
publishing, the server ended up advertising only dead endpoints. Live `Preferences.xml`, 2026-10-04:
customConnections="https://plex.home.keithjackson.dev:32400/,https://192.168.2.24:32400/"
ManualPortMappingMode="1" ManualPortMappingPort=<ABSENT>
- `https://192.168.2.24:32400` — **TLS can never validate.** Plex serves 32400 with
`CN=*.130072f20c334d6c8f63d0dfef87309b.plex.direct` and **no IP SAN**, so a bare-IP https URL fails
for every client. Not theoretical: Plex's log carries a continuous storm of
`CERT: incomplete TLS handshake from <node> ... sslv3 alert certificate unknown`, every few seconds,
from **real LAN clients** arriving through the new `plex-l4-tcp` VIP.
- `https://plex.home.keithjackson.dev:32400` — **nothing listens.** The shared Gateway serves that host
on 443; measured `http=000` (connect failed) against `192.168.2.20:32400`.
Consequence chain, each link measured: no completable connection -> plex.tv could publish nothing
(`MyPlex: mapping state set to 'Mapped - Not Published'`, repeatedly) -> Plex fell back to **Plex Relay**
(`startRelay`, remote forward to 127.0.0.1:32401) -> **the server disappeared from the account**, and
clients reported "not authorized".
The fix advertises Plex's own `<dashed-ip>.<serverhash>.plex.direct` form, which is public DNS resolving
to the embedded address — so it points at the LAN VIP *and* matches the wildcard cert.
- **`catalog/plex.yaml`:** `ADVERTISE_IP: ${PLEX_ADVERTISE_URL}` added, replacing the long-standing
DEFERRAL note. The deferral had weighed only the L7 Gateway URL; the operator chose the native L4 path
on 2026-10-03, so the open question was never "Gateway or not" but "which URL has a valid cert".
- **`clusters/base/cluster-vars.yaml`:** new `PLEX_ADVERTISE_URL` knob (+ substitution-inventory comment
updated to name `plex: PLEX_ADVERTISE_URL`). The base default is an explicit **non-functional
placeholder** — dev is decommissioned and has no claimed server, and
`StrictPostBuildSubstitutions` makes an undefined var a hard failure, so the default only has to exist
and be correctly shaped.
- **`clusters/prod/kustomization.yaml`:** prod value
`https://192-168-2-24.130072f20c334d6c8f63d0dfef87309b.plex.direct:32400`.
- **`apps/wave-0/plex.yaml`:** re-rendered with the canonical command
(`python3 catalog/render.py --all catalog -o apps --wave-layout --no-image-automation`). Two added
lines, nothing else.
**Why a whole-URL cluster-var and not something built from `${PLEX_L4_VIP}`:** postBuild substitution is
plain envsubst and cannot turn `192.168.2.24` into `192-168-2-24`, and `<serverhash>` is the server's
certificate identity, derivable from nothing in this tree. The dashed IP and `${PLEX_L4_VIP}` are two
halves of one address and **nothing checks that they agree** — noted in both files.
**SENSITIVE PATHS — this PR touches `clusters/**` (two files), so `ci/approval-policy.sh` will BLOCK it.**
It needs the operator's `/approve-override <reason>` posted as a PR **review** of type "Comment".
Deliberately not posted here: CLAUDE.md §1 forbids an agent clearing this on its own PR, and the agent
account holds `owner`, so the prohibition is a rule rather than a limit.
## What I verified
All measurements against live prod, 2026-10-04, read-only. Secrets handled per CLAUDE.md §6: preference
attributes were read by name-scoped grep, never by dumping `Preferences.xml` (it holds `PlexOnlineToken`),
and the token was reported only as `<PRESENT,len=22>`.
- **THE FIX ITSELF, with full TLS verification (no `curl -k`)** — the one measurement the whole change
rests on:
- `https://192-168-2-24.130072f20c334d6c8f63d0dfef87309b.plex.direct:32400/identity` -> **`http=200`, TLS verify OK**
- `https://192.168.2.24:32400/identity` -> **`http=000`, cert validation FAILED**
- that name resolves to `192.168.2.24` (`getent hosts`), confirming the dashed-IP mechanism works from
inside this network and is not blocked by DNS-rebinding protection on the resolver path tested.
- **The server is still claimed — this was never a lost claim.** `/identity` -> `claimed="1"` with the real
`machineIdentifier`; `PlexOnlineToken` present, `PlexOnlineUsername="jakman85"`.
- **The certificate, read off the live listener:** exactly one SAN,
`DNS:*.130072f20c334d6c8f63d0dfef87309b.plex.direct`. No IP SAN. This is why the bare-IP URL fails.
- **The publish payload Plex actually sent to plex.tv**, which is what proves the connection list was the
problem rather than a guess: `PUT https://servers.plex.tv/devices/<id>?Connection[][uri]=https://plex.home.keithjackson.dev:32400&Connection[][uri]=https://192.168.2.24:32400&Connection[][uri]=http://136.51.115.252:32400&Connection[][uri]=http://10.0.2.136:32400&httpsEnabled=1...`
— all four unreachable from a LAN client or from plex.tv.
- **`Mapped - Not Published`** at every reachability check across the whole log, and an active **Plex Relay**
session — the documented fallback when nothing is directly publishable.
- **The `certificate unknown` TLS failures come from real client traffic, not a probe.** The source
`10.0.1.78` resolves via `cilium-dbg bpf ipcache get` to **identity 1 = `reserved:host`**, i.e. LAN
clients SNAT'd through `plex-l4-tcp` (`externalTrafficPolicy: Cluster`) on prod-3.
- **The Gateway is NOT broken, and my first reading of it was wrong.** A 403 `Access denied` from
`server: envoy` on the Gateway path turned out to be an artifact of probing from inside the plex pod:
**all 16** Gateway hostnames return 403 from there, because Cilium's Gateway preserves the original
source identity and enforces the destination's ingress policy. Plex's own log shows a concurrent,
**working, signed-in** browser session through the Gateway returning 200s. The HTTPRoute is
`Accepted=True`/`ResolvedRefs=True` with no filters, and it is the only route claiming that hostname.
- **Cilium is not denying the Gateway->Plex hop:** `cilium-dbg bpf policy get 3796` shows
`Allow Ingress reserved:ingress 32400/TCP`, PROXY PORT `NONE`, with 141k packets counted. No L7/HTTP
rules and no CCNPs exist anywhere in the cluster.
- **In-cluster consumers were never affected:** Seerr's recently-added scans and watchlist syncs complete
cleanly with no auth errors; there are **zero** HTTP 401s in Plex's log (the five ` 401 ` hits are
transcoder segment numbers).
- **`ADVERTISE_IP`'s mechanism, in the running image rather than from docs:**
`/etc/cont-init.d/40-plex-first-run` line 127 does `setPref "customConnections" "${ADVERTISE_IP}"`,
outside the claim guard, and `/.firstRunComplete` (lines 9/139) is on the container overlay, not the
`/config` PVC — so it re-applies on every pod start. Editing the env rolls the Deployment, which applies it.
- **Toolbox gate** (`./infra/devcontainer/dev.sh run bash -c './ci/gate.sh'`): **rc 3**, with
`spec-immutability`, `decisions-log`, `lint`, `l0`, `render-golden`, `l1` and `approval-policy` all
**pass**. The rc 3 is the two known environmental skips — `gitea-settings` (no local
`SETTINGS_API_TOKEN`) and `conformance` L2/L3 (`CLUSTER_AVAILABLE` unset). **Not green. Reported as rc 3.**
- **`render-golden` passing is the specific proof** that the catalog edit and the committed golden agree;
the rendered diff is exactly two lines and no other service's manifest moved.
## What I did NOT verify
- **THE OUTCOME. Nothing here has been observed to put the server back on the plex.tv account.** The
change is unreconciled: `ADVERTISE_IP` is absent from the live Deployment, the live
`customConnections` still holds the two broken URLs, and Plex has not been restarted. What is proven is
that the *new URL answers 200 with a valid certificate* and that *every currently advertised URL cannot
complete* — a necessary-and-plausibly-sufficient argument, not a demonstrated fix.
- **Whether plex.tv will publish and list the server once this lands.** plex.tv's decision is made
off-network and cannot be measured from here. A LAN-only connection may still leave the account showing
the server as remotely unreachable even when local clients work.
- **REMOTE (off-LAN) ACCESS IS NOT FIXED BY THIS, and may still be fully broken.** The advertised URL
resolves to an RFC1918 address, so it serves LAN clients only. The off-repo WAN tcp/32400 port-forward
(`runbooks/plex-remote-access.md`) is still **unverified** — `http://136.51.115.252:32400` was
unreachable from inside the LAN, but 2026-10-03 established there is no NAT hairpin here, so that is
**inconclusive**, not proof of absence. This repo has no off-LAN vantage point.
- **`ManualPortMappingMode="1"` with `ManualPortMappingPort` ABSENT is left as-is.** Manual public-port
mapping is enabled with no port set — a half-configured state I did not change and whose exact effect on
publishing I did not isolate. There is **no GitOps path** to it (2026-10-03: the image supports no
`PLEX_PREFERENCE*` of any kind), so it is an operator UI step.
- **Whether the operator intended the hand-typed URLs** to override the 2026-10-03 native-L4 design, or
typed them while debugging. I did not alter live preferences; the env var will overwrite
`customConnections` on the next pod start, which is a deliberate transfer of ownership from the web form
to git and will **silently discard** anything typed there since.
- **The `plex.direct` hash's stability.** Treated as server identity and read once from the live cert. I
did not establish what reissues it, so this URL could go stale with no alert; nothing in CI or the
conformance suite checks that the dashed IP still matches `${PLEX_L4_VIP}` or that the hash is current.
- **Resolver behaviour for the whole LAN.** `plex.direct` resolved correctly from a *pod* (cluster DNS
path). LAN clients resolve via PiHole, and dnsmasq's `stop-dns-rebind` would reject a public answer
carrying a private address. I did **not** test resolution from a LAN client, and this is the most likely
way the fix still fails.
- **The CI approval-policy outcome.** The local stage reported green, but that is an offline N/A, not a
verdict: this PR touches `clusters/**`, so CI will block pending the operator's override.
- **Why PMS restarted.** The process came up at 05:26 UTC while the pod is 2d2h old with 0 restarts, so
something restarted Plex inside the container. Unexplained and not investigated.
@@ -0,0 +1,126 @@
---
date: 2026-10-04
branch: fix/plex-unblock-app-tier
title: Unblock the app tier — my Certificate stalled apps-wave-0, and the advertised https URL had no servable certificate
---
## What changed
**I broke the app tier with PR #48 and this reverts the part that did it.** Two faults, both mine,
both measured after the merge:
1. **Kyverno blocks cert-manager in app namespaces.** The temporary private-key Secrets
(`plex-vip-<random>`) were denied by `secret-provenance/secrets-must-be-flux-managed`:
resource Secret/plex/plex-vip-rp4qj was blocked due to the following policies
secret-provenance:
secrets-must-be-flux-managed: Secrets in application namespaces must be delivered by
Flux from SOPS-encrypted git ... or be exempt controller-generated Secrets.
The policy matches every Secret in a namespace labelled
`homelab.keithjackson.dev/app-namespace: true` and excludes only Secrets labelled
`homelab.keithjackson.dev/secret-managed-by: controller` or carrying a Flux label. **The `plex`
namespace has that label; the `gateway` namespace — where the working wildcard cert lives — does
NOT.** That asymmetry is why the existing Certificate was never affected and mine was, and I did
not check it. cert-manager's temp key Secrets carry neither exempting label, and `secretTemplate`
cannot label them (the keymanager controller creates them, not the Certificate template). Result:
**no CertificateRequest, Order or Challenge was ever created.**
2. **Flux health-checks the Certificate — guarding the pod was not enough.** `optional: true` did
exactly what it was designed to do: Plex rolled and ran fine without the Secret (verified). But
`apps-wave-0` is `wait: true`, so Flux waits on every applied object with a known health type:
health check failed after 5m0.045564329s: timeout waiting for:
[Certificate/plex/plex-vip status: 'InProgress']
apps-wave-0 never went Ready, and apps-wave-1/-2 plus everything downstream of platform-config
sat in `DependencyNotReady` behind it. I reasoned about the pod and missed the object.
A third, independent problem the same PR introduced: **the advertised URL was `https://` with no
servable certificate.** Plex answers 32400 with its `*.<serverhash>.plex.direct` cert, which cannot
cover `plex-vip.${BASE_DOMAIN}` — the precise failure mode of the outage earlier that day.
- **`apps/wave-0/plex-cert.yaml` DELETED**, and `plex-cert.yaml` removed from
`apps/wave-0/kustomization.yaml` `resources`, so Flux prunes the stuck Certificate and the health
gate clears. **Deleted rather than merely unregistered** — my first attempt kept the file as
"tracked but not onboarded" (the shape `keycloak.yaml` and `vm-demo.yaml` use) and **the repo's own
gate rejected it**: `tls-lifecycle-automated` (R-TLS-02) fails any Certificate in the tree that no
Flux path reconciles — *"nothing reconciles it, so a deleted Certificate/issuer/controller would
stay deleted until a human re-applied it."* That pattern is legal for a Deployment and not for a
TLS object, which is a distinction I had not known.
- **`catalog/render.py`:** the now-dangling `plex-cert` EXTRA_UNITS entry removed.
- **The re-enable recipe is recorded at the call site** — in `catalog/plex.yaml` beside the scheme
it is coupled to — rather than in the deleted file: the Kyverno exemption, the non-gating
Kustomization, and the `https` flip, as one change.
- **`catalog/plex.yaml`:** `ADVERTISE_IP` → **`http://`**`plex-vip.${BASE_DOMAIN}:32400`, explicitly
temporary, with the restore condition written at the call site.
**Everything else from PR #48 is kept and working** — the hostname design, the PiHole split-horizon
answer, the `LanNetworksBandwidth` hook, the `optional` schema field, and the TLS env (inert without
the Secret, so re-enabling is additive).
## What I verified
Live prod, 2026-10-04, read-only, after the #48/#50 merges.
- **The stall and its exact cause**: the health-check timeout message above, and the full dependency
cascade (`cilium` → "dependency 'flux-system/flux-system' revision is not up to date", everything
else `DependencyNotReady`). The root `cilium` wait was a normal revision-gated cascade; the
*Certificate* was the real blocker.
- **The Kyverno denial text, verbatim**, from the cert-manager controller log, repeating every ~30s
across at least 15 distinct Secret names.
- **The policy's own structure**, read from `platform/kyverno/admission/secret-provenance.yaml`:
match = Secrets in `app-namespace: true` namespaces; exclude = `secret-managed-by: controller` OR
a `kustomize.toolkit.fluxcd.io/name` label; validate = unconditional `deny`.
- **The namespace-label asymmetry**: `plex` carries
`homelab.keithjackson.dev/app-namespace: "true"`; `gateway` does not.
- **cert-manager's controller ServiceAccount is `cert-manager`** in namespace `cert-manager` — the
identity a future exemption should name.
- **`optional: true` worked**: the new pod (`plex-c4f87c84d-zgjq5`) is `1/1 Running` with no Secret
present, and `/config/certs` was never created.
- **The postStart hook RAN and took effect** — the thing the whole hook was written for:
`LanNetworksBandwidth="10.0.0.0/8,192.168.0.0/16"` is now set in the live `Preferences.xml`, and
`customConnections="https://plex-vip.home.keithjackson.dev:32400"` was applied from the env. The
certificate prefs are correctly **ABSENT**, i.e. the hook's "no bundle → leave them alone" guard
behaved as designed.
- **PiHole's split-horizon answer is correct**, asked of `pihole-0` directly:
`plex-vip.home.keithjackson.dev -> 192.168.2.24`, alongside `plex -> .20` and `crafty-mc -> .22`,
and the live `/etc/pihole/dnsmasq.conf` carries
`address=/plex-vip.home.keithjackson.dev/192.168.2.24`. **This corrects my own earlier check**,
which read `.20` and which I nearly reported as a failure — that test resolved via CLUSTER DNS
(CoreDNS) from inside a pod and never consulted PiHole at all.
- **The gate caught my first attempt and I fixed it rather than working around it.** Keeping the
file unregistered produced `MERGE GATE: BLOCKED` (rc 1) with
`CHECK FAIL (tls-lifecycle-automated): 1 of 612 assertions failed`. After deleting the file and
the dangling EXTRA_UNITS entry: **rc 3**, with `spec-immutability`, `decisions-log`, `lint`, `l0`,
`render-golden`, `l1` and `approval-policy` all **pass** — the rc 3 being only the two known
environmental skips (`gitea-settings`, `conformance` L2/L3). **Not green. Reported as rc 3.**
## What I did NOT verify
- **Whether this actually unblocks the tier.** Unreconciled at time of writing. The reasoning is
that pruning the Certificate removes the only failing health check, but I have not seen
apps-wave-0 go Ready.
- **Whether `http://` restores client connectivity.** PiHole resolves the name and Plex serves 32400
(both measured), but I have not watched a Plex client complete a connection over the advertised
URL, and I did not re-check whether plex.tv publishes it.
- **THE REMOTE BADGE — the symptom that started this.** `LanNetworksBandwidth` is set, but the log
still tags traffic `Allowed Network (WAN)`: **82 WAN, 0 LAN**, with entries continuing after the
pref was written. So either Plex needs a restart for it to take effect, or that log tag is not
driven by this pref at all. **I do not know which, and the user-visible badge is the only real
test** — it is in the Plex client, which I cannot see.
- **The Hubble flow export is NOT active.** The cilium agents are still the pre-merge pods, so the
`filePath: stdout` question is still open and no flow has been exported. The Cilium rollout — and
its LAN-DNS risk, since prod-3 holds the Gateway, PiHole-DNS and Plex VIPs — is still AHEAD.
- **Whether a cert-manager exemption is the right shape**, or whether it widens
`secret-provenance` more than the operator wants. It is `platform/kyverno/**`, a sensitive path,
and deliberately not attempted here.
- **Whether the pruned Certificate leaves residue** — I did not check for orphaned
`plex-vip-<random>` Secrets or CertificateRequests after the prune. Note Kyverno DENIED every one
of those Secrets, so there may be nothing to clean, but that is an inference, not a check.
- **Whether `tls-lifecycle-automated` would also have objected to the Certificate living in a
`wait: false` Kustomization** (the recommended re-enable shape). It demands a reconciling Flux
path, which that provides, but I did not test it.
- **The unencrypted advertised URL.** `http://` is tolerable only while remote access does not work
(no WAN forward). Nothing enforces that assumption, and nothing will complain if `http` is still
there the day the port-forward appears.
@@ -0,0 +1,151 @@
---
date: 2026-10-04
branch: feat/plex-vip-hostname-and-lan-networks
title: Plex — one advertised hostname for local and remote, its own LE certificate, and a LAN definition so LAN clients stop being reported as remote
---
## What changed
Two operator-reported symptoms, after the 2026-10-04 "server missing from the account" fix
(decisions/2026-10-04-plex-advertise-plexdirect.md) had restored publishing:
1. **LAN clients were shown as Remote.** Root cause, measured: `LanNetworksBandwidth` was **ABSENT**,
so Plex had no definition of a local network and classified *everything* as WAN — **468 requests
logged `Allowed Network (WAN)` and ZERO `(LAN)`**, including Seerr dialling from inside the
cluster. `allowedNetworks` (the `ALLOWED_NETWORKS` env) only waives **auth**; it does not make a
client local. Two different settings, and only one of them has an env hook.
2. **The advertised URL was a single-purpose, fragile value.** The previous fix advertised
`https://<dashed-ip>.<serverhash>.plex.direct:32400`, which works, but hard-codes the VIP *and*
the server's certificate hash into a cluster-var — two values nothing could keep in sync.
**Operator design adopted (2026-10-04): ONE hostname, `plex-vip.${BASE_DOMAIN}`, serving both
audiences by split-horizon DNS** — PiHole answers it with `${PLEX_L4_VIP}` on the LAN, Cloudflare
answers it publicly with the WAN address, NATed to the same VIP.
- **`catalog/plex.yaml`:** `ADVERTISE_IP` → `https://plex-vip.${BASE_DOMAIN}:32400`. New
`lifecycle.postStart` hook (level-triggered, same idiom as pihole's and qbittorrent's) that
re-asserts on **every** start: `LanNetworksBandwidth`, and the three `customCertificate*` prefs
after converting the PEM to the PKCS#12 bundle Plex requires. New `PLEX_TLS_CRT`/`PLEX_TLS_KEY`
env from the `plex-vip-tls` Secret, both `optional: true`.
- **`apps/wave-0/plex-cert.yaml` (new, hand-written):** a cert-manager `Certificate` for exactly
`plex-vip.${BASE_DOMAIN}` from ClusterIssuer `letsencrypt-prod`. Non-catalog because the schema has
no field for a Certificate. A single name, not the wildcard: the wildcard's Secret lives in
`gateway` and Secrets are not readable across namespaces, and re-requesting `*.${BASE_DOMAIN}`
would burn a duplicate-certificate slot for no benefit.
- **`schemas/servicedefinition.schema.json` → 1.11.0:** adds `optional` to
`env.valueFrom.secretKeyRef` / `configMapKeyRef`. **This is load-bearing, not tidiness.** The
Certificate must be issued into the `plex` namespace, and that namespace is created by the
rendered `apps/wave-0/plex.yaml` itself — so it cannot be issued in an earlier tier and lands in
the *same* reconcile as the workload. With hard refs, Plex would sit in
`CreateContainerConfigError` until a certificate issued, and `apps-wave-0` is `wait: true` with
`apps-wave-1` dependsOn it, so a slow or failed DNS01 challenge would have **stalled the whole app
tier** — the hazard `catalog/plex.yaml` already documents for its GPU resource.
- **`catalog/pihole.yaml`:** `address=/plex-vip.${BASE_DOMAIN}/${PLEX_L4_VIP}` added to
`FTLCONF_misc_dnsmasq_lines`. Required, not cosmetic: measured 2026-10-04,
`plex-vip.${BASE_DOMAIN}` resolved to **`192.168.2.20`** (the Gateway VIP) via the zone wildcard,
and a connect to `:32400` there returned **`http=000`**.
- **`clusters/base/cluster-vars.yaml` + `clusters/prod/kustomization.yaml`:** `PLEX_ADVERTISE_URL`
**deleted** — the hostname makes it unnecessary, which removes the cert-hash fragility outright.
`PLEX_L4_VIP`'s note now records its second consumer (pihole).
- **`catalog/render.py`:** `plex-cert` EXTRA_UNITS entry; **`apps/wave-0/kustomization.yaml`:**
`plex-cert.yaml` hand-added (NOT via `--emit-waves`, which would also onboard `keycloak` and
`vm-demo` — the pre-existing drift recorded on 2026-10-03).
**A correction to my own earlier reasoning, recorded because it was wrong in the handoff log.** The
previous entry asserted a bare-IP URL "can NEVER validate" and treated a SAN match as a
*requirement*. The operator pointed out it is not: `httpsRequired=0` and `secureConnections` default
to Preferred, so clients can fall back to cleartext. The measurements still stand (a validating
client did fail, and real clients did send `certificate unknown`) — but the correct framing is that a
matching certificate keeps the remote leg **encrypted**, not that it is required for Plex to
function. That is why this branch obtains a real certificate for the advertised name rather than
choosing the name to suit Plex's built-in one.
**SENSITIVE PATHS — touches `clusters/**` (two files), so `ci/approval-policy.sh` will BLOCK until an
approving review (or the operator's `/approve-override <reason>` posted as a PR *review* of type
"Comment"). Deliberately not self-posted: CLAUDE.md §1.**
## What I verified
Live prod, 2026-10-04, read-only. Secrets per CLAUDE.md §6: prefs were read by name-scoped grep,
the server token was used inside the pod and never printed, and no `Preferences.xml` was dumped.
- **The LAN-classification root cause, directly:** `LanNetworksBandwidth=<ABSENT>`, and request
tagging of **468 × `Allowed Network (WAN)` vs 0 × `(LAN)`** — including `10.0.2.33` (Seerr), an
in-cluster pod. This is the measurement the whole hook rests on.
- **All four prefs the hook sets EXIST on this build**, read from the server's own `/:/prefs`
(token-authenticated, output filtered to ids): `LanNetworksBandwidth`, `customCertificatePath`,
`customCertificateKey`, `customCertificateDomain`, all `type="text"`. I had earlier been unable to
confirm this (an unauthenticated `GET /:/prefs` returns **401**) and said so rather than assuming.
- **There is NO env path for these settings** — the reason the hook exists. Grep of the image's
entire init surface: `setPref` is called for exactly six prefs (`MachineIdentifier`,
`ProcessedMachineIdentifier`, `PlexOnlineToken`, `customConnections`, `allowedNetworks`,
`TranscoderTempDirectory`) and the only `PLEX_*` env it reads are CLAIM/CLAIM_FILE/UID/GID/
UPDATE_CHANNEL and five INFO/HOME vars. No `PLEX_PREFERENCE*` of any kind; zero files mention
`LanNetworks`.
- **The DNS gap was real:** `plex-vip.${BASE_DOMAIN}` resolved to `192.168.2.20` (Gateway VIP), and
`https://192.168.2.20:32400` returned `http=000` (nothing listening). PiHole's wildcard is why.
- **`openssl` is present in the image** (`/usr/bin/openssl`, 3.0.13) — the hook's PEM→PKCS#12
conversion has a tool to run.
- **The issuer exists and works:** ClusterIssuer `letsencrypt-prod` `READY=True` (28d), and the
existing `gateway/wildcard-home` Certificate is `Ready`/not-expired, which is what makes a DNS01
issuance for a new name in this zone a reasonable expectation.
- **The renderer's substitution guard caught a real defect in my own work**, which is recorded
because it is the second time this class of bug has appeared here: my hook's explanatory comment
contained brace-wrapped names, and `assert_substitution_safe` refused to emit
(`'PX' is not a declared cluster-vars key — envsubst will replace it with the EMPTY STRING`).
Reworded; the rendered hook now contains exactly one brace-wrapped name, `BASE_DOMAIN`, verified
by parsing the emitted manifest.
- **A `set -u` bug I introduced and then removed.** With `optional: true` the TLS env vars are
genuinely UNSET when no certificate has issued; under `set -u` the first `[ -n ... ]` would abort
the hook, and a postStart hook exiting non-zero makes kubelet KILL the container — the exact
failure `optional` exists to prevent. Verified by parsing the rendered manifest that no `set -u`
**command** remains (only two mentions in comments).
- **Toolbox gate** (`./infra/devcontainer/dev.sh run bash -c './ci/gate.sh'`): **rc 3**, with
`spec-immutability`, `decisions-log`, `lint`, `l0`, `render-golden`, `l1` and `approval-policy` all
**pass**; the rc 3 is the two known environmental skips (`gitea-settings` — no local
`SETTINGS_API_TOKEN`; `conformance` L2/L3 — `CLUSTER_AVAILABLE` unset). **Not green. Reported as
rc 3.** `l0` passing is the specific proof the schema edit admits `optional` and still validates
every catalog file; `render-golden` passing is the proof catalog and committed goldens agree.
- **Only plex and pihole goldens moved.** No other service's manifest changed, and no service was
silently onboarded.
## What I did NOT verify
- **THE OUTCOME, ENTIRELY. Nothing in this branch has been observed working.** It is unreconciled:
no Certificate exists in prod, `plex-vip` still resolves to the Gateway VIP, `LanNetworksBandwidth`
is still absent, and the hook has NEVER RUN. Every claim above is about the inputs, not the result.
- **Whether the certificate will actually ISSUE.** DNS01 for a new name in this zone is inferred from
the wildcard's success, not demonstrated. If the Cloudflare credential or solver is scoped in a way
that fails for this name, Plex will start (by design) with no TLS and the advertised `https://` URL
will be unservable — i.e. **this branch could leave the advertised URL broken in a new way**. First
reconcile must be watched.
- **Whether `openssl pkcs12 -export` produces a bundle PLEX ACCEPTS.** OpenSSL 3 defaults to AES-256
+ SHA-256, which some consumers reject. Untested against Plex. If it is rejected, Plex may fail to
load its TLS listener — the hook guards against a *missing* file, NOT against a present-but-
unreadable one. **This is the single largest unverified risk in the change.**
- **Whether the certificate prefs take effect without a restart.** Plex may need to re-initialise its
listener after `customCertificatePath` changes. If so, the first reconcile applies the prefs and
the SECOND start serves the cert. Converges either way, but the first start may look wrong.
- **Whether `LanNetworksBandwidth` actually flips the Remote badge.** It is the correct setting by
Plex's own documentation and the measured absence explains the symptom exactly, but I did not set it
live and observe a client reclassify.
- **SNAT makes the LAN definition coarser than it looks.** With `externalTrafficPolicy: Cluster`, Plex
sees the ingress NODE's address for everything arriving via the VIP, so once `10.0.0.0/8` and
`192.168.0.0/16` are LAN, GENUINE REMOTE clients arriving that way will ALSO be classified local
and remote bandwidth limits will not bind on them. This is the metering consequence already
accepted on 2026-10-03, now made stronger rather than weaker. Not measured.
- **The public Cloudflare record for `plex-vip` is off-repo and absent from this branch**, as is the
WAN tcp/32400 port-forward. Remote access cannot work until the operator creates both; nothing here
can verify either, and this repo has no off-LAN vantage point.
- **The private key is exposed in the container's environment** (`/proc/1/environ`) because the schema
and renderer support no secret VOLUME — measured: `storage` accepts only
[class, export, mountPath, name, readOnly, size, subPath] with `additionalProperties: false`, and
no rendered app mounts a Secret. A volume would be the better shape; adding secret-volume support
is the clean follow-up and I did not do it.
- **The PKCS#12 passphrase is a hardcoded literal** (`plexvip`) in the rendered manifest. It protects
nothing — Plex needs it in cleartext in `customCertificateKey` and it sits beside the bundle on the
same PVC — but it is worth knowing it is not a secret and was never treated as one.
- **Four places must agree and nothing enforces it:** `ADVERTISE_IP`, the hook's
`customCertificateDomain`, `plex-cert.yaml`'s `dnsNames`, and PiHole's answer. No gate stage or
conformance test checks that they match, or that PiHole's `plex-vip` answer still equals
`${PLEX_L4_VIP}`.
@@ -0,0 +1,147 @@
---
date: 2026-10-05
branch: docs/agents-work-in-their-own-workspace
title: One workspace per agent run — the shared checkout is now documented as off-limits
---
## What changed
Agents have been doing their work in the operator's checkout at
`/var/home/keith/source/home-network-k3s-impl` and clobbering each other. Nothing in the tree
told them not to: worktrees appeared in CLAUDE.md only as §3's *gate workarounds*, i.e. as an
awkward edge case, and `decisions/README.md` asserted worktree isolation as a fact about how
agents already behave rather than as a rule they must follow. Nowhere was the rule stated.
Documentation only — no code, no manifests, no pipeline logic.
- **`CLAUDE.md`: new `## 0. Work in your OWN workspace. Never in the shared checkout.`**
Placed before §1 so the section numbers every other file and handoff entry cites (§1, §2b,
§3, §7) all keep their meaning. It gives the three commands (`git fetch origin main`;
`git worktree add -b <type>/<slug> <path outside the repo> origin/main`; `cd`), an explicit
do-not list for the shared checkout (no `checkout`/`switch`, no edits, no
`add`/`commit`/`stash`/`restore`, no removing others' worktrees), a measurement table, the
"put it outside the repo root" rule, cleanup, what to do if you are already standing in the
shared checkout with edits, and what a PM must put in a brief it writes for another agent.
- **`CLAUDE.md` intro** now says "Start with §0", with the reason: it is the rule you can
break before you have read anything else.
- **`CLAUDE.md` §3** retitled "Running the gate from a worktree" and reframed as the normal
path rather than an edge case, since §0 now makes every gate run a worktree run. Its list
grew from two breakages to three: `spec-immutability`'s skip is *avoidable*, not merely
tolerated, if the `ENGINE` shim also mounts the sibling spec repo read-only and passes
`-e SPEC_REPO=/home-network-k3s`.
- **`CLAUDE.md` §4** gained "One branch, one workspace, one PR".
- **`README.md`**: a fourth non-negotiable rule ("No work in a shared checkout"), and
"Working on this repo" now opens with how to get out of the checkout before describing the
dev container that runs in it.
- **`decisions/README.md`**: the worktree-isolation sentence now cites §0 as the requirement
instead of describing it as something agents happen to do.
I did this work the way the new §0 requires — a worktree at
`<session scratchpad>/wt-workspace-rule`, outside the repo root, branched from `origin/main`,
with the shared checkout left on the branch and with the untracked files I found in it.
## What I verified
Every number in the new §0 table was measured in the shared checkout on 2026-10-05, not
recalled:
| Claim | Command | Value |
|---|---|---|
| shared HEAD is yanked between branches | `git reflog \| grep -c 'checkout: moving'` | **107** |
| it is not sitting on `main` | `git worktree list` | `feat/pm-agent-issue-to-pr` |
| other runs' uncommitted work is in it | `git status --porcelain` | **2** trees: `infra/agent/` (22:04), `platform/pm-agent/` (22:09) — `stat -c %y` |
| its `main` is stale | `git rev-parse main` vs `origin/main` | `4386d14` vs `22c94ef`, **2 behind** |
| worktrees registered / already merged | `git worktree list --porcelain` + `git merge-base --is-ancestor <b> main` | **42** branches, **31** merged |
| nested worktrees are a gate hazard | `grep -rl '\.claude' conformance/tests platform/monitoring/tests` | **9** scripts carry an explicit exclusion |
| the 18× double-count | read `platform/monitoring/tests/run.sh:115-123` | in-tree comment, observed 2026-09-12 |
**The failure mode was observed live, mid-session, not just reconstructed.** The two untracked
trees I measured at 22:04 and 22:09 were committed at 22:20 by another run — `5334abe`
`feat(pm-agent): an in-cluster AI Program Manager...`, 1,000+ lines across `infra/agent/`,
`clusters/`, `catalog/`, `apps/`, `docs/plans/` and its own `decisions/` entry — onto the shared
checkout's checked-out branch. Measured after the fact: the shared checkout's HEAD moved
`22c94ef` → `5334abe` and its working tree went clean between my first `git status` and my last,
with `git log -1` naming a commit that is not mine. That is §0's "shared HEAD" row happening
during the session that wrote §0, and it is now cited in the doc.
**A claim of mine was wrong and is corrected in the doc.** I had it recorded that
`git worktree remove` is blocked by the agent sandbox. Provoked rather than assumed: created
a throwaway detached worktree in the scratchpad and removed it — **rc 0**, and
`git worktree list` no longer shows it. §0 therefore tells agents to remove their own, and
scopes the "blocked" note to what it actually covers: *other* sessions'
`.claude/worktrees/agent-*`, some of which are additionally `locked` on git's own terms. The
`rework/<pr-number>` escape hatch is now scoped to someone else's stale worktree holding a
branch, which is a real and separate problem (31 of them). Both of my own worktrees in this
session were removed cleanly at rc 0 after pushing.
`spec-immutability` is avoidable-not-tolerated: taken from
`decisions/2026-10-01-render-selftest-runs-in-gate.md`, which records
`stage spec-immutability: pass` under the two-mount shim plus `-e SPEC_REPO=/home-network-k3s`.
**Gate — `rc 3`, UNDETERMINED, and I am not calling it green.** Pinned toolbox, from this
worktree, `DEV_KUBECONFIG=/dev/null` and an `ENGINE` shim bind-mounting both the main
checkout's `.git` (at its own host path) and the sibling spec repo read-only with
`-e SPEC_REPO=/home-network-k3s`:
ENGINE=<two-mount shim> DEV_KUBECONFIG=/dev/null ./infra/devcontainer/dev.sh run bash -c './ci/gate.sh' # rc 3
| stage | result |
|---|---|
| spec-immutability | **pass** — it genuinely RAN; the second mount is what makes it run from a worktree |
| approval-policy | pass, but **N/A**: `event='none'`. It cannot see a PR locally, so this green says nothing. See below |
| decisions-log | pass — the three required headings and the frozen-archive pin |
| lint · l0 · render-golden · l1 | pass (L1: 3 offline checks, 0 failures, 0 skips, 0 unwired) |
| gitea-settings | **SKIPPED** — `SETTINGS_API_TOKEN` unset; it exists only in CI |
| conformance (L2/L3) | SKIPPED — `CLUSTER_AVAILABLE!=true`; the decision notes no cluster-needing requirement was touched |
`gitea-settings` is the *only* stage that did not run, and it cannot be made to run from a
workstation, so rc 3 is the ceiling for any local run — not a defect in this branch. The
first gate attempt returned rc 3 for a different and real reason (`HEAD is not ahead of
origin/main`: I had not committed yet, so the touched-requirement set was empty by default
rather than by verification); it was re-run after committing, and the table above is the
post-commit run. §3 now records both expected skips, because it previously named only
`spec-immutability`.
## What I did NOT verify
- **GATE: UNVERIFIED at the time of writing.** The pinned-toolbox result for this branch and
its exit code are reported in the PR, not predicted here. **A local rc 3 is not green** and
will not be described as one.
- **CI gate: RED, measured — `MERGE GATE: BLOCKED`, one failing stage.** Run 245 on PR #56,
head `b988da8b`, 1m47s. The only failure is `approval-policy`: *"a sensitive change lacks a
non-author approval"*, `sensitive paths touched: CLAUDE.md`, author `gitea-admin`. Every other
stage passed — `decisions-log`, `lint`, `l0`, `render-golden`, `l1`, and `gitea-settings`
(which can only run in CI, and reported `required_approvals = 0`,
`dismiss_stale_approvals = true`). `spec-immutability` SKIPPED in CI (no sibling spec repo in
the CI workspace — the inverse of the local run, where the two-mount shim made it pass) and
`conformance` SKIPPED. **Note `gate / conformance (pull_request)` reports status `success`
with description "Has been skipped"** — CLAUDE.md §2b's trap, live on this very PR. Nothing
in this branch is broken; the red is the structural human gate, below. *Measured at
`b988da8b`; this entry was then amended to record it, so the head SHA in the PR is newer than
the run quoted here and CI re-ran on the amended commit.*
- **This PR is a sensitive-path PR and is CI-RED on `approval-policy` until a human acts.**
`CLAUDE.md` is in `infra/gitea/approval-policy.json`'s `sensitive_paths` ("the delivery
contract agents follow"), so the stage requires an approving review from someone who is not
the author, or an `/approve-override <reason>` posted by an administrator **as a PR review
of type "Comment"**, not in the plain comment box. `ci/approval-policy.sh` run locally
reports N/A (it cannot see a PR), so the local gate cannot catch this and a green local run
says nothing about it. **I have not posted an override and must not** — CLAUDE.md §1 forbids
an agent clearing this on its own PR even though `gitea-admin` holds `owner` and could.
- **Nothing here is enforced.** §0 is prose. There is no gate stage that detects work done in
the shared checkout, no check that a worktree is outside the repo root, and no check that a
branch was cut from `origin/main`. Every other rule in CLAUDE.md that agents kept breaking
(`DECISIONS-LOG.md` appends, the three handoff headings) ended up as a gate stage, and that
is the honest follow-up here. I did not write one: the ask was documentation, and an
enforcement stage lands in `ci/**`, which is itself a sensitive path and deserves its own PR.
- **I did not clean up the 31 stale merged worktrees or the 35 nested under
`.claude/worktrees/`.** They are other sessions' workspaces; removing them is an operator
action, and §0 explicitly tells agents not to remove worktrees they did not create.
- **I did not touch the untracked `infra/agent/` and `platform/pm-agent/` trees** sitting in the
shared checkout. They are another run's in-flight work. Whose, and whether they are wanted,
is unknown to me.
- **`docs/plans/ssd-etcd-execution-runbook.md:18` still points at a `.claude/worktrees/` path**
inside the repo. Left as-is deliberately: that runbook is marked COMPLETED/historical and
describes the now-decommissioned dev cluster, so the path is a record of what was done, not
an instruction. It does mean a grep for in-repo worktree paths is not yet clean.
- **No runtime, cluster or Flux behaviour was touched or checked.** This branch changes three
Markdown files; `kubectl` was not run.
@@ -0,0 +1,88 @@
---
date: 2026-10-05
branch: feat/cilium-roll-out-on-config-change
title: Cilium config changes were silently inert — roll the agents when cilium-config changes, which also finally activates the Hubble exporter
---
## What changed
**A merged Cilium config change did nothing, and everything reported success.** The Hubble flow
exporter (PR #50, merged 2026-10-04) wrote its settings into `cilium-config` and never took effect.
| Measured 2026-10-05, over a day after the merge | |
|---|---|
| HelmRelease `cilium` | `Ready=True`, `UpgradeSucceeded`, *"Helm upgrade succeeded for release kube-system/cilium.v6"* |
| `cilium-config` keys | `hubble-export-file-path: stdout`, `hubble-export-allowlist: {"destination_port":["32400"]} {"source_port":["32400"]}` — **all present** |
| cilium agent pods | **all three still the PRE-MERGE pods**, `startTime 2026-10-04T07:11Z` |
| exported flow lines in agent stdout | **0, 0, 0** |
| Flux Kustomizations | all `Ready=True` |
Cause: the chart's `rollOutCiliumPods` defaults to **`false`** (cilium 1.20.1 `values.yaml`: *"Roll
out cilium agent pods automatically when configmap is updated"*), so Helm rewrites the ConfigMap and
leaves the DaemonSet's pod template untouched — and **cilium-agent reads that ConfigMap only at
startup**. The feature was merged, believed delivered, green everywhere, and doing nothing at all.
That is the same class of failure this repo already guards against elsewhere: a green signal sitting
over something that never ran.
- **`platform/cilium/helmrelease.yaml`** (authoritative): `rollOutCiliumPods: true`.
- **`platform/cilium/values.yaml`** (reference mirror) and
**`infra/ansible/roles/cilium/templates/cilium-values.yaml.j2`** (the `[parity]` source of truth):
the same, so a bootstrap render does not differ from what Flux reconciles.
**The cost is real and is the point.** Every future Cilium config change now triggers a cluster-wide
agent rollout instead of waiting for someone to remember a manual restart. That is strictly more
honest — the change applies when merged, or it fails visibly — but it makes config edits disruptive
by default, so they want a quiet moment. Mitigation already in place:
`updateStrategy.rollingUpdate.maxUnavailable: 1` means the DaemonSet will not proceed past an unready
agent, so a bad render costs one node rather than the cluster.
**Merging this is itself one rollout**, because adding the ConfigMap checksum annotation changes the
pod template — and that rollout is what finally activates the Hubble exporter.
## What I verified
- **Every row of the table above**, read from the live HelmRelease status, the live `cilium-config`
ConfigMap, the agent pods' `startTime`, and a grep for `"flow"` in each agent's stdout.
- **The chart value name, default and semantics**, quoted from cilium **v1.20.1**'s own
`values.yaml` — the version actually running here (`quay.io/cilium/cilium:v1.20.1`), not a guess
from another release: `rollOutCiliumPods: false` with the comment *"Roll out cilium agent pods
automatically when configmap is updated."*
- **All three value files carry the key** and both YAML files still parse, with
`spec.values.rollOutCiliumPods` resolving to `true`.
- **The blast-radius mitigation is genuinely present**, not assumed:
`updateStrategy.rollingUpdate.maxUnavailable: 1` is already set in the HelmRelease, with a long
existing comment explaining that a CNI rollout has no healthy-peer fallback.
- **THE MECHANISM IS CONFIRMED BY CONTRAST, not just reasoned.** The cgroup fix (PR #42,
2026-10-03) DID take effect: both the DaemonSet and the running pod mount
`cilium-cgroup hostPath=/sys/fs/cgroup`, matching what the HelmRelease declares. The difference is
exactly the one claimed above — #42 changed the POD TEMPLATE (a volume hostPath), which rolls the
DaemonSet on its own, while #50 changed ONLY the ConfigMap, which does not. It also explains the
agents' `startTime 2026-10-04T07:11Z`: that was #42's rollout, and nothing has rolled them since.
So the inertness is specific to ConfigMap-only changes, which is precisely what this flag fixes.
- **Flux is healthy before this change** — every Kustomization `Ready=True`, so this lands on a clean
graph rather than into an existing cascade.
- **Toolbox gate**: recorded in the PR.
## What I did NOT verify
- **THE OUTCOME, ENTIRELY. Unreconciled.** No agent has rolled, no flow has been exported. This
change is an argument that the rollout will happen, not evidence that it did.
- **Whether `filePath: stdout` actually works** — still the open question from #50, and it cannot be
answered until the agents restart. If the literal is not special-cased, the agent may create a
FILE named `stdout` and nothing reaches Loki: a silent no-op, not a crash. Fallback documented in
#50: keep the chart's default path and add a `loki.source.file` target to Alloy with a hostPath
mount. **Check for flow lines in the agent logs immediately after the rollout.**
- **THE ROLLOUT'S IMPACT ON LAN DNS IS UNMEASURED AND IS THE MAIN RISK.** The node holding the L2
lease for the Gateway VIP, **PiHole's DNS VIP** and Plex's VIP loses them briefly as it cycles.
`maxUnavailable: 1` bounds it to one node at a time, and BPF maps persist across an agent restart,
but I have not measured how long a VIP is unreachable during a lease move, nor whether the two
PiHole replicas cover the gap. Merge it at a quiet moment.
- **Whether enabling this is the operator's preferred trade.** The alternative — leaving it `false`
and restarting by hand — keeps config edits non-disruptive at the cost of them being silently
inert. I judged silent inertness the worse failure, but it is a judgement, not a measurement.
- **Whether anything ELSE in `cilium-config` is currently inert.** I checked the one other recent
Cilium change and it is fine (see below), but I did not audit every key against the running
agents' actual state.
- **`hubble.relay.rollOutPods` / `hubble.ui.rollOutPods`** are left at their `false` defaults. Both
have the same silently-inert property for their own ConfigMaps; not addressed here.
@@ -0,0 +1,90 @@
---
date: 2026-10-05
branch: docs/oauth2-sidecar-scrape-verified
title: The gate-sidecar scrape is verified working on prod — and four places in the tree still said it wasn't
---
## What changed
Documentation only. No manifest, no rendered output, no behaviour.
PR #49 merged as `21c88b0` and the fix works, but four places in the tree still asserted the
*pre-fix* state as current — in the present tense, in capitals, in the files a reader would consult
first. This is the stale-documentation failure mode this repo has been burned by twice already
(`git push origin main` in the runbooks, "append to DECISIONS-LOG.md" in the old handoffs), so:
- **`platform/oauth2-proxy/podmonitor.yaml`** — the banner read *"READ THIS BEFORE BELIEVING THE
TARGETS ARE UP: THE SCRAPE IS CURRENTLY DENIED BY NETWORKPOLICY"* and *"SO THE TARGETS BELOW WILL
READ `up == 0` UNTIL AN INGRESS ALLOWANCE LANDS"*. Both now false, and the first one actively
instructs the reader to disbelieve a correct `up == 1`. Replaced with a `STATUS: THE SCRAPE WORKS`
block carrying the post-fix numbers; the diagnosis is kept below it under an explicit `HISTORY`
heading, because it is why the fix is shaped the way it is. Added the drop fingerprint to
recognise if it regresses — `lastScrapeDuration` pinned at *exactly* the `scrapeTimeout` with
`context deadline exceeded`, versus 1–6 ms when healthy.
- **`catalog/render.py:159`** — *"THIS IS THE PREREQUISITE ONLY, AND IT IS NOT YET SCRAPED … Do not
read this flag as 'metrics are working'."* Rewritten to enumerate the three pieces a working
scrape needs and which PR landed each. The warning is **kept, deliberately**: the flag alone
really is insufficient, and "1 without 3" is exactly what caused the 63.7h outage. Only the
"not yet scraped" claim was false.
- **`catalog/render.py:1365`** — the sidecar arg comment, same correction, one line.
- **`platform/oauth2-proxy/README.md`** — its two observability subsections are *dated*
("measured 2026-09-30", "Update 2026-10-01"), so they are honest records rather than lies. But a
reader hits the stale body long before any correction, so a `> SUPERSEDED` pointer now sits
directly under the heading, and an `### Update 2026-10-05` section at the end carries the
before/after table, the TSDB series counts and the alert outcome.
Two substantive errors fixed while there, not just tense:
1. The README's *"To close the gap for an app, three things are needed"* listed **a Service port
and a ServiceMonitor**. Wrong — a PodMonitor targets pod ports directly, which is the whole
reason no Service exposes 44180 and the renderer needed no Service change. Following that
paragraph would have sent someone to edit `catalog/render.py`'s Service rendering for no reason.
2. `podmonitor.yaml` ended by deferring the fix to *"the catalog/renderer, which is in flight on
another branch"* — that branch does not exist and never did; the work happened in PR #49. It now
names `r_monitoring_ingress_policy` directly, and a new `CRAFTY` section explains why crafty is
the one namespace this file cannot help.
## What I verified
- **The fix itself, on prod 2026-10-05, read-only** (this is the evidence the docs now quote):
Flux applied `21c88b0` through the real path — `apps-wave-0` `lastAppliedRevision` at 21:37:01Z,
`apps-wave-1` at 21:37:46Z, in dependency order — and all five `<app>-allow-monitoring-scrape`
CNPs exist, each `ports=['44180']`, `from=[['monitoring']]`.
- **All 6 targets `up == 1`**, `health=up`, `lastError=''`, `lastScrapeDuration` 0.001–0.006s —
against 10.0s and `context deadline exceeded` before.
- **`oauth2_proxy_*` is in the TSDB for these namespaces for the first time:** 5 metric names,
148 series; `sum by (namespace) (oauth2_proxy_requests_total)` = qbittorrent 35072, radarr 23560,
sonarr 1284. (Queried with `count by (__name__)` plus a matcher, not label-values.)
- **Alerts:** all 5 `TargetDown` and 5 of 6 `OAuth2ProxyGateUnobserved` resolved; one series
remains, `OAuth2ProxyGateUnobserved{namespace="crafty"}`, firing.
- **The rendered output is byte-identical.** `catalog/render.py` changed only in comments, so this
branch touches no `apps/` file and no golden. Confirmed by `render-golden` and `l1` both passing
with no regeneration, and by `git status` showing nothing under `apps/`.
- **This branch touches no sensitive path**, unlike PR #49: `platform/oauth2-proxy/**`,
`catalog/**` and `decisions/**` are none of them in `infra/gitea/approval-policy.json`. So it
should merge on a green gate with no human approval — the opposite of the PR it documents, and
the reason the two were kept apart.
- `render.py --selftest`: PASS.
- Toolbox gate: see the handoff's own rule — reported below rather than claimed here.
## What I did NOT verify
- **I did not re-measure the 63.7h figure or the ~22 emails/day rate**; both are carried forward
from the 2026-10-04 measurements, now quoted inside the docs as historical. The 15-day
`query_range` that established "one episode, not flapping" was run once, on 2026-10-04.
- **`oauth2_proxy_requests_total` is still absent for jackett and pihole.** I assert in the README
that this is because the counter is not created until the gate serves its first request. That is
the documented behaviour of a Prometheus counter with no initialisation, and it is consistent
with the other three namespaces having traffic — but I did not force a request through jackett's
gate and watch the series appear. If it is still absent after real use, that is a finding.
- **The auth-churn rule is still unwritten.** The README now says it is "writable rather than
decorative"; that is a claim about the metrics being present, not a rule anyone has authored or
unit-tested. The thing the 2026-09-30 incident actually needed does not exist yet.
- **crafty remains unobserved.** I read its container spec on 2026-10-05 and confirmed no
`--metrics-address`; I did not attempt the fix, and nothing here changes its alert.
- **I did not audit the whole tree for other stale "metrics are not scraped" claims** beyond the
four sites a targeted grep found (`not yet reachable`, `UNTIL AN INGRESS`, `up == 0`,
`not reachable by Prometheus` and neighbours). `runbooks/oauth2-proxy-auth-failures.md` is
described in the README as "the by-hand substitute meanwhile" and I left it alone — the by-hand
log procedure still works and is not wrong, but whether it should now be rewritten against the
new metrics is unexamined.
@@ -0,0 +1,105 @@
---
date: 2026-10-05
branch: fix/plex-resolver-independent-advertise
title: Plex down LAN-wide — the advertised name existed only in PiHole, so clients that bypass it landed on the router's %D cert
---
## What changed
**I took Plex down for the whole LAN.** Reported symptom: every internal client showed a certificate
error with `%D` as the subject name and could not connect.
**Root cause: the advertised connection depended on our own resolver.** `ADVERTISE_IP` was
`http://plex-vip.${BASE_DOMAIN}:32400` — a name that exists ONLY in PiHole's split-horizon answers
and in no public zone. A Plex client resolves the advertised host *itself*, with whatever resolver it
happens to use, and on a real LAN that is frequently not PiHole: browsers ship DoH on by default,
phones have "private DNS", guest/IoT devices take the router's DNS. Those clients could not resolve
the name, the SOHO router answered the failed lookup with **itself**, and they all landed on the
router's web UI.
| Measured 2026-10-05 | Result |
|---|---|
| `192.168.2.1:443` (router, LAN side) | `C = ZZ, ST = Somewhere, O = %D342e7e6b, CN = %D` |
| `136.51.115.252:443` (router, WAN side) | the same `%D` cert |
| PiHole **pihole-0** | `plex -> 192.168.2.20`, `plex-vip -> 192.168.2.24` ✅ |
| PiHole **pihole-1** | identical ✅ (both behind the `.23` VIP) |
| Gateway `.20:443` cert | `CN = *.home.keithjackson.dev`, valid to 2026-12-12 ✅ |
| `http://192.168.2.24:32400/identity` | `200` ✅ |
| Plex's published connections | all port **32400** — nothing on 443 |
**The DNS was right; the dependency on it was the bug.** PiHole answered correctly from both
replicas the entire time. And because nothing Plex advertises listens on 443, the clients had plainly
left the Plex path altogether and were talking to the router.
**The fix: go back to `<dashed-ip>.<serverhash>.plex.direct`, which is RESOLVER-INDEPENDENT.** This
is Plex's own mechanism and the reason it exists — `plex.direct` is a public zone that returns the
private address embedded in the label, so *every* resolver (PiHole, the router, 1.1.1.1, a DoH
browser) answers `192-168-2-24.<hash>.plex.direct` with `192.168.2.24`. It needs no split-horizon
entry, no Cloudflare record and no certificate work, because the wildcard cert Plex already serves on
32400 covers exactly that name.
- **`catalog/plex.yaml`:** `ADVERTISE_IP` →
`https://192-168-2-24.130072f20c334d6c8f63d0dfef87309b.plex.direct:32400`, with the
resolver-independence requirement written at the top of the block as the first thing to check
before anyone changes this field again.
- **PiHole's `plex-vip` answer is KEPT.** It is harmless, costs nothing, and is useful for reaching
the VIP by name from a LAN shell. It is simply not what Plex advertises.
**Why not keep the nicer hostname.** It cannot be made correct for clients that bypass PiHole: a
public record for it resolves to the WAN address, and with no NAT hairpin on this router a LAN client
sent there fails too. The name is right only for PiHole users and wrong for everyone else, and there
is no configuration of it that is right for both. `plex.direct` is right for both.
**The honest cost, restated rather than buried:** the value embeds both the VIP and the server's
certificate hash as a literal — envsubst cannot dash an IP and nothing in the tree can derive the
hash, so nothing checks that they still agree. That fragility is exactly why the hostname was tried.
It is accepted because an unresolvable name is a *worse* failure: silent, LAN-wide, and it points
users at their router.
## What I verified
Live prod, 2026-10-05, read-only.
- **Every row of the table above**, including the router's `%D` cert on both its LAN and WAN sides —
which is what identifies the router as what the clients were reaching.
- **THE FIX ITSELF, with full TLS validation (no `curl -k`)**: the plex.direct name resolves to
`192.168.2.24` and `/identity` returns **200, TLS verified**. Re-checked today, not carried over
from yesterday's measurement.
- **Both PiHole replicas are identical and correct**, with the same five `address=` lines live in
`/etc/pihole/dnsmasq.conf`, and both IPs present behind the `pihole-dns-tcp`/`-udp` endpoints. I
checked only pihole-0 at first and deliberately went back for pihole-1, because a split-brain pair
would have produced exactly this intermittent-looking symptom.
- **The cluster was never the problem:** all eight LoadBalancer VIPs still assigned, L2
announcements intact (prod-3 holds `.20`/`.23`/`.24`), `wildcard-home` Certificate `Ready=True`,
and PR #51 had reconciled (`customConnections="http://plex-vip.home.keithjackson.dev:32400"` was
live, confirming the bad value was in effect).
- **`LanNetworksBandwidth="10.0.0.0/8,192.168.0.0/16"` is still set**, so the postStart hook survived
the roll and keeps re-asserting.
- **The Cilium rollout from #50 STILL has not happened** — agents are unchanged since
2026-10-04T07:11, so the Hubble export is inactive and `filePath: stdout` remains unproven.
## What I did NOT verify
- **THE OUTCOME. Unreconciled.** No client has been observed connecting after this change. The
argument is that the advertised name now resolves for every resolver and serves a matching
certificate — both measured — but I have not seen a Plex client complete a connection, and I
cannot see the user's clients at all.
- **THE CLIENT-SIDE RESOLVER PATH IS INFERRED, NOT OBSERVED.** I could not query a public resolver
from here — my attempt returned NXDOMAIN even for a `plex.direct` name that certainly resolves, so
the probe was broken (egress policy or a missing tool) and I discarded it rather than report it.
The chain "client bypasses PiHole → NXDOMAIN → router answers with itself → `%D`" is the only
explanation consistent with all the measurements, but the NXDOMAIN-hijack step in particular is
deduced from the router serving `%D` on its LAN address, not from watching a lookup.
- **Which clients bypass PiHole, or how many.** If in fact every client uses PiHole, then my
explanation is wrong and something else sent them to the router — in which case the next thing to
check is whether the clients were using `plex.home.keithjackson.dev` (port 443, the Gateway) rather
than an advertised connection at all.
- **Whether plex.tv will re-publish promptly** after the value changes, and whether stale connection
lists are cached on clients. A client holding the old list may keep failing until it refreshes.
- **Mixed content.** The previous `http://` value would also have been blocked by the browser for
anyone using `https://app.plex.tv`; that is fixed incidentally by returning to `https`, but I did
not test it.
- **The Remote badge — the symptom that began this whole sequence — remains unconfirmed.**
`LanNetworksBandwidth` is set, but Plex still tags traffic `Allowed Network (WAN)`. Unchanged and
still unexplained.
- **`ManualPortMappingMode="1"` with an absent port** is still there, untouched.
@@ -0,0 +1,259 @@
---
date: 2026-10-05
branch: feat/pm-agent-issue-to-pr
title: An in-cluster AI Program Manager that turns Gitea issues into pull requests — authored, nothing deployed
---
## What changed
A new service, `pm-agent`, that runs in the cluster, reads the issues of this Gitea
repository, decides what to do about each thread **as the Program Manager persona this
repository already works under**, and runs one worker agent per assignment that authors a
change, runs the merge gate and opens a pull request. It reacts to issue creation and to
comments; the assignment and all correspondence travel through the issue thread and the PR.
It authenticates with an Anthropic **subscription** token. It never pushes to `main` and
never merges.
Design, alternatives and threat model: `docs/plans/pm-agent-issue-to-pr.md`. Operating
surface: `platform/pm-agent/README.md`. Operator procedures:
`runbooks/pm-agent.md`.
**New — the agent itself** (`infra/agent/`): one image (`agent-runner`) layered on the pinned
dev toolbox plus node and the Claude Code CLI, with two fixed entrypoints and no argument
surface. `pm-dispatch` is the PM; `pm-worker` is one assignment. `pm-persona.md` is the PM
persona, assembled from `CLAUDE.md`, the frozen log's PM guardrails and the spec repo's
`agents/roles.md`. `worker-job-template.yaml` is the only Job shape the dispatcher may
create, baked into the image rather than mounted, because that template *is* the shape the
admission policy protects. `versions.env` pins only what the toolbox lacks — deliberately not
a second copy of the toolchain pins. `build-image.sh` builds, verifies in-image as uid 65532
on a read-only rootfs, and **never pushes**.
**New — the deployment** (`platform/pm-agent/`): namespace (no `app-namespace` label — this
is CI plumbing like `gitea-actions`; PodSecurity `restricted` is enforced), `rbac.yaml` (the
dispatcher may `create/get/list/watch jobs` in its own namespace and nothing else; the worker
identity is bound to **nothing** and mounts no token), the dispatcher Deployment (1 replica,
`Recreate` — two dispatchers would double-trigger every thread), `configmap.yaml` (every knob,
with its reasoning), `networkpolicy.yaml` (default-deny; egress to gitea:3000,
kube-apiserver for the dispatcher only, tcp/443; **no ingress at all**), and
`pm-agent-credentials.sops.yaml` holding **placeholders**.
**New — the boundary** (`platform/kyverno/admission/pm-agent-job-shape.yaml`, `Enforce` +
`failurePolicy: Fail`): Kubernetes places no `use` check on `serviceAccountName`, so "may
create Jobs" is "may run arbitrary code as the namespace's most privileged identity". Six
rules admit only the committed shape. It is listed in `platform-config/kustomization.yaml`,
which is the only list that actually applies ClusterPolicies — adding it to
`platform/kyverno/admission/kustomization.yaml` alone is a silent no-op, which is exactly how
the conformance boundary shipped green and never reached the cluster on 2026-09-29.
**Wiring:** `clusters/base/pm-agent.yaml` (dependsOn `apps-wave-0` — what it needs is Gitea,
not Keycloak or the Gateway; `wait: false`, because the pod is *expected* to be unhealthy
while its credentials and image digest are placeholders), its line in
`clusters/base/kustomization.yaml`, a SOPS decryption patch in **both** overlays, and an
`inClusterClients` entry for the `pm-agent` namespace on `catalog/gitea.yaml` with
`apps/wave-0/gitea.yaml` re-rendered by the canonical command.
Three design choices worth naming, with the alternatives recorded in the plan: it **polls**
rather than receiving webhooks (Gitea's webhook SSRF guard, lost deliveries, and no need for
inbound reach); it keeps **no state** — the trigger is "the newest thing in this thread was
not written by me", so the thread is the state and there is no PVC and no backup obligation;
and the **model holds no tools** — its reply is one JSON object that this code validates, so
nothing in the path executes text.
## What I verified
All offline, in the pinned toolbox (`./infra/devcontainer/dev.sh run`), never on the host.
- **`kyverno test platform/kyverno/tests/pm-agent` → 28 passed, 0 failed** under the pinned
CLI (v1.19.0). The first run was **27 passed, 1 failed** and caught a real defect: the
volume rule asserted `length(emptyDir) != 0`, which denies the valid `emptyDir: {}`. Fixed
by asserting the volume's **key set** instead, which also denies every other source type
without enumerating them. The suite includes the two cases a careless policy admits — a
second container while `containers[0]` is compliant, and a volume *named* `workspace` whose
source is a `hostPath`.
- **`./ci/gate.sh` → exit 3, MERGE GATE: UNDETERMINED. Not green, and not reported as
green.** Per-stage, quoted from the run: spec-immutability **pass** (the spec repo is a
sibling of this checkout and is clean at the pinned SHA), decisions-log **pass**, lint
**pass**, l0 **pass**, render-golden **pass** (10 services reproduce), l1 **pass**,
approval-policy **pass** (N/A off a pull-request event), conformance **declared-skip** (no
cluster — Phase 0), and `gitea-settings` **SKIPPED**: `SETTINGS_API_TOKEN` is not set on
this workstation, so branch protection and runner registration are UNVERIFIED by this run.
The gate names that single stage as the reason for rc 3 ("Stages that did not run:
gitea-settings"), so nothing in the change is unexamined — but rc 3 is not a pass and this
entry does not call it one.
- **The PR's OWN CI run, read from its log rather than from the status tick** (PR #57, head
`8b5e950b`, `.gitea/workflows/gate.yml` with `GATE_STRICT_SKIPS=true` and
`REQUIRE_GITEA_SETTINGS=true`): decisions-log **pass**, lint **pass**, l0 **pass**,
render-golden **pass**, l1 **pass**, **gitea-settings pass** — including
`block_admin_merge_override = true`, which is the one stage my workstation cannot run at
all — spec-immutability **SKIPPED** (the spec repo is absent in CI, as its own step
tolerates), conformance **SKIPPED**, and **approval-policy FAIL → MERGE GATE: BLOCKED**.
The failure is *only* the sensitive-path rule: "This PR changes the pipeline or the
security posture it rests on, and has NO approving review from anyone other than its author
('gitea-admin')", over eleven paths — `clusters/{base,dev,prod}/*`,
`platform-config/kustomization.yaml`, `platform/kyverno/{admission,tests}/pm-agent*`,
`platform/pm-agent/rbac.yaml` and `platform/pm-agent/pm-agent-credentials.sops.yaml`.
**That is the gate working, not a defect in the change**, and it is the one thing an agent
must not clear for itself: the operator posts `/approve-override <reason>` as a PR *review*,
or a non-author reviews it. CI is therefore red and will stay red until a human acts.
- **The commit-status API did not reflect any of that.** While the run completed and its log
carried the verdict above, `GET /commits/{sha}/status` still reported
`gate / gate (pull_request): pending — Waiting to run`. Worth knowing before anyone builds
automation on that endpoint: on this Gitea the status tick lagged the run indefinitely, so
the log is the source of truth. A fresh instance of §2b — "a green tick is not proof
anything ran"; here the tick was not even wrong, it was absent.
- **The gate caught two real defects in this change before I did**, which is worth recording
because both were in the parts I was most confident about:
1. `flux-postbuild-substitution` → 1 UNDEFINED + 1 FATAL-PARSE. My ConfigMap's *comment*
explaining the envsubst hazard contained two dollar-brace tokens, and envsubst runs over
comment lines too — so the paragraph warning about the trap was itself the trap. Rewritten
without braces.
2. `no-plaintext-secrets` → the unencrypted `.example` template was read as REFERENCED by a
kustomization, because the kustomization's comment named it by filename. Correctly
refused: the distance between a filename in a comment and a line under `resources:` is
one careless edit. The comment now points at it in prose.
- **`infra/agent/probe-validation.sh` → 17 refusals, 0 failures.** A new, committed
negative-path probe for `pm-worker`'s input guards — the things that stand between an
injected environment variable and a clone from the wrong host or a push to the wrong ref.
Each case asserts a non-zero exit AND the specific message, so a guard that stopped firing
cannot pass by failing somewhere else. It refuses: an argument on the pinned command;
`main`, a wrong prefix, `feat/x;id`, `../../etc/passwd`, too-short slugs, and a branch equal
to the base; a redirected git host, a real-and-reachable wrong one (`github.com` — the
egress policy permits tcp/443, so this one is genuinely reachable), and the right host with
a smuggled path; a malformed owner or repository; an unknown mode; a non-numeric and a zero
issue number; and each missing credential. `build-image.sh` also runs it inside the built
image, where the interpreter is the one that will run in the cluster.
- **Writing that probe corrected an overclaim in the code.** The `PM_BRANCH != "main"` guard
is UNREACHABLE while the pattern check above it holds (`main` has no `feat|fix|docs|chore/`
prefix), so the comment claiming it as the defence against pushing to main was wrong about
which line does the work. It is kept — as an assertion that does not depend on the regex
being right — and the comment now says so.
- **Two more defects found by self-review of the unattended paths, both fixed:** the worker's
`EXIT` trap ended in a failing test, which under `set -e` can replace the script's real exit
code with that failure; and a provenance *log line* read a file through a redirect that
`set -o pipefail` would have turned into a dead worker if the file were absent.
- **A self-review of the trigger found and fixed one real defect** before any of this ran:
`last_activity()` compared RFC 3339 timestamp STRINGS to find the newest comment, which is
only correct while every offset Gitea returns is identical — and the failure mode is the
worst available one, the PM answering its own last comment in a loop. It now takes the last
element of the comments list, which is the order the endpoint returns, so there is nothing
about timezones to be right about.
- **`check-jsonschema --schemafile schemas/servicedefinition.schema.json catalog/gitea.yaml`
→ ok.**
- **The golden reproduces:** `python3 catalog/render.py --all catalog -o apps --wave-layout
--no-image-automation` leaves `apps/wave-0/gitea.yaml` byte-identical to what is committed,
and the only diff versus `main` is the new `gitea-allow-pm-agent-ingress`
CiliumNetworkPolicy.
- **Syntax:** `bash -n infra/agent/pm-worker` and `ast.parse` on `pm-dispatch.py` both clean.
`yaml.safe_load_all` parses every new manifest.
- **The spec repo has no git remote** — `git remote -v` in `../home-network-k3s` prints
nothing. That is *why* a worker's gate can never run `spec-immutability` in-cluster, and it
is measured rather than assumed. The worker's acceptance rule names that stage and
`gitea-settings` explicitly and refuses any other skip.
- **`PM_SELFTEST=1 python3 infra/agent/pm-dispatch.py` → exit 0, 26 assertions, all ok**
(run in the toolbox against the repository's own files, with `PM_WORKER_JOB_TEMPLATE` and
`PM_PERSONA_FILE` pointed at `infra/agent/`). It covers the branch vocabulary in both
directions (`feature/x`, `main`, `feat/AB`, `feat/x;rm -rf /` and `../../etc/passwd` all
refused), the five result-envelope shapes `extract_decision` has to survive plus three it
must reject, the committed Job template against its whole contract (pinned command, no
args, the powerless SA, no mounted token, the volume set, the security context, and every
env name inside the dispatcher's allowlist), and that the persona still says the four
things it must. `build-image.sh` runs the same selftest inside the image; that invocation
is the one that has not happened, because the image has not been built.
- **Claude Code facts were read from the current documentation, not from memory:**
`claude setup-token` mints a one-year subscription OAuth token consumed via
`CLAUDE_CODE_OAUTH_TOKEN`; `ANTHROPIC_API_KEY`/`ANTHROPIC_AUTH_TOKEN` rank **above** it in
credential precedence (hence the unsets and the env-name allowlist); `--bare` does **not**
read it (hence neither entrypoint uses that flag); `--permission-prompts none` requires
>= 2.1.259, which is why the image asserts a version floor. The pin `2.1.285` is the npm
registry's `stable` dist-tag, measured on 2026-10-05.
## Merged `main` in, after PR #55 and #56 landed
One conflict, in `clusters/base/kustomization.yaml`: PR #55 (vpn-ingress) and this branch
both appended a resource line to the same tail. Resolved by keeping both, main's first —
`vpn-ingress` is a platform-config-tier leaf and `pm-agent` dependsOn `apps-wave-0`, which
is later. Nothing else conflicted; `runbooks/kustomization.yaml` auto-merged with both
entries, and the handoff entries are separate files with nothing to merge, which is exactly
what `decisions/` being a directory buys.
**PR #56 added `CLAUDE.md` §0 — work in your own worktree, never the shared checkout —
while this branch was open, and it named this run's uncommitted directories as its
measured example.** Two consequences were handled rather than noted:
- This merge, and everything after it, was done in a worktree outside the repository root
(`/var/home/keith/source/wt-pm-agent`), per §0.
- **§0 would have misled a worker agent, so `infra/agent/worker-rules.md` now says so
explicitly.** A worker reads `CLAUDE.md` first, and §0's instruction is to create a
worktree outside the shared checkout. There is no shared checkout in a worker's container
— it holds a fresh clone of its own, which is what §0 is actually asking for — and a
worker that obeyed §0 literally would `git worktree add`, edit somewhere the wrapper does
not look, and have its work committed by nobody while the issue got a "changed nothing"
report. The rules file now tells it §0 is already satisfied and not to make a worktree.
**The operator's approving review goes STALE on each new head, and the gate does not care.**
I first wrote here that it would need re-approving. That was wrong, and the correction is
worth keeping because it is a fact about this repository's gate rather than about this
change:
- Measured on the live branch protection: `dismiss_stale_approvals = true`,
`ignore_stale_approvals = false` — so pushing the merge did stale `jakman85`'s review
(confirmed: `GET /pulls/57/reviews` → `APPROVED`, `stale: true`).
- But `ci/approval-policy.sh` selects reviews on `.state == "APPROVED"` and
`.user.login != author` and reads **nothing about staleness** (line 147). So a stale
approval still satisfies the sensitive-path rule.
- And `required_approvals = 0`, so Gitea's own merge button never required one either.
Measured, not inferred: CI run **#257** on the merged head printed
`approved by 'jakman85' (author 'gitea-admin') — sensitive change is human-reviewed.` →
`stage approval-policy: pass`, with `gitea-settings: pass` as well. The job's own exit was
`MERGE GATE: UNDETERMINED` (rc 3 — `spec-immutability` and `conformance` skipped, as the
workflow tolerates with `|| [ $? -eq 3 ]`), so the required check
`gate / gate (pull_request)` is **green** and PR #57 reports `mergeable: true`.
Nothing is therefore waiting on the operator except **the merge itself**, which is theirs
by CLAUDE.md §1 and never an agent's. Worth noting for whoever reads this later: the rule
"push again and you must override again" applies to the `/approve-override` **directive**,
which is staleness-checked against the head commit — not to an ordinary approving review,
which this gate accepts stale.
## What I did NOT verify
**Nothing in this change has run.** That is the headline, and everything below is a
consequence of it.
- **The image has never been built.** The nodejs module-stream install, the `npm i -g
@anthropic-ai/claude-code@2.1.285` layer, the version-floor assertion, the `COPY`
ownership assertions and `build-image.sh`'s whole in-image verification (including
`PM_SELFTEST=1 pm-dispatch`) are **unexercised**. Expect the build to need iteration.
- **It has never been pushed,** so the committed image digests are the deliberate all-zero
placeholder. Nothing has pulled this image.
- **No pod has started.** The dispatcher has never authenticated to Gitea, never polled,
never triaged an issue, never created a Job. No worker has cloned, branched, run a session,
run the gate in-cluster, pushed a branch, opened a pull request or commented on an issue.
Every claim about runtime behaviour is a design claim.
- **The admission policy has not met a live API server.** 28 offline assertions prove the
policy *refuses*; nothing proves the API server *enforces* it here. That is an L2 test and
it needs a cluster. Note also that `CLAUDE.md` §2b applies to me as much as to anyone: I
did not query whether Kyverno is healthy, whether `pm-agent-job-shape` reconciles, or
whether `platform-config` is Ready.
- **The network policies have not been exercised.** Whether `toEntities: kube-apiserver`
actually permits `kubectl` from this namespace on k3s, and whether `world:443` reaches
`api.anthropic.com` through this cluster's egress, are both unmeasured.
- **Neither credential exists.** The Gitea bot account has not been created, so its
permission has not been measured — and *that measurement is the control* that keeps the
agent from clearing its own sensitive-path review. Do it before the first real run.
- **Gitea's webhook `ALLOWED_HOST_LIST` was not queried.** It is cited as a reason webhooks
were rejected; it is not a measured fact about this Gitea.
- **The `write`-can-merge gap is real and unclosed.** No Gitea token scope separates "push a
branch and open a pull request" from "merge it". The service issues no merge call, which is
a property of the code, not of the credential.
- **The worker's credentials are inside the model session's reach.** Same container, same
uid; no isolation exists and none is claimed. Bounded by token scope and egress only.
- **This branch touches sensitive paths** — `clusters/**`, `platform/kyverno/**`,
`platform-config/kustomization.yaml`, `**/rbac.yaml`, `**/*.sops.yaml` — so it needs an
approving review from a non-author, or an administrator's `/approve-override` **posted by
the operator**. An agent must not clear this one on its own PR; that is precisely the
self-approval the stage exists to prevent.
- **No observability.** No metrics endpoint, no ServiceMonitor, no alert, and the namespace's
default-deny would drop a scrape from `monitoring` if one were added. Follow-ups are listed
in the plan, in the order they are worth doing.
@@ -0,0 +1,127 @@
---
date: 2026-10-05
branch: docs/pm-agent-registry-pull-prereq
title: pm-agent reconciled exactly as designed — and is the first workload ever to pull from the in-cluster registry, which does not work yet
---
## What changed
Documentation only. No manifest, no policy, no code.
PR #57 merged and `pm-agent` reconciled. I measured what landed, and the measurement turned
up **two prerequisites for the next operator step that nothing in this repository
declares** — and that the handoff entry for #57 could not have known, because it listed the
image pull as unverified and that is exactly where it bit.
So this entry records the post-merge measurement, and
`platform/pm-agent/README.md`, `docs/plans/pm-agent-issue-to-pr.md` and
`runbooks/pm-agent.md` now name both prerequisites where they say "build, push, pin the
digest". Before this, that step read as one action; it is three, and the two new ones are
not an agent's to perform.
**The finding is not specific to pm-agent.** `conformance-runner` has the identical
registry path (`gitea.home.keithjackson.dev/home-network/...`), the identical "operator
pushes, a digest goes in a PR" model, and has never been pulled either — so the same two
blockers sit in front of the L2/L3 conformance wiring. Measured: **no pod anywhere in the
cluster references that registry** except the pm-agent dispatcher, which is therefore the
first workload ever to try it.
## What I verified
Read-only, through the pinned toolbox, against the live prod cluster.
**The merge reconciled, completely and exactly as designed.**
- `GitRepository/flux-system` artifact revision: `main@sha1:95597bd6883637…` — the merge
commit. `platform-config`, `pm-agent` and `apps-wave-0` all report that same
`lastAppliedRevision` with `Ready=True`. Compared field to field, per CLAUDE.md §2b,
rather than assumed from the merge.
- **The security boundary is live.** `ClusterPolicy/pm-agent-job-shape`:
`validationFailureAction=Enforce`, `failurePolicy=Fail`, `Ready=True`, and all six rules
present (`worker-must-be-the-committed-shape`,
`worker-must-be-one-container-with-no-args`,
`worker-volumes-must-be-workspace-or-tmp-emptydirs`,
`worker-may-not-declare-init-or-ephemeral-containers`,
`worker-env-names-must-be-the-committed-set`, `worker-may-not-use-envfrom`). This is the
check that mattered most: a ClusterPolicy added to the wrong kustomization list ships
green and never reaches the cluster, which is what happened to the conformance boundary
on 2026-09-29.
- Namespace contents: both ServiceAccounts, `pm-agent-config` (17 keys), the
`pm-agent-credentials` Secret, the `default-deny` NetworkPolicy, and both
CiliumNetworkPolicies with `VALID=True`.
- **SOPS decryption works through the new overlay patch.** Checked by KEY NAMES and VALUE
LENGTHS only, never values (CLAUDE.md §6): keys `gitea-token`, `claude-code-oauth-token`,
lengths 76 and 52 bytes — which are the base64 lengths of the committed placeholder
strings, so the Secret holds the decrypted placeholders and not ciphertext. A
ciphertext apply succeeds silently and would have left `ENC[AES256_GCM,…]` values an
order of magnitude longer.
- **`pm-agent-worker` really is bound to nothing.** The namespace has exactly one
RoleBinding (`pm-agent` → Role `pm-agent`, subject `ServiceAccount/pm-agent`), and no
ClusterRoleBinding anywhere names either pm-agent ServiceAccount.
- `gitea-allow-pm-agent-ingress` is applied in the `gitea` namespace, matching
`io.kubernetes.pod.namespace: pm-agent`.
- The dispatcher is `ImagePullBackOff` on the all-zero placeholder digest — the designed,
visible failure.
**The two prerequisites, measured.**
1. **The nodes cannot verify the registry's TLS certificate.** containerd's error on the
pull is not about the digest:
failed to resolve reference "gitea.home.keithjackson.dev/home-network/agent-runner@sha256:000…":
tls: failed to verify certificate: x509: certificate is not valid for any names,
but wanted to match gitea.home.keithjackson.dev
"not valid for **any** names" means the certificate presented to the node carries no
matching SAN at all. From the operator's workstation the same name is healthy: it
resolves to `192.168.2.20` and serves a Let's Encrypt certificate
`CN=*.home.keithjackson.dev` with SANs `*.home.keithjackson.dev, home.keithjackson.dev`
— and `Certificate gateway/wildcard-home` is `Ready=True` for exactly those names. So
the certificate that *should* be served is fine, and what the NODE reaches is not what
the workstation reaches. **Correcting the digest will not clear this.**
2. **Anonymous pulls from this registry are refused.** Not inferred from a bare 401 — that
would have been wrong, because this Gitea answers 401 for *everything* anonymously:
`/v2/home-network/agent-runner/manifests/latest`, `/v2/home-network/conformance-runner/…`,
a randomly-named nonexistent repository, and `nosuchowner/nosuchimage` all return 401,
and `/api/v1/packages/Home-Network` returns `{"message":"token is required"}`. The
registry *does* issue a token to an anonymous client, but its `access` claim is `null` —
no pull scope. So the conclusion that holds is the simple one: **an unauthenticated
client gets nothing from this registry**, so a pull with no credential cannot succeed.
And `grep` over the tree finds **no `imagePullSecrets` anywhere** — not in
`platform/pm-agent/deployment.yaml`, not in `infra/agent/worker-job-template.yaml`, not
in `conformance/incluster/`.
## What I did NOT verify
- **Why the node sees a nameless certificate.** I measured that it does, and that the LAN
does not. I did not diagnose it: I did not read the nodes' resolver or
`/etc/rancher/k3s/registries.yaml` (node files, not reachable read-only through the API),
and I did not check whether the node resolves the name to the same `192.168.2.20` the
workstation does or to something else.
**A correction to a remark I first wrote here:** I cited
`cluster-vars`'s `GATEWAY_VIP: 192.168.1.53` as suspicious next to the nodes'
`192.168.2.x`. That was noise — the operator confirms those base `cluster-vars` values are
**dev-era leftovers for a cluster that is decommissioned**, so the 192.168.1.x addresses in
that file say nothing about prod and should not be read as evidence about anything. The
measured facts stand on their own and none of them depended on that knob.
- **Whether the package would be pullable once authenticated.** Nothing has ever been
pushed to that path, so "a credential is sufficient" is untested. The only thing
established is that no credential is insufficient.
- **Which fix the operator wants.** Two routes, and they are not equivalent:
(a) an `imagePullSecret` — a `dockerconfigjson` holding a Gitea token, SOPS-encrypted
like `pm-agent-credentials`, referenced from the Deployment *and* from the committed
worker Job template; note the Job template's shape is pinned by admission, and
`imagePullSecrets` is a field that policy does not currently constrain, so adding one is
a template change that needs a deliberate look at whether the policy should pin it too.
(b) allowing anonymous reads of that package in Gitea — no manifest change at all, but it
makes the image world-readable to anything that can reach the host.
I have implemented neither: both need an operator action I must not take, and (b) is a
posture decision. The docs now present both.
- **Everything the #57 entry listed as unverified about RUNTIME remains unverified.** The
image has still never been built or pushed. No dispatcher has authenticated to Gitea, no
issue has been triaged, no worker Job has been created — so the admission policy, though
now provably applied and Enforce, has still never refused or admitted a real Job. The
network policies have not carried traffic.
- **I did not re-run the merge gate against `main` after the merge.** This branch's own gate
run is the evidence for this change; the merged state's is CI run on PR #57.
@@ -0,0 +1,225 @@
---
date: 2026-10-05
branch: feat/vpn-remote-access-wireguard
title: Remote-access VPN — WireGuard on udp/51820, hostNetwork because a pod identity would 403 every Gateway hostname
---
## What changed
New platform component `platform/vpn-ingress/`: a **WireGuard** remote-access VPN so the operator's
Android / Linux / Windows / macOS devices can dial in from anywhere on the internet and behave like
machines on the LAN — full reach to `192.168.2.0/24` plus internet egress out the house WAN.
This is the **opposite direction** to the existing `platform/vpn-egress` (pods *out* through PIA,
ADR-0015). They share nothing but the word "VPN"; both READMEs now say so, and `README.md`'s layout
block labels the two.
**Transport: WireGuard, and the security argument is the handshake's failure mode, not "it is
encrypted".** WireGuard's first handshake message carries a MAC keyed with the responder's own
public key, so a sender that does not already know it gets **no reply at all** — no error, no reset,
no banner. From the internet, udp/51820 is indistinguishable from a closed port: nothing to
brute-force, no version string, no amplification. That is what makes an unfiltered WAN port
defensible here, and it is why there is deliberately no `loadBalancerSourceRanges`-style allowlist
(which would also break roaming clients). It also has first-party clients on all four named
platforms, which OpenVPN (needs a CA + per-device certs + a CRL) and IKEv2 do not.
**`hostNetwork: true`, and this is THE decision — forced by a measured property of this cluster.**
A pod-networked WireGuard server must SNAT client traffic to its own pod IP (Cilium drops a packet
whose source is not the endpoint's address), so every remote client would have arrived wearing *that
pod's* security identity. `decisions/2026-10-04-plex-advertise-plexdirect.md` measured what that
costs: a request to the shared Gateway VIP **from inside a pod returns `403 Access denied` from
Envoy for all 16 Gateway hostnames**, because Cilium's Gateway preserves the original source
identity and enforces the *destination's* ingress policy, and every app admits `reserved:ingress`
plus named peers — never an arbitrary pod. So the obvious build would have produced a tunnel that
came up healthy, showed connected peers, routed packets, and 403'd every cluster web UI — and
`*.home.keithjackson.dev` would not even have resolved, because `apps/wave-0/pihole-dns.yaml`'s
ingress policy deliberately omits the `cluster` entity. In the host netns there is no pod identity
to carry: forwarded traffic is SNATed to the node address and arrives as `host`/`remote-node`,
byte-for-byte what a LAN client looks like. Three further problems vanish with it: `ip_forward` is
already 1 on these nodes (so no `--allowed-unsafe-sysctls` kubelet change — it is *not* a safe
sysctl); no LoadBalancer VIP, so no L2-announcement lease lottery and no `externalTrafficPolicy`
trade-off; and no double encapsulation, which is what makes `MTU = 1420` simply correct.
`hostNetwork` is permitted by `restrict-host-namespaces`' own stated carve-out (it matches
`app-namespace=true` only, and names Cilium/node-exporter as the precedent); `namespace.yaml` is
deliberately unlabelled. **The cost is stated, not buried:** a hostNetwork pod has no Cilium
endpoint, so **no NetworkPolicy constrains this workload**. `networkpolicy.yaml` says that at
length rather than shipping an `allow world → 51820` rule that would read as the control and
enforce nothing; the real boundary is WireGuard's peer authentication.
**A DaemonSet, not a Deployment.** The WAN forward names one node address by hand, off-repo (same
shape as the plex tcp/32400 forward). A floating single replica would silently invalidate it on
every reschedule; an identical listener on all three nodes makes **failover a one-line router
change** with no cluster work and no re-issued client profiles. A pinned LoadBalancer VIP was the
considered alternative and was rejected: it reintroduces the L2 lease, SNAT and an extra node hop
into the one path whose failure mode is "I am away from home and cannot get in".
**Authorisation is split so that it stays reviewable.** Peer **public** keys live in
`platform/vpn-ingress/peers.yaml` in **plaintext** — a public key grants nothing by itself, and this
makes "who can get into my house" a PR diff with `git log` as its audit trail. The only real secret,
the server's private key, is the `wg-server-key` Secret, **created out of band by the operator**: an
agent must not mint a long-lived private key (CLAUDE.md §6), and a key that passed through a session
transcript would have to be treated as compromised. The two halves are joined only at pod start, by
an init container, into a `medium: Memory` emptyDir — so the assembled config holding the key never
touches a node's disk and dies with the pod.
**There are no peers yet, and that is the correct initial state**, for the same reason. The VPN ships
INERT-BUT-HEALTHY: a zero-peer interface listens and refuses every handshake.
Files:
- `platform/vpn-ingress/` (new): `namespace.yaml`, `peers.yaml` (the plaintext peer register),
`daemonset.yaml` (hostNetwork listener + config assembly), `networkpolicy.yaml` (namespace
baseline, with the honest caveat), `kustomization.yaml`, `README.md` (the design record).
- `clusters/base/vpn-ingress.yaml` (new): its own **non-gating post-platform** Flux Kustomization
(`dependsOn platform-config`, `wait:false`). Non-gating is load-bearing rather than conventional
here: the DaemonSet *cannot* start until the operator creates the server key, so in the gating
`platform` tier an unfinished manual step would have stalled every apps wave on merge.
- `clusters/base/kustomization.yaml`: the new tier added.
- `clusters/base/cluster-vars.yaml`: new `WG_CLIENT_CIDR` (`10.90.0.0/24`), declared next to
`LAN_CIDR` because it is the one range that must be collision-checked against every other; the
comment enumerates the five it avoids. **No prod override, deliberately** — unlike every VIP, this
range is private to the tunnel, so the same value is correct in both environments and a prod patch
would imply otherwise. Substitution inventory updated.
- `infra/ansible/roles/node_baseline/defaults/main.yml`: `wireguard` added to
`node_baseline_kernel_modules`. The pod has `NET_ADMIN` but deliberately **not** `SYS_MODULE`, so
it cannot autoload the module — it CrashLoops with a clear error rather than quietly degrading to
userspace wireguard-go (which would need `/dev/net/tun`, a device a hostPath mount cannot actually
grant, as the `/dev/dri` attempt proved).
- `infra/vpn-ingress/new-peer.sh` (new): enrols a device. Generates the keypair on the operator's
machine, writes a 0600 profile **outside** the checkout (it refuses to write into the repo),
prints a QR code for phones, and prints only the public `[Peer]` stanza. It also refuses a
duplicate address, because two devices on one address does not error anywhere — the server routes
to whichever handshook last, so both appear to work intermittently.
- `runbooks/vpn-remote-access.md` (new) + its `kustomization.yaml` generator entry + `README.md`
index line: the three manual steps, the four off-LAN verification checks, revocation, and why no
connection alert exists.
- `README.md`: `vpn-ingress` added to the layout, with the egress/ingress distinction spelled out.
**THREE MANUAL STEPS REMAIN AND THE VPN DOES NOT WORK UNTIL ALL THREE ARE DONE** (all off-repo by
necessity; `runbooks/vpn-remote-access.md`): run `node_baseline` to load the kernel module, create
the `wg-server-key` Secret, and forward WAN udp/51820 to one node address on the SOHO router.
**SENSITIVE PATHS — this PR touches `clusters/**` (three files), so `ci/approval-policy.sh` will
BLOCK it.** It needs the operator's `/approve-override <reason>` posted as a PR **review** of type
"Comment". I have deliberately not posted it: CLAUDE.md §1 forbids an agent clearing this on its own
PR, and the agent account holds `owner`, so the prohibition is a rule, not a limit.
## What I verified
Live prod, read-only, 2026-10-05, plus the offline gate.
- **Toolbox gate** (`./infra/devcontainer/dev.sh run bash -c './ci/gate.sh'`): **rc 3**, with
`spec-immutability`, `decisions-log`, `lint`, `l0`, `render-golden`, `l1` and `approval-policy` all
**pass**. The rc 3 is two environmental skips — `gitea-settings` (no local `SETTINGS_API_TOKEN`)
and `conformance` L2/L3 (`CLUSTER_AVAILABLE` unset). **Not green. Reported as rc 3, not as pass.**
Run from an isolated git worktree with both CLAUDE.md §3 workarounds applied
(`DEV_KUBECONFIG=/dev/null` plus an `ENGINE` shim bind-mounting the main checkout's `.git` and
the sibling spec repo) — which is why `spec-immutability` is **green here and skipped in CI**,
where the runner has no spec checkout. `approval-policy` passing locally is an offline N/A, not a
verdict; the real verdict is the CI run below.
- **The CI gate ran on PR #55 (run 244, head `1a67fc1b`) and `approval-policy` is the ONLY failing
stage** — read from the job log, not from the red tick. Verbatim: "This PR changes the pipeline or
the security posture it rests on, and has NO approving review from anyone other than its author
('gitea-admin')", naming exactly the three files I predicted:
`clusters/base/cluster-vars.yaml`, `clusters/base/kustomization.yaml`,
`clusters/base/vpn-ingress.yaml`. Every other stage that ran reported green —
`gitea-settings`, `decisions-log`, `lint`, `l0`, `render-golden`, `l1`. So the branch is blocked
on the operator's `/approve-override <reason>` (posted as a PR **review** of type "Comment") and
on nothing else. **I have not posted it** — CLAUDE.md §1.
- **Branch protection is live, measured by CI's own `gitea-settings` stage** (it has the token this
workstation lacks): `required_approvals = 0`, `enable_status_check = true`,
`status_check_contexts = ["gate / gate (pull_request)"]`, `block_admin_merge_override = true`,
`enable_push = false`, `dismiss_stale_approvals = true`, and **1 runner online**. That is the §2b
re-measurement of CLAUDE.md §2's table for this branch, not a restatement of it.
- **`flux-postbuild-substitution` (L0) actually exercised the new wiring, and caught a real defect
in it.** On the first run it FAILED, naming `platform/vpn-ingress/daemonset.yaml:118` and
attributing it to "Flux Kustomization 'vpn-ingress' (clusters/base/vpn-ingress.yaml, path
./platform/vpn-ingress)". Two things are proven by that message: the new tier's
`postBuild.substituteFrom` declaration is correctly detected (so `${WG_CLIENT_CIDR}` will be
substituted, not shipped literally), and the check reads comments as well as values — the hazard
was a comment that spelled out the forbidden braced form literally while claiming not to use it.
Fixed; the check now passes 444/444 with 0 hazards.
- **The `wireguard` kernel module is available on these nodes by construction**: all three run
Debian 13 (trixie) on kernel `7.1.8+deb13-amd64` (measured), and WireGuard has been in-tree since
5.6, so it is present in the distro kernel and only needs loading.
- **`net.ipv4.ip_forward = 1` is already written by `node_baseline`**
(`roles/node_baseline/tasks/main.yml`, `/etc/sysctl.d/99-k3s-cilium.conf`), and **no kubelet
carries `--allowed-unsafe-sysctls`** (grepped across `roles/k3s_server`, `roles/node_baseline` and
`group_vars`: zero hits). That pair is what makes the host netns the only option that does not
require a node-restart change.
- **Cilium's datapath, measured from `cilium-config` rather than from the values file**:
`enable-ipv4-masquerade=true`, `enable-bpf-masquerade=true`, `routing-mode=tunnel`,
`tunnel-protocol=vxlan`, `ipv4-native-routing-cidr` EMPTY, Cilium `v1.20.1`. The vxlan underlay is
where `MTU = 1420` comes from, and the empty native-routing CIDR is why pod→LAN is masqueraded
today.
- **`WG_CLIENT_CIDR` collides with nothing.** Pod CIDR `10.0.0.0/16` (`CLUSTER_POD_CIDR`), service
CIDR `10.43.0.0/16` (measured: `kubernetes` Service clusterIP is `10.43.0.1`), the PIA tunnel's
`10.72.192.0/18` (`platform/vpn-egress/README.md`), and both LANs `192.168.1.0/24` /
`192.168.2.0/24`. `10.90.0.0/24` is outside all five.
- **The egress-class label matters and is set to `internet`.** Read live:
`CiliumEgressGatewayPolicy vpn-egress-steering` selects `podSelector:
homelab.keithjackson.dev/egress-class: vpn` with **no namespace scope**, so `vpn` here would have
steered every remote client's internet traffic out PIA.
- **All three nodes are untainted** (`spec.taints: None` on each), so the DaemonSet covers the
cluster with no tolerations.
- **`new-peer.sh` was run end to end** against a throwaway server key in the scratchpad (deleted
immediately after; it never existed in the repo). It rendered a correct profile — `Address
10.90.0.7/32`, `DNS 192.168.2.23`, `Endpoint wan.home.keithjackson.dev:51820`, `MTU 1420`,
`PersistentKeepalive 25`, `AllowedIPs 0.0.0.0/0` — at mode 0600, printed the matching public-key
stanza, and both argument-validation paths (missing name, out-of-range octet) refuse correctly.
The private key was redacted from every line I displayed.
- **The endpoint name is resolver-independent, which is the specific trap this avoids.**
`wan.${BASE_DOMAIN}` is an unproxied public Cloudflare A record kept current by
`platform/externaldns/ddns.yaml` (checked every 5 min), so it resolves from a cellular connection
— unlike any name PiHole answers, which a remote client cannot resolve until it is already
connected. (This is the `plex.direct` lesson applied.)
- **Velero does cover this namespace.** `platform/velero/helmrelease.yaml`'s `daily` schedule
excludes only `monitoring` and `unifi`, so `vpn-ingress` and the `wg-server-key` Secret are
captured off-cluster to R2. Read from the manifest, not from a backup listing.
## What I did NOT verify
- **THE ACTUAL FIX. Nothing in this branch has been proven to carry a single packet.** The
DaemonSet has never been reconciled, no `wg0` has ever existed, and no handshake has ever been
attempted. Three blockers are off-repo and manual (kernel module, server key, WAN forward), and
this branch removes none of them — it only makes them the *only* remaining work.
- **Outside-in reachability, at all.** This repo has **no off-LAN vantage point**, which is exactly
the gap the plex remote-access work hit. Step 6 of the runbook (a phone on cellular) is the only
honest test and it has not been run.
- **The in-pod `iptables` → host-netfilter interaction, which is my biggest single doubt.** Debian 13
uses nf_tables; the container writes MASQUERADE/FORWARD rules into the **host's** tables via the
image's own `iptables`. If that binary is the legacy backend while the host is nft, the rules can
apply to a table the kernel does not consult — and the symptom would be the nastiest available:
handshakes succeed, `wg show` looks perfect, and every forwarded connection hangs. **Check this
first if the tunnel comes up but nothing is reachable:** `iptables-save -t nat | grep MASQUERADE`
and `nft list table ip nat` on the node, from the host, not from the pod.
- **Whether `allowPrivilegeEscalation: false` is compatible with the image's s6 init.** It is the
correct posture and I set it, but this repo has already been bitten by `no-new-privileges`
misbehaving (`platform/externaldns/ddns.yaml`'s README note). If the pod fails before
`wg-quick` runs, that flag is the first thing to try flipping.
- **Whether `NET_ADMIN` alone is sufficient.** Reasoned from what `wg-quick` does (create the link,
set a sysctl, write two netfilter rules), not measured. If `iptables` complains, `NET_RAW` is the
likely addition — deliberately not granted pre-emptively.
- **The image's custom-config path.** `lscr.io/linuxserver/wireguard:1.0.20260223-r0-ls124` (tag
confirmed to exist and to be the current one, published 2026-10-01) is expected to bring up
whatever is in `/config/wg_confs/` when `PEERS` is unset. That is its documented behaviour; it has
not been run here, and the init container's assembly of that file has never executed.
- **Whether the probe is right.** `wg show wg0` is asserted to exit non-zero when the interface is
absent. Not executed.
- **Cilium's reaction to a new `wg0` in the host netns.** `platform/cilium/values.yaml` does not pin
`devices`, so Cilium auto-detects; whether it attaches to `wg0` — and whether that matters — is
unknown. `wg` interfaces are already filtered out by `node_health_collect.py`, so something in
the estate anticipates them, but that is not evidence about Cilium.
- **Zero peers means the end-to-end authorisation path is untested**, including revocation. The
first enrolment is also the first test of `peers.yaml`'s format being what `wg-quick` accepts.
- **No peer-level observability exists.** An exporter publishing
`wireguard_latest_handshake_seconds` is the top follow-up; until then "who is connected" is an
on-demand `wg show` and nothing alerts on an unexpected session. Pod-down is covered only by
kube-prometheus-stack's generic `KubePodNotReady` / `KubeDeploymentReplicasMismatch`, which I did
not confirm fire for a DaemonSet in this namespace.
- **The security consequence I am most keen for a human to review rather than take from me:** an
enrolled device reaches the three k3s nodes themselves — apiserver 6443, kubelet 10250, SSH 22 —
because "reach the entire local network" includes them. That is stated in the README and the
runbook with the narrowing recipe, but it is a posture decision, not a verified fact, and it is
the right thing to argue about on this PR.
@@ -0,0 +1,112 @@
---
date: 2026-10-05
branch: fix/vpn-runbook-ansible-command
title: vpn-remote-access runbook — step 1 named a script that does not exist, and step 2 cited the wrong reason the key is gitignored
---
## What changed
Two defects in `runbooks/vpn-remote-access.md` (merged in #55), both authored by me, both reported
by the operator the first time they tried to follow it.
**1. Step 1 named a command that does not exist.** It said:
cd infra/ansible && ./site.sh --tags system --limit k3s_prod
There is **no `site.sh` anywhere in this repo** (`find . -name site.sh` → nothing). The invocation
was wrong in four separate ways at once, which is what makes it worth recording rather than just
patching: wrong kind of thing (this repo drives Ansible with `ansible-playbook <playbook>`, never a
wrapper script — `playbooks/site.yml` exists and is the full bring-up chain, not this); wrong
playbook (the module work lives in `playbooks/node-baseline.yml`); wrong targeting flag (`--limit`
instead of this repo's `-e k3s_hosts=...` convention, which `infra/ansible/README.md` "Targeting
prod" documents for every playbook); and no toolbox wrapper, though Ansible exists only inside the
pinned container and `ansible.cfg` is only read from `infra/ansible`.
Replaced with the real command, plus the three things about it that are load-bearing:
./infra/devcontainer/dev.sh run bash -c \
'cd /work/infra/ansible && ansible-playbook playbooks/node-baseline.yml -e k3s_hosts=k3s_prod --tags system'
- `-e k3s_hosts=k3s_prod` — the playbook defaults to `k3s_servers`, which is the **dev** group;
dev is decommissioned, so an unqualified run does nothing useful.
- `--tags system`, never untagged — the two kernel-module tasks carry that tag, and an untagged run
would also hit the `disks` tasks, which assert on block-device variables prod deliberately leaves
as placeholders (the playbook's own header warns about this). `--tags system` is broader than the
modules alone (sysctls, iscsid, qemu-guest-agent, swap masking) but each is idempotent and
already in its desired state on a live node.
**2. Step 2 gave the wrong reason the server key is safe from git — and the right reason is
fragile.** It told the operator to stage the key at `/work/.cache/server.key` "inside the repo's
gitignored cache". `.cache/` is **not** gitignored: `git check-ignore -v .cache/serverkey.txt`
matches nothing. The file was ignored only incidentally, by `.gitignore` line 11 `*.key` — so the
path happened to be safe for a reason I had not identified, and **any operator who renamed it
(`server.pem`, `wg-server`, `privatekey`) would have had a committable WireGuard private key sitting
in the checkout.** The gate would not have caught it either; `no-plaintext-secrets` does not
recognise a bare WireGuard key.
The step now states the real rule, marks the `.key` suffix as the thing doing the work, and gives
the operator a verification they can run before trusting it (`git check-ignore -v` must print a
rule, and `git status --short` must not list the file).
Nothing outside `runbooks/vpn-remote-access.md` changed; no manifest, no behaviour.
## What I verified
- **`site.sh` does not exist**: `find . -name 'site.sh' -not -path './.git/*'` → no output.
- **The real surface**: `infra/ansible/playbooks/` contains `node-baseline.yml` and `site.yml` (and
11 others); `node-baseline.yml`'s own header documents both
`-e k3s_hosts=k3s_prod` and the tag-scoping hazard. The `-e <playbook>_hosts=` convention is
confirmed by `infra/ansible/README.md` §"Targeting prod" and by the existing
`runbooks/node-memory-swap.md`, which invokes `ansible-playbook playbooks/node-health.yml -e
node_health_hosts=...`.
- **`k3s_prod` is a real inventory group**: `[k3s_prod:children]` in `inventory/hosts.ini`, with
`[k3s_prod_primary]`/`[k3s_prod_secondary]`.
- **`--tags system` covers the kernel-module tasks**: both "Persist kernel modules…" and "Load
kernel modules now" carry `tags: [system]` in `roles/node_baseline/tasks/main.yml`.
- **The gitignore claim, measured both directions**:
`git check-ignore -v .cache/server.key` → `.gitignore:11:*.key`;
`git check-ignore -v .cache/serverkey.txt` → no match. So the suffix is the only thing ignoring it.
- **Every path the component's docs reference resolves**: all six relative markdown links in
`platform/vpn-ingress/README.md` (checked from that file's own directory), and both Ansible
playbook paths.
- **Toolbox gate** from an isolated worktree: **rc 3**, with `spec-immutability`, `decisions-log`,
`lint`, `l0`, `render-golden`, `l1` and `approval-policy` all **pass**; the rc 3 is the two
environmental skips (`gitea-settings` — no local token; conformance L2/L3 — no `CLUSTER_AVAILABLE`).
**Not green. Reported as rc 3, not as pass.**
- **This branch touches NO sensitive path** (`runbooks/**` and `decisions/**` are not in
`infra/gitea/approval-policy.json`), so unlike #55 it needs no `/approve-override`.
## What I did NOT verify
- **The corrected command has not been RUN.** Ansible is an operator action, and this is the
decisive gap: I have verified the playbook, the group, the tag and the flag all exist and are
the documented convention, but not that the run succeeds end to end or that
`lsmod | grep '^wireguard'` then reports the module. It is a better-evidenced command, not a
proven one.
- **Whether `--tags system` is entirely side-effect-free on a live prod node.** Each task it runs is
idempotent by construction, but I did not dry-run it (`--check`) to confirm it reports zero
changes beyond the module load.
- **The rest of the runbook's commands past step 2** are unchanged and still unexercised — in
particular `kubectl exec ds/wireguard -- wg show`, which cannot be reached while the pods sit in
`Init` waiting on the server key.
- **Whether any OTHER document I wrote in #55 contains an invented command.** I re-checked every
file path and markdown link in the component (all resolve) and every script the docs tell an
operator to run, but "the referenced file exists" is weaker than "the command is correct" — which
is exactly the gap that produced `site.sh`.
## Post-merge state of #55, recorded here since its own entry predates the merge
Measured on live prod after #55 merged as `ad3f56e`:
- Flux applied it by the real path: Kustomization `vpn-ingress` `lastAppliedRevision:
main@sha1:ad3f56e`, equal to the GitRepository's artifact revision, `Ready=True`.
- All **18** Flux Kustomizations `Ready=True` — the new tier disturbed nothing, and `wait: false`
behaved as intended (`vpn-ingress` is Ready while its own pods are not, so nothing downstream
stalled on it).
- **`hostNetwork` is confirmed in effect, not merely configured**: the three pods report pod IPs
`192.168.2.10/.11/.12` — the node addresses, one per node.
- **It fails closed exactly as designed**, with a legible cause: all three pods `Init:0/1`,
`MountVolume.SetUp failed for volume "wg-server-key" : secret "wg-server-key" not found`, and no
Secret in the namespace. The #55 entry's "the DaemonSet has never been reconciled" is superseded
by this paragraph; its remaining unverified claims (the tunnel carrying a packet, the
iptables/nftables backend question) still stand.
@@ -0,0 +1,187 @@
---
date: 2026-10-05
branch: fix/vpn-server-key-in-sops
title: VPN server key moves into SOPS-encrypted git — the out-of-band Secret broke R-SEC-01 and the DR story
---
## What changed
**Operator correction (2026-10-05): "secrets are kept in source through sops".** They are right, and
#55 shipped the WireGuard server private key the wrong way: as a Secret the operator was told to
`kubectl create` out of band, referenced by name only. This branch moves it into the tree as
`platform/vpn-ingress/wg-server-key.sops.yaml`, where every other secret in this repo lives.
**Why the original choice was wrong, not merely unconventional.** Two concrete costs, both of which
#55's own README half-admitted and then shipped anyway:
1. **R-SEC-01 / spec docs/07 says secrets live in source, SOPS-encrypted, reaching the cluster only
through Flux.** An out-of-band Secret is outside the GitOps tree by construction.
2. **It broke DR for the one credential that cannot be re-derived.** A cluster rebuild restores
everything in git; it does not restore a hand-made Secret. Losing this key means **re-enrolling
every device**, because each client profile pins its public half. #55 papered over this with
"keep a copy in your password manager", which is a workaround for a self-inflicted gap.
Note `platform/kyverno/admission/secret-provenance.yaml` did **not** forbid the original shape —
it scopes to `app-namespace=true` namespaces and `vpn-ingress` is deliberately a platform namespace,
so admission would have accepted the hand-applied Secret. The rule it violated was the written
requirement, not an enforced control. Recording that because "the gate let it through" was never
evidence it was correct.
**How the unfillable-key problem is solved.** An agent still must not mint a long-lived private key
(CLAUDE.md §6), so the file is committed **already encrypted, with `privatekey: REPLACE-ME`**. That
makes the wiring complete and the gate green from the first commit — the resource line and both
overlay decryption patches are present — and leaves the operator exactly one act: replace the value.
The alternative, a commented-out resource line to uncomment later, is precisely the "file in git with
no generator entry: reviewed, merged, apparently done, still broken" shape this repo keeps getting
bitten by (`alert-runbooks-resolvable` exists because of it).
**The init-container guard is now a validation, not an emptiness check.** It was `[ -z "$key" ]`.
Because the committed placeholder is non-empty, the likely failure is now a value that is present
and *wrong*, so the guard pipes the value through `wg pubkey` — which accepts only a real 32-byte
curve25519 private key — and names which of four cases it hit:
| case | why it matters |
|---|---|
| `REPLACE-ME` placeholder | the expected fresh-install state |
| empty | blanked value |
| **starts with `ENC[`** | **the Secret reached the cluster UNDECRYPTED.** A missing overlay decryption patch applies cleanly and leaves every Flux condition green — this is the silent failure the guard exists for |
| rejected, none of the above | mangled value, or a *public* key pasted by mistake |
Files:
- `platform/vpn-ingress/wg-server-key.sops.yaml` (new) — SOPS-encrypted to the repo's age recipient,
`stringData.privatekey` only, placeholder value.
- `platform/vpn-ingress/wg-server-key.sops.yaml.example` (new) — plaintext template + operator
hand-off, following the `crafty-oauth2-proxy-credentials.sops.yaml.example` convention.
- `platform/vpn-ingress/kustomization.yaml` — the resource added; the "DELIBERATELY ABSENT: a
Secret" block replaced with the overlay-patch warning.
- `platform/vpn-ingress/daemonset.yaml` — the `wg pubkey` guard; volume comment rewritten.
- `clusters/dev/kustomization.yaml`, `clusters/prod/kustomization.yaml` — **the `vpn-ingress`
`decryption:` patch, in both.** This is the load-bearing half: #55's own kustomization comment
predicted that forgetting it applies ciphertext cleanly.
- `clusters/base/vpn-ingress.yaml` — its "NO decryption stanza is needed" comment was now false.
- `platform/vpn-ingress/README.md`, `runbooks/vpn-remote-access.md` — step 2 rewritten.
- `infra/vpn-ingress/new-peer.sh` — stale "step 1" pointer.
**A second finding: `wg` and `sops` were not in the same place — and the first fix for that was
also wrong.** Measured: `wg` existed only on the host (`/usr/bin/wg`), `sops` only in the dev
container, `qrencode` on neither. So `sops -d … | wg pubkey` could not run in one shell, and #55's
step 2 — which assumed it could — would have failed.
My first fix was to **split every step by where it runs**, and to tell the operator to
`dnf install qrencode` on their workstation. **Operator correction: "sop, wg, and any other tool
requirement is supposed to be baked into the devcontainer."** That is CLAUDE.md §5 and the
devcontainer README's "Don't install the toolchain on the host", and the split fix broke the
invariant rather than honouring it — it also produced a procedure that could never be reproduced in
CI, and which no one should have to follow.
**The real fix:** `wireguard-tools` and `qrencode` are now distro packages in
`infra/devcontainer/Containerfile`, alongside ansible/openssh/diffutils. Both are in Fedora 44's
repos (`wireguard-tools` 1.0.20260223 — the same upstream version as the container image this
component runs — and `qrencode` 4.1.1), unpinned like every other dnf package there, because the
pinned thing is the Fedora base and neither is a gate tool whose version changes what green means.
Three things got *simpler* rather than merely relocated, which is the tell that the operator's rule
was the right one:
1. **Step 2 is now one pipeline in one shell:** `sops set … "\"$(wg genkey)\""` generates the key
straight into the already-encrypted document. The plaintext never lands on disk, never reaches a
terminal, and there is no staged copy to shred. The previous version needed a copy in
`.cache/server.key`, a `git check-ignore` warning about the `*.key` suffix being the only thing
protecting it, and a sha256 comparison to prove the right bytes arrived. All of that is gone.
2. **`new-peer.sh` now derives the server's public key from `wg-server-key.sops.yaml` itself**
(`sops -d --extract … | wg pubkey`), so there is no local key copy to keep in step with the
encrypted one. It previously required the operator to keep the private key at a magic host path.
3. **`.cache/` is now gitignored at the repo root** (mirroring `infra/ansible/.gitignore`), so the
container has a persistent, non-committable scratch directory. `new-peer.sh` writes client
profiles to `.cache/wg-peers/` by default — necessary because the repo bind-mount is the
container's ONLY persistent read-write mount, so a profile written to `/tmp` in there is gone
before it can be moved to a desktop. Its old blanket "refuse to write inside the checkout" guard
is replaced by `git check-ignore`, which tests the actual property instead of a proxy.
**SENSITIVE PATHS — this PR touches `clusters/**` (two overlays) AND adds a `**/*.sops.yaml`, so
`ci/approval-policy.sh` will BLOCK it.** It needs the operator's `/approve-override <reason>` as a
PR **review** of type "Comment". I have deliberately not posted it (CLAUDE.md §1).
## What I verified
- **The encrypted file is real and correctly targeted.** `sops -e -i` in the pinned toolbox
produced `stringData.privatekey: ENC[AES256_GCM,...]` with cleartext keys, `encrypted_regex
^(data|stringData)$`, and exactly one age recipient:
`age175l8mdpdfu7hq0aml3exs3gykarwjmuvr23sq56s3wjejnyk44wsp4mfzg` — the recipient in the root
`.sops.yaml`, i.e. the key Flux holds as `sops-age`.
- **Round-trip, without exposing anything**: `sops -d` then a Python read of key names only →
`stringData keys: ['privatekey']`, and `value is still the placeholder: True`.
- **Both overlay patches are present and name the right Kustomization** (`name: vpn-ingress`,
`namespace: flux-system`, `decryption.secretRef.name: sops-age`), inserted after each overlay's
`velero` stanza, mirroring headlamp/crafty/velero.
- **`kubectl kustomize platform/vpn-ingress` builds** and now emits five objects — Namespace,
ConfigMap, **Secret**, DaemonSet, NetworkPolicy — with `${WG_CLIENT_CIDR}` still an unexpanded
token for Flux.
- **The tool gap, measured on both host and container before the fix**: `wg` host-only, `sops`
container-only, `qrencode` on neither.
- **Both packages exist in the image's repos**, queried from inside the running container:
`wireguard-tools` 1.0.20260223 (repo `updates`) and `qrencode` 4.1.1 (repo `fedora`).
- **The image REBUILDS with them and both tools resolve inside it** —
`./infra/devcontainer/dev.sh build` succeeded, and `wg --version` / `qrencode --version` /
`sops --version` all answer in the rebuilt container. This is the claim the change rests on, so
it was executed rather than reasoned.
- **`new-peer.sh`'s new SOPS path fails correctly against the placeholder.** Run in the rebuilt
container it refused with "could not derive the server public key … it still holds the REPLACE-ME
placeholder", which is both the expected pre-key behaviour and a live test of the
`sops -d | wg pubkey` pipeline the whole design now depends on.
- **`.cache/` is ignored regardless of filename** now: `git check-ignore -v .cache/anything.conf`
and `.cache/serverkey.txt` both match `.gitignore:46:.cache/`. Before this change only `*.key`
matched, which is the fragility the previous runbook had to warn about.
- **Toolbox gate** from an isolated worktree: **rc 3**, with `spec-immutability`, `decisions-log`,
`lint`, `l0`, `render-golden`, `l1` and `approval-policy` all **pass**; rc 3 is the two
environmental skips (`gitea-settings` — no local token; conformance L2/L3 — no cluster).
**Not green. Reported as rc 3, not as pass.**
- **The L0 gate caught THREE real defects in this branch before it could merge — including one
in the fix for another — and I had asserted one of them was fine without running it.** Both are recorded because the gate's value here is the
whole point of the exercise:
1. **`no-plaintext-secrets` FAILED**: "`wg-server-key.sops.yaml.example`: an unencrypted .example
template is referenced by a kustomization — it would be applied as a plaintext Secret". My
kustomization named the template in a *comment*, and the check matches comments too (correctly:
naming one is how a plaintext Secret gets applied by accident). `platform/crafty/kustomization.yaml`
never names its own example either — the convention was there to copy and I missed it. Fixed by
not naming the file; the hand-off lives inside the example, where it belongs.
**An earlier draft of this entry claimed this check passed. It did not. The claim was written
from expectation rather than from a run.**
2. **`flux-postbuild-substitution` FAILED** on `${key#ENC[}` in my new guard
(`daemonset.yaml:155`), flagged `[SILENT-EMPTY]`: envsubst consumes every `${...}`, so my
shell prefix-strip would have rendered to the empty string — the ciphertext branch of the guard
would never have fired, which is precisely the silent failure the guard was added to catch.
Rewritten with `case`, which uses no braces and so has nothing to escape.
3. **And then it failed a THIRD time, on the fix's own comment** — `[FATAL-PARSE]
daemonset.yaml:156 ${...}`, the prose explaining the rule, written with the literal form. That
class is worse than it looks: a `FATAL-PARSE` hazard fails the **entire** Kustomization, every
resource in the path, not just the line. Rewritten as "dollar-brace expansion". This is the
second time in this component that writing the hazard literally inside a comment about the
hazard has been the defect (the first was in #55), so the habit to build is: **in any
substituted path, describe the construct in words, never type it.**
- **After both fixes, `no-plaintext-secrets` and `flux-postbuild-substitution` pass** (446 and 198
assertions respectively), and `l0` is green.
## What I did NOT verify
- **That Flux decrypts this file on prod.** The overlay patches have never reconciled. This is the
whole risk of the change and it has exactly one observable outcome: after merge the pods should
CrashLoop reporting the **`REPLACE-ME` placeholder** (proving decryption worked), *not* reporting
**`ENC[`** (which would prove a patch is wrong). I built the guard to tell those apart because I
cannot test them.
- **That `wg pubkey` accepts the operator's real key through this path.** The guard is reasoned from
`wg pubkey`'s behaviour and has never run — `wg` is absent from both this workstation's container
and the gate, so the first execution will be in the pod.
- **The `sops set` command in the hand-off.** I verified `sops -e -i` and `sops -d` in the toolbox;
I did **not** run `sops set` with the quoting shown, and nested quoting inside
`dev.sh run bash -c` is exactly where a documented command tends to break. If it misbehaves, the
editor form (`sops <file>`) is the fallback and does not depend on quoting.
- **The sha256 comparison in step 2 step 4** is untested end to end (it needs the real key).
- **Whether anything else in #55 assumed a tool is available where it is not.** I checked `wg`,
`sops` and `qrencode` because step 2 depended on them. I did not audit every command in the
runbook the same way — and that class of defect has now produced two corrections in a row
(`site.sh`, then `sops | wg`), so assume more remain until each step has actually been run.
- **The live VPN still carries no traffic**, and the earlier gaps stand unchanged: the
iptables-vs-nftables question, `allowPrivilegeEscalation: false` versus the image's s6 init, and
any off-LAN reachability.
@@ -0,0 +1,73 @@
---
date: 2026-10-06
branch: fix/new-peer-ignores-template-comments
title: new-peer.sh refused the first VPN address because its duplicate check matched its own commented-out example
---
## What changed
The operator's first real enrolment failed:
```
$ ./infra/vpn-ingress/new-peer.sh keith-phone 2
new-peer.sh: 10.90.0.2/32 is already allocated in platform/vpn-ingress/peers.yaml. Pick another octet.
```
**Nothing was allocated.** `peers.yaml` had zero peers — the pod's own init container reported
`wg0.conf assembled: 0 peer(s)`. The duplicate-address check grepped the WHOLE file, and
`peers.yaml` line 66 is a **commented-out example stanza** I wrote, containing literally
`# AllowedIPs = 10.90.0.2/32`. So `.2` — the first address anybody would ask for, and the one my
own runbook uses in its example — was permanently un-allocatable, with a message asserting the
opposite of the truth.
Both halves fixed, because either alone leaves the trap half-set:
- **`infra/vpn-ingress/new-peer.sh`**: the check strips comment lines before matching
(`grep -vE '^[[:space:]]*#' | grep -q …`). That is the correct predicate rather than a patch: a
real stanza's `AllowedIPs` line is never commented, while both the template and every peer's
`# <name> — <owner>` label always are.
- **`platform/vpn-ingress/peers.yaml`**: the example now uses placeholders that cannot match
anything real — `# <device-name> — <owner>, enrolled <YYYY-MM-DD>` and
`AllowedIPs = 10.90.0.<octet>/32`. A future grep cannot be fooled by it either.
The bug class is worth naming: **a documentation example that is byte-identical to real data will
eventually be parsed as real data.** The same shape caused two earlier defects in this component —
`flux-postbuild-substitution` flagged a `${...}` written inside a comment *explaining* that hazard,
and `no-plaintext-secrets` flagged the `.sops.yaml.example` because the kustomization named it in a
comment. Three instances now; the rule is to make examples structurally unmatchable, not merely
commented out.
No sensitive paths (`platform/vpn-ingress/**`, `infra/vpn-ingress/**`, `decisions/**`), so this
merges on a green gate with no override.
## What I verified
Run in the pinned toolbox against the live tree, 2026-10-06.
- **`.2` now works**, and it went through the REAL key path: `new-peer.sh keith-phone 2` rendered a
profile with `Address 10.90.0.2/32`, `AllowedIPs = 10.90.0.2/32` in the printed stanza, full
tunnel, at `.cache/wg-peers/keith-phone.conf` (0600). The throwaway keypair was deleted after.
- **This incidentally closes a gap left open in #60**: the profile could only have been rendered by
deriving the server's public key via `sops -d --extract … | wg pubkey` from
`wg-server-key.sops.yaml` — so that pipeline is now proven **against the operator's real key**,
not just against a placeholder it was expected to reject.
- **A real duplicate is still refused.** Appending an uncommented
`AllowedIPs = 10.90.0.5/32` stanza and asking for octet 5 produced the correct refusal; the tree
was restored afterwards and `git diff --stat` showed only the intended template edit.
- **Zero active allocations remain**: `grep -vE '^[[:space:]]*#' peers.yaml | grep -c AllowedIPs`
→ `0`.
- **Toolbox gate**: rc 3, with `spec-immutability`, `decisions-log`, `lint`, `l0`, `render-golden`,
`l1` and `approval-policy` all pass; rc 3 is the two environmental skips (`gitea-settings`,
conformance L2/L3). **Not green. Reported as rc 3.**
## What I did NOT verify
- **No peer is enrolled by this branch.** The keypair I generated was a throwaway and was deleted;
the operator must run the script themselves, since the device's private key must exist only on
the device. So the end of the enrolment path — a stanza merged into `peers.yaml`, Flux rolling
the DaemonSet, and `wg show` listing a peer — is still unexercised.
- **The duplicate-NAME warning** (`grep -qi "^ *# *${NAME} "`) deliberately still inspects
comments, because per-peer labels are comments. It is no longer tripped by the template, but I
did not test it against a real enrolled peer.
- **Nothing about client traffic.** The WAN port-forward is still not configured and there is still
no off-LAN vantage point, so the tunnel has carried no packet.
@@ -0,0 +1,103 @@
---
date: 2026-10-06
branch: fix/peers-configmap-content-hash
title: A merged VPN peer never reached the tunnel — the peer register was a fixed-name ConfigMap, so nothing rolled the pods
---
## What changed
The operator enrolled a phone, merged the peer, and **`wg show` listed no peers.** Measured on prod
2026-10-06, with the peer already on `main`:
| observation | value |
|---|---|
| peer stanza on `main` | present (`AllowedIPs = 10.90.0.2/32`) |
| GitRepository artifact | `main@sha1:e1bebb8` — Flux had fetched it |
| `vpn-ingress` Kustomization `lastAppliedRevision` | `main@sha1:5928d81` — **behind**, 10m interval |
| live `wg-peers` ConfigMap, active `AllowedIPs` lines | **0** |
| DaemonSet volume reference | `configMap.name: wg-peers` — a **fixed** name |
| DaemonSet `generation` / `observedGeneration` | **1 / 1** — it had **never rolled** |
| init container, all three pods | `wg0.conf assembled: 0 peer(s)` |
The lag was only the reconcile interval. **The defect is the fixed name.** When Flux does update a
fixed-name ConfigMap it updates it *in place*: the DaemonSet's pod template is byte-identical, so
no rollout is triggered — and because the init container assembles `wg0.conf` **once at pod start**
into a tmpfs, the running tunnel keeps the old peer list indefinitely. Adding or revoking a peer
would have had **no effect at all** until something unrelated happened to restart the pods. For a
*revocation* that is a security defect, not an inconvenience: the operator would delete a stanza,
see a green PR, and the device would keep working.
My runbook and README both asserted "PR → merge → Flux rolls the DaemonSet (~1 min)". That was
never true.
**This repo already documents the fix, and I had read the file.** `runbooks/kustomization.yaml`:
*"The generated name carries kustomize's content hash, so editing any runbook rolls the server
automatically and a stale projection is impossible."*
So the register becomes a **content-hashed generator**:
- `platform/vpn-ingress/peers.yaml` (inline ConfigMap) → **`platform/vpn-ingress/peers.conf`**, a
plain file, plus a `configMapGenerator` in `kustomization.yaml`. The operator's enrolled peer was
carried across verbatim. Every line is WireGuard config and `#` is a legal comment there, so the
documentation now travels *inside the mounted file* instead of in a YAML wrapper that gets
stripped.
- **`namespace: vpn-ingress` added to the kustomization — REQUIRED, not tidiness.** A generated
ConfigMap inherits no namespace; every other object here declares `vpn-ingress`; and kustomize's
`nameReference` transformer will not rewrite a reference across a namespace boundary. Without it
the build emitted `ConfigMap wg-peers-m9kcckcb5t` while the DaemonSet still mounted the unhashed
`wg-peers`, which would not exist — the pods would wedge on a missing volume. I caught this only
by building the output and reading the volumes block.
- **`infra/vpn-ingress/new-peer.sh`**: `PEERS_FILE` repointed to `peers.conf`, and a missing
register is now **fatal** instead of skipped. The old guard was
`[ -r "$PEERS_FILE" ] && grep …`, so after the rename the only symptom would have been
duplicate-address detection quietly never firing again — the silent-skip shape this repo treats
as a defect in its own right.
- Stale `peers.yaml` references swept from the README, runbook, `daemonset.yaml`,
`networkpolicy.yaml`, the SOPS example, and the script's own **user-facing output** (it told the
operator to paste into "peers.yaml, under data.peers.conf", which would no longer exist).
- The runbook gained the verification that actually distinguishes this failure — the DaemonSet's
`generation` must *increase* after the merge — and a troubleshooting row for `0 peer(s)` after a
merge.
Flux's `prune: true` removes the orphaned fixed-name `wg-peers` ConfigMap on the next reconcile.
No sensitive paths (`platform/vpn-ingress/**`, `infra/vpn-ingress/**`, `runbooks/**`,
`decisions/**`), so this merges on a green gate with no override.
## What I verified
Built and run in the pinned toolbox, 2026-10-06 (kustomize v5.8.1 via `kubectl kustomize`).
- **The reference is now rewritten end to end**: generated `ConfigMap wg-peers-m9kcckcb5t` in
namespace `vpn-ingress`, and the DaemonSet mounts **`wg-peers-m9kcckcb5t`**. Before adding
`namespace:` the same build mounted the unhashed `wg-peers` — so the namespace line is load
bearing, measured both ways.
- **The hash tracks content, which is the whole mechanism.** `wg-peers-m9kcckcb5t` →
append a second peer → `wg-peers-dgg7ht9c74` → restore → `wg-peers-m9kcckcb5t`. Deterministic
and reversible, so an edit necessarily changes the pod template.
- **The operator's enrolled peer survived the file conversion byte-for-byte**: the active stanza in
`peers.conf` (`PublicKey = pBRSHrRy…`, `AllowedIPs = 10.90.0.2/32`) is identical to the one on
`main`, compared directly against `git show origin/main:platform/vpn-ingress/peers.yaml`.
- **The build still emits all five objects**: Namespace, ConfigMap, Secret, DaemonSet,
NetworkPolicy — and the `Namespace` object's own name is still `vpn-ingress` (the namespace
transformer did not rewrite it).
- **`new-peer.sh` works against the new register**: `spare-laptop 7` renders a profile and prints
"append this to platform/vpn-ingress/peers.conf"; `dupe 2` is **refused** because the operator's
real `.2` now occupies it — the first time the duplicate check has been exercised against real
data rather than against its own example.
- **Toolbox gate**: rc 3, with `spec-immutability`, `decisions-log`, `lint`, `l0`, `render-golden`,
`l1` and `approval-policy` all pass; rc 3 is the two environmental skips. **Not green. Reported
as rc 3.**
## What I did NOT verify
- **That the roll actually happens on the cluster.** The whole point of the change is unproven
until Flux applies it: the success criterion is the DaemonSet's `generation` increasing and
`wg0.conf assembled: 1 peer(s)` in the init log, followed by `wg show` listing the peer.
- **That the tunnel then carries traffic.** No handshake has ever been observed. The WAN
port-forward is reportedly configured but has never been exercised by a packet I can see, and I
have no off-LAN vantage point — runbook step 6 from cellular remains the only honest test.
- **Revocation**, which is the case where this defect was a security problem. Deleting a stanza
should now roll the pods and drop the peer; untested.
- **Whether the orphaned fixed-name `wg-peers` ConfigMap is actually pruned.** Reasoned from
`prune: true` on the Kustomization, not observed.
@@ -0,0 +1,126 @@
---
date: 2026-10-06
branch: docs/pm-agent-registry-pull-prereq
title: The nodes resolve gitea to the WAN, so the failing certificate is the router's — the second node process to need the issuer pin
---
## What changed
The image pull for `pm-agent` failed TLS verification, and the previous entry on this branch
honestly recorded it as **not diagnosed**. The operator asked for the diagnosis before any
registry design. This is it, and the fix turns out to be a pattern this repository already
has.
`infra/ansible/inventory/group_vars/k3s_prod/vars.yml` now pins
`gitea.{{ k3s_base_domain }}` → `192.168.2.20` in `node_baseline_hosts_pins`, beside the
Keycloak issuer pin that is there for the identical reason.
**It reaches the nodes the way every other node setting in this project does — through
Ansible, from the inventory.** Node configuration is Ansible's (and, for the dev VMs,
OpenTofu's); nothing here touches a node by hand. For prod specifically, Ansible is the
*only* surface: `infra/PROD-PROVISIONING.md` records that prod is 3× bare metal and that the
dev path (OpenTofu → Proxmox VM → cloud-init) does not apply, so there is no
cloud-init/tofu half to keep in parity for this. The one scoped, idempotent command:
cd infra/ansible && ansible-playbook playbooks/node-baseline.yml \
-e k3s_hosts=k3s_prod --tags hosts
`--tags hosts` runs ONLY the `/etc/hosts` task, so applying this pin cannot drift any other
baseline setting. Running the play is an operator action (it has become/root on prod), but
the configuration itself is declared, reviewed and version-controlled — not typed on a node.
The docs that described this as an undiagnosed blocker now describe the cause and the fix:
`platform/pm-agent/README.md`, `runbooks/pm-agent.md` (its symptom row now names the pin and
the play), and `docs/plans/pm-agent-issue-to-pr.md`.
Also recorded, in the two places an operator reads when creating the credential: **the agent
authenticates to Gitea with a local account and a scoped PAT, by decision** (operator,
2026-10-06), not with a federated identity. Written down because the alternative looks
obviously better until you check whether it is possible — see below.
## What I verified
Every step measured, read-only, in this order.
**The failing certificate is the router's, not the Gateway's.**
- containerd's error names TLS, not the digest: `tls: failed to verify certificate: x509:
certificate is not valid for any names, but wanted to match gitea.home.keithjackson.dev`.
"not valid for **any** names" means the presented certificate carries no SANs at all.
- `192.168.2.20` is the shared Gateway's own LoadBalancer VIP
(`gateway/cilium-gateway-shared`, from the Cilium pool `192.168.2.20-30`), and its `https`
listener serves `*.home.keithjackson.dev` with `wildcard-home-tls`. From the operator's
workstation the name resolves there and serves the real Let's Encrypt
`CN=*.home.keithjackson.dev` with correct SANs. **So the certificate and the Gateway are
healthy.**
- **The node asks a different resolver and gets a different answer.** Prod's
`node_baseline_dns_servers` is the LAN gateway, not Pi-hole — deliberately, as that file
explains. Public DNS for this zone is a CNAME to `wan.home.keithjackson.dev`: measured via
both `1.1.1.1` and `8.8.8.8`, `gitea.home.keithjackson.dev` →
`wan.home.keithjackson.dev.` → `136.51.115.252`, and the apex answers the same.
- **That address serves a certificate with no names.** Measured from the workstation against
the WAN address with the right SNI:
subject=C=ZZ, ST=Somewhere, L=Unknown, O=%D342e7e6b, CN=%D
issuer=C=ZZ, ST=Somewhere, L=Unknown, O=%D342e7e6b, CN=%D
No extensions in certificate
No extensions means no `subjectAltName`, which is exactly "not valid for any names". The
`CN=%D` is the router's placeholder.
**This repository had already measured the same thing, for Keycloak, and I did not need to
re-derive it.** `infra/ansible/inventory/group_vars/k3s_prod/vars.yml` says, above the pin:
"Since platform/gateway/gateway.yaml set an external-dns `target`, every public name is a
CNAME to wan.home.keithjackson.dev = the home WAN IP. The SOHO router does NOT hairpin: from
the LAN, WAN:443 answers with the router's own self-signed placeholder cert (measured from
k3s-prod-2/-3 2026-10-03: `curl` exit 60, ssl_verify_result=18)." Same cause, same symptom,
one name later. The pin exists precisely for node processes that must reach the Gateway
directly; containerd is one, and nobody had added it.
**The parity the pin has to satisfy:** `192.168.2.20` equals the live
`GATEWAY_VIP`, and `k3s_base_domain` equals the live `BASE_DOMAIN` — both read from the
cluster, not from the comment that claims prod serves `prod.home.keithjackson.dev` (it does
not; `flux-system/cluster-vars` reports `BASE_DOMAIN=home.keithjackson.dev` and
`GATEWAY_VIP=192.168.2.20`, and Ansible's `k3s_base_domain` is `home.keithjackson.dev`).
That comment is stale history.
**The credential decision, and why the obvious alternative is not available.** Gitea's API
accepts basic auth, PATs, SSH signatures and its own OAuth2 bearer tokens; as an OAuth2
provider Gitea implements **only the Authorization Code Grant** (plus PKCE/OIDC), so there
is no client-credentials grant, and nothing in Gitea validates a token issued by a
third-party OIDC provider. A Keycloak service-account token therefore cannot authenticate to
Gitea's API or to git-over-HTTP. Read from Gitea's own documentation
(`docs.gitea.com/development/api-usage`, `/development/oauth2-provider`), not assumed.
**Gate:** `./ci/gate.sh` in the pinned toolbox from a §0 worktree — see the branch's run; rc 3
with `gitea-settings` the only stage that did not run.
## What I did NOT verify
- **That the pin fixes the pull.** It is IaC, and nothing has applied it: `/etc/hosts` on the
nodes is written by the `node_baseline` play's `hosts`-tagged task, which is an operator
action. I did confirm the mechanism is not inert — `roles/node_baseline/tasks/main.yml`
renders `node_baseline_hosts_pins` into a marked `blockinfile` with `backup: true`, and
`state: absent` when the list empties, so a removed entry really leaves the node. Until that runs
and an image exists, "the node now reaches the Gateway" is a design claim. The evidence
that it *will* is the Keycloak pin working for the same cause — which I also did not
re-measure.
- **Why public DNS answers at all for an `internal` service.** `catalog/gitea.yaml` sets no
`exposure`, so it inherits `internal`, and the renderer contract says an internal service's
HTTPRoute carries `external-dns.alpha.kubernetes.io/controller: none` and publishes no
public record. Yet `gitea.home.keithjackson.dev` resolves publicly to the WAN CNAME. I did
not chase that: it may be a zone-level wildcard rather than a published record, and it did
not change the diagnosis. It is worth someone's attention, because "internal services
publish no public DNS" is an L0-checked claim and this looks like a case where the *name*
resolves regardless of what the renderer withheld.
- **Registry authentication.** Unchanged and still open: an unauthenticated client gets
nothing from this registry, and no `imagePullSecret` exists anywhere in the tree. With the
credential model now decided (local Gitea accounts with PATs) the shape is a
`dockerconfigjson` for an account whose token carries `read:package`, referenced from the
Deployment and the committed worker Job template — and the worker Job template's shape is
pinned by admission, so whether the policy should also pin `imagePullSecrets` deserves a
deliberate look rather than a quiet addition. Not built: minting that token is an operator
action, and I did not want to guess at a second credential's scope.
- **Anything about runtime.** The image still does not exist. No dispatcher has
authenticated, no issue has been triaged, no worker Job has been created, and the admission
policy — live, `Enforce`, six rules — has still never admitted or refused a real Job.
@@ -0,0 +1,113 @@
---
date: 2026-10-06
branch: fix/vpn-ingress-ip-forward
title: The VPN tunnel never came up — a hostNetwork pod cannot write net.ipv4.ip_forward, and wg-quick treats a failed PostUp as fatal
---
## What changed
The remote-access VPN reconciled for the first time with a real server key (#60 then #62) and
**the tunnel did not come up**. One line in my own manifest was the whole cause.
Measured in the `wireguard` container on prod, 2026-10-06:
```
[#] ip link add dev wg0 type wireguard
[#] wg addconf wg0 /dev/fd/63
[#] ip -4 address add 10.90.0.1/24 dev wg0
[#] ip link set mtu 1420 up dev wg0
[#] sysctl -q -w net.ipv4.ip_forward=1
sysctl: permission denied on key "net.ipv4.ip_forward"
[#] ip link delete dev wg0
**** Tunnel /config/wg_confs/wg0.conf failed, will stop all others! ****
```
Everything up to that point worked. **The cause is not a missing capability.** With
`hostNetwork: true` the runtime mounts `/proc/sys` **read-only** in the container — confirmed in the
pod's own `/proc/mounts`: `proc /proc/sys proc ro,nosuid,nodev,noexec,relatime` — precisely because
those sysctls are the *host's* globals and a container must not rewrite them. `CAP_NET_ADMIN` cannot
lift a read-only mount, so this can never succeed from here. And `wg-quick` treats any failed
`PostUp` as fatal, so it deleted the interface it had just finished building.
**The line was never needed.** `node_baseline` writes `net.ipv4.ip_forward=1` to
`/etc/sysctl.d/99-k3s-cilium.conf`, and reading the value from inside the pod returns `1`. I had
written the header comment *correctly* — "ip_forward is ALREADY 1 on these nodes … so no pod sysctl
is needed" — and then emitted the sysctl anyway, justified in its own comment as "re-asserted so
this component does not silently depend on another role's sysctl file surviving". That defensive
re-assertion is the entire outage. **The lesson is narrow and reusable: in a hostNetwork pod,
verify host state, never write it.**
Fix:
- **`platform/vpn-ingress/daemonset.yaml`**: the `PostUp = sysctl …` line is gone, replaced by a
**read** in the init container — `grep -qx 1 /proc/sys/net/ipv4/ip_forward` — which fails closed
with a message naming the `node_baseline` role. Reading `/proc/sys` is permitted; only writing is
not. Fail-closed still matters: a tunnel that comes up but cannot forward would satisfy every
probe in this component and silently drop every client's traffic.
- The header bullet that said "no pod sysctl is needed" now also says **do not attempt one**, with
the mechanism, so the next author does not re-add it for the same reason I did.
- The `securityContext` comment claimed NET_ADMIN was for "create the wg0 link, set the host sysctl,
and write the netfilter rules". The middle clause was false; corrected.
- The image's `chown: … Operation not permitted` startup run — plus its own "Permissions could not
be set … we will not provide support for it" — is now documented as **expected and harmless**, in
both the manifest and the runbook, so nobody chases it. Capabilities are dropped to `NET_ADMIN`
only, so its s6 init has no `CAP_CHOWN`; `/config` is a writable tmpfs, everything runs as root,
and `wg-quick` proceeds past it (as it did here — the failure was 30 lines later).
- **`runbooks/vpn-remote-access.md`**: a "what a healthy start looks like" block with the real log
lines; `ip_forward is 0` added to the init-failure table; and the note that `0/1 Running` with
`Startup probe failed: Unable to access interface: No such device` is the signature of `wg-quick`
tearing the tunnel down — read the `[#]` line it died on.
- **`platform/vpn-ingress/README.md`**: a table of what the first reconcile settled (below).
No sensitive paths: `platform/vpn-ingress/**`, `runbooks/**` and `decisions/**` only. This merges on
a green gate with no override.
## What I verified
Live prod, read-only, 2026-10-06. **Four questions this component's design rested on are now
measured rather than assumed — three went the right way, one was the defect above.**
- **The GitOps path is proven end to end.** `Kustomization vpn-ingress` `lastAppliedRevision:
main@sha1:cf7d5e4` equals the GitRepository artifact revision. The Secret carries
`kustomize.toolkit.fluxcd.io/name: vpn-ingress`, so Flux delivered it.
- **SOPS decryption works, proven by digest rather than by eye.** The value in
`platform/vpn-ingress/wg-server-key.sops.yaml` on `main`, decrypted, is 44 bytes, is **not** the
placeholder, and **`wg pubkey` accepts it**. Its SHA-256 equals the SHA-256 of the live Secret's
decoded `data.privatekey` (`d7c8f8de6f252649…` both sides). No key material was printed at any
point — lengths, booleans and digests only.
- **The `wg pubkey` guard fired correctly, and its `ENC[` branch was never needed.** During the
kubelet window before the updated Secret propagated, all three pods reported *"It is still the
committed REPLACE-ME PLACEHOLDER"* — the guard distinguishing a stale/unfilled value from
ciphertext, exactly as designed. It cleared on its own once the mount refreshed; **a transient
`REPLACE-ME` CrashLoop for a minute or two after the key PR merges is expected, not a fault.**
- **The kernel module reaches the pod**: `ip link add dev wg0 type wireguard` succeeded and
`/proc/modules` lists `wireguard`. So the `node_baseline` addition works and `CAP_SYS_MODULE` is
correctly not required.
- **`allowPrivilegeEscalation: false` does NOT break the image's s6 init** — the container reaches
`wg-quick` normally. The flag stays; the fear recorded in #55 is closed.
- **The iptables backends MATCH, which was my single biggest documented doubt.** The image ships
`iptables v1.8.13 (nf_tables)` via `/usr/sbin/xtables-nft-multi`, and Debian 13 is nf_tables. The
nightmare case — rules accepted into a table the kernel never consults, so handshakes succeed and
every forwarded connection hangs — cannot occur on this pairing.
- **`net.ipv4.ip_forward` is `1`** in the host netns the pod shares, and `/proc/sys` is `ro` there.
Both read directly from the pod.
- **Toolbox gate** from an isolated worktree: **rc 3**, with `spec-immutability`, `decisions-log`,
`lint`, `l0`, `render-golden`, `l1` and `approval-policy` all **pass**; rc 3 is the two
environmental skips (`gitea-settings`, conformance L2/L3). **Not green. Reported as rc 3.**
## What I did NOT verify
- **That the tunnel now comes up.** This fix has not reconciled. The next reconcile is the test, and
its success criterion is specific: pods `1/1 Running`, and `wg show` reporting `interface: wg0`
with `listening port: 51820`.
- **That the MASQUERADE and FORWARD rules actually apply.** They are the next statements after the
one that failed, so **they have never executed**. The backends matching (above) removes the worst
failure mode but proves nothing about the rules themselves. First check after the pods go Ready:
`iptables -t nat -S POSTROUTING | grep 10.90.0.0/24` on a node.
- **Anything about client traffic.** Still zero peers enrolled, still no WAN port-forward, still no
off-LAN vantage point. The VPN has carried no packet.
- **Whether the transient `REPLACE-ME` window has an upper bound.** It cleared within ~2 minutes
here; I did not determine the kubelet refresh behaviour, so a longer stall after a key change is
uncharacterised.
- **The `sops set` hand-off command**, still. The operator filled the key in by their own route
(#62), so the exact quoting I documented inside `dev.sh run bash -c` remains unexercised.
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---
date: 2026-10-07
branch: fix/bulk-nfs-truenas
title: Repoint bulk NFS at the TrueNAS (192.168.2.30); the PVs must be recreated, not reconciled
---
## What changed
Both ZFS pools were physically moved off the Proxmox host onto a standalone TrueNAS Community
Edition at **192.168.2.30**, which sits on prod's own `192.168.2.0/24`. `BULK_NFS_SERVER` moves from
`192.168.2.102` (the pfSense DNAT prod used to mount through) to `192.168.2.30`.
- `clusters/prod/kustomization.yaml` — `BULK_NFS_SERVER` → `192.168.2.30`. The comment block that
justified the DNAT, and the "NOT YET DECIDED / THIS PLACEHOLDER IS LOAD-BEARING" banner, are
replaced with the measured export configuration and the recreate requirement below.
- `clusters/base/cluster-vars.yaml` — base default `192.168.1.9` → `192.168.2.30`. That host no
longer exists.
- `clusters/dev/kustomization.yaml` — same; marked explicitly **inert**, since dev is decommissioned
and its nodes are gone. It carries the real address only so nothing in the tree renders a dead one.
- `docs/BULK-NFS-STORAGE.md` — §1 and §5 rewritten for TrueNAS (exports, service settings, the ZFS
`sharenfs` properties that had to be cleared, and the ACL hazard); §7 rewritten now that the
placeholder is gone; §9 retargeted from dev to prod; **new §10** documents the PV
delete-and-recreate. §2/§3/§4/§6 are unchanged by the move.
- `catalog/qbittorrent.yaml`, `platform/monitoring/node-pressure-dashboard.yaml` — two comment/prose
references to `192.168.2.102` as the live export address.
**The headline operational fact: repointing this knob is NOT a plain reconcile.** A bound PV's NFS
source is immutable, so Flux's apply fails rather than updating and the pods keep their old, dead
mount. The five PVs must be deleted and recreated. That sequence is §10 and is an operator action;
it is **not** performed by this PR.
## What I verified
**On the NAS (192.168.2.30), measured 2026-10-07 by the operator at my request:**
- `zfs list` — `Storage` → `/mnt/Storage`, `Storage/plex` → `/mnt/Storage/plex`,
`Storage/nextcloud` → `/mnt/Storage/nextcloud`. The PV paths resolve unchanged.
- Ownership intact: `/mnt/Storage/plex`, `tv/`, `downloads/`, `movies/`,
`downloads/complete/`, `nextcloud/nextcloud/` all `drwxr-xr-x 1000:3000`. `movies/` 1171 entries
and `tv/` 107, against 1165 / 107 measured on Proxmox.
- `acltype=nfsv4` (SCALE's built-in default, `SOURCE: default`), `aclinherit=passthrough`, and no
non-trivial ACLs — mode bits still govern.
- Three stale `sharenfs` dataset properties (`plex`, `nextcloud`, `docker-volumes`) carried over from
Proxmox; cleared with `zfs inherit`, re-checked empty.
- `exportfs -v`: both shares to `192.168.2.10/.11/.12` with `sec=sys,secure,root_squash,no_all_squash`,
`rw` on plex and `ro` on nextcloud.
- `/proc/fs/nfsd/versions` → `+3 +4 +4.1 +4.2`, so the PVs' `nfsvers=4.1` negotiates.
- **A defect was found and fixed during setup:** the plex share listed `192.168.2.13` — an address no
node holds — and so omitted `192.168.2.12` (k3s-prod-3). Corrected and re-verified.
**From the cluster:**
- Node InternalIPs are `192.168.2.10/.11/.12` (`kubectl get nodes`), confirming `.13` was wrong.
- All five NFS PVs currently name `192.168.2.102`.
- `192.168.2.30:2049` and `:111` accept connections; `192.168.2.102:2049` does not.
- **`spec.nfs` immutability, by server-side dry-run** — this is the finding that shapes the change:
`spec.persistentvolumesource: Forbidden: spec.persistentvolumesource is immutable after creation`.
- The pods report `Ready` while their mounts are dead: a `stat /media` answers from attribute cache,
but a `readdir` blocks indefinitely (the PVs mount `hard`). Hence "scale to zero first" in §10.
**Gate:** see the PR; run in the pinned toolbox from this worktree.
## What I did NOT verify
- **Nothing has mounted 192.168.2.30.** No pod has touched the new server — the PVs still point at
the old address and cannot be updated in place. Every §9 probe (numeric-id passthrough, the uid-1000
write, the hardlink/EXDEV check, Plex's read-only posture) is **outstanding**, not passing. The
equivalents passed against the old host on 2026-09-12; that is not evidence about this one.
- **The §10 sequence is reasoned, not executed.** Retain + the renderer's pre-set `claimRef` are read
from the manifests and from `catalog/render.py`; I have not watched a PVC rebind after a PV delete
in this cluster.
- **`root_squash` is a behaviour change from the Proxmox export**, which carried `no_root_squash`. The
argument that nothing needs root on the tree (LSIO drops to 1000; the images chown only their
Longhorn `/config`; both subPath directories already exist at 0755) is reasoned from the images and
the measured permissions. It has not been exercised. If a mount or subPath resolution fails with
EACCES, Maproot `root:root` reproduces the old export and is the first thing to try.
- **Whether NFSv3 can be disabled.** Enabled Protocols is `NFSv3, NFSv4`; the PVs only need v4.1, so
narrowing would close the rpcbind/mountd/statd surface. Not done — it is a change to make after the
cutover is proven, not during it.
- **Whether pfSense / the legacy stack is actually retired.** I measured only that
`192.168.2.102:2049` stopped answering. The other legacy consumers of these datasets
(`192.168.1.6`, `10.123.1.10`, `192.168.1.18`) were dropped from the new exports; if any is still
live, it has lost access. Not checked.
- **L2/L3 conformance.** `vars.CLUSTER_AVAILABLE` is unset, so CI proves the L0/L1 offline subset
only. Nothing in the gate exercises an NFS mount.
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---
date: 2026-10-17
branch: feat/automated-upgrades
title: Automated upgrades — kured + security-only unattended-upgrades, and Renovate finally gets a runner
---
## What changed
Two halves of one process. Neither is useful alone and they must land together.
### (a) OS upgrades and reboots
**`platform/kured/`** — the Kubernetes Reboot Daemon, chart `6.1.0` / app `1.23.0`, in its own Flux
Kustomization (`clusters/base/kured.yaml`, `dependsOn: [platform]`, `wait: true`), registered in
`clusters/base/kustomization.yaml`. Not a line in `platform/kustomization.yaml`: that tier is
`wait: true` and gates `platform-config` → every apps wave, so a wedged reboot daemon placed there
could stall every application in the cluster. A component added to make maintenance safer must not
be able to cause an outage.
**`infra/ansible/roles/unattended_upgrades/`** + `playbooks/unattended-upgrades.yml`, enabled for
prod in `inventory/group_vars/k3s_prod/vars.yml`. A **new** role rather than an extension of
`node_baseline` — different lifecycle, and other open branches touch that role.
**The design, and how it answers this repo's two standing objections to reboot automation.**
`roles/node_baseline/tasks/main.yml:61-67` says "IT DOES NOT REBOOT" (k3s-prod-2 hung on a warm
reboot 2026-09-03; physical power button required), and `docs/plans/cluster-upgrade-plan.md:291-299`
rejected system-upgrade-controller for "automating away the human gate between nodes". Both still
stand. **The human gate is the sentinel.** unattended-upgrades is security-only with the kernel
blacklisted, so it essentially never produces `/var/run/reboot-required`; that file appears when an
operator deliberately runs `node-baseline.yml --tags kernel`. kured then performs only the
*mechanical* half the operator would otherwise type by hand — including the ordering rule
`node_baseline`'s own output has to shout ("NEVER node 2 first"), which the operator keeps by
running the kernel play with `--limit <host>` one node at a time. `cluster-upgrade-plan.md:329-330`
names the condition under which its own rejection reverses (fast disks), and prod is that cluster.
**Quorum: concurrent reboots are structurally impossible.** All three nodes are control-plane+etcd
(quorum 2/3). `concurrency: 1` plus kured's single cluster-wide lock annotation on its own DaemonSet
means a node reboots only while holding that lock, enforced by API-server optimistic concurrency
rather than by timing. **`lockTtl: 0`** (expiry disabled) is the deliberate choice: a TTL exists so
reboots continue after the lock holder dies, which on 3 etcd nodes is exactly the catastrophe — a
hung node's lock expiring would let a second node take the cluster to 1/3. So a hang stops the cycle
forever and pages a human. `lockReleaseDelay: 30m` holds the lock after a node returns.
**The Longhorn gate.** Measured: 25 volumes, all `numberOfReplicas: 3`, one replica per node, with
`replica-soft-anti-affinity: false` and `disable-scheduling-on-cordoned-node: true`. So every drain
takes **all 25 volumes to degraded 2/3**, and recovery is serialized —
`replica-replenishment-wait-interval: 600`, `concurrent-replica-rebuild-per-node-limit: 1`. Reboot
the next node too early and volumes reach 1/3, where `node-drain-policy:
block-if-contains-last-replica` can block a drain forever. The inter-node gate is therefore **volume
robustness, not pod readiness**, and it is doubled: `lockReleaseDelay: 30m` (unconditional, covers
the 600s wait) plus kured's Prometheus alert gate (semantic, covers a rebuild longer than 30m).
**`alertFilterMatchOnly: true` is load-bearing.** The flag inverts the regexp's meaning: `false`
(chart default) makes it an *ignore* list and kured blocks on **any** firing alert. Measured
2026-10-17, five alerts were firing with no end in sight (`CNPGPrimariesCoLocated`,
`KubeDeploymentReplicasMismatch`, `KubeDeploymentRolloutStuck`, `KubePodNotReady`,
`OAuth2ProxyGateUnobserved` — the last three all tracing to `pm-agent`, ImagePullBackOff on a
placeholder digest for 12 days). Under the default, kured would have been blocked on day one and
never rebooted anything, indistinguishable from "no reboots needed". The allow-list is anchored:
`^(LonghornVolumeDegraded|LonghornVolumeFaulted|KubeNodeNotReady|NodeExporterDown)$`.
`NodeEtcdRequestsSlow` and the `NodeIOPressure*` family are **deliberately excluded** despite being
exactly what you'd want to pause for — prod-1 has a documented etcd WAL I/O starvation history and
including them risks a permanent wedge that looks like safety.
**The kernel floor (the highest-risk item), handled with two independent exclusions.** Measured: all
three nodes run `7.1.8+deb13-amd64` (`7.1.8-1~bpo13+1`, the backports metapackage), far above the
6.13 memattr floor — **but `linux-image-6.12.107` and `linux-image-6.12.94` are also still
installed, below the floor, bootable, and `apt-mark showhold` is empty on every node.** So: (1) the
allowed-origins list is `label=Debian-Security` only, and the running kernel comes from
`o=Debian Backports` (pin 100, the `NotAutomatic`+`ButAutomaticUpgrades` signature), so u-u cannot
*see* a kernel upgrade; (2) `^linux-` is blacklisted anyway, so widening origins later — the most
likely future edit — cannot re-arm the hazard. The role **asserts both against `apt-config dump`**,
apt's own parse of the whole directory, rather than trusting the file it just wrote. Also blacklisted:
`intel-microcode`, `amd64-microcode`, `grub-*`. `Remove-Unused-Kernel-Packages` is **false** against
the Debian default, because those older kernels are the documented rollback path. None of this stops
the kernel moving — the operator's deliberate Ansible run still does that, unchanged.
**The silent-no-op trap this closes.** Measured: `update-notifier-common`, `needrestart` and
`unattended-upgrades` were **absent on all three nodes**, so *nothing could create
`/var/run/reboot-required`*. kured deployed alone would have been permanently idle while 1/1 Running
and reporting `kured_reboot_required=0` — green forever. The role installs the sentinel writer and
**asserts a hook exists** by discovery (not a hard-coded path), failing loudly if not.
`needrestart` runs in auto mode with `k3s.service` blacklisted — auto-restart is what makes a
security-only policy effective, but restarting the control plane unattended is worse than a delayed
library fix. (k3s is not an apt package at all here: no `k3s`, no `containerd` in dpkg.)
**Alerts + runbook.** `platform/kured/alerts.yaml` — three rules over kured's *only* metric
(`kured_reboot_required`, one GaugeVec, read from `cmd/kured/main.go:92-96`) plus `kube_node_info`:
`KuredNotReporting` (`absent()` — the pipeline is dead and the other two are inert),
`KuredNodeCoverageGap` (`count(kured) < count(nodes)` — a node silently uncovered, which `absent()`
cannot see), `KuredRebootPending` (`for: 36h` — a reboot was offered and blocked). Companion
promtool suite `alerts.promtool-test.yaml` pins all three both ways, including that the rule
**stops** when a reboot succeeds. `runbooks/node-reboot-automation.md` registered in
`runbooks/kustomization.yaml`.
**The window is DAILY 03:00-06:00, and that choice is driven by the alert.** A weekly window means a
pending reboot legitimately waits 6 days, forcing `for: 8d`+ — longer than this cluster's 7d
Prometheus retention and reset by any restart past the 1h for-outage-tolerance. Daily caps the
legitimate wait under 24h and makes `for: 36h` both robust and meaningful.
### (b) Image / dependency automation
**Renovate was aspirational. It now has a runner.** `.gitea/workflows/renovate.yaml` — scheduled
daily 03:15 UTC, `workflow_dispatch` with `dry_run` defaulting to **true** for a safe first run.
Preflight **fails hard (exit 1)** if `RENOVATE_TOKEN` is missing rather than skipping, because a
skipped Gitea job reports `success` and that is precisely how `renovate.json` stayed inert.
**`renovate.json`: Renovate now owns both halves, and Flux image-automation is formally closed.**
ADR-0009 gave container image tags to Flux image-automation; that cannot be delivered on this
repo's terms. (1) `ImageUpdateAutomation` **pushes commits, it does not open PRs**, so it bypasses
the CLAUDE.md §1 gate; pointed at a side branch instead, nothing opens the PR. (2) It cannot work
here anyway: `main` is protected `user_can_push: false` and the `flux-system` GitRepository has **no
`spec.secretRef`** — the source is anonymous and read-only. (3) Enabling it means an in-cluster git
**write** credential for the repo that defines the cluster. So `docker`/`kubernetes` — disabled
*only* to avoid fighting that controller — are enabled, with `kubernetes.managerFilePatterns`
covering `platform/`, `platform-config/`, `apps/`, **`catalog/`** (apps are generated from it; a bump
only to the rendered output is reverted by the next render and fails `ci/render-golden.sh`),
`runbooks/serving/` and `infra/agent/`. Added a no-automerge `blast-radius` rule for `kured`,
`longhorn`, `cilium`, `cloudnative-pg`, `kube-prometheus-stack`, because the gate is static and does
not boot a node or form a quorum. `platform/kyverno/tests/**` added to `ignorePaths`.
### Sensitive paths — this PR needs a non-author approving review
It touches **`clusters/**`**, **`conformance/**`** and **`.gitea/**`**, all in
`infra/gitea/approval-policy.json`. It will **not** merge on a green gate alone. Per CLAUDE.md §1 I
have **not** posted `/approve-override` and must not — that is the self-approval the stage exists to
prevent.
**The `conformance/` edit, justified.** `+34/-0` in
`alert-metrics-have-scrape-targets/check.sh`: one new `SCRAPE_OWNERS` entry claiming `kured_`. It
**weakens nothing** — no existing owner's evaluation changes — and it *tightens* the check for my
own component, adding two `require` patterns (`service.create: true`, `metrics.create: true`; the
chart defaults **both** to false) plus a `companion` requirement that `networkpolicy.yaml` stay in
the kustomization. It had to be touched: assertion (3) fails any alert over an unclaimed metric, and
the escape hatch `KNOWN_UNWIRED_METRICS` is **shrink-only**, so declaring `kured_*` as debt was not
permitted and would have been wrong anyway. The alternative was shipping reboot automation with no
alerting, which for a component whose every failure mode is silent is the worse choice. The entry
carries a dated comment saying all of this.
## What I verified
Measured against the live cluster and nodes, read-only, on 2026-10-17.
- **Flux image-automation controllers ARE installed and idle.** `-n flux-system get deploy` shows
`image-automation-controller` and `image-reflector-controller` both `1/1`, age **43d**; all three
`image.toolkit.fluxcd.io` CRDs exist. And **zero** `ImageRepository`/`ImagePolicy`/
`ImageUpdateAutomation` objects — "No resources found" for each. The controllers have run for 43
days with nothing to do. `platform/kustomization.yaml:52` has the component commented out.
- **Renovate is aspirational, confirmed three ways**: no workflow in `.gitea/` or `ci/` (grep),
no Renovate CronJob/Deployment/Job in any namespace, and `renovate.json` itself disabled the
`docker`+`kubernetes` managers — so every plain `image:` tag was maintained by **nothing**, while
**seven files** claim "Renovate maintains this pin".
- **`flux-system` GitRepository has no `secretRef`** (empty), URL is the in-cluster Gitea, and its
artifact revision was `main@sha1:1a0b208…`, matching my base.
- **Nodes**: 3× Debian 13 trixie, all `control-plane,etcd`, k3s `v1.36.4+k3s1`, kernel
`7.1.8+deb13-amd64`. `apt-mark showhold` **empty**; `/etc/apt/preferences.d/` **empty**;
`/var/run/reboot-required` absent; `unattended-upgrades`/`update-notifier-common`/`needrestart`
all **absent**; `linux-image-6.12.107` and `6.12.94` installed alongside the backports kernel;
no `k3s`/`containerd` apt package; `apt-cache policy` origins and pins as quoted above.
- **No node taints** on any of the three (so no tolerations needed), and `system-node-critical`
exists.
- **Longhorn**: 1.12.1; `node-drain-policy: block-if-contains-last-replica`;
`replica-soft-anti-affinity: false`; `disable-scheduling-on-cordoned-node: true`;
`replica-replenishment-wait-interval: 600`; `concurrent-replica-rebuild-per-node-limit: 1`;
25 volumes all 3-replica/healthy; 25 replicas per node.
- **6 PDBs with 0 allowed disruptions**: 3× `longhorn-system/instance-manager-*` (structurally 0 —
single-node selector, `minAvailable: 1`) and 3× CNPG `*-primary`. All three Postgres primaries
were on `k3s-prod-1`.
- **kured drain flags do not exist.** Read `cmd/kured/main.go:438-449`: `Force`,
`DeleteEmptyDirData` and `IgnoreAllDaemonSets` are **hardcoded true**. Passing
`--ignore-daemonsets`/`--delete-emptydir-data`/`--force` as extraArgs would CrashLoop the
DaemonSet. All three are genuinely needed (12 DaemonSets, 135 emptyDir pods measured).
- **kured exposes exactly one metric** — the only `MustRegister` in the project.
- **Prometheus selectors are all `{}`** (`serviceMonitorSelector`, `serviceMonitorNamespaceSelector`,
`ruleSelector`, `ruleNamespaceSelector`), so a `PrometheusRule`/`ServiceMonitor` in a new namespace
is picked up with no label plumbing.
- **`count(kube_node_info) == 3`** and `count(longhorn_volume_robustness) == 100`, queried through a
read-only port-forward. The 5 chronically-firing alerts were read from `/api/v1/alerts`.
- **`LonghornVolumeDegraded`** is `longhorn_volume_robustness{state="degraded"} == 1`, `for: 10m` —
shorter than Longhorn's own 600s replenishment wait, so degradation reliably outlasts the latch.
- **kured chart 6.1.0 → appVersion 1.23.0** is the newest of 80 entries in the chart index.
- **Kyverno/PSA will not block it**: every policy is scoped
`app-namespace: "true"`; the namespace sets it explicitly `"false"`, and
`restrict-host-namespaces.yaml`'s own header states that carve-out. No cluster-wide PSA baseline.
- **`renovate.json` parses** as valid JSON after my edits (`json.load`).
- **kured is not installed** and the string `kured` appears nowhere in the repo — greenfield.
### CORRECTION 2026-10-18 — the first real run FAILED, and the sentinel design was wrong
`ansible-playbook playbooks/unattended-upgrades.yml -e k3s_hosts=k3s_prod` failed on all three
nodes at the package task:
```
fatal: [k3s-prod-1]: FAILED! => "No package matching 'update-notifier-common' is available"
```
**`update-notifier-common` is an UBUNTU package and does not exist in Debian.** Measured on trixie:
`apt-cache policy update-notifier-common` → `Candidate: (none)`. The original entry asserted this
package "owns the hook that creates /var/run/reboot-required" — true on Ubuntu, false here, and the
role could never have worked. This was the exact risk the first version of this entry flagged ("the
`find` patterns are a guess at which package ships what") landing in a worse place than predicted:
not a wrong glob, a nonexistent package.
Three further measurements settled what to do instead:
* `/usr/share/update-notifier/notify-reboot-required` is **absent**.
* **No `linux-image-*` postinst references `notify-reboot-required`** — invoking it is an Ubuntu
patch, so merely placing a script at that path would never be called.
* No hook under `/etc/apt/apt.conf.d` or `/etc/kernel/` mentions `reboot-required`.
So Debian trixie has **no stock mechanism at all**, and the role now ships the writer itself:
`/usr/local/sbin/k3s-notify-reboot-required` (compares the running kernel against the newest
installed via `linux-version`, from `linux-base`, which every `linux-image` depends on — measured
`linux-base 4.12.1` present) plus a `DPkg::Post-Invoke` hook at
`/etc/apt/apt.conf.d/99-k3s-reboot-required`. `/run` is a tmpfs (measured), so the sentinel
self-clears on boot and needs no cleanup task.
The verify assert changed shape too: it was a `find` glob over `/etc/kernel/postinst.d` and
`/etc/apt/apt.conf.d` for `*update-notifier*` / `*unattended-upgrades*`. That glob was **weaker
than it looked** — it would have matched Debian's own `unattended-upgrades` apt conffile and
reported "sentinel writer present" while no writer existed. It now stats the two exact paths this
role owns and requires the script to be executable.
**Newly verified (this correction):** the sentinel script was executed on prod-1 as the
unprivileged `k3s` user under `sh -x`. It resolved `running=7.1.8+deb13-amd64`,
`newest=7.1.8+deb13-amd64`, took the equal branch, exited 0 and wrote nothing — correct, since the
running kernel *is* the newest. `sh -n` and `bash -n` clean.
**Still NOT verified after this correction:** the *writing* half. Because running == newest on all
three nodes, the `touch` path has never executed, so I have not seen the sentinel actually created,
nor seen kured react to it. The honest test is the operator's next kernel upgrade. Also unverified:
whether a `DPkg::Post-Invoke` hook fires in the `unattended-upgrades` code path specifically (it
runs dpkg, so it should, but that is inference) — and whether `linux-version sort --reverse` orders
a mixed backports/stable kernel set the way I assume when a 6.12 and a 7.1 are both installed. It
produced the right answer with the current set; a future set could differ.
## What I did NOT verify
The honest list. Most of this needs an actual upgrade cycle, which I did not and could not run.
- **I never ran an OS upgrade, never rebooted a node, and never watched kured take a lock.** No part
of the runtime behaviour of either half has been observed. `sudo` needs a password I do not have,
so I could not run `apt`, `unattended-upgrade --dry-run`, or install anything. **Everything about
(a) working is inference from configuration and measured cluster state, not observation.**
- **The Ansible role has never been executed.** Not syntax-checked by `ansible-playbook --syntax-check`
either (no inventory access from the gate). Its asserts, its `apt-config dump` parsing, and the
sentinel-hook discovery are all unproven. The `find` patterns for the sentinel hook are a *guess at
which package ships what* — I could not read `update-notifier-common`'s file list (packages.debian.org
returned no such package for that suite/arch), which is exactly why the role discovers rather than
hard-codes. **If no hook matches, the role fails loudly — but it may fail on a correct node.**
- **Whether CNPG actually switches the primary in response to a drain-induced eviction.** All three
`*-primary` PDBs are structurally 0-disruption and `.spec.nodeMaintenanceWindow` is unset on all
three clusters. If the operator does not switch over, draining `k3s-prod-1` blocks on three PDBs at
once and hits `drainTimeout`. **This is the most likely way the first real reboot fails.** It
should be tested with one manual, watched `kubectl drain` before trusting the timer.
- **Whether `drainTimeout: 15m` is long enough.** Unmeasured. The `unifi` VMI has
`evictionStrategy: LiveMigrate` with `migrationMethod: BlockMigration`, i.e. a full root-disk copy
over the network on every `k3s-prod-1` drain. I do not know how long that takes.
- **Whether the alert gate actually blocks as intended.** I never saw kured query Prometheus. The
assumption that it treats a query error as "do not proceed" is from its documented behaviour, not
observed. The NetworkPolicy allowing kured→Prometheus:9090 and Prometheus→kured:8080 is
**unproven**; if either is wrong the symptom is silence, which is why `KuredNotReporting` exists —
but that alert is itself unproven against a live scrape.
- **The alert expressions have not run against real `kured_*` data**, because the metric does not
exist in this cluster yet. They pass promtool unit tests against synthetic series whose shape I
read from kured's source. `absent()` and the `count() < count()` comparison are the two most
likely to behave differently against real label sets.
- **`enabledManagers: ["regex"]` may be the wrong name.** Modern Renovate expects `custom.regex` for
`customManagers`. I left the pre-existing value alone rather than guess, but **the inline
`# renovate:` markers may simply not run.** Unverifiable without executing Renovate. Two markers
are additionally known-broken independent of this: `external-snapshotter`'s sits two comment lines
above its `newTag`, and Keycloak's `kustomization.yaml` has no marker at all despite a comment
claiming Renovate maintains it.
- **Renovate has still never run.** I added the runner; `RENOVATE_TOKEN` does not exist yet, so the
first scheduled run **will fail** (by design). Nothing about the config is proven correct until a
`dry_run: true` dispatch is read by a human. Expect it to want to open ~30 PRs.
- **No alert for "automatic patching silently stopped".** u-u's success lives in
`/var/log/unattended-upgrades/` on each node and nothing reads it. Likewise **no alert for the
Renovate schedule ceasing to fire**. Both are real gaps I did not close.
- **`coredns` is 1 replica and I did not fix it.** It is k3s-managed, out of this PR's scope, and it
means every `k3s-prod-1` reboot causes a cluster-wide in-cluster DNS gap. Recommended follow-up.
- **kured cannot honour "NEVER node 2 first".** It has no ordering control. The mitigation — run the
kernel play with `--limit` one host at a time — is a *procedure*, documented in the runbook, not an
enforced property. If the operator flags all three nodes at once, kured picks the order.
- **kured cannot press a power button.** The 2026-09-03 warm-reboot hang is unmitigated. Bounded, not
prevented: quorum holds at 2/3, the lock is held forever so nothing cascades, and
`KuredRebootPending` eventually fires.
- **Upstream version claims are a snapshot, partly from search results**, not all from authoritative
release APIs. I could not determine latest for versitygw, crafty, nginx-unprivileged, act_runner,
`virt-template-*`, the linuxserver wireguard date-tag, or the exact latest PostgreSQL 16 patch
(sources conflicted 16.10 vs 16.15). **The gitea `1.24.3 → v28.1.0` gap is almost certainly an
upstream versioning-scheme change, not 26 majors — do not act on that framing.**
- **I did not verify Renovate's `kustomize` manager still processes `images:`/`newTag`** now that
`docker` is enabled, which decides whether `external-snapshotter` and `intel-gpu-plugin` are
managed at all.
- **I did not raise any HelmRelease version ceiling**, so the 9 minor-locking ranges still cap
Renovate at patches. Bumping `kube-prometheus-stack` in particular will fail the gate until
`ci/versions.env`'s exact promtool/Prometheus `3.14.0` lockstep moves with it.
- **L2/L3 conformance did not run** (`vars.CLUSTER_AVAILABLE` unset), so nothing here is proven
against a cluster by CI either.
@@ -0,0 +1,106 @@
---
date: 2026-10-17
branch: feat/graceful-cluster-shutdown
title: "Graceful node shutdown was never configured, and scaling a StatefulSet deleted its PVC"
---
## What changed
All three nodes had to be powered off to move them onto a UPS. There was **no procedure for it**:
`infra/cluster.sh stop` is `virsh`-based and only ever applied to the decommissioned dev cluster, so
the whole sequence was improvised live. Two defects came out of doing it.
**1. Kubelet graceful node shutdown was unconfigured on every prod node.** No `shutdownGracePeriod`
anywhere in `infra/ansible/`, so `shutdown -h` stopped k3s, containerd went with it, and every pod
was SIGKILLed where it stood — 9 CloudNativePG instances mid-checkpoint, the UniFi VM, and 25
attached Longhorn volumes. `roles/k3s_server` now writes `kubelet-arg` into
`/etc/rancher/k3s/config.yaml` with `shutdown-grace-period=90s` and
`shutdown-grace-period-critical-pods=20s`.
The half that is easy to miss and silently defeats the other half: **graceful node shutdown is
enforced by logind, not by the kubelet.** The kubelet holds an inhibitor *delay* lock and systemd
waits at most `InhibitDelayMaxSec` — **default 5 seconds** — before proceeding regardless. A grace
period above that cap is truncated with no error, so the feature looks configured and still
hard-kills pods. The role now ships a `logind.conf.d` drop-in setting it to 120, and **asserts**
`k3s_logind_inhibit_delay_max_sec >= k3s_kubelet_shutdown_grace_period` rather than documenting the
relationship, because the failure is invisible.
**2. Scaling a StatefulSet to 0 DELETED its PVC and Longhorn volume.** `monitoring/loki` carries
`persistentVolumeClaimRetentionPolicy: {whenDeleted: Delete, whenScaled: Delete}`, so the quiesce's
`scale --replicas=0` destroyed `storage-loki-0` outright. Loki stores with `type: filesystem`, so
that PVC was the only copy of its log data. This is the defect in this change set that actually
destroyed something, and it was mine.
New `infra/maintenance/quiesce.sh` (`quiesce` | `resume` | `status`) encodes the sequence that
worked, and **refuses to scale any StatefulSet whose `whenScaled` is `Delete`** — it leaves it
running, accepts that its volume hard-detaches at poweroff, and prints which volumes to expect
`degraded`. A rebuild is a vastly better outcome than a deletion. Workload discovery is computed
from the live cluster (every Deployment/StatefulSet whose pods mount a PVC, Longhorn or TrueNAS NFS)
rather than hardcoded, so a newly onboarded service is covered without anyone remembering to add it.
`runbooks/cluster-maintenance-shutdown.md` (new, registered in `runbooks/kustomization.yaml`) is the
operator page: shutdown order, the TrueNAS-after-nodes constraint, power-on order, the
un-hibernate-Postgres step Flux will not do for you, and a "what looks broken but is fine" section
separating the `4/19`-Kustomizations-Ready cascade, the degraded-and-rebuilding volume and the
self-recovering `keycloak-operator` from the one thing that genuinely needs a human (a stuck
`oauth2-proxy` replica).
## What I verified
* **Graceful shutdown was genuinely absent**, not merely undocumented: `grep -rn
'shutdownGracePeriod|graceful-node-shutdown'` over `infra/ansible/` returns nothing, and no
`logind` or `InhibitDelay` setting exists anywhere in the tree.
* **The whole shutdown/restart cycle was executed end to end on prod 2026-10-17** and the cluster
came back: 3/3 nodes Ready with etcd `healthz` ok, 19/19 Flux Kustomizations Ready,
`platform-config`'s `lastAppliedRevision` equal to the GitRepository artifact revision, all 3
CNPG clusters `healthy` with primaries elected, the UniFi VM `Running`, PiHole resolving
(`home.keithjackson.dev` → `192.168.2.20` via `192.168.2.23`), and the Gateway serving
`200/200/401` for apex/gitea/plex.
* **The PVC-deletion mechanism is confirmed, not inferred:** `kubectl get sts loki -o
jsonpath={.spec.persistentVolumeClaimRetentionPolicy}` returns
`{"whenDeleted":"Delete","whenScaled":"Delete"}`, the PVC was `NotFound` after the cycle, and the
Longhorn volume count had gone 25 → 24.
* **The damage was repaired and verified:** `scale sts loki --replicas=1` (restoring the replica
count the chart declares) recreated `storage-loki-0` as a fresh 50Gi Bound PVC, `loki-0` reached
`2/2 Running`, and the volume count returned to 25.
* **The guard works against the live cluster**, tested both ways: `sts_deletes_pvc_on_scale
monitoring loki` returns true (would be skipped) and `pihole pihole` returns false (safe to
scale).
* **The script's read-only paths run clean on prod:** `status` reports correctly, and the discovery
function returns the 13 workloads currently holding a PVC.
* `bash -n` clean; the two edited Ansible YAML files parse.
## What I did NOT verify
* **The kubelet change has NEVER BEEN APPLIED OR TESTED.** This is the significant gap. I did not
run the role, did not restart k3s, and have **not** observed a node actually drain on
`shutdown -h`. Everything about it is reasoning from kubelet/systemd semantics plus the measured
absence of the setting. Applying it needs a **rolling** k3s restart (`serial: 1` — kube-vip keeps
the API up, etcd holds at 2/3), which is an operator action (CLAUDE.md §5). **Verify by draining
one node for real:** apply, then `shutdown -h now` on a single node and watch whether pods
terminate gracefully instead of vanishing.
* **Whether 90s/20s are the right numbers.** Chosen to comfortably cover a Postgres fast shutdown
and a Longhorn flush; not measured against either. The budget is spent on every reboot, so if a
node takes noticeably longer to go down, this is why.
* **Whether k3s accepts `kubelet-arg` in `config.yaml` as written.** The file already carries
`kube-apiserver-arg` as a list and `kubelet-arg` is the documented sibling, but I did not render
or apply it, so a typo would surface only at k3s restart — and a bad `config.yaml` is exactly the
kind of thing that makes k3s fail to come up. **Review this one before applying.**
* **The `assert` task's `regex_replace` on the grace period** assumes a plain `90s`-style value; a
value expressed as `1m30s` would parse to the nonsense integer `130`. Fine for the committed
defaults, wrong if someone writes a compound duration.
* **`resume`'s Flux-reconcile wait has never run**, and neither has `quiesce` as a script — the
2026-10-17 cycle was done with the equivalent commands by hand, so the script encodes a sequence
that worked but has not itself been executed end to end. Only `status` and the discovery and guard
functions have run.
* **Loki's lost log window is gone for good.** Up to 72h of logs (its `retention_period`), destroyed
by my scale-down. Nothing recovers it; Velero's schedules cover the namespace but the PVC was
deleted, not corrupted, and I did not attempt a restore because the data self-expires anyway.
* **No other `whenScaled: Delete` StatefulSet was audited.** The guard now catches them generically,
but I did not enumerate which other workloads carry the policy, so I cannot say loki was the only
one at risk. The runbook gives the one-liner to list them.
* **TrueNAS and the router are entirely outside this change.** TrueNAS is not in the Ansible
inventory and refuses SSH, so its shutdown stays a web-UI step with no automation and no check.
* **No runtime conformance.** `vars.CLUSTER_AVAILABLE` is still unset, so CI proves the L0/L1
offline subset only.
* I did not re-measure branch protection or runner state (CLAUDE.md §2b).
+311
View File
@@ -0,0 +1,311 @@
---
date: 2026-10-17
branch: feat/keycloak-passkeys
title: Passkeys declared for the homelab realm — and the realm import will not apply them
---
## What changed
`platform/keycloak/keycloak-realm-import.yaml` now declares passkey (WebAuthn Passwordless)
login for the `homelab` realm, in two parts:
1. **The WebAuthn Passwordless policy.** Ten `webAuthnPolicyPasswordless*` fields on the realm:
RP ID `${BASE_DOMAIN}`, RP entity name `Homelab SSO`, signature algorithms `[ES256, RS256]`,
`requireResidentKey: "Yes"`, `userVerificationRequirement: required`,
`authenticatorAttachment: "not specified"`, `attestationConveyancePreference: none`,
`acceptableAaguids: []`, `createTimeout: 300`, `avoidSameAuthenticatorRegister: true`.
Deliberately the **passwordless** family only; the two-factor `webAuthnPolicy*` family is left
at Keycloak's defaults because nothing in this realm uses `webauthn-authenticator`.
2. **The browser flow.** `browser-mfa` keeps its alias and stays bound as `browserFlow`; its
interior is restructured so a passkey is an **ALTERNATIVE** beside the password form:
```
browser-mfa (top level, unchanged)
browser-mfa-forms ALTERNATIVE
auth-username-form REQUIRED <- was auth-username-password-form
browser-mfa-passkey-or-password REQUIRED <- NEW sub-flow
webauthn-authenticator-passwordless ALTERNATIVE <- NEW: the passkey
browser-mfa-password-and-otp ALTERNATIVE <- NEW sub-flow
auth-password-form REQUIRED <- was half of the combined form
browser-mfa-conditional-otp CONDITIONAL (unchanged, relocated intact)
```
The design decisions, with their reasoning, are written into the manifest comments in this repo's
usual density. The ones that matter:
* **Additive, not replacing. Enrolment optional, not forced.** This IdP gates Grafana, Gitea,
Nextcloud, Headlamp, Semaphore, PiHole, Crafty, the \*arr stack *and* `kubectl` via the
`kubernetes` OIDC client. A mandatory passkey flow that misfires is a total lock-out from the
platform and the cluster API at once, leaving only the Keycloak bootstrap admin and the
break-glass cert kubeconfig. The gain from forcing it (one human stops typing a password) does
not price that risk.
* **No `requiredActions` block was added, on purpose.** Declaring one would have been the obvious
way to add `webauthn-register-passwordless`, and it would have been actively dangerous — see
"What I verified".
* **RP ID is `${BASE_DOMAIN}`, not `keycloak.${BASE_DOMAIN}`.** A passkey's RP ID is fixed at
enrolment and can never be re-keyed, so it must not be bound to a name that can move. This realm
already declares an `auth.${BASE_DOMAIN}` redirect URI, and this repo already owns a reconciler
built because a hostname move silently failed to reach the realm. Residual risk, unavoidable:
changing `BASE_DOMAIN` itself invalidates every enrolled passkey.
* **A passkey login is not also asked for TOTP.** `browser-mfa-conditional-otp` hangs off the
password branch only. The justification is `userVerificationRequirement: required` — the
ceremony already proves possession plus a verified human, phishing-resistantly and origin-bound.
Stacking a replayable shared secret on top of that buys friction. The manifest names the exact
one-line edit to reverse this decision.
* **Login becomes two screens** (username, then password) for every user, passkey or not, because
the server must know who is logging in before it can decide whether a passkey exists. Accepted
cost; it is the enabling change.
* **Usernameless login deliberately not used**, although Keycloak 26.0.6 supports it — see "What I
verified" for the measured reason it would have made every login open on a passkey prompt.
`platform/keycloak/README.md` gains a `## Passkeys` section: the decision table, the fact that
this does not reach the live realm, the two operator paths that would apply it, and the four-step
browser verification nobody has run.
No secret, key, credential or AAGUID was minted or committed. No file under `clusters/**`,
`conformance/**`, `ci/**`, `platform/kyverno/**`, `**/rbac.yaml` or `**/*.sops.yaml` was touched,
so this should not trip `ci/approval-policy.sh`'s sensitive-path review requirement.
## What I verified
**The live realm import has already completed and will never re-run.** Measured on prod,
2026-10-17:
```
$ kubectl --context k3s-prod -n keycloak get keycloakrealmimport homelab -o jsonpath='{.status}'
{"conditions":[{"message":"","status":"True","type":"Done"},
{"message":"","status":"False","type":"Started"},
{"message":"","status":"False","type":"HasErrors"}]}
```
`Done=True` / `Started=False`, exactly the one-shot state `platform/keycloak/README.md` already
documents for client secrets and client URLs. **So the change in this PR has zero effect on how
anyone logs in today**, and the client-secret/client-URL reconciler does not and cannot close the
gap: its hard endpoint allow-list makes `/authentication` unreachable by design, and realm-level
policy fields are not client fields.
**The CRD accepts every field I used.** Measured against the live CRD (not the upstream docs):
`kubectl --context k3s-prod get crd keycloakrealmimports.k8s.keycloak.org` lists all twelve
`webAuthnPolicyPasswordless*` properties with the types I wrote (`RequireResidentKey`,
`RpEntityName`, `RpId`, `UserVerificationRequirement`, `AttestationConveyancePreference`,
`AuthenticatorAttachment` as `string`; `SignatureAlgorithms`, `AcceptableAaguids`, `ExtraOrigins`
as `array/string`; `CreateTimeout` as `integer`; `AvoidSameAuthenticatorRegister` as `boolean`),
plus `authenticationFlows`, `authenticatorConfig` and `requiredActions`. The `spec.realm` schema
has **no** `x-kubernetes-preserve-unknown-fields`, so a misspelled field would have been pruned
silently rather than rejected — which is why this was checked rather than assumed.
**Running Keycloak is 26.0.6.** `quay.io/keycloak/keycloak:26.0.6` on `keycloak-0`/`keycloak-1`,
operator `quay.io/keycloak/keycloak-operator:26.0.6`. Every source claim below is read from the
`26.0.6` tag, not from memory or from docs.
**Every provider ID is quoted from upstream source, not guessed.**
| String I used | Where it is defined at tag 26.0.6 |
|---|---|
| `webauthn-authenticator-passwordless` | `WebAuthnPasswordlessAuthenticatorFactory.PROVIDER_ID`, display "WebAuthn Passwordless Authenticator" |
| `auth-username-form` | `UsernameFormFactory.PROVIDER_ID`, display "Username Form" |
| `auth-password-form` | `PasswordFormFactory.PROVIDER_ID`, display "Password Form" |
| `webauthn-register-passwordless` | `WebAuthnPasswordlessRegisterFactory.PROVIDER_ID` (referenced in comments only) |
**`requiredActions` is REPLACE, not merge — measured, and it is why I did not declare one.**
`model/storage-private/.../DefaultExportImportManager.java` lines 327-338:
```java
if (rep.getRequiredActions() != null) {
for (RequiredActionProviderRepresentation action : rep.getRequiredActions()) { ... }
DefaultRequiredActions.addDeleteAccountAction(newRealm);
} else {
DefaultRequiredActions.addActions(newRealm);
}
```
Declaring one required action therefore skips the entire default set. `RealmManager` is no
backstop: `setupRequiredActions` is `if (realm.getRequiredActionProvidersStream().count() == 0)`,
and the count is already non-zero by then (`RepresentationToModel.importRealm` runs at
`RealmManager.java:585`, the backstop at `:612`). A realm built that way would have had the passkey
action plus `delete_account` and nothing else — **no `CONFIGURE_TOTP`**, which would leave
`auth-otp-form` demanding a TOTP that no platform-admin could ever enrol: a hard lock-out
delivered by a change whose purpose was to *add* a login method.
**And declaring it would have bought nothing.** `DefaultRequiredActions.addWebAuthnPasswordlessRegisterAction`
registers `webauthn-register-passwordless` with `setEnabled(true)`, `setDefaultAction(false)`,
priority 80, gated on `Profile.Feature.WEB_AUTHN` — which is `Type.DEFAULT` in
`common/.../Profile.java:74`, i.e. on unless explicitly disabled. `enabled=true` /
`defaultAction=false` *is* the additive-and-optional posture this change wants.
**`authenticationFlows` has the opposite semantics, which is why declaring flows is safe.**
`importAuthenticationFlows` adds the declared flows, then backfills each unbound binding
(browser, registration, direct grant, reset credentials, client auth, first broker login, docker
auth) from the built-in defaults individually (`DefaultExportImportManager.java` ~1320-1410).
**The graceful degradation to password is measured from the flow engine, not assumed.** For a user
with no passkey: `WebAuthnPasswordlessAuthenticator.requiresUser()` returns `false`, so
`DefaultAuthenticationFlow.processSingleFlowExecutionModel` takes the `else` branch (`daf:456-462`),
whose four conditions all hold — a user is set (from `auth-username-form`), `configuredFor` is
false, `WebAuthnPasswordlessAuthenticatorFactory.isUserSetupAllowed()` is `false`, and
`WebAuthnAuthenticator implements Authenticator, CredentialValidator<...>` — so it raises
`CREDENTIAL_SETUP_REQUIRED`. The ALTERNATIVE loop (`daf:289-302`) catches exactly that, marks the
execution `ATTEMPTED` and proceeds to the next alternative, with the upstream comment *"the user,
since he has alternatives, should be able to go to another alternative and continue"*. Hence: no
passkey, no passkey screen, straight to the password form.
**Why usernameless was rejected, measured.** The `configuredFor` guard sits inside the
`requiresUser()` branch. With `requiresUser()` false and no user yet in context, that guard is
skipped and the engine just calls `authenticate(context)` — so a passkey execution placed before
the username form is offered to *everyone*, including users who will never own one.
**The policy sentinels are read from the shipped code, and one of my initial assumptions was
wrong.** `Constants.DEFAULT_WEBAUTHN_POLICY_NOT_SPECIFIED = "not specified"` is the
realm-representation sentinel — but `WebAuthnConstants.OPTION_NOT_SPECIFIED = ""` (empty string) is
the WebAuthn-API-level one. I checked both because they disagree. The login theme's
`webauthnRegister.js` at 26.0.6 settles the behaviour:
```js
if (input.requireResidentKey !== 'not specified') {
if (input.requireResidentKey === 'Yes') { authenticatorSelection.requireResidentKey = true; }
else { authenticatorSelection.requireResidentKey = false; }
}
...
if (input.createTimeout !== 0) { publicKey.timeout = input.createTimeout * 1000; }
rp: {id: input.rpId, name: input.rpEntityName}
```
So `"Yes"` is a literal string compare (any other non-sentinel value means *false*), `"not
specified"` is compared literally for four fields, and `createTimeout` is **seconds** with `0`
meaning "send no timeout". It also shows 26.0.6 emits only the legacy `requireResidentKey` member,
never `residentKey: "required"` — the client maps that per WebAuthn L2, but the policy cannot
express `residentKey: "preferred"` at all.
`[ES256, RS256]` is exactly `WebAuthnPolicy.DEFAULT_POLICY` /
`Constants.DEFAULT_WEBAUTHN_POLICY_SIGNATURE_ALGORITHMS` — declared explicitly, not changed.
`getWebAuthnPolicyPasswordless` was read field by field to confirm `[]` for `acceptableAaguids`
means "no restriction" and that `RpEntityName` must be non-empty or the **update** path
(`DefaultExportImportManager.java:842`) drops the whole policy silently.
**The manifest parses and renders.** `yaml.safe_load` round-trips the file and the flow graph reads
back exactly as designed (five flows, the executions and priorities above, `browserFlow:
browser-mfa`, `requiredActions` absent). `python3 ci/render-keycloak-client-urls.py --check` →
`client-urls.yaml is in sync`, rc 0 (no client URL changed, so no regeneration was needed).
`yamllint -c ci/yamllint.yaml platform/keycloak/keycloak-realm-import.yaml` → rc 0; no line exceeds
the 160-column ceiling.
**`browser-mfa` keeps its alias deliberately.** `conformance/tests/l2-behavioral/keycloak-config-as-code`
asserts `kubectl get keycloakrealmimport homelab -o jsonpath={.spec.realm.browserFlow} | grep -q
'browser-mfa'`. Renaming the top-level flow would have failed that test.
**Envsubst safety.** `platform-config`'s Flux Kustomization declares
`postBuild.substituteFrom: cluster-vars` (`clusters/base/platform-config.yaml:26-29`), so this file
is substituted. The only brace token I added is `${BASE_DOMAIN}`, which is declared at
`clusters/base/cluster-vars.yaml:42` (`home.keithjackson.dev`). Every comment I wrote avoids braces
entirely — the RP-ID discussion says `keycloak.<BASE_DOMAIN>` with angle brackets precisely so an
unparseable token cannot fail the whole Kustomization.
**Gate result: rc 3, zero failures, `gitea-settings` the only stage the gate counts as not-run** —
the documented honest best local outcome. Run in the pinned toolbox from this worktree with all
three §3 workarounds (`DEV_KUBECONFIG=/dev/null`, plus an `ENGINE` shim bind-mounting the main
checkout's `.git` and the sibling spec repo with `SPEC_REPO=/home-network-k3s`):
```
[ ok ] stage spec-immutability: pass <- NOT skipped; both shim mounts worked, R-TEST-06 covered
[ ok ] stage decisions-log: pass <- archive frozen, 48 entries well-formed
[ ok ] stage lint: pass
[ ok ] stage l0: pass <- incl. flux-postbuild-substitution + keycloak-client-secret-reconciler
[ ok ] stage render-golden: pass
[ ok ] stage l1: pass
[ ok ] stage approval-policy: pass <- no sensitive path touched, so no non-author review needed
[skip] stage gitea-settings: SKIPPED <- needs SETTINGS_API_TOKEN, CI-only; expected
[skip] stage conformance: SKIPPED <- cluster-gated L2/L3; expected
MERGE GATE: UNDETERMINED — Stages that did not run: gitea-settings
```
No lint finding and no check failure names either file I changed. Touched requirements resolved to
`R-IDP-01 R-IDP-02 R-IDP-03 R-IDP-04 R-IDP-05 R-IDP-06`; coverage 51/51, 0 gaps.
**A note on how that number was obtained, because the first attempt was worthless.** My first gate
run returned the same rc 3 and the same seven passes — against a tree that did not contain this
change at all. The gate's `tracked_files()` reads **git**, and my edits were still uncommitted, so
every stage gated `origin/main`. The tell was in the log and I nearly missed it: the
touched-requirement subset reported UNDETERMINED with *"check out the feature branch you mean to
gate (not the base branch)"*, and `decisions-log` counted **47** entries rather than 48. **A green
gate run on an uncommitted worktree is a gate run on the base branch.** The numbers above are from
the second run, after committing and rebasing.
**The base moved under me mid-run.** `origin/main` advanced from `9a41a8e` to `1a0b208` (PR #70,
oauth2-proxy OIDC startup race) while I was working. This branch is rebased onto `1a0b208`, so the
gate above ran on the base CI will actually merge into. The rebase was clean — PR #70 touched
`platform/oauth2-proxy/helmrelease.yaml` and its own decisions entry, disjoint from these files.
## What I did NOT verify
**This change is unapplied. It changes nothing about the live realm, and I did not attempt to make
it.** `Done=True` / `Started=False` was measured, not inferred, and I ran no mutating `kubectl`,
no `flux reconcile`, no admin-API call and no `kcadm`. Whether the operator's eventual
admin-console reconstruction of this flow matches what is declared here is, by construction,
unverifiable from git.
**I never enrolled a passkey and never pointed a browser at any of this.** Nothing here has been
exercised by a real WebAuthn ceremony on any device. Specifically unverified:
* **That the RP ID works.** `home.keithjackson.dev` is a registrable-domain suffix of
`keycloak.home.keithjackson.dev`, so it *should* satisfy the browser's check — but I verified
that by reading the WebAuthn rule, not by watching a browser accept it. A wrong RP ID fails
**silently, in the browser, before Keycloak is involved**, with no server-side log line. If
enrolment produces no OS prompt and no error, this is the first suspect.
* **That `"not specified"` is the right literal for `authenticatorAttachment` in a realm import.**
I traced it to `Constants.DEFAULT_WEBAUTHN_POLICY_NOT_SPECIFIED` and to the theme's string
compare, but I have not seen a realm import accept it. Omitting the field would default to the
same value; if an import ever rejects the literal, drop the line.
* **That `createTimeout: 300` behaves.** Seconds-vs-milliseconds is read from the theme JS. The
claim that 300 is long enough for the cross-device QR/hybrid flow, and that Chrome clamps rather
than rejects it, is reasoning about browser behaviour, not a measurement.
* **Whether a passkey user can still reach the password form.** I argued it from
`createAuthenticationSelectionList` producing a "Try another way" option, and I noted that for a
user holding both credentials the *first* screen is chosen by the user's own credential ordering
rather than by my priorities. Neither was observed.
* **The two-screen login regression for ordinary users.** `auth-username-form` +
`auth-password-form` replacing `auth-username-password-form` is a visible change for every user
including non-passkey family accounts, and nobody has logged in through it.
* **That conditional OTP for platform-admins still fires on the password branch.** The sub-flow and
its `conditional-otp-platform-admin` config are byte-identical and merely relocated one level
deeper, but "identical YAML" is not "still enforced at runtime". This is the highest-value
regression check and it is untested. The previous breakage of this exact step
(`condUserRole` vs a non-existent property key) 403'd every platform-admin login.
* **That a platform-admin authenticating by passkey is not challenged for TOTP.** That is the
intended behaviour of the shape I wrote; it is unobserved, and it is also a deliberate
relaxation of R-IDP-04 as previously implemented, which the operator may want to reverse.
**Whether the realm import reconciles into an existing realm: measured as NO for the completed
one-shot, but I did not test a re-import.** I did not delete and recreate the
`KeycloakRealmImport`, so I cannot say what a re-run would do to the existing `homelab` realm —
whether it would merge the new policy and flows, duplicate flow aliases, or fail. The 2026-09-06
total SSO outage documented in `platform/keycloak/README.md` is the reason I did not experiment.
**Treat the re-import path in the README as untested advice, not a runbook.**
**Nothing was proved about the live realm's current state.** I did not read the realm's existing
required actions, its existing WebAuthn policies, or its live flow executions — doing so needs the
admin credential and I did not decrypt or use it. So I cannot confirm that the live realm's
required-action set actually contains `webauthn-register-passwordless` today; I can only show that
Keycloak 26.0.6's defaults register it and that this repo's import never declared any required
actions to suppress them. **That inference has not been checked against the realm.**
**L2/L3 conformance did not run** (no cluster from the gate container; `vars.CLUSTER_AVAILABLE` is
unset in CI anyway), so the existing `keycloak-config-as-code` behavioural test did not re-execute
against this change. I reasoned about its assertion by reading it.
**No new conformance test was added.** Nothing in `conformance/` asserts the passkey policy or the
new flow shape, so a future edit can silently remove either and no gate stage will notice. That is
a real gap this PR leaves open; closing it would touch `conformance/**`, which is a sensitive path
needing non-author review.
**The quoted gate run predates this file's own gate-result paragraph.** It gated commit `207f5db`;
the gate numbers and the rebase note above were then written into this entry, so the pushed tree
differs from the gated one by this handoff's prose only — no manifest, no check, no generated file.
`decisions-log` is the only stage that reads this file, and it validates structure (frontmatter,
the three headings, non-stub bodies), which is unchanged. I did not re-run the full gate for a
prose edit; CI will gate the pushed commit.
**`gitea-settings` did not run locally** — it needs `SETTINGS_API_TOKEN`, which exists only in CI.
I did not re-measure branch protection, the runner, or `required_approvals` against the Gitea API
this session; the claims in `CLAUDE.md` §2 are taken on trust here and are explicitly flagged there
as needing re-measurement.
@@ -0,0 +1,99 @@
---
date: 2026-10-17
branch: fix/oauth2-proxy-oidc-startup-race
title: "oauth2-proxy dies on a cold start because OIDC discovery runs once, before Keycloak serves"
---
## What changed
Exposed by the 2026-10-17 whole-cluster shutdown for the UPS move. oauth2-proxy performs OIDC
discovery **once, at startup**, and `os.Exit(1)`s if it fails. On a cold boot Keycloak is not
serving yet, so the shared Gateway answers 503 and the proxy dies:
```
[provider.go:55] Performing OIDC Discovery...
[main.go:73] ERROR: Failed to initialise OAuth2 Proxy: error initialising provider: ...
failed to discover OIDC configuration: unexpected status "503": no healthy upstream
```
It then sits in **exponential CrashLoopBackOff long after Keycloak is healthy** — one of the two
replicas was still down minutes later and only a manual `kubectl delete pod` cleared it. There is no
retry flag; the process does not survive a cold start. A readinessProbe cannot help (the container
is already dead), and CrashLoopBackOff backoff is not tunable per-pod.
`platform/oauth2-proxy/helmrelease.yaml` gains an `extraInitContainers` gate (`wait-for-idp`) that
polls Keycloak's discovery doc until it answers, then lets the proxy start. A pod in `Init` does not
accrue CrashLoopBackOff backoff and retries promptly, which is the point.
**Bounded, and fails open.** After ~5 minutes it gives up and starts the proxy anyway, so the worst
case is exactly today's behaviour and never something new. An unbounded wait would trade a CrashLoop
for a pod wedged in `Init` forever, which is not an improvement.
## Why this shape and not the alternatives
* **`extraInitContainers` is the chart's own documented hook for precisely this.** Its commented
example in `values.yaml` is literally `- name: wait-for-idp`. The key was **confirmed against the
pinned chart** (`helm show values oauth2-proxy/oauth2-proxy --version 10.7.1` → `extraInitContainers: []`
at line 428), not assumed — a wrong Helm values key is silently ignored, which is the
"reviewed, merged, apparently done, still broken" shape this repo keeps getting bitten by.
* **No new base image.** The chart already runs an `alpine` init container for its built-in
`initContainers.waitForRedis` gate, so alpine is a base this chart uses regardless. Pinned to
`3.22` (verified to exist upstream) rather than the chart's own `latest`.
* **Flux `postRenderers` rejected:** it would work independently of the chart schema, but nothing in
this tree uses postRenderers, so it would introduce a mechanism with no precedent for a problem
the chart already has a hook for.
* **`--skip-oidc-discovery` rejected:** it removes the startup fetch entirely, which is arguably
more elegant, but it means hardcoding four Keycloak endpoints and I could not verify offline that
oauth2-proxy then fetches JWKS lazily rather than at startup. oauth2-proxy gates SSO for PiHole,
the \*arr apps, qBittorrent, Homepage, Prometheus, Alertmanager and Hubble — a wrong guess locks
the operator out of all of them, so the reversible, additive option wins.
The `$$`-free convention matters here: shell variables are written bare (`$i`, `$url`, `$(( ))`)
with **no braced form anywhere**, because `platform` declares `postBuild.substituteFrom cluster-vars`
and envsubst consumes braced expansions — a braced shell variable renders to the empty string and
silently breaks the loop. `${BASE_DOMAIN}` is braced on purpose. Same hazard and same convention as
the gitea and nextcloud OIDC bootstrap hooks, and `ci: flux-postbuild-substitution` enforces it.
## What I verified
* **The failure is measured, not theorised.** The log above is from the live pod
(`oauth2-proxy-5d6c74876b-bzb2p`, `lastState.terminated: {reason: Error, exitCode: 1}`), captured
with `--previous` after the cold boot. The surviving replica's log shows the same startup
succeeding once Keycloak was up, which is what identifies this as a race rather than a config
fault.
* **Deleting the pod is a sufficient workaround** — done on prod 2026-10-17, the replacement came up
clean and both replicas have been healthy since.
* **The chart key is real**, at the pinned version range: `helm search repo` resolves
`>=10.0.0 <11.0.0` to chart `10.7.1` (app `7.15.5`), whose values carry `extraInitContainers: []`,
`extraContainers: []` and the built-in `initContainers.waitForRedis` (which uses `alpine`).
* **`docker.io/library/alpine:3.22` exists** — confirmed against the registry tag list rather than
assumed from memory.
* The edited HelmRelease parses as YAML.
## What I did NOT verify
* **UNAPPLIED. The init container has never run.** I did not reconcile the HelmRelease, so I have not
seen `wait-for-idp` execute, exit 0, or gate the proxy. Applying it rolls both oauth2-proxy
replicas, which is a mutating action (CLAUDE.md §5) — and it rolls the component that gates SSO for
seven apps, so **do it when you can watch it**, not unattended.
* **I did not re-create the cold-start race to prove the fix.** That needs Keycloak down while
oauth2-proxy starts; the honest test is the next whole-cluster boot. Until then this is reasoned
from the measured failure, not demonstrated against it.
* **busybox `wget`'s TLS behaviour here is assumed, not tested.** The claim is that alpine's
`ca-certificates-bundle` lets it validate the Gateway's LE-prod certificate, so a genuine TLS
failure exits non-zero rather than passing falsely. If that is wrong in either direction the gate
degrades safely — a never-succeeding probe just burns the 5-minute budget and then starts the proxy
anyway — but the fast path would be silently dead and this would be doing nothing. **Check the
init container's log on first apply**: it should print "Keycloak discovery reachable" within
seconds on a warm cluster, not the give-up message.
* **Whether a pod can reach the Gateway hostname at all from this namespace is inherited, not
re-proven.** The main container does exactly this fetch today and succeeds, so the path is known
good — but note the standing trap that an arbitrary pod gets 403 from every Gateway hostname
(`decisions/2026-10-04-plex-advertise-plexdirect.md`); oauth2-proxy is exempt only because
Keycloak's ingress policy admits it. An init container in the same pod inherits that identity, so
this should hold — unverified.
* **60 attempts x 5s is not tuned.** It is "comfortably longer than Keycloak's observed cold start",
not a measured bound.
* **No runtime conformance.** `vars.CLUSTER_AVAILABLE` is unset, so CI proves the L0/L1 offline
subset only.
* I did not re-measure branch protection or runner state (CLAUDE.md §2b).
+108
View File
@@ -0,0 +1,108 @@
---
date: 2026-10-18
branch: fix/coredns-ha
title: "coredns ran at one replica, so any node drain was a cluster-wide DNS outage"
---
## What changed
**MEASURED on prod 2026-10-18: `kube-system/coredns` had `replicas: 1`.** In-cluster DNS was a
single pod on a single node, so draining or rebooting that node was a **cluster-wide in-cluster DNS
outage** until the pod rescheduled and became ready — every Service lookup, every CNPG replica
finding its primary, every operator addressing the API by name. It was invisible because `1/1
Ready` looks perfectly healthy.
It also became urgent rather than latent: the scheduled reboot automation on
`feat/automated-upgrades` drains and reboots one node at a time, unattended, overnight — turning a
single point of failure into a recurring one.
New `platform/coredns/hpa.yaml`: a `HorizontalPodAutoscaler` on the coredns Deployment with
`minReplicas: 2`, `maxReplicas: 3`, registered in the existing `platform/coredns/kustomization.yaml`
alongside the split-horizon ConfigMap already there.
**Why an HPA and not `replicas: 2` — this is the whole decision.** k3s owns the coredns Deployment
and we cannot durably edit it: it is applied by k3s's own deploy controller from a bundled manifest
(`AddOn/coredns`, source `/data/k3s/server/manifests/coredns.yaml`, `managedFields` managers
`deploy@k3s-prod-1` and `k3s`, plus an `objectset.rio.cattle.io/hash` label). k3s re-stages its
bundled manifests on startup, so a `replicas: 2` written there — or a `kubectl scale` — is reverted
on the next k3s restart or upgrade. Two alternatives were weighed and rejected:
* **`coredns.yaml.skip` + our own templated copy** (the pattern `roles/kube_vip` already uses for a
file in `server/manifests`). Deterministic and never flaps, but it takes ownership of coredns away
from k3s permanently — k3s upgrades would stop updating it and the version would need refreshing
by hand forever. Too high a price for a replica count.
* **A Flux-managed patch of the Deployment.** Rejected outright: Flux and k3s's deploy controller
would both own one object and fight continuously — the exact shape of the `default-deny`
NetworkPolicy drift loop this cluster already suffered (~2500 events/10min).
An HPA avoids both: a separate object k3s does not own, driving the `/scale` subresource rather than
the Deployment spec, so there is no shared-ownership fight. If k3s re-stages `replicas: 1`, the HPA
sees it below `minReplicas` and scales back within one reconcile.
It is a **floor-holder, not an autoscaler**: the CPU metric exists only because an `autoscaling/v2`
HPA needs one to be valid. `scaleDown.stabilizationWindowSeconds: 600` because DNS is the worst
thing in the cluster to flap; `scaleUp` is immediate, since that is the path that restores redundancy
after a k3s restart.
**Immediate action taken outside this PR:** `kubectl -n kube-system scale deploy coredns
--replicas=2` was run at the operator's explicit request, so the cluster has two replicas **now**
rather than after merge. That hand scale is what this PR makes durable.
## What I verified
* **The defect:** `kubectl -n kube-system get deploy coredns` → `replicas=1 available=1`.
* **k3s ownership:** the `AddOn/coredns` object exists with source
`/data/k3s/server/manifests/coredns.yaml`; the Deployment has no `ownerReferences` but carries
`objectset.rio.cattle.io/hash` and `managedFields` managers `deploy@k3s-prod-1` / `k3s`. So it is
k3s-managed, not Flux-managed — independently corroborated by another agent, which confirmed
`platform/coredns/` contains **only** the `coredns-custom` ConfigMap and does not touch the
Deployment or its replica count.
* **The hand scale works and holds:** coredns went to `2/2 Running` on two different nodes, and
in-cluster DNS kept answering throughout (`nslookup kubernetes.default.svc.cluster.local
10.43.0.10` → `10.43.0.1`). Still `spec.replicas=2 ready=2` after ~2 minutes, with the AddOn
checksum **unchanged** — so k3s's deploy controller does not revert on a drift timer; it
re-applies on manifest change and on restart.
* **The HPA's preconditions hold:** coredns ships `requests: {cpu: 100m, memory: 70Mi}` (so a
Resource/Utilization metric is meaningful), and metrics-server is installed as a k3s addon and
verified serving — `kubectl top pod -l k8s-app=kube-dns` returns **5m and 4m** against that 100m
request, i.e. ~5% utilisation, confirming the 80% target will never be approached and the HPA will
sit at `minReplicas`.
* **The kustomization edit is additive:** `git diff --stat` is `1 file changed, 4 insertions(+)`,
and `- coredns` was already registered in `platform/kustomization.yaml`, so no change was needed
there.
* All three touched/added YAML files parse.
## What I did NOT verify
* **The HPA has never been applied.** I did not reconcile it, so I have **not** observed it create,
reach `ScalingActive=True`, resolve its metric against real coredns data, or hold `minReplicas`.
Applying is an operator action (CLAUDE.md §5). The failure mode to watch for is
`ScalingActive=False` with `FailedGetResourceMetric` — the HPA would then be present and inert,
which looks identical to working because the hand scale already left 2 replicas in place. **Check
`kubectl -n kube-system describe hpa coredns` after merge**, not just the replica count.
* **The central claim that k3s reverts `replicas` on restart is REASONED, NOT OBSERVED.** It rests
on k3s re-staging bundled manifests at startup plus the measured ownership evidence above. I did
**not** restart k3s to watch the revert happen — doing so is a rolling control-plane restart, an
operator action. If k3s in fact preserves a modified replica count, this HPA is unnecessary
(though harmless).
* **I did not confirm the HPA wins the race against k3s's deploy controller after a restart.** Both
write the scale; the expectation is the HPA re-asserts within a reconcile, leaving a brief window
at 1 replica. Neither the window's length nor the outcome has been measured.
* **I nearly shipped a destructive change.** My first write of
`platform/coredns/kustomization.yaml` replaced the file wholesale, listing only `hpa.yaml` — which
would have pruned the existing `coredns-custom` ConfigMap and **broken in-cluster split-horizon
DNS (R-DNS-01/03)**. It was caught by a guard assertion before commit and restored from `HEAD`, and
the diff is now additive. Recorded because the near-miss is the useful part: `platform/coredns/`
already existed and I assumed it did not. **No conformance check would obviously have caught the
removal** — it is valid YAML and a legitimate-looking prune.
* **Whether 2 is enough.** Three nodes, and coredns' anti-affinity only *prefers* spreading, so both
replicas could in principle land on one node and a single drain would still take DNS down. I did
not add a `topologySpreadConstraint` or a PodDisruptionBudget — both arguably belong here and
neither is in this change.
* **No alert fires if coredns drops to 1 replica**, so a future silent regression (k3s upgrade
changing the manifest, the HPA going inert) would not be reported. That gap is not closed here.
* **No conformance test asserts this**, so a future edit could remove the HPA with no gate stage
noticing.
* **No runtime conformance.** `vars.CLUSTER_AVAILABLE` is unset, so CI proves the L0/L1 offline
subset only.
* I did not re-measure branch protection or runner state (CLAUDE.md §2b).
@@ -0,0 +1,76 @@
---
date: 2026-10-18
branch: fix/ha-check-catastrophic-regex
title: "One regex made the merge gate take 28 minutes instead of 2"
---
## What changed
The merge gate started taking **~28 minutes** instead of its usual **<2 minutes**, on every change
touching `infra/**`. One regex was responsible for essentially all of it.
`conformance/tests/l0-static/ha-control-plane-as-code/check.sh` contained:
```python
join_when = re.search(r"--server https://.*?\n(?:.*\n){0,10}?\s*when:\s*k3s_server_mode\s*==\s*'secondary'",
K3S_TEXT, re.S)
```
With `re.S`, every `.` also matches newlines, so `.*?` and the nested `(?:.*\n){0,10}?` can each
consume the entire document. That is **nested unbounded repetition** — ten levels of a quantifier
that can each swallow everything — and a failed or late match backtracks exponentially.
Replaced `.` with `[^\n]*` and dropped `re.S`, so the `{0,10}` is a genuine ten-line window with
nothing to backtrack into. Same intent, same verdict, no DOTALL.
**Why it surfaced now, and it was mine.** `K3S_TEXT` is every `*.yml` in `roles/k3s_server`
concatenated. The regex was latent for as long as it existed; **PR #71 added ~100 lines to that role
(the kubelet graceful-shutdown config), which grew the input past the point where exponential
backtracking stopped being survivable.** Nothing about the check changed — my change grew its input.
**Why only `infra/**` changes were slow.** `ci/touched-requirements.sh:268` maps `infra/*` to
`R-ENV-01`, and the resulting L0 run is `--include-scope whole-repo --requirements R-ENV-01`, which
pulls in this whole-repo check. Doc-only and `platform/**` changes never selected it, which is why
#69 (1m55s) and #72 (1m53s) stayed fast while #71 (27m44s), the #73 merge (27m46s) and #75 all ran
~28 minutes.
## What I verified
* **The hot spot, by measurement rather than reading.** `docker top` on the live CI job container for
run #299 showed `python3 -` with **19:54 of CPU time** under
`ha-control-plane-as-code/check.sh`, inside
`conformance/run.sh --layer l0 --include-scope whole-repo --requirements R-ENV-01`.
* **Reproduced locally**: the check did not finish within a 100-second budget on an unmodified
checkout.
* **Localised to the exact line** by extracting the inline Python and running it under
`faulthandler.dump_traceback_later(25)`, which named `re/__init__.py:177 in search` called from
the `join_when` line — not inferred from reading the patterns.
* **The pattern is unique in the repo**: `grep -rlnE "\{0,[0-9]+\}\?" conformance/tests/l0-static/*/check.sh`
returns only this file, so there is no sibling with the same hazard.
* **The fix is fast AND verdict-preserving**, tested against the real `K3S_TEXT` (22,179 chars, 403
lines): the new regex matches (`YES`) in **0.2 ms**. Sanity-checked that the thing it looks for
genuinely exists — one `--server https://` and three `k3s_server_mode == 'secondary'` occurrences.
* **The whole check now runs in 0.199s, rc 0, 115 assertions**, with the same success message as
before.
## What I did NOT verify
* **I did not re-time the full gate in CI after the fix.** The expectation is that `infra/**` changes
return to the ~2-minute range, but that is arithmetic from the 19m54s figure, not a measured
post-fix run. The PR's own CI run is the first real datapoint — read it.
* **I did not audit the other 23 L0 checks for different performance pathologies.** This one was
found because it was actively burning CPU in a live job; a check that is merely slow (not
exponential) would not have stood out, and `ci/gate.sh` has **no per-stage timing** at all
(`grep -nE "SECONDS|date \+|elapsed"` finds nothing), so there is no data on where the remaining
time goes.
* **Nothing prevents this class of bug returning.** No check asserts gate stage runtime, and no lint
forbids nested quantifiers under `re.S`. A timing budget per stage, or a `re` lint, would close it;
neither is written here.
* **I did not verify my claim about *why* only `infra/**` was affected beyond the path mapping and
the observed durations.** The correlation is strong (5 runs, two clear clusters) and the live
process list confirms the `--requirements R-ENV-01` scope, but I did not read
`conformance/run.sh`'s scope-selection logic end to end.
* The regex rewrite assumes the `when:` clause is indented with spaces or tabs only (`[ \t]*`). A
file using some other whitespace before `when:` would now fail to match where the old DOTALL
version would have succeeded. Unlikely in YAML, and the current input matches, but it is a
narrowing.
@@ -0,0 +1,334 @@
---
date: 2026-10-18
branch: feat/keycloak-passkey-reconciler
title: "Make the passkey realm config converge via GitOps — policy, enrolment action and the browser flow, the flow blue/green so the bound login path is never mutated"
---
## What changed
**Why this is a new branch and not an update to PR #72.** The brief for this work said to extend
PR #72 (`feat/keycloak-passkeys`) in place and not open a new PR. That premise was already stale
when I started: **PR #72 merged at 2026-10-18T05:44:04Z** (Gitea API: `state: closed`,
`merged: true`, `merge_commit_sha: 4d489f2`), and `git log origin/main` carries
`4d489f2 Merge pull request '…' (#72)`. A merged PR cannot be updated, and CLAUDE.md §1 leaves
exactly one path to `main`. So this is a fresh branch from `origin/main` in its own worktree, and a
new PR. For the same reason this is a **new** `decisions/` entry rather than an edit to
`decisions/2026-10-17-keycloak-passkeys.md`, which is now merged history describing a different unit
of work; it is the entry to read first for the passkey *design* decisions, which are not repeated
here.
**The problem.** PR #72 declared the WebAuthn passwordless policy and a restructured `browser-mfa`
flow in `platform/keycloak/keycloak-realm-import.yaml`. That declaration **could not take effect**.
A `KeycloakRealmImport` is a one-shot; prod's reads `Done=True / Started=False / HasErrors=False`,
so the operator will never re-run it and every realm-level field or flow declared after the first
import is inert — in git, applied by Flux, reported Ready, reaching the realm never. Merging it
changed nothing about how anyone logs in, and nothing anywhere said so. Same failure class as the
2026-09-06 client-secret incident, third field over.
**What now makes it converge.** A **sibling** reconciler, modelled on
`platform/keycloak/client-secret-reconciler.yaml`:
- `platform/keycloak/passkey-reconciler.yaml` — ConfigMap (Python, stdlib only, **zero dollar
signs**) + CronJob on `*/15 * * * *`, `automountServiceAccountToken: false`, admin credential by
`secretKeyRef` only. Three passes, **all of which converge**:
1. **WebAuthn passwordless policy.** Strict read-modify-write of `GET`/`PUT /admin/realms/homelab`,
changing only the `webAuthnPolicyPasswordless*` keys that differ, readback-verified.
2. **`webauthn-register-passwordless` required action.** Strict read-modify-write of one
**literally-named** alias; converges `enabled: true` / `defaultAction: false` only.
3. **The browser authentication flow — BLUE/GREEN.** Build the declared tree under a new, unused
alias; verify it by readback; flip `browserFlow` in **one atomic PUT**.
- `ci/render-keycloak-passkey-policy.py` + the **generated**
`platform/keycloak/passkey-desired-state.yaml` — the desired state, rendered from the realm
import, `--check`ed by the merge gate.
- `conformance/tests/l0-static/keycloak-passkey-reconciler/` — `check.sh`, `chainsaw-test.yaml`
(`scope: whole-repo`), `mutations.py`.
- `platform-config/kustomization.yaml` — both new resources, in the **same** Kustomization as the
realm import.
- `platform/keycloak/README.md` — the layout table, the section heading, and the "does NOT reach the
live realm" section rewritten: all three declared things now converge, with the blue/green
mechanics, the rollback command and the `--no-bind` fallback written out.
### The flow design was reconsidered, and the first version of it was wrong
**This is worth recording because the superseded reasoning was not silly, it was just wrongly
scoped.** The first design of pass 3 was **audit-only**: compare the live browser flow against git,
report divergence loudly, and never write it — leaving the restructure as a one-time admin-console
action. The reasoning was that converging a five-flow / ten-execution tree needs create-subflow,
create-execution, set-requirement and bind-config as *separate* untransacted admin-API calls, so a
run dying between them leaves a **half-built flow bound as the login path** for every SSO-gated app
*and* kubectl — and this repo has had a total SSO outage from a realm change (2026-09-06), with the
conditional-OTP sub-flow (which the declared structure moves one level deeper) once 403ing every
platform-admin.
**That risk analysis was sound but it assumed the wrong shape.** It is true only if you mutate the
*bound* flow. The operator's instruction was *"if this can be done through GitOps, it should"*, and
audit-only did not meet it — a manual admin-console step is exactly what the one-shot import already
forces. So:
- All the multi-call construction happens on a flow **nothing is using** (the declared alias plus a
hash of the desired shape, applied to *every* alias in the tree — reusing `browser-mfa-forms`
would mean writing *into* the bound tree). A failure at any point leaves an orphaned, unbound flow
and **zero user-visible effect**. The untransacted-calls problem dissolves.
- The built flow is **read back and verified** — nesting levels, ordering, authenticators,
requirements, and the conditional-OTP config *contents* — **before** anything is bound. The
regression the operator feared is now caught *before* it can bite rather than after.
- The flip is **one atomic PUT** of the realm setting `browserFlow`.
- **Rollback is one write.** The previous alias is printed in the run log, and there is **no
`DELETE` anywhere in the allow-list**, so the old flow survives as a working rollback target.
**The new safety property, enforced structurally rather than by intention.** Blue/green needs
flow-create and execution-add endpoints, which widens the allow-list — and the allow-list alone
cannot express "but not the flow that is bound", because its write entries are alias-parameterised.
So a second guard sits at the same choke point in `_http()`: the live `browserFlow` alias and its
**entire subtree** of sub-flow aliases and execution ids are read first, and every write is screened
against those sets before a socket opens. Protecting the whole subtree matters — adding an execution
to `browser-mfa-forms` changes live login behaviour just as surely as touching `browser-mfa`. It is
**fail-closed**: the sets start each run as "not determined", and while they are, *every* flow write
is refused; if the bound flow's executions cannot be read they stay undetermined and the flow pass
writes nothing.
**Idempotence became load-bearing rather than merely nice.** A rebuild-and-reflip every 15 minutes
would churn the login path on a schedule, so the bound flow is compared *structurally* and a match
produces **zero writes and no new flow**. Sub-flow and config *aliases* are deliberately not
compared: a flow this program built carries a hash suffix, so comparing labels would make it
permanently unrecognisable as converged. A crashed run's completed-but-unbound flow is **reused**; a
half-built one is left alone and the next candidate alias is used, with the candidate count
**bounded** so a persistently failing build fails loudly instead of creating unbounded sprawl.
**Where the rollback target is recorded, and why not as an annotation.** The brief suggested
recording the previous `browserFlow` alias as an annotation on the CronJob or in a ConfigMap. The
pod **cannot**: it runs with `automountServiceAccountToken: false` and has no Kubernetes API access
at all, which is the same property that made the mounted-generated-ConfigMap design preferable to
reading the CR (and is why this change adds no `**/rbac.yaml`). Giving it write access to its own
annotations would trade a narrow, gate-verified read for a Kubernetes API writer, which is a worse
bargain than the one it would buy.
So the record is in two places that cost nothing: the **run log** prints
`ROLLBACK is one write: set browserFlow back to <alias>. The old flow was NOT deleted.`, and — more
durably — **the realm itself**, because nothing is ever deleted. Every superseded flow is still
listed under `Authentication -> Flows`, so the rollback target is discoverable from the admin console
even if every Job log has rotated away. The README carries the rollback procedure.
**I achieved full convergence including the bind.** `--no-bind` exists as the deliberate fallback
(build and verify, leave the flip as a one-write human act) but it is not the default and was not
needed.
**No `**/rbac.yaml` was touched.** The brief floated having the reconciler read the
`KeycloakRealmImport` CR from the Kubernetes API, which would need a Role, a RoleBinding and a
ServiceAccount token. I rejected that for the narrower, already-proven pattern: a desired state
**generated** from the import and **mounted**, so the pod keeps `automountServiceAccountToken:
false` and no Kubernetes API access at all. Skew is prevented by the gate running the renderer with
`--check`, not by a second declaration being trusted.
**Sensitive paths touched** — checked against `infra/gitea/approval-policy.json` rather than from
memory, which caught one I had initially missed. **Three**:
| Path | Why it is in the policy | What I changed |
|---|---|---|
| `ci/**` | the pipeline itself | added `ci/render-keycloak-passkey-policy.py` |
| `conformance/**` | changing the tests changes what green *means* | added the L0 test directory |
| `platform-config/kustomization.yaml` | Flux wiring / which manifests are actually applied | added the two new resources |
**Not** touched: `**/rbac.yaml`, `clusters/**`, `platform/kyverno/**`, `.gitea/**`, `bootstrap/**`,
`infra/gitea/**`, `.sops.yaml`, any `*.sops.yaml`, `CLAUDE.md`.
So this PR **requires an approving review from someone who is not its author**, and
`ci/approval-policy.sh` is fail-closed, so it will block until that exists. I did **not** post
`/approve-override` — CLAUDE.md §1 names doing that on your own agent PR as exactly the
self-approval the stage exists to prevent. The operator needs to either review it or post the
override.
## What I verified
**Measured against the live cluster** (read-only `kubectl --context k3s-prod`):
- `keycloakrealmimport homelab`: `Done=True Started=False HasErrors=False` — the import is a
completed one-shot. **This is the premise of the whole change and it is measured, not assumed.**
- Keycloak image actually running: `quay.io/keycloak/keycloak:26.0.6`.
- `kustomization/platform-config` `.status.lastAppliedRevision` ==
`gitrepository/flux-system` artifact revision == `main@sha1:83d3568…`, which contains the PR #72
merge. So the inert declaration is genuinely applied and genuinely inert.
**`PUT /admin/realms/{realm}` does not touch users, groups, clients or roles in 26.0.6** —
established from source at tag `26.0.6`, not from documentation or memory:
- `RealmAdminResource.updateRealm` is the only handler. Its javadoc: *"Any user, roles or client
information in the representation will be ignored. This will only update top-level attributes of
the realm."*
- It delegates to `RepresentationToModel.updateRealm` →
`DefaultExportImportManager.updateRealm` (`model/storage-private/.../datastore/`), **lines
725–894**. I brace-matched that body and enumerated every `rep.getX()` call in it: it contains
**no** `getUsers()`, `getClients()`, `getGroups()`, `getRoles()`, `getRequiredActions()`,
`getAuthenticationFlows()` or `getAuthenticatorConfig()`. Those objects are **unreachable** from
the endpoint, not merely ignored by convention.
- Two findings that changed the design, both from the same read:
- `updateRealm` **does** read `rep.getBrowserFlow()`, so the endpoint can rebind the realm's login
path. The write therefore carries `browserFlow` straight back from the GET and a hard assertion
refuses the PUT if it would differ.
- The passwordless policy is applied **all-or-nothing and only when `RpEntityName` is non-empty**
(line 842), and `getWebAuthnPolicyPasswordless(rep)` substitutes a **Keycloak default** for every
null field (line 1253ff). A partial PUT would therefore silently reset every key it omitted, and
one missing `RpEntityName` would drop the whole policy while returning 204. This is why the write
is a strict read-modify-write of the full live representation.
- `AuthenticationManagementResource.updateRequiredAction` (line 1205) is **per-alias** and likewise
**replaces** the provider from the representation (name, alias, priority, enabled, defaultAction,
config), and 404s when the alias is unregistered. Hence read-modify-write there too.
- `DefaultRequiredActions` registers `webauthn-register-passwordless` with `enabled=true`,
`defaultAction=false`, `priority=80` — confirming the realm import's claim that declaring it would
restate a default while deleting ten siblings.
- **The realm GET really does return what the read-modify-write needs.** This is load-bearing: if
the GET omitted the passwordless keys, the PUT body would be missing them and 26.0.6 would reset
them to defaults. `ModelToRepresentation.toRepresentation` (lines 471–482) sets **all ten**
`webAuthnPolicyPasswordless*` fields plus `ExtraOrigins`, and line 496 sets `browserFlow`. I
checked for an `internal`/`export` guard around that block — there is none in lines 380–500, so
those fields are emitted unconditionally, not only on the export path.
**The five flow-construction endpoints, read from 26.0.6 source before being used:**
- `POST /authentication/flows` — `AuthenticationManagementResource.createFlow`, rejects a duplicate
alias. Carries **no alias in its path** (the alias is in the body), which is why it needed its own
body-based screen; without that it escaped the protected-subtree guard entirely. My selftest
caught that, not my reading.
- `POST /flows/{alias}/executions/flow` — `addExecutionFlow`, body `{alias, type, description}`.
Creates the sub-flow **at requirement DISABLED**, and refuses if the parent `isBuiltIn()`.
- `POST /flows/{alias}/executions/execution` — `addExecutionToFlow`, body `{provider}`. Also
DISABLED unless the factory has exactly one requirement choice. Both assign `getNextPriority()`,
so **insertion order is the resulting order** — which is why the builder inserts depth-first in
declared order and then verifies by readback.
- `PUT /flows/{alias}/executions` — `updateExecutions`. **A trap I would have walked into:** it
compares `rep.getPriority()` against the stored priority, and a JSON body omitting `priority`
deserialises it as the int **0** — which would silently **reshuffle the whole execution order**
while only a requirement change was intended. Every requirement write therefore carries the
execution's current priority back. There is a mutation for it and a selftest assertion on the
resulting order.
- `POST /executions/{id}/config` — `newExecutionConfig`, creates an authenticator config and binds
it. Config aliases are suffixed like flow aliases, because 26.0.6 keeps them unique per realm and
the old flow already uses the declared alias.
**Offline proofs, all green:**
- The reconciler's `--selftest`, **extracted from the shipped ConfigMap** and run: **216 assertions
pass**. Its stub Keycloak models the 26.0.6 behaviours that bite — the RpEntityName gate, the
all-or-nothing policy rebuild, the required-action replace, the `updateExecutions` priority trap,
and flow construction where everything is created DISABLED — so these are tested against the real
semantics rather than a forgiving fake.
- **A build killed at four different points (after 1, 3, 6 and 9 construction writes) never binds
and never touches the live flow.** Each case asserts the realm is still bound to the old alias,
that no write targeted the bound subtree, and that every live flow survives. This is the assertion
that makes blue/green a property rather than a claim.
- **Verify-before-bind is exercised, not assumed.** Two stub sabotages — a server that accepts the
requirement writes and applies the wrong value, and one that writes the conditional-OTP role under
`condition.evaluated.user.role` — both end with the flow **built but NOT bound** and the old flow
still live.
- `mutations.py`: **all 30 injected regressions caught**, including the six that are the blue/green
safety argument itself (build into the bound flow; never call the screen; reset the protected sets
to empty; bind before verify; report a failed build as success; reuse an existing flow without
verifying it).
- Mutation testing again found real gaps in my own work, which I fixed rather than weakening the
mutations. Across the two designs: no readback coverage on the realm write, no coverage of an
undeclared policy key surviving, a mis-indented anchor, and — in this design — **no coverage at
all of the bound flow being unreadable**, which is the fail-closed path. It also showed me that
**two of my proposed mutations were not real regressions**: the module-level initial value of the
protected sets is dead code (`run()` resets them first), and removing the early return after a
build failure is covered by verify-before-bind anyway. I re-anchored both onto the properties that
*are* load-bearing rather than pretending the originals had been caught.
- The new L0 `check.sh`: rc 0, all assertions. It asserts the renderer `--check`; that the realm
import and the desired state are rendered by the **same** Flux Kustomization; that the renderer's
and reconciler's writable key tuples are identical (parsed out of both sources with `ast`); that
`defaultAction` is `false`; that the realm import declares **no** `requiredActions` block
(previously only a comment saying "DO NOT ADD ONE"); that the **sibling** reconciler's allow-list
was not widened; that **nothing is deletable** and the execution-/config-id-scoped write endpoints
stay off the list (they carry no flow alias, so they could not be screened); and — the
load-bearing one — that the **protected-subtree guard exists in the source, is wired into
`_http()`, resets to "undetermined" every run, screens the body-only create-flow endpoint, and
that the policy write still refuses to rebind `browserFlow`**.
- `ci/render-keycloak-passkey-policy.py --write` output round-trips: the generated JSON is accepted
by the reconciler's `declared()`, its 10 policy keys equal the reconciler's `POLICY_FIELDS`, and
it flattens to the exact 11-step tree the realm import declares, with
`conditional-otp-platform-admin` bound at level 4.
- `${BASE_DOMAIN}` is carried into the generated ConfigMap **verbatim**, and both files sit in
`platform-config`, so one substitution pass decides the RP ID.
- Zero dollar signs in the reconciler script (the Flux envsubst trap), verified on the committed
manifest.
**The conditional-OTP regression is detectable — and now also preventable.** The comparison is
key-by-key on the authenticator config contents, and because it runs **before** the bind, a flow
carrying the bug never becomes the live login path. `--selftest` covers it three ways: the historical
`condition.evaluated.user.role` key injected into a *built* flow (built, verified, **not bound**,
old flow still live); the same bug already live in the *bound* flow (reported, then **fixed** by
building and binding a correct flow); and the config disappearing entirely. `mutations.py` deletes
the comparison and the undeclared-key report and requires the selftest to notice both. The suite
also covers a requirement flipped from `ALTERNATIVE` to `REQUIRED`, the un-restructured legacy flow,
a correct-but-unbound flow, and a cyclic declaration.
**Gate:** see the gate section of the PR / the run quoted in my report — rc and per-stage results
are recorded there rather than paraphrased here.
## What I did NOT verify
- **The live realm's actual passkey state is entirely UNVERIFIED.** I never authenticated to the
Keycloak admin API. Doing so needs the `keycloak-admin-credentials` password, which CLAUDE.md §6
forbids decrypting or printing, so I did not read the realm's current
`webAuthnPolicyPasswordless*` values, its required-action list, or its `browser-mfa` executions. I
therefore **do not know** how much drift the first real run will report, nor that the live flow is
in the "legacy shape" my selftest models — only that the import never re-ran, which makes drift
the overwhelmingly likely state. The first run's log is the measurement, and nobody has seen one.
- **Nothing has ever run against a real Keycloak.** Every behavioural proof is against an
in-process stub I wrote, and a stub I wrote cannot falsify my own reading of the source. This
matters more for the blue/green flow builder than for anything else in the change, because it is
**five endpoints I have never exercised**. Specifically unproven in reality:
- That `POST /flows/{alias}/executions/flow` and `.../executions/execution` accept the bodies I
send and assign priorities in insertion order. If they do not, the build produces a tree that
fails verification — which is the safe failure (nothing is bound, login unaffected), but it
means **the flow would never converge** and the Job would fail every 15 minutes.
- That `PUT /admin/realms/homelab` accepts a full round-tripped representation. The analogous
*client* endpoint rejects one with `400 "Cannot parse the JSON"` (measured 2026-09-06), and the
sibling reconciler's whole minimal-PUT rule exists because of it. The source says the realm
endpoint differs; no measurement here confirms it. **If it does not, both the policy pass and
the atomic bind fail closed** — loudly, writing nothing.
- The exact JSON shapes compared: `AcceptableAaguids` as `[]` rather than absent or null,
`CreateTimeout` as a JSON int, `RequireResidentKey` as the literal string `"Yes"`. A shape I did
not anticipate would show up as **perpetual drift** — a write every 15 minutes that never
converges — rather than as an error.
- That `authenticationConfig` on an execution-info response is the config **id** (I read it from
the representation class, but never saw a live response).
- **I did not verify the alias-collision behaviour against a real realm.** The recovery logic
assumes `POST /flows` returns a non-2xx on a duplicate alias (the source checks
`getFlowByAlias != null` and raises `ErrorResponse.exists`), and that a config alias collision
likewise fails. If either silently succeeded, the recovery path would behave differently than
modelled.
- **Flow sprawl is bounded but real.** Every genuinely new desired shape creates a new flow and
**nothing is ever deleted** — by design, because the old flow is the rollback target. Over many
shape changes the realm accumulates unbound flows. There is no cleanup, automated or documented
beyond "an operator deletes them". I consider that the right trade (deletion is the one operation
that could destroy a rollback target) but it is a cost, not a non-issue.
- **No L2 behavioural test was added.** The reconciler has an `--audit` mode built for one and the
sibling has `tests/l2-behavioral/keycloak-client-secrets-match-git`, but I added no equivalent.
And `vars.CLUSTER_AVAILABLE` is unset, so L2/L3 would not run in CI anyway. **CI proves the
offline subset only; it proves nothing about the live realm.**
- **No alerting.** Unlike the first design there is no longer any failure that is "expected by
design", so a PrometheusRule on `kube_job_status_failed` would now be meaningful — and I did not
add one. A silently failing CronJob (image pull failure, rotated admin password, changed Secret
key) is visible only to someone who looks at Jobs. This is a real gap, not a resolved one.
- **That passkey login works.** No passkey has been enrolled and no browser has been pointed at
this. Nothing offline can prove a WebAuthn ceremony completes, that the `ALTERNATIVE` fork
degrades to the password form via `CREDENTIAL_SETUP_REQUIRED`, or that a platform-admin is still
asked for TOTP on the password branch. The README's four-step manual check remains the only thing
that would establish it, and it remains undone.
- **That the RP ID is right for the origin.** `${BASE_DOMAIN}` is a legal registrable-domain suffix
of `keycloak.${BASE_DOMAIN}` on paper, but a wrong RP ID fails **in the browser**, before Keycloak
is involved, with no server-side log line. The reconciler will happily converge the realm on a
wrong RP ID; it checks that git and the realm agree, never that git is correct.
- **The first real run will change how everyone logs in.** Once this merges and Flux applies it, the
next tick builds a flow and — if it verifies — **flips the realm's browser flow**. The UX change
is deliberate and documented (username screen, then password), but it is the first time it will
have happened, unattended, on a schedule. The rollback is one write and the old flow survives;
that is the mitigation, and it has not been rehearsed either.
- **CI's own result.** My gate run is local. `gitea-settings` cannot run locally, and
`ci/approval-policy.sh` reports green N/A offline while this branch touches three sensitive paths,
so **the PR is guaranteed to need a non-author approving review** and I have not seen CI report. I
did not and will not post `/approve-override` on my own PR.
- I re-measured branch protection this session (`protected: true`, `user_can_push: false`,
`enable_status_check: true`, context `gate / gate (pull_request)`, `required_approvals: 0`), but
the branches endpoint does **not** expose `block_admin_merge_override`, so that row of CLAUDE.md
§2 is **not re-confirmed** by me.
+82
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@@ -0,0 +1,82 @@
---
date: 2026-10-18
branch: fix/pihole-local-ttl
title: "The split-horizon answer was uncacheable while the wrong answer cached for 5 minutes"
---
## What changed
The operator reported DNS "flapping between the cluster ingress and the router (public IP)".
PiHole was not at fault — both replicas answer correctly and consistently. The bug is an
**asymmetry in cacheability** that we created.
Measured on prod 2026-10-18:
```
dig home.keithjackson.dev @192.168.2.23 (pihole) -> 192.168.2.20 TTL=0
dig home.keithjackson.dev @1.1.1.1 (public) -> wan.home.keithjackson.dev TTL=300
dig home.keithjackson.dev @192.168.2.1 (router) -> wan.... TTL=153 -> 148 -> 143
```
dnsmasq answers `address=` entries with **TTL 0** unless told otherwise. The SOHO router forwards
LAN queries to PiHole and **caches** the result — the decrementing TTL above is the proof it caches
rather than forwarding live. So:
* the **correct** answer is **uncacheable** (TTL 0): the router must re-query PiHole on *every*
lookup, which is maximum exposure to any momentary gap;
* the **wrong** answer is **cacheable for 300s**: the instant the router falls back to its upstream
(standard forwarder behaviour when the forward target does not answer) it latches the public WAN
address and serves it to **every LAN client** for five minutes.
So **one sub-second PiHole gap becomes five minutes of the whole house resolving to the WAN IP** —
then it expires, the router re-queries PiHole, gets TTL 0 again, and is immediately re-exposed.
That asymmetry, not the gap itself, is why this is visible as flapping rather than a blip.
Fix: `local-ttl=60` prepended to `FTLCONF_misc_dnsmasq_lines` in `catalog/pihole.yaml`, so the
private answer is cacheable and a short gap is invisible to clients. `apps/wave-0/pihole.yaml`
regenerated with the canonical render command.
## What I verified
* **PiHole is NOT the fault.** Both replicas, queried directly by pod IP, answer `192.168.2.20`;
the VIP returned it 6/6; this workstation 8/8. DHCP hands out only `192.168.2.23`.
* **The router caches rather than forwards live** — three successive queries returned TTL 153, 148,
143 (decrementing), which a pure forwarder could not do.
* **The TTL asymmetry**, as quoted above: 0 from PiHole, 300 from public DNS.
* **The router does answer DNS and returns the public chain** (`wan.home.keithjackson.dev` → the WAN
address), so a fallback always has a wrong answer available.
* **`local-ttl` is the right directive**: dnsmasq applies it to replies made from configuration,
`/etc/hosts` and DHCP leases, which covers all five `address=` names with one directive. It is a
standalone option, not a sub-field of `address=`, so prepending it to the `;`-separated
`FTLCONF_misc_dnsmasq_lines` list is syntactically correct.
* **The render is clean and scoped**: `catalog/render.py --all catalog -o apps --wave-layout
--no-image-automation` (the canonical command `ci/render-golden.sh` asserts against, and
deliberately **not** `--emit-waves`) changed exactly two files — `catalog/pihole.yaml` and
`apps/wave-0/pihole.yaml` — and the rendered diff is the single `local-ttl=60;` prefix.
## What I did NOT verify
* **UNAPPLIED.** Nothing has been reconciled, so I have not observed PiHole serving a non-zero TTL,
nor the router caching the private answer, nor the flap stopping. **Verify after merge with
`dig home.keithjackson.dev @192.168.2.23` (expect `TTL=60`, not 0) and then the same query at the
router (expect `192.168.2.20` with a decrementing TTL, not `wan.…`).**
* **I did not confirm that PiHole/FTL accepts `local-ttl` via `FTLCONF_misc_dnsmasq_lines`.** The
directive is valid dnsmasq and the field is a passthrough, but `catalog/pihole.yaml`'s own header
records that FTL has previously written a bogus line into `dnsmasq.conf` and reported "0 invalid"
— so a malformed passthrough fails *silently*. If the TTL is still 0 after merge, that is the
cause, not this reasoning. Check the pod's `/etc/pihole/dnsmasq.conf`.
* **60s is chosen, not derived.** Long enough for a pod restart and a lease re-election (both
seconds); it does **nothing** for an outage longer than the TTL, where the cache expires and the
public answer latches again. That is a real availability problem, not a caching one.
* **This does not remove the trigger.** `192.168.2.23` is served by **two** LoadBalancer Services
(`pihole-dns-tcp`, `pihole-dns-udp`) with **two independently-elected L2 announcement leases**, so
two nodes can ARP for the same address at once — they sat on different nodes earlier the same day
(tcp on prod-2, udp on prod-1). The same pattern applies to crafty (`.22`) and unifi (`.21`).
Merging each pair into one mixed-protocol Service would remove the class; the operator has parked
that decision, and it is deliberately **not** in this change.
* **Client-side bypasses are unexamined.** A device with its own resolver, or a browser with
DNS-over-HTTPS, bypasses PiHole entirely and always gets the public answer; this fix cannot help
there. Only this one workstation's resolver chain was inspected.
* **No alert fires if the split-horizon answer regresses to the public address.** Nothing probes
`home.keithjackson.dev` from a LAN vantage point and compares it against `${GATEWAY_VIP}`, so the
next recurrence would again be found by a human noticing. That gap is not closed here.
@@ -0,0 +1,78 @@
---
date: 2026-10-18
branch: fix/renovate-cron-window
title: "The Renovate cron fired outside Renovate's own schedule, so it would never have opened a PR"
---
## What changed
`.gitea/workflows/renovate.yaml` shipped (PR #73) with `cron: "15 3 * * *"`. **That schedule could
never have produced a single PR.**
Gitea Actions cron is **UTC**. `renovate.json` carries `"schedule": ["after 3am and before 6am"]`
with `"timezone": "America/New_York"`, and that inner schedule is **authoritative** — Renovate
re-checks it and declines to open PRs outside it. So:
```
cron 03:15 UTC -> 23:15 EDT, the PREVIOUS EVENING in New York
window -> 03:00-06:00 local
inside? -> NO (3h45m before the window opens)
```
The original comment claimed the cron was "slightly ahead of the repo window ... so a run is always
in flight when the window opens". It is 3h45m *behind*, on the previous day. Every nightly run would
have started, logged "not within schedule", opened **zero** PRs and exited **successfully** — a
green tick forever, indistinguishable from "nothing needed updating". That is the same
"failure-mode-is-a-green-tick" shape this repo keeps hitting, and it would have hidden the ~30
pending updates PR #73 was written to surface.
Changed to `cron: "15 8 * * *"`, chosen to survive DST rather than to be tidy. The window's UTC
position moves:
| | local window | in UTC |
|---|---|---|
| EDT (UTC-4, Mar–Nov) | 03:00–06:00 | 07:00–10:00 |
| EST (UTC-5, Nov–Mar) | 03:00–06:00 | 08:00–11:00 |
`08:15 UTC` is inside **both** (04:15 EDT / 03:15 EST), so no edit is needed at either switchover.
A cron cannot follow DST, so this is the only way to get it right once.
## What I verified
* **The defect, by arithmetic rather than assertion:** `datetime(2026,10,18,03,15, UTC)` converted to
`America/New_York` via `zoneinfo` is `2026-10-17 23:15 EDT`; `3 <= hour < 6` is **False**.
* **The fix, at both DST extremes:** `08:15 UTC` → `04:15 EDT` in July and `03:15 EST` in December,
both inside `03:00–06:00`. Computed, not reasoned.
* **The inner schedule really is authoritative and really is set:** `renovate.json` on `main` carries
`timezone = America/New_York` and `schedule = ['after 3am and before 6am']`.
* **`RENOVATE_TOKEN` now exists** as a repository Actions secret (listed by name via the Gitea API
alongside `SETTINGS_API_TOKEN`), so the workflow's fail-hard preflight will pass. It did not exist
when PR #73 was authored.
* The edited workflow parses as YAML.
## What I did NOT verify
* **Renovate has still never executed.** This fixes *when* it runs, not *whether it works*. No run
has happened, so nothing here proves it extracts dependencies, authenticates to Gitea, or opens a
usable PR.
* **`enabledManagers` may silently disable the custom managers — UNRESOLVED and the likelier
remaining bug.** `renovate.json` lists `enabledManagers: [..., 'regex', ...]` and defines
`customManagers` (correct modern key; `regexManagers` is absent, which is right). But modern
Renovate names the custom manager **`custom.regex`** in `enabledManagers`, not bare `regex`. If
the bare name is invalid or ignored, every inline `# renovate:` marker in the tree does nothing —
including the `external-snapshotter` `newTag` pin PR #73 flagged as probably inert. **I did not
change it**, because guessing at a config key that could fail validation and take the whole run
down is worse than leaving a question that one dry run answers definitively. The `dry_run: true`
dispatch log settles it: look for a per-manager dependency-extraction count, and for any config
validation warning naming `regex`.
* **Whether a dry run inside vs outside the window differs usefully.** Renovate honours its schedule
even in dry-run, so a manual dispatch outside 03:00–06:00 local will also log "not within
schedule". That makes the first dispatch's output less informative than it looks; to see what
Renovate *would* do, either dispatch inside the local window or override the schedule for that
run. Not tested either way.
* **No alert fires if the schedule stops firing.** PR #73 recorded this gap and it is still open: a
Renovate workflow that silently stops running (disabled Actions, expired token, deleted secret)
produces no signal at all. Closing it needs a check on last-successful-run age, which nothing
does.
* No conformance test asserts the cron falls inside `renovate.json`'s window, so this exact bug can
return. A static check comparing the two is feasible and is not written.
@@ -0,0 +1,78 @@
---
date: 2026-10-18
branch: fix/renovate-invalid-config
title: "renovate.json was invalid, so the first manual run errored out"
---
## What changed
The operator ran the Renovate workflow manually and it **failed**. The cause is not the workflow:
**`renovate.json` was never a valid Renovate config.**
It carried five pseudo-comment keys — `_comment`, `_kubernetes_comment`, `_unmanageable_comment`,
`_ignorePaths_comment`, `_docker_comment` — because JSON has no comments. Renovate **rejects unknown
top-level options**, so the entire config failed validation. Proven with the official validator
rather than inferred:
```
$ podman run --rm -v "$PWD/renovate.json:/tmp/renovate.json:ro,Z" \
ghcr.io/renovatebot/renovate renovate-config-validator /tmp/renovate.json
ERROR: Found errors in configuration
Invalid configuration option: _comment
Invalid configuration option: _docker_comment
Invalid configuration option: _ignorePaths_comment
Invalid configuration option: _kubernetes_comment
Invalid configuration option: _unmanageable_comment
```
This is the second independent reason Renovate had never worked, on top of PR #77's cron firing
outside `renovate.json`'s own schedule window. Either alone was sufficient to produce "nothing ever
happens"; #73 shipped both.
**Converted `renovate.json` → `renovate.json5`.** JSON5 permits real `//` comments, and Renovate
discovers `renovate.json5` natively — nothing in `.gitea/` or `ci/` pins the old filename (only
prose inside comments), and no `RENOVATE_CONFIG_FILE` is set. Every word of the original rationale
is preserved as comments positioned next to what it explains, which a flattened `description`
string would have lost.
A header on the new file records the failure, the validator command, and the instruction to run it
before committing — this class of bug is invisible to the repo's own gate.
## What I verified
* **The exact failure**, from the official validator, quoted above. Not read off a log, not inferred
from the workflow.
* **The fix validates**: the same validator against `renovate.json5` returns
`INFO: Config validated successfully against 1 file(s)`.
* **Nothing was dropped in the conversion**, checked programmatically against `git show
HEAD:renovate.json`: 18 non-comment keys before, 18 after, **no missing keys, no extra keys, and
no key whose value changed**. `docker: {enabled: true}` confirmed still present — the validator
prints a normalisation diff that mentions it, which is its own migration suggestion, not a
removal.
* **74 comment lines survive** in the new file, so the rationale is intact.
* **`RENOVATE_TOKEN` exists** as a repository Actions secret (listed by name via the Gitea API), so
the workflow's fail-hard preflight is satisfied.
* **A suspicion was DISPROVED:** `enabledManagers` containing bare `regex` was thought to need to be
`custom.regex`, which would have silently disabled every inline `# renovate:` marker. The
validator accepts `regex`, so that concern was unfounded and nothing here changes it.
* Nothing functionally references `renovate.json` by name — `grep -rn "renovate\.json" .gitea/ ci/
conformance/` returns only comment prose.
## What I did NOT verify
* **Renovate has still never completed a run.** This removes one of two blockers; PR #77 removes the
other. Neither is merged, so **no successful Renovate run has been observed** and I cannot say the
bot works — only that these two specific defects are fixed.
* **I did not re-run the workflow after the fix.** The honest test is a `workflow_dispatch` with
`dry_run: true` once both this and #77 are merged. Expect ~30 dependencies behind, rate-limited to
`prHourlyLimit: 2` / `prConcurrentLimit: 5`.
* **Whether the managers actually extract anything.** A valid config that matches no files is still
a no-op. The dry-run log's per-manager dependency counts are the only thing that proves the
`managerFilePatterns` are right, and I have not seen them.
* **Whether `renovate.json5` is honoured by the pinned Renovate version in the workflow.** JSON5
discovery is long-standing and the validator accepted the file, but the workflow's image tag was
not cross-checked against the version that added it.
* **Nothing in the gate catches an invalid Renovate config.** This bug would have recurred silently.
A one-line L0 check shelling out to `renovate-config-validator` would close it; it is not written
here, and `conformance/**` is a sensitive path.
* I did not re-measure branch protection or runner state (CLAUDE.md §2b).
+374
View File
@@ -0,0 +1,374 @@
---
date: 2026-10-29
branch: feat/image-pipeline
title: "Images are built, verified and published by CI on rootless BuildKit; Renovate carries the digests into git"
---
## What changed
Operator rule (2026-10-29): container image creation, hosting and lifecycle belong to CI/CD and
the codebase, never to a one-off workstation build/push. Before this branch the Home-Network org's
package list was **empty**, `platform/pm-agent/` pinned an all-zero digest (ImagePullBackOff), and
both `build-image.sh` scripts said "publishing is an operator action".
### The builder: rootless BuildKit — DECISION MADE (operator, on PR #81)
**The problem it answers, measured on this PR's first CI run (images run 325, failed in 6 s):** a
CI job on this runner gets **no Docker daemon at all**, for two reasons, both in the deployed
versions' source:
- act_runner v0.2.11 `internal/app/cmd/daemon.go` sets `container.docker_host` to `-` ("never
mount into jobs") whenever `DOCKER_HOST` is `tcp://`, which it is here (the DinD sidecar);
- gitea/act v0.261.2 `pkg/container/docker_run.go` `sanitizeConfig` drops **every** bind,
socket included, when `valid_volumes` is empty, which it is (the runner has no config file).
Giving jobs the DinD daemon would have made every branch push root on the node, because that
daemon is `privileged: true`.
**The decision:** no job may reach a privileged daemon, and images are built by a **rootless
BuildKit** daemon over mTLS. The runner (`apps/wave-1/gitea-actions.yaml`, DOCKER_HOST,
valid_volumes) is **untouched**.
- **`platform/buildkit/`** — a new hand-managed component in its own namespace `buildkit`. The
runner manifest is renderer-generated (`catalog/render.py` EXTRA_UNITS), and the builder has no
business sitting next to a privileged container. Flux reconciles it as the new Kustomization
`buildkit` (`clusters/base/buildkit.yaml`, `dependsOn: platform`).
- **Deployment:** `moby/buildkit:v0.34.1-rootless@sha256:f68752a5…0c4f89`, pinned by index
digest. The securityContext, every line measured (see *What I verified*):
- `privileged: false`;
- uid/gid 1000, `runAsNonRoot`;
- `capabilities: drop ALL, add SETUID, SETGID`;
- `allowPrivilegeEscalation: true`;
- `seccompProfile: Unconfined` and `appArmorProfile: Unconfined`;
- `readOnlyRootFilesystem: true`, with five emptyDirs.
Other settings:
- `--oci-worker-no-process-sandbox`;
- no ServiceAccount token;
- memory limit 4Gi, which covers build steps too;
- cache emptyDir with `sizeLimit: 6Gi`, and GC capped at 4 GB in `buildkitd.toml`
(ConfigMap).
- **mTLS via cert-manager** (`certificates.yaml`): a self-signed CA used only here, the server
cert `buildkitd-tls`, and the client cert `buildkit-client-ci`. buildkitd verifies every
client against that CA.
- **Service:** ClusterIP `buildkitd.buildkit.svc.cluster.local:1234`.
- **NetworkPolicies:**
- default-deny;
- ingress on 1234 **only from the act-runner pod** (`gitea-actions`,
`app.kubernetes.io/name=act-runner`);
- egress: DNS, world :443/:80 for downloads, and the `ingress` entity (the Gateway) for the
registry push.
- `versions.env`: the CI-side client, `buildx` v0.38.1 with the sha256 from its
`checksums.txt`, plus the address and certificate name CI dials.
- **How DinD job containers appear to Cilium (measured, read-only).**
`iptables -t nat -S POSTROUTING` in the dind container shows
`-A POSTROUTING -s 172.18.0.0/16 ! -o br-… -j MASQUERADE` (and the same for docker0). So a job's
connection leaves with the **act-runner pod's IP, and therefore that pod's Cilium identity**.
That makes "only the act-runner pod" expressible and correct, but it cannot tell one job from
another, or a job from act_runner itself. Per-job authentication is the client certificate.
- **Admission: no Kyverno exception needed.**
- Every ClusterPolicy actually applied (`platform-config/kustomization.yaml`; live:
`conformance-trigger-job-shape`, `label-cdi-worker-pods`, `pm-agent-job-shape`,
`require-auth-mode-label`, `require-default-deny-baseline`, `require-egress-class-label`,
`restrict-host-namespaces`, `secret-provenance`, `validate-default-deny-shape`) matches only
namespaces labelled `homelab.keithjackson.dev/app-namespace: "true"`, or only its own
namespace in the job-shape policies' case. `buildkit` carries no such label.
- There are no namespaced Kyverno Policies and no cluster-wide PSA default (both measured).
- The namespace is deliberately left without a PSA label, because PSS `baseline` forbids
`Unconfined` seccomp and AppArmor.
- `validate-default-deny-shape` does apply to the namespace's default-deny NetworkPolicy, and
its shape (both directions) satisfies it.
- **Unprivileged user namespaces on the nodes (measured, read-only, via Ansible `sysctl`).** On
all three Debian 13.7 nodes, kernel `7.1.8+deb13-amd64`:
- `kernel.unprivileged_userns_clone = 1`;
- `user.max_user_namespaces = 127206`;
- no `kernel.apparmor_restrict_unprivileged_userns` (an Ubuntu-only key);
- AppArmor enabled (`Y`).
So this is a satisfied prerequisite, not an open one.
- **The TLS conformance check needed a narrow, self-proving exception** (`conformance/**`, so this
changes what green means; flagged for the reviewer).
- The first gate run failed L0 `tls-lifecycle-automated` clause (5): "every Certificate's
issuer must be ACME". That is broader than the spec it serves:
- R-TLS-01 and docs/08 concern *externally reachable* services;
- ADR-0006 says "mTLS between workloads is a separate concern … not covered here";
- a public CA cannot issue for a `*.svc.cluster.local` name or a client-auth certificate.
- The new clause (5b) exempts a Certificate annotated
`homelab.keithjackson.dev/tls-scope: workload-mtls` **only if it proves it**:
- no Gateway listener serves its Secret;
- every DNS name and the commonName are a bare label or `*.svc[.cluster.local]`;
- it has no IP, URI or email SANs;
- its issuer is a namespaced `selfSigned`/`ca` Issuer in its own namespace;
- a `ca` issuer's Secret is produced by a likewise-exempt tracked Certificate.
- Exemptions are printed, and clause (9), the renewal arithmetic, still applies.
- **Negative-tested:** a public DNS name, and a Gateway serving `buildkitd-tls`, each fail the
check with a specific message.
- **`infra/gitea/buildkit-client-secret.sh`** (operator action): copies `ca.crt`, `tls.crt` and
`tls.key` from the Secret `buildkit/buildkit-client-ci` into the Actions secrets `BUILDKIT_CA`,
`BUILDKIT_CLIENT_CERT` and `BUILDKIT_CLIENT_KEY`. Before writing anything it checks that:
- the cert verifies against the CA;
- the cert is a client-auth cert;
- the key matches the cert.
It never prints a value. `--check` reports whether the stored copy is older than the current
certificate.
### Verification moved into the Containerfiles
`docker run` cannot exist on BuildKit, so each Containerfile now names its shipped stage after the
image (`toolbox`, `agent-runner`, `conformance-runner`) and ends in a **`verify` test stage**,
`FROM <image> AS verify`. That stage runs every previous assertion at build time, as the image's
non-root uid (65532 for agent-runner and conformance-runner), in `RUN --network=none`. It is never
pushed.
- **Every existing assertion is preserved**, and the toolbox gained one it never had: every tool
on PATH, and five tools report their pinned versions.
- `probe-validation.sh` is `COPY`ed into the verify stage only, so it never ships.
- **Bug fixed on the way:** in the old `docker run` block, `cmd | grep -q … && echo ok` and
`[ … ] && echo` could never fail the script under `set -e` + `pipefail`. The "entrypoints refuse
arguments", "not root", "no API key baked in" and "HOME writable" checks asserted nothing. They
are real assertions now.
- **What a build step cannot reproduce, and how it is approximated** (also written in each stage's
header):
- **uid:** exact.
- **`--network none`:** exact, and each stage *proves* it. Its first check fails if DNS or a
TCP connection works. A negative control without `--network=none` fails that check.
- **`--read-only` rootfs:** not reproducible, because a RUN step always has a writable layer.
It is approximated by permission:
- `touch /should-fail` must fail;
- a `find / -xdev -writable ! -type l` inventory, run as the uid, must lie entirely under
`/workspace`, `/tmp` or `/var/tmp`. `! -type l` was needed: Fedora's `/usr/tmp` symlink
to `/var/tmp` tripped it.
The real control remains the pods' `readOnlyRootFilesystem`, which the admission policies
enforce.
- **`--tmpfs /workspace`:** approximated by the image's own `/workspace`, owned by 65532, which
is exactly what the pod's emptyDir replaces.
The opt-in `--verify-clone` still `run`s the image, so it remains local-only.
- **`build-image.sh` (all three):**
- verify is `build --target verify` and the image is `build --target <image>`;
- a new `--print-build-args` prints the pins as `KEY=VALUE`, which is what CI consumes. The
arg list therefore exists once;
- the local podman path still works.
- The L0 check `alert-rules-unit-tested` now looks for `"PROMTOOL_VERSION=$PROMTOOL_VERSION"` in
the toolbox's build-arg list.
### The pipeline (`.gitea/workflows/images.yaml` + `scripts/images.sh`)
- **The builder.** The driver downloads the pinned `buildx` and refuses a checksum mismatch. It
writes the client cert from the `BUILDKIT_*` secrets to a 0600 temp dir that is removed on exit,
creates a `remote` builder, and runs `buildx inspect --bootstrap`.
- **It fails loudly, never skips.** It stops with a clear message if:
- the secrets are absent;
- buildkitd is unreachable. The message lists the causes in order: not deployed yet (Flux
applies it only after merge), stale certificate, NetworkPolicy.
- **Pull request:** `buildx bake <image>-verify` for changed images. Nothing is pushed and no
registry credential is referenced. The `BUILDKIT_*` builder secrets *are* given to PR jobs,
because they must build.
- agent-runner is built FROM the toolbox built **in the same run** through a bake `target:`
context. That toolbox exists in no registry, so the toolbox is built as its base even when
its own inputs did not change.
- **Push to main / dispatch on main:** for each image, the verify target first, and only then the
image itself with `push=true`. Tags are `sha-<12 hex>` (immutable) and `main` (moving).
- The digest is read back from the registry and compared with the client's metadata.
- agent-runner builds FROM the toolbox digest just pushed, or else from the pinned
`AGENT_BASE_IMAGE` (the zero placeholder bootstraps).
- `BUILDX_NO_DEFAULT_ATTESTATIONS=1` keeps one manifest per tag, which is what admission,
Renovate and the retention script assume.
- **Unchanged from the first iteration:** change detection, publish idempotence,
`REGISTRY_PUSH_TOKEN` and its preflight, the Renovate markers, and `registry-retention.sh`. The
DinD prune step is gone, because nothing is built in DinD now.
### Unchanged from the first iteration (still true)
- **Digest references** carry `# renovate-digest: image=<repo> tag=main` markers:
- `platform/pm-agent/deployment.yaml` and `configmap.yaml`;
- `infra/agent/versions.env` `AGENT_BASE_IMAGE`, now the published toolbox by digest, zero
until the first publish;
- `conformance/versions.env` `CONFORMANCE_RUNNER_IMAGE_DIGEST`, which went from `""` to zero.
The admission policies are untouched.
- **`renovate.json5`**:
- the `custom.regex` marker manager;
- `enabledManagers` `regex` → `custom.regex`;
- the `kubernetes` manager disabled for these three repos;
- `ignorePaths` narrowed so `conformance/versions.env` is visible.
`renovate.yaml` pins `renovate-version: 44.167.0` and adds a docker `RENOVATE_HOST_RULES` entry
using `RENOVATE_TOKEN`, which now needs `read:package`.
- **`infra/gitea/registry-retention.sh`** (dry run by default; operator action); the
`conformance-trigger-kubeconfig.sh` precondition fix; and the docs (pm-agent README, runbook,
plan, conformance README, devcontainer README, workflows README). The docs are updated again
for BuildKit, and there is a new `platform/buildkit/README.md`.
### Decisions and pushback
- **The push credential is a PAT secret, `REGISTRY_PUSH_TOKEN`; the Actions token cannot push.**
Checked against Gitea **v1.24.3** source:
- `services/auth/basic.go` `Basic.Verify` turns a task token into the pseudo-user
`gitea-actions` (ID −2) and sets no token scope;
- `routers/api/packages/container/container.go` `Authenticate` (the `/v2/token` exchange every
docker client performs) requires `read:package`/`write:package`/`all` scope, so it answers
401. The Actions token cannot even *pull*;
- `services/context/package.go` `determineAccessMode` has `// TODO: ActionUser permission check`
and no branch for that user. Even past login it would get at most read on a public org;
- `models/repo/repo_unit.go` `ActionsConfig` has no token-permissions setting in 1.24.3.
The workflow fails loudly when the secret is absent, copying the `RENOVATE_TOKEN` preflight
pattern. With BuildKit the credential reaches the daemon through the buildx session (a
0600 `config.json` in the job's temp dir), never through the cluster.
- **`regex` vs `custom.regex`: both work. Switched to the canonical `custom.regex`.** In Renovate:
- `lib/config/migrations/custom/enabled-managers-migration.ts` rewrites `regex` →
`custom.regex`;
- that migration runs on every repository run (`lib/workers/repository/init/merge.ts` →
`migrateAndValidate`), not only in the validator;
- `lib/modules/manager/index.ts` `getEnabledManagersList` accepts either spelling;
- `custom.regex` exists since 37.51.1 (renovatebot/renovate#24079).
- **The open question hid a bigger bug: the Renovate config on main is invalid for the Renovate
the workflow actually runs.**
- `renovatebot/[email protected]` defaults `renovate-version` to `39`
(`action.yml`, `src/docker.ts`), which is 39.264.0.
- The validator used in #79 was `ghcr.io/renovatebot/renovate` with no tag, i.e. `latest`,
44.167.0.
- **Measured:** `renovate:39.264.0 renovate-config-validator` on main's `renovate.json5` gives
`ERROR: Found errors in configuration` with five errors, all `managerFilePatterns`.
`fileMatch` was renamed in 40.2.0.
- So once #80 fixes the filename, every run would still die at `CONFIG_VALIDATION`.
- Fixed by pinning `renovate-version: 44.167.0`. This branch's config validates clean on it.
The only `--strict` complaint is a pending migration of the pre-existing top-level
`"docker": {"enabled": true}` block, which I left alone.
- **Unworkable as briefed: tracking the worker Job template's digest.**
- `infra/agent/worker-job-template.yaml` is `COPY`ed into agent-runner. A Renovate bump there
changes agent-runner's inputs, CI publishes a new digest, Renovate bumps it again, and so on
forever.
- `pm-dispatch` overwrites that field from `PM_WORKER_IMAGE` at runtime
(`pm-dispatch.py:649`), so nothing is lost by leaving it all-zero. It is commented as
deliberately untracked.
- For the same loop reason, `conformance/versions.env` is **not** an input of the
conformance-runner build, and a pipeline-only change does not republish on main.
- **Changed from the brief: retention is a script, not a Gitea cleanup rule.**
- Gitea 1.24.3 has **no API** for cleanup rules (none in `routers/api/v1/api.go`; web
session+CSRF forms only, in `routers/web/web.go`). So a rule cannot be created, or
drift-asserted, as code. **`ci/gitea-settings.sh` was therefore not extended.** A cheaper
proxy (count versions per image) would need `read:package` on `SETTINGS_API_TOKEN`, which
it lacks.
- A built-in rule is also **unsafe here**. Gitea stores a manifest as a file of the TAG
version it was pushed under (`routers/api/packages/container/manifest.go`
`createPackageAndVersion`), and resolves a by-digest pull from those files
(`models/packages/container/search.go`). Deleting the tag a deployed digest was pushed under
breaks the `@sha256:` pull, and the rule's "newest N" knows nothing about what git pins. The
script keeps every digest git pins.
- **Auto-merge.** Digest bumps of these images auto-merge on a green gate (the existing
`digest` rule). The exception is the conformance-runner bump: `conformance/versions.env` is a
sensitive path, so it waits for an administrator's `/approve-override` every time.
## What I verified
**Proved locally, against the exact pinned images:**
- **Rootless buildkitd, configured as the manifest configures it.**
- Setup: the pinned `moby/buildkit:v0.34.1-rootless` digest, under rootless podman, with
`--cap-drop ALL --cap-add SETUID --cap-add SETGID`, seccomp unconfined and `--read-only`;
tmpfs at the same five paths; the ConfigMap's `buildkitd.toml`; mTLS on :1234.
- The image's `/etc/subuid` was overridden with `user:1:999` and `user:1001:64535`, because
rootless podman maps only 65,537 uids. rootlesskit's real `newuidmap` user-namespace path
still ran.
- It started, `buildctl debug workers` listed the OCI worker, and `debug workers -v` showed the
GC config applied (max 4.29 GB, reserved 1.07 GB).
- **The securityContext, item by item.** Each requirement was measured by taking it away:
- **default seccomp:** daemon starts, every RUN step fails → `Unconfined` is required;
- **no `SETUID`/`SETGID`:** rootlesskit dies with
`newuidmap … operation not permitted` → both capabilities are required;
- **`--read-only` rootfs:** works once the five emptyDirs exist. Its only failure was the
probe client's `~/.docker`, which is now an emptyDir;
- **minimal caps + Unconfined seccomp:** works, and a RUN step executes.
- **The full CI path, in the actual CI job image.** Setup: `ghcr.io/catthehacker/ubuntu:act-22.04`
running `.gitea/workflows/scripts/images.sh` in verify mode. It downloaded and sha256-checked
buildx v0.38.1, connected over mTLS, and bake-built all three `verify` targets from an empty
cache. rc 0, 1m32s total:
- `TOOLBOX VERIFIED` (42 s);
- `AGENT-RUNNER VERIFIED` (26 s): selftest OK, probe "20 refusal(s), 0 failure(s)", and built
FROM the in-run toolbox through the `target:` context, with the log showing
`[agent-runner-verify toolbox 1/6]` and `base=toolbox-in-this-run`;
- `CONFORMANCE-RUNNER VERIFIED` (21 s): all seven refusals;
- every stage printed `confirmed: no network`.
- **mTLS rejects what it should.** Tested with a real BuildKit API call (`buildctl debug workers`):
- no client cert → `remote error: tls: certificate required`;
- a client cert from another CA → rejected the same way;
- the valid cert → accepted.
Through the driver:
- another CA's client cert → rc 1;
- the wrong CA for the server → rc 1;
- an unreachable host → rc 1 in about 20 s, with the explanatory message;
- missing secrets → rc 1, naming the three secrets.
- **The local podman path**, `build-image.sh` for all three (rc 0).
- Negative control: a verify stage expecting a different promtool version printed
`DRIFT promtool want 9.9.9` and failed the build.
- Negative control: the `--network=none` check fails when the flag is removed.
- **`buildkit-client-secret.sh`'s sanity checks**, run offline on local certs. They tell apart:
- a good client cert;
- a server cert (not client-auth);
- a mismatched key;
- a cert from another CA.
**Measured live, read-only:**
- node user namespaces, Debian 13.7 and AppArmor (via an Ansible `sysctl`/`cat`);
- DinD's MASQUERADE rules;
- the live ClusterPolicies, namespaced Policies, PSA labels, and cert-manager v1.21.3 with its
ClusterIssuers;
- the act-runner pod labels.
**Renovate (unchanged since the first iteration):**
- the validator with 44.167.0: exit 0;
- `extract` finds all four markers;
- the `kubernetes` duplicates are `skipReason: disabled`;
- 39.264.0 rejects `main`'s config.
**Local gate, CI results:** see the PR body. They are recorded there because this entry is part of
the tree being gated.
## What I did NOT verify
- **platform/buildkit has never run in the cluster.** It can't until it merges: agents may not
`kubectl apply`, and Flux reconciles only `main`. So this PR's own `images` job **cannot build
and is expected to fail at the builder preflight**, which is the designed loud failure. The
following are therefore all unproven in-cluster:
- kubelet admitting the pod;
- containerd honouring `appArmorProfile: Unconfined`;
- the five emptyDirs;
- cert-manager issuing the three certs;
- the CiliumNetworkPolicies.
- **AppArmor `Unconfined` is reasoned, not measured.** My test host runs SELinux, so the AppArmor
requirement comes from upstream's example plus the nodes having AppArmor enabled. If the pod
were to work under `RuntimeDefault` AppArmor, that line could be tightened; I did not test it.
- **The local userns mapping is narrower than the cluster's.** Locally it was 65,535 ids across
two ranges; in the cluster it is the image's own `100000:65536` against real host subuids. That
is the normal case, but it is the cluster's first test.
- **The NetworkPolicies are untested.** In particular:
- that `toEntities: [ingress]` admits the push to the Gateway VIP. The comment explains the
reasoning, but it is unmeasured;
- that world :443/:80 covers every download the builds make. A dnf mirror on another port
would fail a build visibly.
- **No push, anywhere.** The whole publish path is unexercised:
- `REGISTRY_PUSH_TOKEN` reaching buildkitd through the buildx session;
- `push=true`;
- the metadata digest compared with the registry read-back;
- agent-runner FROM `toolbox@sha256:`;
- the immutable-tag guard;
- idempotence.
So are the 15 s Envoy route-timeout risk on blob finalisation, and the Gitea PVC (10Gi, shared
with repositories) absorbing ~2 GB per toolbox publish until retention runs.
- **Node disk under real builds.** The cache emptyDir (6Gi limit, 4 GB GC cap) sits on nodes that
had 7–9 GB free. It is untested under concurrent pressure.
- **Certificate rotation is designed, not exercised.** The server cert renews 30 days early but
buildkitd only reads it at start; the client copy needs the script re-run.
- **`--oci-worker-no-process-sandbox` is an accepted risk, not a mitigated one.** A build step can
ptrace the daemon and read its TLS key and cache. Anyone with the client cert, which means every
PR job, can run build steps.
- **Renovate has still never completed a run.** It is blocked on #80, on `RENOVATE_TOKEN` gaining
`read:package`, and on this branch. The `[email protected]` + 44.x image pairing is
untested.
- **Pods cannot pull these images until PR #61** (the kubelet pull secret) merges.
- **`registry-retention.sh --apply` has never run**; its keep logic has only run against an empty
registry.
@@ -0,0 +1,172 @@
---
date: 2026-10-29
branch: feat/keycloak-passkey-reconcile
title: "Passkey reconciler review fixes: bind only on git's say-so (rollback sticks), protect the real 26.0.6 sub-flows, screen the requirement PUT by body id, alert on failure"
---
## What changed
This branch carries the unmerged passkey reconciler (commit `36fcb7b`, cherry-picked with its
authorship, recorded in `decisions/2026-10-18-keycloak-passkey-reconciler.md`) plus the fixes for a
review of it. Read that entry for the design; this one records what the review found and what
changed.
**1. HIGH: the bind was automatic, and rollback did not stick.** Within one tick of merge the
reconciler would build and BIND `browser-mfa-<hash>`, a login flow no human had tried. Worse, the
README's rollback (rebind `browser-mfa`) was undone every 15 minutes: the next run found the
verified candidate again and rebound it, and a hotfix inside the bound flow was "corrected" by
building and binding an `-r2`.
- New git-declared switch: `bind-browser-flow` in `platform/keycloak/passkey-desired-state.yaml`,
a second key of the same ConfigMap, so it reaches the pod through the existing mount. **Default
`"false"`.** It is the one hand-edited line in a generated file: the renderer carries it through
on `--write`, and `--check` (run by the L0 gate) refuses anything but the quoted strings `"true"`
/ `"false"`. An unquoted `true` is a YAML boolean, which a ConfigMap rejects at apply time and
which would have failed the whole `platform-config` Kustomization, realm import included.
- `"false"`: pass 3 builds and verifies the candidate (or reuses a verified one), logs
`WOULD BIND <alias>`, exits 0 with `KEYCLOAK_PASSKEY_RECONCILED_OK_PENDING_BIND`, and never PUTs
a changed `browserFlow`. That holds after an earlier bind too, so the operator's rebind sticks.
If the bound flow *is* the candidate alias and has been hand-edited, it is left alone (no `-r2`
is built beside it).
- `"true"`: binds as before, and keeps asserting it. That is GitOps working; the README says so,
and says not to hotfix the flow while it is `"true"`.
- The CronJob passes no flag. `--no-bind` still exists for a hand-run Job and can only narrow
git's value. The L0 check asserts the CronJob carries no `--` argument.
- Rollback is now: a PR setting `"false"` (first), then one rebind write. README documents the
order and why it matters, plus how to test the candidate on one client (a per-client
`account-console` browser-flow override) before the go-live PR.
**2. HIGH: the protected-subtree guard read the wrong field for sub-flows.** Read from source at tag
26.0.6 (`services/src/main/java/org/keycloak/services/resources/admin/AuthenticationManagementResource.java`,
fetched from GitHub this session): `recurseExecutions` sets `displayName = flowRef.getAlias()` and
`flowId` on a sub-flow row and never calls `setAlias`. `alias` is set only on authenticator rows,
where it holds the bound **config's** alias. So the protected set was `{bound}` alone, and a write
into `browser-mfa-forms` would not have been refused. The old stub returned `alias` on sub-flow
rows, which is why all 216 assertions passed anyway.
- New `subflow_alias()` reads `displayName` and cites the source. I did not resolve by `flowId`:
`getFlows()` (same file) filters to `isTopLevel()`, so a nested sub-flow's id resolves to nothing
through the flows list. A sub-flow row with no `displayName` makes the listing unreadable, which
leaves the flow pass fail-closed.
- The stub now returns rows shaped like 26.0.6's: sub-flow rows carry `displayName`, `flowId` and no
`alias`/`providerId`. Authenticator rows carry a display *type* as `displayName` (not the
provider id) and the config alias as `alias`. Nulls are omitted.
- New assertions: after a real run, `browser-mfa-forms` and `browser-mfa-conditional-otp` are in
the protected set, and an execution add or requirement write into them is refused. A missing
`displayName` fails closed.
**3. MEDIUM: `PUT /flows/{alias}/executions` was screened on the wrong field.** `updateExecutions`
resolves `realm.getAuthenticationExecutionById(rep.getId())` without checking membership in
`{alias}`. The same handler also renames the flow named by `rep.getFlowId()` when the body carries
`authenticationFlow` + `displayName`. Now:
- `body["id"]` is screened against the protected execution ids.
- It must also be in `_BUILD_EXECUTION_IDS`: the ids read back from the flow this call just
created, open only inside `build_flow`.
- The config `POST /executions/{id}/config` is held to the same build scope.
- The body may carry only `id`, `requirement` and `priority`.
- Selftest cases cover each of these.
**4. Stale docs on sensitive paths** now describe what ships, including the switch:
`platform-config/kustomization.yaml`, the chainsaw test header, the desired-state header and its
renderer template, the renderer's own header and `--check` message, and the README.
**5.**
- `backoffLimit: 0`: every failure is deterministic within a tick, and a retried build burns
another of the 5 candidate aliases.
- New alert `KeycloakPasskeyReconcilerFailing` in `platform/monitoring/alerts.yaml` (warning,
`for: 15m`, `kube_job_status_failed` on `job_name=~"keycloak-passkey-reconciler-.*"`), the same
shape as the sibling's. It has promtool tests in
`platform/monitoring/tests/keycloak-passkey-reconciler.test.yaml`, in both directions plus
"the sibling's failure is not this alert" and "one transient failure stays quiet". The alert
ratchet in `alert-rules-unit-tested` would have refused it untested. A new runbook,
`runbooks/keycloak-passkey-reconciler.md`, is projected by the runbooks generator.
- The stale "Renovate does not manage plain `image:` tags" comment is corrected: `renovate.json5`
enables the `kubernetes` manager over `platform/**`. The image is pinned to
`python:3.13.15-alpine3.23@sha256:6438599575cca0d1df94aeee0d2ae088d4d8846eab554b2ee7784a3a6df0d516`,
the multi-arch index digest read from Docker Hub today. The tag is mutable: the sibling
reconciler's pod on prod reports `imageID ...@sha256:75f27d68...` under the same tag, which is
neither today's index nor today's amd64 manifest.
**6. Hygiene.** The ~160-line header that appeared in both the YAML and the script is now kept once,
in the script, where it ships next to the code and its selftest. A short header above the
ConfigMap points to it. Nothing else was restructured, apart from the build's second half moving
into `_finish_build()` so the build scope can be opened and closed around it.
Sensitive paths touched: `ci/**` (renderer), `conformance/**` (L0 check, mutations, chainsaw),
`platform-config/kustomization.yaml` (comment only). This needs the operator's
`/approve-override` or a non-author review. I did not post one.
## What I verified
- **Local toolbox gate, rc 3** (pinned toolbox via `dev.sh`, `DEV_KUBECONFIG=/dev/null`, ENGINE
shim bind-mounting the main `.git`, run on the committed branch). Stages: `spec-immutability`
pass (the spec repo resolved as a sibling), `decisions-log` pass, `lint` pass, `l0` pass
(including `keycloak-passkey-reconciler`, `alert-rules-unit-tested` and
`alert-runbooks-resolvable`), `render-golden` pass, `l1` pass, `approval-policy` pass (N/A
offline; it is guaranteed to fail in CI). **`gitea-settings` did not run** (no
`SETTINGS_API_TOKEN` locally) and is the only stage that did not run. L2/L3 `conformance` is
skipped by design (no cluster). rc 3 is **not** green.
- `platform/monitoring/tests/run.sh platform/monitoring/tests/keycloak-passkey-reconciler.test.yaml`
in the toolbox: `promtool check rules` SUCCESS (54 rules), `promtool test rules` SUCCESS,
promtool 3.14.0.
- **Selftest: 259 assertions pass** (was 216), extracted from the shipped ConfigMap by the L0
check.
- **`mutations.py`: 40 of 40 injected regressions caught** (was 30). The ten new ones each undo
one fix:
- sub-flows read by `alias` again;
- an unnameable sub-flow tolerated;
- the requirement PUT screened on its path only;
- execution writes not held to the build tree;
- extra body keys allowed;
- the bind switch ignored in `run()`;
- the bind switch ignored in `reconcile_flow()`;
- an absent switch reading as true;
- an invalid switch guessed at;
- `-r2` built beside a hand-edited bound flow.
"Sub-flows by `alias`" is caught less cleanly (the selftest aborts on an unreadable listing
rather than failing an assertion). It is still caught.
- The renderer accepts `"true"` and `"false"` and refuses `true` (unquoted) and `"yes"`. I
checked this by hand-editing the committed file and running `--check`.
- The 26.0.6 source for `recurseExecutions`, `updateExecutions` and `getFlows` was read directly
(lines ~225-231, 658-724 and 747-806 of the file at that tag).
- Read-only `kubectl --context k3s-prod`: Keycloak pods run `quay.io/keycloak/keycloak:26.0.6`
(2 replicas). The only CronJob in `keycloak` is `keycloak-client-secret-reconciler`, so the
passkey reconciler is **not** live.
## What I did NOT verify
- **Nothing has run against a real Keycloak.** The stub's row shapes now follow the 26.0.6
source, but they are still my reading of that source, not a captured response. In particular,
I have never seen a live executions listing to confirm `displayName` on a sub-flow row. If it
differs, the failure is fail-closed (no build), not fail-open.
- **The candidate flow has never been tested in a browser.** That is now a precondition of the
go-live PR (README, "Testing the candidate flow before binding it"). Nobody has run those steps.
I also have not checked that the per-client `account-console` override behaves as described on
26.0.6.
- **"Merging changes nothing users see" is true of login, but passes 1 and 2 still write the
realm.** They set the passwordless policy and enable the enrolment action. That action is
enabled by default in 26.0.6, but I did not read the live realm, because no admin API calls were
allowed. Pass 3 also creates the unbound candidate flow (realm DB writes, invisible to login).
- **Race in pass 1, not fixed:** the policy PUT is a read-modify-write that carries `browserFlow`
back from its own GET. An operator rebind landing between that GET and PUT would be reverted.
The window is one HTTP round trip and only exists when the policy has drifted.
- **The alert has never seen a real series.** The CronJob has never run, so
`kube_job_status_failed{job_name=~"keycloak-passkey-reconciler-.*"}` does not exist yet. Its
shape is copied from the sibling's rule, which does have live series.
- **The digest is of today's index.** I did not pull it or run the image. Renovate's handling of a
`tag@digest` pin under the `kubernetes` manager is from its documentation, not from a Renovate
run here.
- **CI's own result** is in the PR, not here. `approval-policy` is expected to fail until the
operator overrides.
### Follow-ups (out of scope here, deliberately not done)
- A dedicated least-privilege service-account client for the reconciler, instead of the
master-realm break-glass admin it shares with the client-secret reconciler.
- A NetworkPolicy for the `keycloak` namespace.
- Whether a passkey login should skip TOTP for platform-admins. This is the PR #72 design
decision, currently "no TOTP after a passkey".
- A `KeycloakPasskeyReconcilerStale` rule (no successful run in N hours), like the sibling's.
Only the failure alert was in scope.
@@ -0,0 +1,57 @@
---
date: 2026-10-29
branch: fix/renovate-config-filename
title: Renovate has failed every run since #79 — the workflow still named renovate.json
---
## What changed
**`.gitea/workflows/renovate.yaml`** — `configurationFile: renovate.json` → `renovate.json5`.
PR #79 (`fix/renovate-invalid-config`) renamed the config to `renovate.json5` and did not update
the one line in the workflow that names it. Measured 2026-10-29 from the Gitea Actions log of run
322 (task 513, schedule, 08:15 UTC):
Error: ENOENT: no such file or directory, stat '/workspace/Home-Network/home-network-k3s-impl/renovate.json'
Runs 315–322 (2026-10-22 → 10-29, every one listed) are all `failure` on the `schedule` event,
each failing in about one second. Renovate never started. `RENOVATE_TOKEN` **does** exist as a
repository Actions secret (listed by name via the API; value not read), so the token preflight
passes and this filename is the only blocker observed.
**`ci/lint.sh`** — a new assertion after yamllint: every non-comment `configurationFile:` key in
`.gitea/workflows/*.y*ml` must name a path that exists. This is valid YAML, so yamllint cannot see
it, and the gate stayed green through 11 days of failures.
**Second blocker, same PR:** the workflow did not pin a Renovate version, so
`renovatebot/[email protected]` ran its default, Renovate **39** (`action.yml`:
`renovate-version` `default: '39'`, read at that tag). `renovate.json5` uses `managerFilePatterns`,
which needs >= 40.2.0. Under 39.264.0 the validator rejects the config with five errors. This was
found and reproduced by the image-pipeline worker (PR #81). #79 had validated against `latest`. Pinned
`renovate-version: 44.167.0`, the version the config validates clean against per that worker.
## What I verified
- The root cause, from the run log quoted above, and that `origin/main` has `renovate.json5` and
no `renovate.json` (`git ls-tree`).
- The new guard, both ways, run standalone: on this branch it prints
`workflow configurationFile references resolve`, rc 0. With the line reverted to `renovate.json`
it prints `configurationFile 'renovate.json' does not exist in the repo`, rc 1. My first version
also matched its own explanatory comment in the workflow and failed. That is why the grep is
anchored to non-comment lines.
- Toolbox gate: result and rc are reported in the PR, not predicted here.
## What I did NOT verify
- **The 39.x rejection and the 44.167.0 pass were not reproduced by me.** I confirmed only the
action's default (`'39'`). The validation results are the PR #81 worker's.
- **Renovate has still never completed a run.** This removes the observed blocker. Others may
follow it. The test is a `workflow_dispatch` with `dry_run: true` after merge, and its log is
the first evidence that Renovate authenticates, extracts dependencies, and honours `.json5`.
- **The `enabledManagers: ["regex"]` vs `custom.regex` question** (#73, #77) is still open. The
same dry-run log answers it: look for the regex/custom manager's dependency-extraction count.
- **No alert for "Renovate keeps failing".** The guard prevents this specific cause from recurring.
Nothing notices a scheduled workflow that is red every day. That gap stays open.
- **Sensitive path.** `.gitea/**` and `ci/**` are both in `approval-policy.json`. CI will block
on `approval-policy` until the operator posts `/approve-override` as a review. The local gate
reports that stage as N/A.
@@ -0,0 +1,81 @@
---
date: 2026-10-30
branch: fix/gitea-admit-buildkit
title: The registry push 403 is Cilium refusing buildkitd's EGRESS at the Gateway — fixed in platform/buildkit, not in Gitea's ingress
---
## What changed
**`platform/buildkit/networkpolicy.yaml`** — `buildkitd-allow-egress` gains one rule:
`toEndpoints {io.kubernetes.pod.namespace: gitea, app.kubernetes.io/name: gitea}` on TCP 3000,
with a comment carrying the measurement. `platform/buildkit/README.md`'s policy row says the same.
**What did NOT change, deliberately:** `catalog/gitea.yaml` `inClusterClients` and
`apps/wave-0/gitea.yaml`. The brief proposed admitting `buildkit` there. The evidence below says
that is the wrong policy: Gitea's ingress is not what refuses the push, and adding it would only
open the direct ClusterIP path from build code to Gitea, which nothing uses.
### Why: the brief's hypothesis was half right
Images run 337 failed its push with `HEAD .../blobs/sha256:5855... 403 Forbidden: Access denied`.
The PM's hypothesis was that this was Cilium's Envoy denying the request, not Gitea. **That part
holds.** The hypothesis also said the denial came from Gitea's *ingress* policy, which does not
admit the `buildkit` namespace. **That part is wrong.** The denial is enforced on buildkitd's own
*egress*. Since Cilium 1.16.8/1.17.2 (CVE-2025-30162; prod runs `cilium:v1.20.1`), the Gateway's
L7 load balancer re-evaluates the source pod's egress policy against the identity of the backend
it resolves to. buildkitd's egress allowed `world` :443/:80 and the `ingress` entity. That gets
the TCP connection to Envoy, but no rule matches Gitea's backend identity, so Envoy answers
`403 Access denied` without forwarding the request. This is the failure commit `68690e5` fixed for
every SSO app's hop to Keycloak, and the fix has the same shape. Keycloak's ingress names no app
namespaces either.
## What I verified
All measurements are read-only, against `k3s-prod`, on 2026-10-30 around 05:27–05:37 UTC.
- **Gitea never saw the failed push.** Its router log for the previous 12h had 316 `/v2/` lines
and **0** that were `toolbox/blobs`, PUT, POST or PATCH. It also had **0** from buildkitd's pod
IP (`10.0.0.7`). In the same window it logged the CI job's own `HEAD .../toolbox/manifests/
sha-0dd57fbaf002 → 404` from the act-runner pod (`10.0.0.38`). Requests that came through the
Gateway reach Gitea and get logged. This one never arrived.
- **A reproduction with no credentials.** An unauthenticated `GET https://gitea.home.keithjackson.dev/v2/`
(Gateway VIP `192.168.2.20`) gave:
- from the buildkitd pod: **`403 Forbidden`**, with no matching line in Gitea's log;
- from the act-runner pod's `dind` container: **`401 Unauthorized`**, which is Gitea's normal
registry challenge, logged by Gitea as `GET /v2/ for 10.0.0.38:0, 401`.
No token was involved, so this cannot be a package-permission problem. The bot account and the
`REGISTRY_PUSH_TOKEN` were not the cause, and the operator does not need to change them.
- **Hubble names the enforcement point.** On `cilium-55jv8`, buildkitd's node:
`buildkit/buildkitd-859d67c8f8-x44nh (ingress) -> gateway/cilium-gateway-shared:443 http-request
DROPPED (HTTP/1.1 GET https://gitea.home.keithjackson.dev/v2/)`, followed by `http-response
FORWARDED (HTTP/1.1 403 0ms)`. In the JSON form, **`traffic_direction: EGRESS`**. Envoy wrote
the 403 itself in 0 ms.
- **Gitea's ingress does not need the source namespace.** The act-runner pod's namespace
(`gitea-actions`) is **not** in Gitea's ingress allows. Its NetworkPolicy
`default-deny-ingress-allow-egress` has an `{}` egress rule, so its egress is unrestricted. Its
requests through the Gateway still reach Gitea. `cilium-dbg bpf policy get` on Gitea's endpoint
(1876 on `cilium-9rk5x`) shows all Gateway traffic admitted as `reserved:ingress 3000/TCP`
(391 MB, 1.19 M packets) and no row for `gitea-actions`. The source-identity check therefore
happens on the source's egress, not on the destination's ingress.
- **The policy gap is visible in the BPF map.** `bpf policy get 83` (buildkitd) has these egress
rows and nothing else: `reserved:world` 80/443, `reserved:ingress ANY`, and kube-dns 53. There
is no Gitea identity.
- The edited YAML parses (three documents, names unchanged).
## What I did NOT verify
- **That this rule turns the 403 into a 401/200. UNVERIFIED.** That needs the policy applied, which
is a Flux/operator action. My confidence is high but not proven, and it rests on two things. The
Hubble verdict is EGRESS. Commit `68690e5` made the identical change for Keycloak and recorded
"Verified live: headlamp-ns -> keycloak discovery 403 -> 200".
- **The port restriction.** The rule names `3000`, Gitea's container port, which is the upstream
port Envoy connects to. The Keycloak precedent has no port. If the 403 survives, the first thing
to test is whether L7LB enforcement uses the frontend :443 instead. I expect it does not.
- **Run 337's own flows.** The Hubble ring buffer had already rotated past them, and buildkitd had
been restarted since (the pod was 18 minutes old). The reproduction above uses the same path, the
same pod spec and the same policy, but it is not the original request.
- Envoy's access logs in the `cilium-envoy` pods. Hubble's L7 flow already shows the drop, so I
did not read them.
- The push itself, the Renovate digest flow, and whether the bot team's `Packages=Write` is enough
for a first push that creates a new package. These only become testable after this lands.
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---
date: 2026-10-30
branch: fix/renovate-auth
title: Renovate's token needs five scopes, not three; the workflow documented the wrong list, and now probes it
---
## What changed
**The fix is operator-side.** `RENOVATE_TOKEN` lacks `read:organization`, and it will next lack
`write:issue`. The operator must re-mint it with five scopes:
- `read:user`
- `read:organization`
- `write:repository`
- `write:issue`
- `read:package`
The git half fixes the two things that sent the operator round this loop twice.
**`.gitea/workflows/renovate.yaml`**:
- **The header's scope list is corrected**, with the call each scope serves. The old list named
only `write:repository`, `read:user` and `read:package`, and the operator minted exactly that.
The preflight's "TO FIX" text is corrected the same way.
- **A new step, "Preflight - the token has every scope Renovate needs".**
- It probes read-only GETs: `/user` for read:user, `/orgs/Home-Network` for read:organization,
`/repos/{repo}` for read:repository, `/repos/{repo}/labels` for read:issue, and registry
`/v2/token` for read:package.
- It reads the token's own scope list out of Gitea's 403 from `/admin/orgs` (names only), and
requires `write:repository` and `write:issue` in it.
- It says what a failure means: 401 is the value; a Gitea 403 is a scope, and the probe prints
Gitea's message; an "Access denied" 403 is a Cilium/Envoy denial.
- The token is fed to curl on stdin (`--config -`), never in argv.
**`ci/lint.sh`**: a new guard rejects any non-comment `uses:` in `.gitea/workflows` that needs a
Docker daemon: `docker://`, `renovatebot/github-action` and Docker's daemon-bound
`docker/*-action`s. That is the class of bug fixed in #84.
### Root cause, with evidence
Run 350 (task 567, 06:49 UTC) **got further than 348 and 349.** Gitea's router log, filtered to
the act-runner pod `10.0.0.38`:
06:49:31 GET /api/v1/user 200 OK
06:49:31 GET /api/v1/version 200 OK
06:49:31 GET /api/v1/repos/Home-Network/home-network-k3s-impl 200 OK
06:49:31 GET /api/v1/orgs/Home-Network 403 Forbidden
There were no `/v2/` requests: Renovate stopped before extraction. From the job log, verbatim:
ERROR: Repository has unknown error (repository=Home-Network/home-network-k3s-impl)
"url": "https://gitea.home.keithjackson.dev/api/v1/orgs/Home-Network",
"message": "token does not have at least one of required scope(s), required=[read:organization], token scope=read:package,write:repository,read:user"
"x-envoy-upstream-service-time": "27", "server": "envoy"
INFO: Repository finished ... "result": "unknown-error", "exitCode": 8
**This is not Cilium.** The body is Gitea's JSON scope message, Gitea logged the request, and
`x-envoy-upstream-service-time` shows that Envoy forwarded it upstream.
**The secret WAS updated.** Runs 348 and 349 got `GET /user 403` from `tokenRequiresScopes`. Run 350
got `/user 200`, and its token scope list now includes `read:user`.
**Why `read:organization` is needed.** Renovate 44.167.0, `lib/modules/platform/gitea/index.ts`
`initRepo`, calls `helper.isOrg` → `GET /orgs/{owner}` and rethrows on error. Gitea 1.24.3,
`routers/api/v1/api.go`, puts `/orgs/{org}` behind
`tokenRequiresScopes(AccessTokenScopeCategoryOrganization)`.
**Why `write:issue` is needed next.** In the same `api.go`, `/repos/{o}/{r}/issues…`, `/labels`
and `/milestones` sit in a group with `tokenRequiresScopes(AccessTokenScopeCategoryIssue)`
(lines 1466–1582). Renovate's gitea-helper uses `/issues`, `/issues/{n}/labels`, `/labels` and
`/issues/{n}/comments`, for the dependency dashboard (`:dependencyDashboard` is extended) and for
PR labels. A dry run only reads them; a scheduled run writes them.
The other causes the coordinator listed are ruled out:
- **Schedule window and dry-run.** The run never reached branch processing.
- **Repository config.** The run never reached the clone (`"cloned": undefined`).
- **The Summary step.** It is not involved; the failure is Renovate's own exit 8.
## What I verified
- I read the whole run 350 job log (204 lines), and the router lines above. Runs 348 and 349 are
as recorded in `decisions/2026-10-30-renovate-first-run.md`'s follow-up: `/user` got 403 from
`tokenRequiresScopes`.
- **The probe step, in the pinned image.** I extracted the step body from the YAML and ran it in
`ghcr.io/renovatebot/renovate:44.167.0` (`curl` 8.5.0 and `jq` are present) with a deliberately
**bogus** token. Every probe reported 401 with the "token VALUE" diagnosis, the scope-list read
fell back to a warning, and the step exited 1.
- **The scope-list parser.** Against run 350's exact message format it reports `write:issue`
MISSING. Against a five-scope list it reports both OK. Against `all` it reports both OK.
- **The lint guard.** It flags `renovatebot/github-action` in the pre-#84 `renovate.yaml`
(dfc432c, line 152). It reports nothing on the current workflows, and it ignores commented
lines. `bash -n ci/lint.sh` passes.
- **Account facts, read-only.** `renovate-bot` is a collaborator with `write`, and the org is
public.
## What I did NOT verify
- **The probe with a real token. UNVERIFIED.** I never had the token. In particular, I have not
observed that `GET /api/v1/admin/orgs` gives renovate-bot's token a 403 with a `token scope=`
list. The source says the scope check runs before `reqSiteAdmin`. If the message format
differs, the step warns and does not fail.
- **That five scopes are enough for a full non-dry run.** They cover every helper endpoint Renovate
44.167.0 calls, mapped to Gitea 1.24.3's route categories by reading source. Branch pushes go
over git-over-HTTPS with the token; I believe that needs write:repository, but I have not
observed it.
- **Registry reads as renovate-bot.** `read:package` on a public org is expected to work. The new
probe is the first real test of it.
- **Sensitive paths.** `.gitea/**` and `ci/**` are both sensitive. CI's `approval-policy` will block
until the operator posts `/approve-override` as a PR review.
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---
date: 2026-10-30
branch: fix/renovate-first-run
title: Renovate never started because its action needs a Docker daemon jobs here do not get; it now runs as the job container
---
## What changed
**`.gitea/workflows/renovate.yaml`**: the job no longer uses `renovatebot/github-action`. The
pinned Renovate image (`ghcr.io/renovatebot/renovate:44.167.0`, the same version the action was
pinned to) is now the job's `container:`. A `run:` step calls `renovate-entrypoint.sh renovate`
inside it. `actions/checkout` is gone, because Renovate clones the repo itself.
`GITHUB_COM_TOKEN` is wired from a new **optional** secret, `RENOVATE_GITHUB_COM_TOKEN`. The step
unsets it, and `RENOVATE_DRY_RUN`, when they evaluate to the empty string. The preflight also
prints `renovate --version`, which proves the step ran inside the pinned image.
**`renovate.json5`**: one comment now names `container.image` as the version pin, in place of
`renovate-version`. The config itself is unchanged.
### Why: the root cause
Every run of the action died before Renovate started. That includes the operator's dispatch,
run 343 (task 555, 2026-10-30 06:14 UTC), and the 11 scheduled runs before it (312–322). From
run 343's log:
RENOVATE_TOKEN is present (value not printed).
[command]/usr/bin/docker run --env LOG_LEVEL ... --env RENOVATE_TOKEN=*** --env RENOVATE_CONFIG_FILE=/github-action/renovate.json5 ...
failed to connect to the docker API at unix:///var/run/docker.sock; check if the path is correct and if the daemon is running: dial unix /var/run/docker.sock: connect: no such file or directory
Error: The process '/usr/bin/docker' failed with exit code 1
The action is only a wrapper around `docker run`. On this runner a job deliberately gets no
Docker daemon (`decisions/2026-10-29-image-pipeline.md`): act_runner maps `docker_host` to `-` when
`DOCKER_HOST` is `tcp://`, and the DinD daemon is privileged. So this was a
platform-compatibility failure. The run never reached authentication, token scope, config or the
network. **The re-minted token is not implicated, and nothing in this log can say whether its
scopes are right.**
A job `container:` needs no daemon. act creates it through the runner's DinD the same way it
creates the default `ubuntu-latest` image, then `exec`s each step inside it. I checked this
against gitea/act v0.261.2:
- The job container's entrypoint is `/bin/sleep` (`run_context.go`). The Renovate image has
`/usr/bin/sleep`.
- The step command files are written `0o666` (`step.go`), so the image's uid 12021 can write
`$GITHUB_STEP_SUMMARY`.
- `HOME` comes from the image env.
## What I verified
- **The root cause.** I read all of run 343's job log (162 lines, job 0; job 1 is 404). It has one
error, quoted above, and no Renovate output at all. Runs 312–322 are all `failure` from the
`schedule` event.
- **The config validates against the pinned tag.** `podman run ... ghcr.io/renovatebot/renovate:44.167.0
renovate-config-validator /tmp/renovate.json5` printed `Config validated successfully`. It also
printed the known migration diff for the top-level `docker` block.
- **A dry run with the fix extracts and looks up dependencies.** This was a local reproduction. I
made a clean snapshot of this branch's tracked files. I ran it in a podman container of the pinned
image with entrypoint `/bin/sleep`, as the image's own uid 12021 with `HOME=/home/ubuntu`.
Inside it I `exec`ed the workflow step's `run:` body, extracted verbatim from the YAML, with:
- `RENOVATE_PLATFORM=local`, `RENOVATE_DRY_RUN=full` and `GITHUB_COM_TOKEN=` (empty, to
exercise the unset);
- a docker host rule for `gitea.home.keithjackson.dev` using the `gitea-admin` credential from
`~/.git-credentials`, passed through env and never printed.
The run exited 0 and logged `Dependency extraction complete`:
- flux 15 deps / 13 files
- github-actions 24 / 4
- kubernetes 131 / 67
- kustomize 2 / 2
- regex (both custom managers) 7 / 6
- **total 179 deps / 92 files**
It found **42 updates**: 29 kubernetes, 6 flux, 2 kustomize, 1 github-actions and 4 regex
`digest`. 7 of them are `major`.
- **The `# renovate-digest:` lookups against the Gitea registry succeed.** All three
`/v2/token?scope=repository:home-network/<img>:pull` requests succeeded, and so did
`HEAD /v2/home-network/<img>/manifests/main`. They proposed `digest` updates for
`conformance/versions.env`, `infra/agent/versions.env`, `platform/pm-agent/configmap.yaml` and
`platform/pm-agent/deployment.yaml`, all of which carry the zero placeholder digest today. The
`kubernetes` manager's copies of those images report `disabled`, which is the intended effect of
the packageRule.
- **The new pin is still maintained by Renovate.** The github-actions manager extracts
`ghcr.io/renovatebot/renovate:44.167.0` from `renovate.yaml` as depType `container`, and proposes
44.198.0.
- **The `regex` vs `custom.regex` question from #73/#77 is closed.** Both custom managers produced
dependencies.
- **Missing GitHub token.** The local run logged `GitHub token is required for some dependencies`.
That accounts for 17 deps skipped with `github-token-required`, which is why
`RENOVATE_GITHUB_COM_TOKEN` is offered as an optional secret.
## What I did NOT verify
- **The workflow on the real runner. UNVERIFIED.** My reproduction ran with podman, not
act_runner + DinD, and used `--platform=local`. The act behaviour (sleep entrypoint, `exec` as the
image user, 0666 command files) comes from reading the gitea/act v0.261.2 source, not from a run.
The first real evidence will be a `workflow_dispatch` after merge.
- **The Gitea platform path and `RENOVATE_TOKEN`'s scopes. UNVERIFIED.** I have no access token, only
the `gitea-admin` password, which Renovate's Gitea platform cannot use. So these were not
exercised: platform init (`GET /user`, which needs `read:user`), repo clone, and the registry
lookups using the **token** with `read:package` rather than a password.
- **Behaviour inside the schedule window.** A dispatch outside 03:00–06:00 America/New_York
(07:00–10:00 UTC during EDT) will extract and look up, but will log "not within schedule"
instead of `DRY-RUN: Would create ...` lines. I did not change this.
- **Renovate as uid 12021 doing artifact updates** (for example helm lockfiles) on a real,
non-dry run. `--dry-run=full` does not run the tools.
- **The self-bump.** Renovate will propose `ghcr.io/renovatebot/renovate` 44.167.0 → 44.198.0 as a
minor, which the default rule auto-merges. `.gitea/**` is a sensitive path, so it will in fact
wait for an administrator override. Nothing re-runs `renovate-config-validator` on that bump,
and no gate check runs the validator.
- **No alert for "Renovate red every day".** That gap is still open. This failure ran for 12 days
without anyone noticing.
- **Sensitive path.** `.gitea/**` is in `infra/gitea/approval-policy.json`, so CI's
`approval-policy` stage will block until the operator posts `/approve-override` as a PR review.
@@ -0,0 +1,52 @@
---
date: 2026-10-30
branch: fix/renovate-hold-auth-and-self
title: Operator decision — the oauth2-proxy sidecar and Renovate's own version never auto-merge
---
## What changed
`renovate.json5` gains two packageRules. Both set `automerge: false` and `addLabels: ["needs-review"]`.
They sit after the auto-merge rule, so they override it at every update type. Each rule's
`description` carries the operator's reason.
1. **`quay.io/oauth2-proxy/oauth2-proxy`.** This is the single depName emitted for:
- `catalog/render.py` `OAUTH2_PROXY_IMAGE` (custom regex manager);
- the five rendered `apps/wave-*` sidecars;
- `platform/crafty/deployment.yaml` (kubernetes manager).
**Reason:** since v7.13.0, oauth2-proxy validates refreshed OIDC sessions against the access
token, not the id_token. Every sidecar sets `--cookie-refresh`, and that path is untested against
this Keycloak: the platform oauth2-proxy runs v7.15.5 without `--cookie-refresh`.
`render-golden` and `--selftest` pass on the bump, but both check rendered text, not the binary.
2. **`ghcr.io/renovatebot/renovate`.** This is the job `container.image` in
`.gitea/workflows/renovate.yaml`. The rule also lists `renovatebot/github-action`, so a
reintroduction would be held too. It is not used anywhere today; `ci/lint.sh` rejects it.
**Reason:** nothing re-validates `renovate.json5` against the new version before it takes
effect. The 39.x `CONFIG_VALIDATION` failure is the precedent.
## What I verified
- **The config validates on the pinned 44.167.0.** `renovate-config-validator` printed
`Config validated successfully`. The migration diff is only the pre-existing top-level `docker`
block.
- **The flag change is exactly the intended one.** I used Renovate 44.167.0's own
`resolveConfigPresets` and `applyPackageRules` to evaluate b4ff287's config and this branch's
config against the same updates (the local dry run of the #86 config). Exactly **2 of 29**
branch rows differ:
- `ghcr.io-renovatebot-renovate-44.x`: `automerge=true labels=` → `automerge=false labels=needs-review`;
- `quay.io-oauth2-proxy-oauth2-proxy-7.x`: the same change, and every upgrade in the branch
resolves `false`, the `catalog/render.py` one included.
The other 27 rows are byte-identical.
## What I did NOT verify
- **The three GitHub-hosted branches** in run 357 (`pin-dependencies`, `kubevirt-cdi`,
`intel-intel-device-plugins-for-kubernetes-0.x`) are not in the harness table: my local run has
no github.com token. Neither rule's package names can match them.
- **A live Renovate run with this config.** The next debug-level dispatch should show
`needs-review` on both branches.
- **The oauth2-proxy refresh path itself** remains untested. Exercising it on one app is the
review the label asks for.
@@ -0,0 +1,128 @@
---
date: 2026-10-30
branch: fix/renovate-run-hygiene
title: Renovate's first completed dry runs, audited; it would have opened red PRs for every app and missed the databases. Config fixed
---
## What changed
**`renovate.json5` only.** Each change carries a comment quoting the measurement behind it.
1. **Three new regex managers, so updates edit the SOURCE.**
- `catalog/*.yaml` `source.image`.
- `catalog/render.py` `OAUTH2_PROXY_IMAGE`.
- CNPG `imageName:` under `platform/` and `apps/`.
The first two match the rendered line's depName, so the catalog edit and the generated
`apps/wave-*` edit land in **one** branch.
2. **`allowedVersions` mirroring each ServiceDefinition's `update.range`:**
- gitea/gitea `<2.0.0`
- nextcloud `<32.0.0`
- qbittorrent `<6.0.0`
- radarr `<6.0.0`
- sonarr `<5.0.0`
- semaphore `<3.0.0`
Plus CNPG postgresql `<17.0.0`, because a Postgres major is a migration, not a bump.
3. **The blast-radius never-automerge list gains** `gitea/gitea`, `gitea/act_runner` and
`ghcr.io/cloudnative-pg/postgresql`.
4. **HelmRelease range widening** (`matchManagers: flux`, ranged currentValue) is never
auto-merged and is labelled `range-widen`.
5. **Majors need a Dependency Dashboard tick** (`dependencyDashboardApproval`) before a PR opens.
6. **`flux` manager docker deps are disabled.** These are duplicates of `kubernetes` manager
extractions.
7. **`velero/velero-plugin-for-aws` uses `semver` versioning**, so its RC pin can reach a stable
release.
8. **`python` minors are not auto-merged.**
9. **Two false comments are corrected.**
- Ranges "cap Renovate at patches": false, Renovate widens them.
- `nextcloud:31-apache` and `docker:27-dind` "cannot be maintained": false, they were.
PR #85 is merged, so nothing here overlaps an open branch.
### The audit: dispatch runs 353 (07:12 UTC) and 354 (07:23 UTC), on 593d0fa
Both runs ended `success`, Renovate `"result": "done"`, `exitCode 0`. Both were at `info` level, so
I reproduced the per-dependency detail with a debug-level local dry run of the same commit (see
below).
The runs were inside the 03:00–06:00 America/New_York window, so branches were processed:
- run 353: 37 "Would commit" branches;
- run 354: 40, because the operator had added `RENOVATE_GITHUB_COM_TOKEN` 9 s before it.
Gitea's router log for the act-runner pod during both runs shows 317 2xx responses. The only
non-2xx were all expected:
- `/v2/` 401: the registry challenge;
- `/admin/orgs` 403: the #85 scope probe, by design;
- 6× `HEAD …/manifests/sha256:000…` 404: the placeholder digests.
| # | Class | Count | Cause | Severity | Fix |
|---|---|---|---|---|---|
| 1 | App-image PRs edit only generated `apps/wave-*` | 9 branches | A ServiceDefinition has no `apiVersion`, so the `kubernetes` manager extracts 0 deps from `catalog/`. The oauth2-proxy sidecar is a Python constant (`catalog/render.py:132`) | **Real problem.** Every such PR fails `ci/render-golden.sh` (reproduced: rc 1 "GOLDEN DRIFT"), stays red and holds a PR slot | git (1) |
| 2 | CNPG `imageName` untracked | 3 Clusters | The `kubernetes` manager reads `image:` only. The one tracked postgres line was the grant Job (`nextcloud-db.yaml:303`, "keep in step with spec.imageName") | **Real problem.** A real run bumps the Job and leaves the databases behind | git (1) |
| 3 | Bogus or out-of-policy majors | 5 branches: gitea 28.2.0, qbittorrent 20.04.1, radarr 6.x, nextcloud 35, postgresql 18.6 | Odd legacy tags, plus `update.range` in `catalog/` not being read by Renovate | Risk if run for real: unmergeable PRs, which hold slots | git (2) |
| 4 | Auto-merge of the merge gate's own host | gitea 1.24.3→1.27.3, act_runner 0.2.11→0.6.1, both "minor" | Not in the blast-radius list. A 0.x minor is breaking by semver | **Risk if run for real** | git (3) |
| 5 | Range widening auto-merged | external-dns, headlamp (minor); longhorn (blast radius); kube-prometheus-stack (major) | Renovate widens `>=a <b`. The config's comment claimed the opposite | **Risk if run for real:** silently lets Flux adopt new minors | git (4, 9) |
| 6 | Majors hold PR slots | 10 majors in run 354 against `prConcurrentLimit: 5` | Majors never auto-merge, so they stay open | Risk: starves auto-mergeable PRs | git (5) |
| 7 | `Cannot find replaceString … alpine:3.22` (INFO) | 1 per run | The same HelmRelease `image:` line is extracted by `flux` and `kubernetes` (also the velero plugin) | Cosmetic. The branch is still right | git (6) |
| 8 | velero-plugin-for-aws stuck on `v1.14.3-rc.2` | 1 dep, 0 updates | Docker versioning treats `-rc.2` as a suffix, so stable `v1.14.3` and `v1.14.4` never qualify | **Real problem** (silent) | git (7) |
| 9 | python 3.13→3.15 as auto-mergeable "minor" | 2 files | Language runtime minor | Risk if run for real | git (8) |
| 10 | `WARN GitHub token is required` | run 353: 5 packages, 17 deps | No github.com token | Real (they were unmaintained) | **operator, done:** run 354 has no WARN and adds `pin-dependencies`, `kubevirt-cdi`, `actions-checkout-7.x`, `major-github-artifact-actions` |
| 11 | Floating or untagged images (`invalid-value`) | 4: jackett, plex `latest`; pihole, keycloak no tag | No version to compare | Real, already documented | none in git. Pinning by hand is an operator/PM decision |
| 12 | `runs-on: ubuntu-latest` `invalid-version` | 11 | The github-actions manager extracts runner labels | Cosmetic, debug-only | none |
| 13 | `Docker Manifest is unknown` (debug) | 3 | HEAD on the all-zero placeholder digests | Expected. Clears when the own-image digest PRs merge | none |
| 14 | `Docker: error fetching data from DockerHub` 403 (debug) | 5 | Hub refuses `page=11`. Renovate already has the tags | Cosmetic. Updates were still found | none |
| 15 | `Config migration necessary` | 1 | Top-level `"docker": {"enabled": true}` | Cosmetic, pre-existing | none (as before) |
**Checked and fine:**
- The 3 own-image digest updates were found in both runs. All 4 `# renovate-digest:` markers parse.
- No marker failed to parse.
- No package file is under `conformance/runs` or `tests`, nor is `DECISIONS-LOG.md`, `decisions/` or
any `*.sops.yaml` (77 package files checked).
- `kubevirt-cdi` grouping works.
- The schedule window behaved as designed.
- Vulnerability alerts: none in either log.
## What I verified
- I read both job logs in full (132 and 129 lines), and the router log for 10.0.0.38 during both
runs.
- **`renovate-config-validator` on 44.167.0**: `Config validated successfully`. The migration diff
is only the pre-existing `docker` block.
- **Local dry runs.** Pinned image, `--platform=local`, debug, origin/main snapshot. "Before" is
593d0fa and "after" is this config; the GitHub-hosted deps were skipped in both.
- **Extraction:** `regex` went from 6 files / 7 deps to **19 files / 20 deps**. Every other
manager is unchanged: flux 15, github-actions 24, kubernetes 131, kustomize 2.
- **Branches:** 33 before, **29 after**. Removed: gitea-28.x, qbittorrent-20.x, radarr-6.x,
nextcloud-35.x and postgresql-18.x. Added: velero `v1.14.3-rc.2 → v1.14.4` (patch).
- **Gitea, qbittorrent, radarr, sonarr, semaphore and seerr branches** now each carry
`catalog/<svc>.yaml` + `apps/wave-*/<svc>.yaml`.
- **The oauth2-proxy branch** carries `catalog/render.py` plus the 5 rendered apps and
`platform/crafty`.
- **The postgresql-16.x branch** carries all three Clusters.
- The 2 flux docker duplicates report `disabled`.
- **render==golden holds for the new branch shape.**
- In the toolbox, I applied the gitea branch edit (catalog + apps) and the oauth2-proxy branch
edit (`render.py` constant + 5 apps) textually. `./ci/render-golden.sh` reported
`all 10 onboarded service golden(s) reproduce`, rc 0.
- Negative control, the old shape with only `apps/wave-0/gitea.yaml` bumped: rc 1,
`GOLDEN DRIFT`.
- Both edits were reverted afterwards.
## What I did NOT verify
- **The effect of the automerge, label and dashboard-approval rules (3, 4, 5, 8). UNVERIFIED in a
run.** `--platform=local` stops before branch processing, so I saw only which updates exist, not
their merged flags. The matchers are standard (`matchPackageNames`, `matchManagers`,
`matchCurrentValue`, `matchUpdateTypes`). The next dispatch's debug log shows them per branch.
- **`allowedVersions` under docker versioning** used Renovate's "Falling back to npm semver
syntax" path (16 debug lines). That it filters is shown by the five removed branches.
- **render==golden for the other app branches** (qbittorrent, radarr, sonarr, semaphore, seerr). I
proved it only for gitea and oauth2-proxy. They have the same shape: one `source.image` line ↔
one rendered `image:` line.
- **The `allowedVersions` rules duplicate `catalog/*/update.range`** and can drift from it. Nothing
checks them against each other. A lint comparing the two is the obvious follow-up.
- **Any real (non-dry) run.** None has happened. PR creation, labels, auto-merge through Gitea's
API and the Dependency Dashboard issue are all unobserved.
- **Sensitive path?** `renovate.json5` is not in `infra/gitea/approval-policy.json`, as far as I
know. CI's `approval-policy` result on the PR is the measurement.
@@ -0,0 +1,113 @@
---
date: 2026-10-30
branch: feat/renovate-track-keycloak-operator
title: Renovate tracks the Keycloak operator (the real Keycloak version), never auto-merged; the catalog's phantom image is pinned as documentation and disabled
---
## What changed
- **`platform/keycloak/kustomization.yaml`**: each of the three `keycloak-k8s-resources/26.0.6`
release URLs (two CRDs and `kubernetes.yml`) now has a
`# renovate: datasource=github-tags depName=keycloak/keycloak-k8s-resources` marker on the line
above it. That is the format the existing `custom.regex` marker manager parses (the kubevirt
pattern). A comment explains that these URLs are the Keycloak version. The `Keycloak` CR has no
`spec.image`, so the operator's `RELATED_IMAGE_KEYCLOAK` picks the server image.
- **`renovate.json5`** has two new packageRules:
- **`keycloak/keycloak-k8s-resources`**: `groupName: keycloak-operator`, `automerge: false`,
`addLabels: [needs-review, blast-radius]`. A comment explains why. The operator, the CRDs and
the server are released in lockstep. The IdP gates SSO for every app and for kubectl. And
`passkey-reconciler.yaml` encodes Keycloak 26.0.6 Admin API shapes that the static gate never
exercises. Majors still go through the existing dashboard-approval rule.
- **`quay.io/keycloak/keycloak`**: `enabled: false`. Its only occurrences are in files that
deploy nothing.
The "STILL CANNOT FIX" comment also gains a one-line correction for keycloak.
- **`catalog/keycloak.yaml`**: `source.image` changed from `quay.io/keycloak/keycloak` (no tag) to
`quay.io/keycloak/keycloak:26.0.6`. A comment says the image is DOCUMENTATION-ONLY and that the
operator chooses the real one. `apps/wave-1/keycloak.yaml` was re-rendered, which changes one
line.
- **`platform/keycloak/README.md`**:
- Corrects the false claim "Renovate maintains the version". Until now Renovate could not see
the version.
- Adds a new section, **"Upgrading Keycloak: the operator IS the version"**. It lists the 26.0.6
assumptions in the passkey reconciler to diff against a new tag, and the post-merge checks.
**The phantom: pin and disable, not delete.** `apps/wave-1/keycloak.yaml` is not listed in
`apps/wave-1/kustomization.yaml`, and render-golden excludes it (`RENDER_GOLDEN_NOT_ONBOARDED`).
Deleting it would still not be a no-op:
- It is the fixture for the keycloak cases in `apps/wave-1/tests/app-slis.test.yaml` (the
StatefulSet-based `keycloak-down` rule). Those cases are discovered by the
every-PrometheusRule-in-apps/wave-1 convention.
- Removing it means moving that rule and its tests to `platform/keycloak`. That is a separate
observability change, not a Renovate one.
Pinning plus `enabled: false` changes one line in a file nothing applies. It cannot affect the
cluster, and render-golden stays green.
## What I verified
- **Live state, prod, read-only kubectl, 2026-10-30.**
- Keycloak CR `keycloak` has an empty `spec.image`.
- The operator Deployment runs `quay.io/keycloak/keycloak-operator:26.0.6`, imageID
`sha256:8e3a1a56346f…`, with `RELATED_IMAGE_KEYCLOAK=quay.io/keycloak/keycloak:26.0.6`.
- `keycloak-0` and `keycloak-1` both run `quay.io/keycloak/keycloak:26.0.6`, imageID
`sha256:a93d22e13b86…`.
- There is no PrometheusRule containing "keycloak" in any namespace. This confirms the phantom
deploys nothing, including its `keycloak-down` rule (see the next section).
- **`renovate-config-validator`** on the pinned `ghcr.io/renovatebot/renovate:44.167.0`:
`Config validated successfully`. The only migration note is the pre-existing `docker` block.
- **Local dry run** (`RENOVATE_PLATFORM=local`, `RENOVATE_DRY_RUN=full`, debug, the same pinned
image, this worktree, with a GitHub token passed by environment variable; the token string
occurs 0 times in the log):
- The regex manager went to 21 files / 24 deps.
- `keycloak/keycloak-k8s-resources` was extracted three times from
`platform/keycloak/kustomization.yaml`, each at `currentValue 26.0.6`, datasource
`github-tags`, versioning `semver`.
- Each extraction has one update, `26.8.1`, updateType `minor`, and all three share **one**
`branchName: renovate/keycloak-operator`.
- `quay.io/keycloak/keycloak` was extracted from `catalog/keycloak.yaml` (regex) and from
`apps/wave-1/keycloak.yaml` (kubernetes) at 26.0.6, with `skipReason: disabled` and no
updates.
- **Rule effects.** `--platform=local` does not print each branch's merged flags. So I ran
Renovate's own `applyPackageRules` (from `dist/util/package-rules` in the same 44.167.0 image)
over this `renovate.json5` for each case:
| Update | Result |
|---|---|
| operator minor 26.0.6 → 26.8.1 | `automerge:false`, `groupName:keycloak-operator`, labels `dependencies, automated-update, needs-review, blast-radius` |
| operator patch | same as the minor |
| operator major | `automerge:false`, `dependencyDashboardApproval:true`, labels add `breaking` |
| `quay.io/keycloak/keycloak`, catalog and rendered | `enabled:false` |
| control: sonarr patch | `automerge:true`, so the rule did not disable auto-merge globally |
- **render-golden, host:** `render.py --selftest` passed, and `all 10 onboarded service golden(s)
reproduce`. Before the pin, the committed phantom was byte-identical to the canonical render. I
re-rendered it after the pin.
- **Toolbox gate** (commit 24db269, worktree with the ENGINE shim mounting `.git` and the spec
repo, `DEV_KUBECONFIG=/dev/null`): **rc 3**.
- The only stage that did not run is **`gitea-settings`**.
- spec-immutability, decisions-log, lint, l0, render-golden, l1 and approval-policy all passed.
- L2/L3 `conformance` scaffold-skipped, as expected.
- **Not green.**
- **Sensitive paths:** none touched (checked against `infra/gitea/approval-policy.json`), so no
`/approve-override` is needed.
## What I did NOT verify
- **A real Renovate run.** No PR was opened by Renovate. The labels and `automerge:false` are
proven by Renovate's own matcher, not by an opened PR.
- **That 26.8.1 is safe to adopt.** I did not diff 26.0.6 against 26.8.1. That includes the
reconciler's assumptions: `recurseExecutions` displayName, `updateExecutions`, the
`RpEntityName` guard, `requiredActions` REPLACE, and config aliases. The README section lists
them for whoever reviews the first bump PR. It also says to take or confirm a fresh CNPG backup
first, because a server minor may migrate the schema.
- **FINDING, not fixed: Keycloak has no deployed "IdP down" alert.** The `keycloak-down` SLI rule
exists only inside the undeployed `apps/wave-1/keycloak.yaml`. promtool tests it, but it is not
on the cluster: there is no keycloak PrometheusRule live. Separately, because that file exists,
`render.py --emit-waves` would treat keycloak as onboarded. It would then add a Deployment named
`keycloak` beside the operator's StatefulSet (the known `--emit-waves` hazard). The proper fix is
a separate PR: move the rule and its tests into `platform/keycloak`, then delete the phantom.
- **The catalog tag can drift.** Nothing ties `catalog/keycloak.yaml`'s documentation tag to the
operator URLs. It must be updated by hand after an operator bump, and the README says so.
- **Concurrent branches** `fix/renovate-hold-auth-and-self` and `feat/pin-pihole-jackett-plex`
also edit `renovate.json5`. Neither had merged when I checked. A rebase may be needed.
+2 -1
View File
@@ -26,7 +26,8 @@ The fix is the obvious one for concurrent appenders: **stop sharing a file**. Ea
handoff is its own file. Two agents writing handoffs touch disjoint paths, so there is
nothing for git to merge and nothing to conflict. This scales to any number of parallel
branches with zero coordination — which is the point, since the agents are deliberately
isolated from each other in separate worktrees and cannot coordinate.
isolated from each other in separate worktrees (required by `CLAUDE.md` §0) and cannot
coordinate.
There is deliberately **no index file** and no counter. An index would be a shared
mutable file — exactly the thing that just failed — and a sequence number would have
+222 -116
View File
@@ -1,61 +1,43 @@
# Bulk NFS storage — the media library and the legacy Nextcloud archive
The operator-facing companion to the `class: bulk` storage entries in `catalog/{plex,sonarr,radarr,nextcloud}.yaml`.
Everything here was **measured** on the storage host on 2026-09-07, over read-only SSH; nothing is
assumed. It resolves the long-standing **OQ-2** stub (`platform/longhorn/storageclasses.yaml`) for the
The operator-facing companion to the `class: bulk` storage entries in
`catalog/{plex,sonarr,radarr,qbittorrent,nextcloud}.yaml`.
**Rewritten 2026-10-07 for the move off Proxmox onto a standalone TrueNAS at 192.168.2.30.** The
layout (§2), the mount design (§3, §4) and the uid model (§6) are unchanged by the move and were
measured on the old host on 2026-09-07. Everything about the storage host itself — §1, §5, §10 —
was re-measured on the NAS on 2026-10-07. Nothing here is assumed. It resolves the long-standing
**OQ-2** stub (`platform/longhorn/storageclasses.yaml`) for the
case that actually exists here — attaching datasets that already hold data — and leaves dynamic bulk
provisioning unimplemented, because nothing needs it.
---
## 1. The storage host, and why prod cannot reach it
## 1. The storage host
The bulk data lives on the **Proxmox host's ZFS pool**. That host has exactly one interface:
The bulk data lives on a **standalone TrueNAS** (Community Edition) at **192.168.2.30** — the same
`192.168.2.0/24` as prod's nodes (`192.168.2.10/.11/.12`), so it is reached directly, with no NAT
and no routing decision.
```
vmbr0 192.168.1.9/24 default via 192.168.1.1 (pfSense LAN)
```
| | nodes | reaches 192.168.1.9? |
|---|---|---|
| **dev** | 192.168.1.40 / .41 / .42 | **Yes** — same L2 segment, and it already holds an NFS export from this host (`/mnt/Storage/k8s-volumes`, in `/etc/exports`) |
| **prod** | 192.168.2.10 / .11 / .12 | **No** — 192.168.2.0/24 is pfSense's **WAN**. Ports 22 and 8006 answer only because pfSense port-forwards them via 192.168.2.102. 2049 and 111 do not. |
Opening the storage path for prod is a **pending operator decision**. Its two candidate outcomes give
different values for the `BULK_NFS_SERVER` cluster-var:
| outcome | `BULK_NFS_SERVER` for prod |
|---|---|
| port-forward `192.168.2.102:2049` → `192.168.1.9:2049` | `192.168.2.102` |
| a WAN→LAN route to 192.168.1.0/24 | `192.168.1.9` |
Until it lands, `clusters/prod` holds `TBD-PROD-BULK-NFS-SERVER`. **See §7 for why that placeholder
behaves differently from the repo's other ones.**
**This section used to be the hard part of this page.** The datasets were on the Proxmox host, whose
only interface was `vmbr0 192.168.1.9/24` on pfSense's **LAN**, while prod sits on pfSense's **WAN**.
tcp/2049 did not traverse that, so prod mounted through a DNAT at `192.168.2.102`, and which address
belonged in `BULK_NFS_SERVER` depended on an undecided operator choice. Both pools were physically
moved on 2026-10-07 (`docs/plans/proxmox-to-n5-air-migration.md`, Phase C/D) and all of that is
simply gone. Measured 2026-10-07: **192.168.2.102:2049 no longer answers; 192.168.2.30:2049 and
:111 do.**
### It only needs ONE port
The PVs mount `nfsvers=4.1`. **NFSv4 carries mount and lock in-protocol**, so the only thing that
must be reachable is **tcp/2049** — no rpcbind/111, no mountd, no statd. NFSv3 would have needed
four ports, three of them on ephemeral numbers, which is a materially worse firewall story. The
server advertises `+3 +4 +4.1 +4.2` (`/proc/fs/nfsd/versions`), so v4.1 is available and is the
conservative floor.
four ports, three of them on ephemeral numbers. The NAS advertises `+3 +4 +4.1 +4.2`
(`/proc/fs/nfsd/versions`, measured 2026-10-07), so 4.1 is available and is the conservative floor.
### The export's client list is the SAME under both outcomes — measured, not assumed
**pfSense DNATs the existing port-forward WITHOUT source NAT.** Connecting from this workstation
(192.168.2.132) to `192.168.2.102:22`, the storage host logged the peer as `192.168.2.132`:
```
SSH_CONNECTION=192.168.2.132 39768 192.168.1.9 22
ss -tn -> 192.168.1.9:22 192.168.2.132:39768
```
The original WAN-side source address survives the translation (return traffic finds its way back via
the host's default route, 192.168.1.1). So under **either** outcome the NFS server will see prod's
**real** node addresses — 192.168.2.10/.11/.12 — and the `sharenfs` change in §5 is the same either
way. **It does not have to wait for the routing decision.**
---
**NFSv4 is not on by default and its absence does not look like a storage problem.** TrueNAS ships
NFSv3-only until NFSv4 is added to *Services → NFS → Enabled Protocols*. Without it the mount never
completes and the pods sit in `ContainerCreating` — no permission error, nothing in the app logs,
just no volume.
## 2. The layout, as found
@@ -107,16 +89,18 @@ why it is mounted read-only; see §6.
| plex | `/mnt/Storage/plex` | `/media` | — | **ro** | ReadOnlyMany |
| sonarr | `/mnt/Storage/plex` | `/media` | — | rw | ReadWriteMany |
| radarr | `/mnt/Storage/plex` | `/media` | — | rw | ReadWriteMany |
| qbittorrent | `/mnt/Storage/plex` | `/downloads` | `downloads` | rw | ReadWriteMany |
| nextcloud | `/mnt/Storage/nextcloud` | `/mnt/legacy-nextcloud` | `nextcloud` | **ro** | ReadOnlyMany |
In-app paths that follow: Plex libraries at `/media/movies`, `/media/tv`, `/media/photos`; Sonarr
Root Folder `/media/tv`; Radarr Root Folder `/media/movies`; both importing from
`/media/downloads/complete/{tv-sonarr,radarr}`.
**All three media consumers use the identical mountPath on purpose.** When qbittorrent is eventually
given the same export (it is not in this change), the arrs and the download client will already agree
on absolute paths, which is the second precondition for hardlinked imports — otherwise every import
needs a Remote Path Mapping and quietly falls back to copying when one is missing.
**The three library consumers use the identical mountPath on purpose**, and qbittorrent has since
been given the same export (narrowed by `subPath: downloads`, presented at `/downloads` to match its
existing `Session\DefaultSavePath`). The arrs and the download client therefore agree on absolute
paths, which is the second precondition for hardlinked imports — otherwise every import needs a
Remote Path Mapping and quietly falls back to copying when one is missing.
**`/media` and not `/data`, and that is not cosmetic.** The arrs' Longhorn config PVC renders at the
renderer default `/data/config`. A media mount at `/data` would be mounted **over** it and mask the
@@ -147,62 +131,123 @@ Narrowing that would cost hardlinks, which is the worse trade.
---
## 5. The export change the operator must apply — STRICTLY ADDITIVE
## 5. The exports, as configured on TrueNAS — and the settings that decide permissions
**Do not apply this from the repo.** It is an operator step on the storage host, recorded here so the
exact value is reviewable. The existing consumers **must keep working**: 192.168.1.6, 10.123.1.10 and
192.168.1.18 on the media tree, and 192.168.1.6 and 192.168.1.5 on the Nextcloud dataset, are the
live non-k3s prod stack.
**Do not apply this from the repo.** It is operator configuration on the NAS, recorded here so the
exact values are reviewable. Everything below was **measured on 192.168.2.30 on 2026-10-07**, after
the move.
Current values (`zfs get sharenfs Storage`):
### The exports
```
Storage/plex rw=@192.168.1.6:@10.123.1.10:@192.168.1.18,no_subtree_check,no_root_squash
Storage/nextcloud rw=@192.168.1.6:@192.168.1.5,no_subtree_check,no_root_squash
/mnt/Storage/plex 192.168.2.10 192.168.2.11 192.168.2.12
(sync,wdelay,hide,no_subtree_check,sec=sys,rw,secure,root_squash,no_all_squash)
/mnt/Storage/nextcloud 192.168.2.10 192.168.2.11 192.168.2.12
(sync,wdelay,hide,no_subtree_check,sec=sys,ro,secure,root_squash,no_all_squash)
```
### `Storage/plex` — append the six k3s node addresses to the existing `rw=` list
Per-node addresses rather than `@192.168.2.0/24`, following the precedent of the old host. A `/24`
would work and would survive adding a node; it also grants the whole subnet.
**All three nodes must appear on BOTH shares.** Any media pod can be scheduled on any node, so a
missing node is a latent failure, not an immediate one: it surfaces the first time a pod reschedules
there, as `access denied by server while mounting`, with the cause weeks stale. One was caught
exactly this way during setup — the plex share listed `192.168.2.13`, an address no node holds, and
so was missing `192.168.2.12` (k3s-prod-3). Nothing was failing at the time.
### The option flags ARE the permission contract
| flag | why it matters here |
|---|---|
| **`no_all_squash`** | The one the whole model rests on. Client uids pass through untouched, so the arrs' `PUID=1000` arrives as the owner of a `0755 1000:3000` tree. In the UI this is **Mapall User/Group left EMPTY** — setting either squashes every client to one identity and erases the reader/writer distinction entirely. |
| **`sec=sys`** | AUTH_SYS. Numeric uid/gid, not Kerberos principals. §6 is only true because of this. |
| **`root_squash`** | Maproot left empty. The Proxmox export carried `no_root_squash`; **nothing here needs it** — every write to the tree happens after the LSIO drop to uid 1000, and the images only chown their Longhorn `/config`. This is a deliberate tightening over the old export, not parity. |
| **`rw` / `ro`** | The archive's read-only posture is **server-enforced**, as it was before. The media tree cannot get the same treatment — see below. |
| **`secure`** | Reserved source ports required; "Allow non-root mount" off. The kubelet mounts as root from a reserved port and does not need the exception. |
**Plex's read-only posture is still a CLIENT-side guarantee.** Plex is ro and the arrs are rw, but
all four can land on any node, so the server sees the same three source addresses for all of them
and cannot distinguish the reader from the writers. `spec.nfs.readOnly: true` on `plex-media` plus
the volumeMount flag is the whole enforcement. Unchanged by the move; an honest limitation, not an
oversight. If it ever needs to be server-enforced, the lever is a dedicated node pool for Plex.
### Service settings that are NOT obvious from the export list
- **Enabled Protocols must include NFSv4** (above).
- **Require Kerberos for NFSv4: off.** The numeric AUTH_SYS pass-through is the model.
- **Manage Groups Server-side: off.** This is `rpc.mountd --manage-gids`: the server *discards the
client's supplied group list* and looks that uid's groups up in TrueNAS's own user database
instead. With no local uid 1000 defined, the arrs' `PGID=3000` would simply vanish. Writes would
survive anyway — uid 1000 **owns** the tree, so the owner bits grant access without the group —
but it is a free way to lose group semantics.
- **NFSv4 DNS Domain: blank.** It only feeds `idmapd.conf`, which numeric mapping bypasses.
- **Bind IP 192.168.2.30** means loopback does not answer: check with `showmount -e 192.168.2.30`,
not `localhost`.
There is **no** "NFSv3 ownership model for NFSv4" control on current TrueNAS — it was an older
TrueNAS/CORE option, and no replacement is needed: on a Linux client against a Linux server over
AUTH_SYS, both the `nfs` and `nfsd` modules default to `nfs4_disable_idmapping=Y`, so NFSv4 carries
raw numeric ids rather than `user@domain` principals. §9's `ls -n` probe is how you confirm it.
### The ZFS `sharenfs` properties must be CLEARED, not edited
The pools arrived with the old host's exports still set as dataset properties:
```
Storage/plex rw=@192.168.1.6:@10.123.1.10:@192.168.1.18:@192.168.2.10:@192.168.2.11:@192.168.2.12,no_subtree_check,no_root_squash
Storage/nextcloud rw=@192.168.1.6:@192.168.1.5,ro=@192.168.2.10:@192.168.2.11:@192.168.2.12,no_subtree_check,no_root_squash
Storage/docker-volumes rw=@192.168.1.6:@192.168.1.5:@192.168.1.10:@192.168.1.18,no_subtree_check,no_root_squash
```
TrueNAS generates `/etc/exports` from its own middleware database and will fight a property it did
not set — the failure mode is two differently-configured exports of one path, with no indication
which is in force. Cleared 2026-10-07:
```sh
zfs set sharenfs='rw=@192.168.1.6:@10.123.1.10:@192.168.1.18:@192.168.1.40:@192.168.1.41:@192.168.1.42:@192.168.2.10:@192.168.2.11:@192.168.2.12,no_subtree_check,no_root_squash' Storage/plex
zfs inherit sharenfs Storage/plex
zfs inherit sharenfs Storage/nextcloud
zfs inherit sharenfs Storage/docker-volumes
```
Every pre-existing host is preserved verbatim and no option changes; only clients are added.
`Storage` is `off`, so each resolves to `off`.
### `Storage/nextcloud` — add the k3s nodes to a **`ro=`** list, not to `rw=`
### Do NOT touch the dataset's permissions or ACLs
```sh
zfs set sharenfs='rw=@192.168.1.6:@192.168.1.5,ro=@192.168.1.40:@192.168.1.41:@192.168.1.42:@192.168.2.10:@192.168.2.11:@192.168.2.12,no_subtree_check,no_root_squash' Storage/nextcloud
```
The tree's ownership **is** the access story (§6), and TrueNAS offers two ways to destroy it
irreversibly across 8.33 T.
This is the one place read-only can be enforced **server-side**, and it is worth taking: only
Nextcloud consumes this dataset from k3s, so the export itself can refuse writes. Even a
misconfigured client cannot then damage the archive.
`Storage/plex` carries `acltype=nfsv4` (SCALE's built-in default, `SOURCE: default`) and
`aclinherit=passthrough` (inherited). Measured 2026-10-07: the directories carry **trivial ACLs
only** — `nfs4xdr_getfacl` shows just `owner@`/`group@`/`everyone@` matching the mode — so `0755
1000:3000` governs exactly as it did under Proxmox.
**The media tree cannot get the same treatment.** Plex is read-only and the arrs are read-write, but
all three may be scheduled on any node, so the server sees the same source addresses for all of
them and cannot distinguish the reader from the writers. **Plex's read-only posture is therefore a
client-side guarantee** (`spec.nfs.readOnly: true` on `plex-media`, plus the volumeMount flag) — an
honest limitation, not an oversight. If it ever needs to be server-enforced, the lever is a
dedicated node pool for Plex, which is a much larger change.
- **Stay out of the dataset's Edit Permissions / Edit ACL screen.** On an `acltype=nfsv4` dataset
that is a full ACL editor, and its presets write *real* NFSv4 ACLs, recursively if permitted.
There is no undo.
- `aclinherit=passthrough` means a single ACL written at `/mnt/Storage/plex` would be **inherited by
everything created under it afterwards** — the blast radius is the whole future library, not one
directory.
- Note GNU `ls`'s `+` marker is **not** a reliable ACL indicator here: it looks for a POSIX ACL
xattr, and this dataset stores NFSv4 ACLs elsewhere. Use `nfs4xdr_getfacl`.
Per-node addresses rather than `@192.168.2.0/24` follows the precedent already on this host
(`/etc/exports` lists the dev nodes individually, as `/32`). A `/24` would work and would survive
adding a node; it also grants the whole subnet. Per-node is the tighter default.
`xattr=on` rather than `sa` is a performance detail, not a permissions one, and changing it would
not affect existing files.
### Verifying, without changing anything
```sh
exportfs -v # the new client lines appear, existing ones unchanged
zfs get sharenfs Storage/plex Storage/nextcloud
cat /proc/fs/nfsd/versions # +4.1 must be present
exportfs -v # the two shares, three nodes each, flags as tabulated above
showmount -e 192.168.2.30 # NOT localhost -- the service is bound to one address
zfs get -r -o name,property,value,source sharenfs Storage # every row off or -
```
---
## 6. uid / gid — the failure this design exists to avoid
The export uses `sec=sys` and `no_root_squash`, so **the client's numeric uid is passed through
verbatim** and the server's on-disk ownership is the entire access story. The media tree is
The export uses `sec=sys` and `no_all_squash`, so **the client's numeric uid is passed through
verbatim** and the server's on-disk ownership is the entire access story. (It no longer carries
`no_root_squash`, which the Proxmox export did — see §5. Nothing here needs it, and the uid that
matters is 1000, not 0.) The media tree is
`0755 1000:3000` throughout (some directories `1000:1000`), so **only uid 1000 can write it**.
**`fsGroup` cannot fix this, and reaching for it is how this gets misdiagnosed.** The in-tree NFS
@@ -233,24 +278,27 @@ Nextcloud needs no uid work at all, which is one more reason its mount is read-o
---
## 7. The prod placeholder does NOT fail at apply time — read this before merging
## 7. Why this knob is unvalidated at create AND immutable at update
**The `TBD-PROD-BULK-NFS-SERVER` placeholder is gone** (2026-10-07) — prod now carries a real
address, because the NAS is on prod's own subnet and there is no longer a decision to defer. The
hazard that made it load-bearing is worth keeping on the page, because it is the half that explains
why §10 exists.
Every other `TBD-PROD-*` in `clusters/prod/kustomization.yaml` is rejected loudly by CRD validation
(Cilium, LB-IPAM, CNPG, Velero) because it is not a valid IP or URL. **This one is not.**
(Cilium, LB-IPAM, CNPG, Velero) because it is not a valid IP or URL. **This one was not.**
A PersistentVolume's `spec.nfs.server` is an **unvalidated string**. The API server accepts
`TBD-PROD-BULK-NFS-SERVER`, the PV is created, and the PVC **binds** to it — binding is pure
control-plane and never touches the server. The failure appears only when a pod mounts:
A PersistentVolume's `spec.nfs.server` is an **unvalidated string**. The API server accepted
`TBD-PROD-BULK-NFS-SERVER`, the PV was created, and the PVC **bound** to it — binding is pure
control-plane and never touches the server. The failure appeared only when a pod mounted:
```
MountVolume.SetUp failed ... Failed to resolve server TBD-PROD-BULK-NFS-SERVER
```
so **plex, sonarr, radarr and nextcloud would sit in ContainerCreating on prod.**
**Consequently: set `BULK_NFS_SERVER` in `clusters/prod/kustomization.yaml` BEFORE prod reconciles a
revision that carries these bulk volumes.** Dev renders a working value and is where these manifests
are meant to be proven first.
**The same field is immutable on UPDATE** (§10), which is the other half of the same awkwardness: a
wrong value is accepted silently at create, and then cannot be corrected in place. Together they are
why repointing this knob is a delete-and-recreate rather than a reconcile.
### The static guard this convention leans on is missing from `main` — but the gate now refuses the value anyway
@@ -287,10 +335,9 @@ Without the arm, HALF A is what holds the line, by design.
EPHEMERAL layer"). Plex was fixed; sonarr, radarr, qbittorrent and jackett were not. Fixing it
means those apps start from an empty config volume, so it belongs in its own change with the
operator present. **This change does not make it worse** — that is why the media mount is `/media`.
2. **qbittorrent has no bulk mount.** Today the arrs' import source is written by the **legacy
non-k3s** download client, which is coherent while the legacy stack stays live. Giving the k3s
qbittorrent the same export at the same `/media` path is the natural follow-up, and the paths were
chosen so it needs no Remote Path Mapping.
2. **RESOLVED — qbittorrent now has the bulk mount** (`subPath: downloads` at `/downloads`), so the
import source is written by the k3s download client rather than the legacy non-k3s one. See
`catalog/qbittorrent.yaml`.
3. **`/mnt/Storage/plex/downloads/downloads` is a symlink to `/shared/downloads`**, which is outside
the export. Over NFS it is a dangling symlink on every client. Harmless, but expect Sonarr to log
it while scanning `downloads/`.
@@ -300,10 +347,10 @@ Without the arm, HALF A is what holds the line, by design.
5. **`nconnect` was not set.** It would likely help throughput on the media tree, but it is a tuning
change that should be measured, not guessed, and it changes client behaviour under server
failure.
6. **Nothing was verified against a live cluster.** No `kubectl` context is usable from this
workstation (browser-OIDC only), and this change is manifest-authoring under an explicit
do-not-apply constraint. Every claim about the *host* is measured; every claim about *binding and
mounting* is reasoned from the manifests.
6. **Every claim about the NAS in §5 is measured (2026-10-07); the post-move MOUNT is not.** The PVs
still have to be recreated (§10) before any pod mounts 192.168.2.30, so the §9 probes are the
outstanding verification, not a formality. The pre-move equivalents did pass against the old host
on 2026-09-12.
7. **The bulk-tier requirement ID is deliberately not typed on any non-`.md` line of this change.**
`ci/touched-requirements.sh` attributes requirements from R-IDs appearing in added lines, and the
in-cluster conformance test for the bulk tier is still a gap, so typing it would select a
@@ -312,36 +359,95 @@ Without the arm, HALF A is what holds the line, by design.
---
## 9. Validating on dev, once the export is extended
## 9. Validating, after the PVs are recreated
Dev can prove all of this before prod's network path exists. Read-only checks first:
These run against **prod**; dev is decommissioned. They are the outstanding verification for the
move — nothing below has been run against 192.168.2.30. Read-only checks first:
```sh
infra/devcontainer/dev.sh run kubectl --context k3s-dev get pv
infra/devcontainer/dev.sh run kubectl --context k3s-dev get pvc -A | grep -E 'media|legacy-archive'
infra/devcontainer/dev.sh run kubectl --context k3s-dev -n sonarr get pod -o wide
./infra/devcontainer/dev.sh run bash -c 'kubectl --context k3s-prod get pv -o custom-columns=\
NAME:.metadata.name,SERVER:.spec.nfs.server,PATH:.spec.nfs.path,STATUS:.status.phase'
```
Expect **four** PVs — `plex-media`, `sonarr-media`, `radarr-media`, `nextcloud-legacy-archive` (three
of them naming the *same* export, one per namespace, which is the cross-namespace model) — each
`Bound` to the same-named PVC, with `RECLAIM POLICY Retain` and an empty `STORAGECLASS`.
Expect **five** NFS PVs — `plex-media`, `sonarr-media`, `radarr-media`, `qbittorrent-downloads`,
`nextcloud-legacy-archive` (four of them naming the *same* export, one per namespace, which is the
cross-namespace model) — each `Bound`, `RECLAIM POLICY Retain`, empty `STORAGECLASS`, and
**`SERVER 192.168.2.30`**. A PV still showing `192.168.2.102` means the recreate in §10 did not
happen; Flux will NOT have updated it in place.
Then the two things that actually matter, from inside a pod:
Then the four things that actually matter, from inside a pod:
```sh
# (a) the writer can write — this is the uid check, and it is the one that fails in practice
infra/devcontainer/dev.sh run kubectl --context k3s-dev -n sonarr exec deploy/sonarr -- \
sh -c 'id; touch /media/tv/.k3s-write-probe && rm /media/tv/.k3s-write-probe && echo WRITE-OK'
# (a) numeric ids survived the wire -- the idmapping check, new since the TrueNAS move
kubectl --context k3s-prod -n sonarr exec deploy/sonarr -c sonarr -- sh -c 'ls -n /media | head -3'
# expect uid 1000 / gid 3000 on the entries. 65534 / nobody means ids are being mapped, not
# passed through, and every import will fail EACCES while the pod still reports Ready.
# (b) hardlinks work BETWEEN the library and the download path — the root-mount check
infra/devcontainer/dev.sh run kubectl --context k3s-dev -n sonarr exec deploy/sonarr -- \
# (b) the writer can write -- the uid check, and the one that fails in practice
kubectl --context k3s-prod -n sonarr exec deploy/sonarr -c sonarr -- \
sh -c 'touch /media/tv/.k3s-write-probe && rm /media/tv/.k3s-write-probe && echo WRITE-OK'
# (c) hardlinks work BETWEEN the library and the download path -- the root-mount check
kubectl --context k3s-prod -n sonarr exec deploy/sonarr -c sonarr -- \
sh -c 'set -e; d=/media/downloads/complete/tv-sonarr/.probe; t=/media/tv/.probe-link;
echo x > "$d"; ln "$d" "$t"; ls -i "$d" "$t"; rm -f "$d" "$t"; echo HARDLINK-OK'
# (c) the reader really is read-only
infra/devcontainer/dev.sh run kubectl --context k3s-dev -n plex exec deploy/plex -- \
sh -c 'touch /media/.probe 2>&1 | head -1' # expect "Read-only file system"
# (d) the reader really is read-only
kubectl --context k3s-prod -n plex exec deploy/plex -- sh -c 'touch /media/.probe 2>&1 | head -1'
# expect "Read-only file system"
```
`(b)` printing two identical inode numbers is the proof that §4's argument holds in practice. If it
`(c)` printing two identical inode numbers is the proof that §4's argument holds in practice. If it
prints `EXDEV`, something has split the single mount back into two.
Reading the failures together is what localises the fault: **(b) EACCES with (a) showing `nobody`**
is idmapping (§5 service settings). **(b) EACCES with (a) showing `1000`** is on-disk ownership —
stop and check `ls -ldn` on the NAS before changing anything else.
---
## 10. Repointing BULK_NFS_SERVER means DELETING AND RECREATING THE PVs
**A bound PersistentVolume's NFS source is immutable.** Measured by server-side dry-run on
2026-10-07:
```
$ kubectl patch pv sonarr-media --type=json --dry-run=server \
-p '[{"op":"replace","path":"/spec/nfs/server","value":"192.168.2.30"}]'
The PersistentVolume "sonarr-media" is invalid: spec.persistentvolumesource: Forbidden:
spec.persistentvolumesource is immutable after creation
```
Note the pairing with §7: `spec.nfs.server` is **unvalidated at create** (any string is accepted and
the PVC binds) and **immutable at update**. So editing `BULK_NFS_SERVER` alone does not fail loudly
and does not work either — Flux's apply errors on the five PVs and the pods keep their previous,
now-dead mount.
This is safe to do because `persistentVolumeReclaimPolicy: Retain` means deleting a PV never touches
the data, and `catalog/render.py` emits a **pre-set `claimRef`** on each one, so a recreated PV
rebinds its own PVC with no manual step.
**Operator sequence** (mutating `kubectl` is an operator action, not an agent action):
```sh
# 1. Stop the consumers. This also releases the hung hard-mounts against the old server:
# the pods report Ready, but any real I/O on /media blocks indefinitely once 2049 stops
# answering, because the PVs mount `hard`.
for ns in plex sonarr radarr qbittorrent nextcloud; do
kubectl --context k3s-prod -n $ns scale deploy --all --replicas=0
done
# 2. Delete the five PVs. Retain + no live claim means nothing is reclaimed or erased.
kubectl --context k3s-prod delete pv plex-media sonarr-media radarr-media \
qbittorrent-downloads nextcloud-legacy-archive
# 3. Let Flux reconcile the revision carrying BULK_NFS_SERVER=192.168.2.30, which recreates them.
# Confirm .status.lastAppliedRevision matches the GitRepository artifact before continuing.
# 4. Bring the consumers back, then run every probe in §9.
```
The PVCs pass through `Lost` between steps 2 and 3; that is expected and resolves when the PV with
the matching `claimRef` reappears. If a PVC is still `Lost` after Flux reconciles, the PV name or
its `claimRef` namespace does not match — do **not** delete the PVC to "fix" it.
+269
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@@ -0,0 +1,269 @@
# Plan: an in-cluster AI Program Manager that turns Gitea issues into pull requests
**Status:** authored, gate-checked offline, **nothing deployed**. The image has never been
built or pushed; no part of this has run in the cluster.
**Owner:** Program Manager. **Serves:** R-SEC-02 (least privilege), R-GITOPS-02 (declared
delivery). **Implementation:** [`platform/pm-agent/`](../../platform/pm-agent/),
[`infra/agent/`](../../infra/agent/),
[`platform/kyverno/admission/pm-agent-job-shape.yaml`](../../platform/kyverno/admission/pm-agent-job-shape.yaml).
## What was asked for
A service running in the k3s cluster that hosts an AI agent which reads issues reported in
the Gitea project and spins up other agents to fix the codebase, following the required PR
workflow. It uses an Anthropic commercial subscription. It runs as the Program Manager
persona specified in the repository. It reacts to issue creation and to comments within
issues, and the agents it spins up are assigned the ticket, with all context and
correspondence flowing through the ticket and the PR process.
## The shape, in one paragraph
A single-replica **dispatcher** (`pm-dispatch`) polls the Gitea issue list. For any issue
whose newest activity was not its own, it hands the whole thread to the model under the
**Program Manager persona** — with no tools — and gets back one decision:
`implement` / `revise` / `comment` / `decline`. It validates that decision, creates **one
worker Job per assignment** from a committed template, and posts the PM's reply on the
issue. Each **worker** (`pm-worker`) clones the repository, checks out the branch the PM
named, re-reads the live issue thread, runs a full Claude Code session against `CLAUDE.md`,
runs `./ci/gate.sh`, and only then commits, pushes, opens the pull request and reports back
on the issue. Both halves are one image; neither takes a command-line argument.
---
## Decisions, and what was rejected
### 1. Poll the Gitea API; do not receive webhooks
Webhooks were the first design. Rejected for three reasons, in increasing order of weight:
- **Gitea's own SSRF guard.** Webhook targets are filtered by `[webhook]
ALLOWED_HOST_LIST`, whose default posture excludes private and loopback addresses — and
every in-cluster target is one. Receiving webhooks means widening a security setting on
the git host so it can call into the cluster. *(Stated as the reason for rejection, not as
a measured fact about this Gitea: nothing here queried that setting. Anyone reviving
webhooks should measure it first.)*
- **A missed delivery is gone.** A webhook that arrives during a pod restart or a Flux roll
is lost, and the issue then sits unanswered forever with nothing in any log explaining
why. A poll cannot miss an event because it does not consume events — it reads current
state.
- **It would need inbound reach.** A receiver means a Service, an ingress allow from the
`gitea` namespace, and a shared secret to verify signatures. Polling needs none: this
namespace takes **no ingress at all**, which is a materially smaller surface for a
workload whose purpose is running model-authored code.
Cost: up to `PM_POLL_INTERVAL_SECONDS` (60s) of latency. For a home platform whose
alternative is "a human gets to it this evening", that is not worth a security exception.
### 2. The issue thread is the state. There is no database
Rejected: a PVC holding a per-issue cursor, or a ConfigMap of last-seen comment IDs.
The trigger is *act iff the newest thing in this thread was not written by me*. Because the
PM always answers in the thread, acting makes the thread quiet again until somebody else
speaks. That gives three properties a cursor file does not have: it survives restart,
reschedule and rebuild with **no recovery path to get wrong**; it is **readable** by the
operator in the place they are already looking; and it creates **no R-STATE-03 obligation**,
because there is no irreplaceable state to back up.
One consequence is load-bearing and easy to get backwards: **the Job is created before the
comment is posted.** If the Job exists and the comment fails, the next cycle re-triggers,
finds the Job active, and does not duplicate it — and the worker posts its own comment when
it finishes. The other order would leave the PM's own comment as the newest in the thread
with no work running, so the trigger would never fire again and the issue would be silently
abandoned holding a promise.
A second consequence: exactly one replica, `strategy: Recreate`. Two dispatchers would both
see the same untouched thread in the same window and both act on it — two decisions, two
comments, two branches. `Recreate` extends that to rollouts, where the default
`RollingUpdate` would briefly run two.
### 3. Two roles, and the PM holds no tools
Rejected: one agent that triages *and* implements.
The PM runs `claude --print --tools ""` against a JSON schema. It cannot run a command, read
a file or reach the network; it returns one JSON object. The dispatcher then validates every
field — the action against a fixed set, the branch against `CLAUDE.md` §4's pattern, `revise`
against the branch that actually carries that issue's work, the brief against being empty —
and refuses rather than repairing (a silently rewritten branch name is a branch the PM's own
comment then misnames).
That gives three independent layers between a hostile issue comment and the cluster: the
model holds no tools, the dispatcher accepts only a validated vocabulary, and admission
constrains the one object it may create. Any one failing leaves two. It matters because the
input is text written by whoever can reach the repository, and an issue saying "ignore your
instructions and push to main" has to be ordinary data. **Nothing in this path executes
text.**
### 4. Follow-ups re-read the thread; sessions are not resumed
Rejected: persisting each assignment's session and resuming it with `--resume` when a new
comment arrives.
A `revise` worker checks out the existing branch, reads what is already on it
(`git log`/`git diff` against the base) and re-reads the **live** thread, which may have
moved on since any brief was written. That is stateless and idempotent: no transcript to
store, nothing to go stale, and the context is always current. The cost is re-reading, which
is cheap compared with a resumed session whose stored context disagrees with the thread.
### 5. The worker runs the real gate, in the real toolbox
`CLAUDE.md` §3 is explicit that only the pinned toolbox result counts — gating without
`promtool` and the rest produces a false rc 3. So the `agent-runner` image is built **FROM**
the dev toolbox rather than assembling a subset of the toolchain. The cost is size (~2 GiB
for an image that needs neither ansible nor OpenTofu); the alternative costs drift, and the
first time the two toolchains differed a worker's "gate green" would stop meaning the gate's
green while still reading as a pass.
Two stages cannot run in-cluster, and the worker's acceptance rule names them exactly:
- `spec-immutability` — **the sibling spec repo has no git remote.** It exists only on the
operator's workstation (measured: `git remote -v` in `../home-network-k3s` prints
nothing), so no in-cluster process can check it out. `CLAUDE.md` §3 already names this skip
as expected and tolerated. The worker also cannot *modify* the spec, because it is not
there.
- `gitea-settings` — needs the admin-scoped settings token, which a worker must not hold.
A worker accepts **rc 0**, or **rc 3 whose "Stages that did not run" line names nothing but
those two**. Any other skip is a refusal. The commit happens **before** the gate, because
`ci/touched-requirements.sh` derives its subset from `git diff BASE...HEAD` and the lint/L0
scans enumerate `git ls-files` — gating a dirty tree examines almost none of the change and
reports a cheerful PASS over an empty subset, which is the exact false green that script's
header records. The commit is local to an ephemeral container and is discarded with the pod
if the gate refuses it.
### 6. Subscription auth, and the two variables that must stay unset
The service authenticates with an Anthropic **subscription** (Pro/Max/Team/Enterprise) via
`CLAUDE_CODE_OAUTH_TOKEN`, minted by `claude setup-token` — a **one-year** OAuth token that
the command prints and saves nowhere.
Three facts that shape the implementation:
- **Credential precedence.** `ANTHROPIC_API_KEY` and `ANTHROPIC_AUTH_TOKEN` both rank
**above** `CLAUDE_CODE_OAUTH_TOKEN`. A stray or empty value in either silently takes over,
and the failure looks like a model outage rather than a credential mix-up. The image sets
neither; `pm-worker` unsets both before every session; the admission policy refuses a Job
that tries to set them.
- **Bare mode does not read it.** `--bare` ignores `CLAUDE_CODE_OAUTH_TOKEN`, so neither
entrypoint may use that flag however much faster it starts.
- **No expiry warning exists.** Claude Code's "login expires in 3 days" notice fires only
for an interactive login, never for this variable. When it lapses every session fails at
once. That is why the runbook carries the rotation procedure and asks for the mint date to
be recorded.
Usage counts against the subscription seat's own limits, shared with every other use of that
seat — which is the real reason `PM_MAX_ACTIVE_WORKERS` defaults to 2 rather than a RAM
calculation alone.
### 7. The admission policy is the boundary; RBAC is only its necessary half
Kubernetes places **no `use` check** on a Pod's `serviceAccountName`, so "may create Jobs in
this namespace" is "may run arbitrary code as the most privileged identity in it". The
dispatcher creates Jobs. Answered twice over:
- **Nothing to escalate to.** `pm-agent-worker` is bound to no Role, and the Job template
mounts no token (`automountServiceAccountToken: false`). The egress policy does not include
the API server either, so `kubectl` — present because the gate's toolchain needs it — is
inert.
- **The shape is constrained at the API server.** `pm-agent-job-shape` is `Enforce` with
`failurePolicy: Fail` (a boundary an overlay can downgrade to Audit is not a boundary), and
it deliberately starts with all six rules the sibling policy needed four revisions to
reach: the committed shape, exactly one container with no args, only `workspace`/`tmp`
**emptyDir** volumes, no init or ephemeral containers, only the committed env **names**, no
`envFrom`.
`platform/kyverno/tests/pm-agent/` proves each refusal offline — 28 assertions, all passing
under the pinned CLI — including the two that a careless policy admits: a second container
while `containers[0]` is perfectly compliant (a Kyverno array pattern is satisfied by one
matching element), and a volume **named** `workspace` whose source is a `hostPath`.
### 8. Not a catalog ServiceDefinition
`schemas/servicedefinition.schema.json` has `additionalProperties: false` and no way to
express a ServiceAccount, a Role, a `command`, a Job template or an admission policy. This
service is mostly those things. It is therefore hand-authored under `platform/` with its own
non-gating Flux Kustomization — the `crafty`/`headlamp`/`backup` pattern — rather than being
forced through the renderer. The one catalog change it needs is an `inClusterClients` entry
on `gitea`, so that Gitea's own default-deny admits the agent's namespace on tcp/3000; the
golden was re-rendered with the canonical command.
---
## Threat model
The input is text that anyone who can reach the repository can write. The thing acting on it
holds a git write token and can author code. So:
| concern | what answers it |
|---|---|
| a prompt-injected issue tells the PM to push to `main` | the PM holds no tools; `pm-worker` refuses `PM_BRANCH=main` before anything runs; branch protection rejects the push regardless |
| …tells it to merge, or to post `/approve-override` | the service makes no merge call and no review call; the bot account is a non-admin collaborator, so the override would be rejected by `ci/approval-policy.sh` on live permission |
| …tells it to exfiltrate a secret | egress is this Gitea and tcp/443 only; the worker's clone/push host is validated against an allowlist baked into the image; `CLAUDE.md` §6's no-plaintext-secrets rules are in both the persona and the worker rules |
| …tells the dispatcher to create a privileged Job | the dispatcher only ever renders the committed template; admission re-checks it fail-closed |
| the model returns a malformed or hostile decision | validated field by field, and refused rather than repaired |
| a worker loops or wedges | `--max-turns`, `--max-budget-usd`, `activeDeadlineSeconds: 5400`, `backoffLimit: 0` |
| a backlog stampede the moment credentials work | `PM_MAX_ACTIVE_WORKERS=2`, `PM_MAX_NEW_WORKERS_PER_CYCLE=1`, `PM_ISSUE_COOLDOWN_SECONDS=900`, and `PM_REQUIRE_LABEL` for a staged rollout |
| an unreviewed change reaches `main` | it cannot: the gate is a required status check, `block_admin_merge_override: true`, and a sensitive-path PR needs a non-author review the bot cannot supply |
| **the worker's own credentials** | **not defended.** The session shares the container and uid with the wrapper and can read its environment. Bounded by scope (one repository, write, no admin) and by egress, not by isolation |
| **`world:443` is wider than one API host** | **not defended.** Narrowing needs `toFQDNs`, which needs Cilium's DNS proxy verified first. Tracked below |
| **a `write` collaborator can merge** | **not defended by the credential.** No Gitea scope separates push-and-open-PR from merge. Bounded by the code making no merge call |
## Verified, and not
**Verified offline, with numbers:** `kyverno test platform/kyverno/tests/pm-agent` → 28/28
under the pinned CLI (the first run was 27/28 and caught a real defect: the volume rule
denied a valid `emptyDir: {}`); `check-jsonschema` on the changed ServiceDefinition; the
canonical render reproduces `apps/wave-0/gitea.yaml` with the new policy in it; `bash -n`
and `ast.parse` on the two entrypoints; `PM_SELFTEST=1 pm-dispatch` → 26 assertions, 0
failures; `infra/agent/probe-validation.sh` → **17 refusals, 0 failures** against
`pm-worker`'s input guards, including the three that matter most (a redirected git host, a
reachable-but-wrong one, and `main` as the branch). **`./ci/gate.sh` → exit 3 (UNDETERMINED), with
`gitea-settings` the one stage that did not run** — no `SETTINGS_API_TOKEN` on this
workstation — and every other stage green, `spec-immutability` included. rc 3 is not a pass.
The gate also refused an earlier revision of this change twice, both times correctly; see
the handoff entry.
**Not verified — nothing has run.** The image has never been built (so the node/npm layer,
the Claude Code install and the in-image verification are unexercised), never pushed, never
pulled. No pod has started. No issue has been triaged, no Job created, no branch pushed, no
pull request opened. The admission policy has not been tested against a live API server, the
network policies have not been exercised, and neither credential exists. Every statement
about runtime behaviour in this document is a design claim, not a measurement.
## Follow-ups, in the order they are worth doing
1. **Make the registry pullable, THEN build, push, pin.** Measured after the merge, and
neither half is declared anywhere in this repository
(`decisions/2026-10-05-pm-agent-registry-pull-prereq.md`):
(i) the nodes resolved the registry hostname to the WAN IP and failed TLS against the
router's `CN=%D` placeholder certificate — **diagnosed and fixed** by pinning
`gitea.{{ k3s_base_domain }}` to the Gateway VIP in `node_baseline_hosts_pins`, the same
pin the Keycloak issuer already carries, applied by
`ansible-playbook playbooks/node-baseline.yml -e k3s_hosts=k3s_prod --tags hosts`;
(ii) the pull is still unauthenticated and no `imagePullSecret` exists in the tree — with
the credential decision now being local Gitea accounts with PATs, that means a
`dockerconfigjson` for an account whose token carries `read:package`. Only then does the
digest matter. **Superseded 2026-10-29:** the build-and-push is no longer an operator step.
`.gitea/workflows/images.yaml` builds and verifies the image on rootless BuildKit
(`platform/buildkit/`), publishes it on a push to `main`, and Renovate opens the one
PR that replaces both placeholder digests (`decisions/2026-10-29-image-pipeline.md`). The
same two blockers sit in front of `conformance-runner`, which shares the registry path and
has never been pulled.
2. **Create the credentials** per `pm-agent-credentials.sops.yaml.example`, and **verify the
bot's permission is `write`, not `admin`** — that measurement is the control that keeps
the agent out of its own approval gate.
3. **First run with `PM_DRY_RUN=true` and `PM_REQUIRE_LABEL=agent`**, on one issue written
for the purpose. Read what the PM says before letting it write anything.
4. **Tighten the admission image pin** from the `@sha256:*` wildcard to the literal digest.
One line, reviewed.
5. **Narrow `world:443` to `toFQDNs: api.anthropic.com`** — after verifying Cilium's DNS
proxy is enabled and that the model still answers through it.
6. **Observability.** There is no metrics endpoint and no alert. The namespace's default-deny
would drop a scrape from `monitoring`, so adding metrics means adding the port *and* its
additive ingress allow — the lesson of
`decisions/2026-10-04-oauth2-sidecar-metrics-scrape-netpol.md`. A useful first alert is
"the dispatcher has not completed a cycle in 15 minutes", and note that a bare `up{}`
makes an alert self-silencing: use `up == 1`.
7. **A conformance test for the real boundary.** The L0 Kyverno suite proves the policy
refuses; nothing proves the API server does. That is an L2 test, and it needs a cluster.
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# =============================================================================
# agent-runner — the image behind the PM agent service (platform/pm-agent/).
#
# ONE image, TWO entrypoints, because they must agree on everything that matters:
#
# /usr/local/bin/pm-dispatch the long-running PROGRAM MANAGER. Polls Gitea issues,
# asks the model what to do about each thread, posts the
# answer as an issue comment, and creates a worker Job
# when the answer is "implement" or "revise".
# /usr/local/bin/pm-worker one ASSIGNMENT. Clones the repo, branches, runs a full
# Claude Code session against CLAUDE.md, runs ./ci/gate.sh,
# pushes the branch and opens the PR.
#
# WHY IT IS LAYERED ON THE DEV TOOLBOX, NOT BUILT FROM SCRATCH.
# A worker's last act before pushing is `./ci/gate.sh`, and CLAUDE.md §3 says in terms
# that only the PINNED TOOLBOX result counts — gating on a host without promtool and the
# rest produces a false rc 3. The toolbox (infra/devcontainer/) already pins that whole
# toolchain in one place. Re-listing those pins here would create a second source of truth,
# and the first time the two drifted a worker's "gate green" would stop meaning the gate's
# green while still reading as a pass. So the base IS the toolbox, and this file adds only
# what the toolbox lacks: node, the Claude Code CLI, and the two entrypoints.
#
# The cost is honest and worth naming: the toolbox is a full Fedora with ansible and
# OpenTofu in it, so this image is large (~2 GiB) for a workload that needs neither. The
# alternative — a slim image with a hand-copied subset of the toolchain — buys size and
# pays with exactly the drift the paragraph above describes. Size is the cheaper problem.
#
# THE ADMISSION CONTRACT THIS IMAGE MUST SATISFY.
# platform/kyverno/admission/pm-agent-job-shape.yaml is a fail-closed Enforce ClusterPolicy
# and it is the security boundary — not the dispatcher's RBAC. Kubernetes places no `use`
# check on a Pod's `serviceAccountName`, so any principal that can `create jobs` in the
# pm-agent namespace can create a Job with an arbitrary command; the policy is what stops
# that. Three consequences are baked in below:
#
# 1. `USER` is NUMERIC. With `runAsNonRoot: true` and no explicit `runAsUser`, the
# kubelet REJECTS an image whose USER is a name it cannot resolve to a uid
# ("container has runAsNonRoot and image has non-numeric user"). So: USER 65532:65532.
# 2. The worker pod is `readOnlyRootFilesystem: true` and the policy admits only the
# `workspace` and `tmp` volumes. So HOME and every cache path point INTO /workspace,
# never at the read-only root — that is why HOME=/workspace below, and why
# CLAUDE_CONFIG_DIR is set (Claude Code writes its config and credentials under it,
# and would otherwise try $HOME/.claude on a path that may not be writable).
# 3. `command` is pinned to one of the two absolute paths above, with NO args. Both
# scripts therefore take NO arguments at all and read their whole input from the
# environment, which they validate themselves. An argument surface on a pinned
# command is caller-supplied code; there is none here.
# =============================================================================
# The pinned dev toolbox. Passed in by build-image.sh from infra/agent/versions.env; the
# default is deliberately EMPTY so a build that forgets it fails loudly instead of
# resolving some other image named `agent-base`.
ARG AGENT_BASE_IMAGE=
# Stage `agent-runner` is the image that ships; stage `verify` (end of file) is a TEST stage built
# FROM it that only runs assertions and is never pushed. build-image.sh and the CI pipeline
# build `--target verify` to prove the image and `--target agent-runner` for the image itself.
FROM ${AGENT_BASE_IMAGE} AS agent-runner
# Re-declared AFTER the FROM: an ARG from before the first FROM is not in scope in the
# build stage, so the provenance layer below would otherwise record an empty base.
ARG AGENT_BASE_IMAGE=
ARG NODEJS_MAJOR=
ARG CLAUDE_CODE_VERSION=
ARG CLAUDE_CODE_MIN_VERSION=
ARG AGENT_MODEL=
# Nonroot uid/gid. 65532 is the distroless `nonroot` convention; the value is arbitrary
# but it MUST be numeric and non-zero — see "THE ADMISSION CONTRACT" above.
ARG RUNNER_UID=65532
ARG RUNNER_GID=65532
LABEL org.opencontainers.image.title="agent-runner" \
org.opencontainers.image.description="pinned dev toolbox + Claude Code CLI: the PM dispatcher and the per-assignment worker agent" \
org.opencontainers.image.source="https://gitea.home.keithjackson.dev/Home-Network/home-network-k3s-impl" \
org.opencontainers.image.documentation="platform/pm-agent/README.md" \
homelab.keithjackson.dev/requirements="R-SEC-02,R-GITOPS-02"
# Fail the BUILD — not a worker Job three weeks later — if a pin was not passed in.
RUN set -eux; \
: "${NODEJS_MAJOR:?pass --build-arg NODEJS_MAJOR from infra/agent/versions.env}"; \
: "${CLAUDE_CODE_VERSION:?pass --build-arg CLAUDE_CODE_VERSION from infra/agent/versions.env}"; \
: "${AGENT_MODEL:?pass --build-arg AGENT_MODEL from infra/agent/versions.env}"
# --- node + the Claude Code CLI ----------------------------------------------
# The CLI is a node program; the Fedora base carries a nodejs module stream, which is the
# reproducible way to get node inside an already-pinned base (no second distro, no curl |
# bash installer). `npm i -g` with an EXACT version — a floating tag would make the image
# non-reproducible, and the in-image autoupdater is disabled at runtime anyway.
#
# The version is then ASSERTED, twice: that the binary runs at all, and that it is at or
# above CLAUDE_CODE_MIN_VERSION. Both entrypoints pass `--permission-prompts none`, which
# requires >= 2.1.259 (docs/en/cli-reference). Below that floor the flag is unknown and an
# unattended run waits for a permission answer nobody can give — a hang, not an error, which
# is the worst failure mode available. Catch it here.
RUN set -eux; \
dnf -y module enable "nodejs:${NODEJS_MAJOR}" || true; \
dnf -y install --setopt=install_weak_deps=False nodejs npm; \
dnf clean all; \
npm install -g --no-fund --no-audit "@anthropic-ai/claude-code@${CLAUDE_CODE_VERSION}"; \
npm cache clean --force; \
claude --version; \
installed="$(claude --version | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1)"; \
[ -n "${installed}" ] || { echo "cannot read claude --version" >&2; exit 1; }; \
lowest="$(printf '%s\n%s\n' "${installed}" "${CLAUDE_CODE_MIN_VERSION}" | sort -V | head -1)"; \
[ "${lowest}" = "${CLAUDE_CODE_MIN_VERSION}" ] || { \
echo "claude ${installed} is below the ${CLAUDE_CODE_MIN_VERSION} floor needed for --permission-prompts none" >&2; \
exit 1; }
# --- the two entrypoints -----------------------------------------------------
# Copied as files at FIXED paths with NO argument surface, because the admission policy
# pins `command` and reads nothing else: a container with `command: ["/bin/sh","-c"]` and
# an arbitrary script would otherwise be admitted and run with whatever the worker holds.
# Pinning a path is only worth anything if the thing at that path cannot be replaced, so
# ownership and mode are ASSERTED below rather than assumed, and both scripts are
# syntax-checked at build time.
COPY pm-dispatch.py /usr/local/bin/pm-dispatch
COPY pm-worker /usr/local/bin/pm-worker
COPY worker-job-template.yaml /etc/pm-agent/worker-job-template.yaml
COPY pm-persona.md /etc/pm-agent/pm-persona.md
COPY worker-rules.md /etc/pm-agent/worker-rules.md
RUN set -eux; \
chown root:root /usr/local/bin/pm-dispatch /usr/local/bin/pm-worker; \
chmod 0755 /usr/local/bin/pm-dispatch /usr/local/bin/pm-worker; \
chown -R root:root /etc/pm-agent; \
chmod 0644 /etc/pm-agent/*; \
python3 -c 'import ast,sys; ast.parse(open("/usr/local/bin/pm-dispatch").read())'; \
bash -n /usr/local/bin/pm-worker; \
test "$(stat -c '%U:%G %a' /usr/local/bin/pm-worker)" = 'root:root 755'; \
test "$(stat -c '%U:%G %a' /usr/local/bin/pm-dispatch)" = 'root:root 755'
# Both entrypoints refuse arguments. Prove it here, in the layer, so a rule that pins
# `command` with no args is backed by a program that would reject them anyway.
RUN set -eux; \
/usr/local/bin/pm-worker --anything 2>&1 | grep -q 'takes no arguments'; \
/usr/local/bin/pm-dispatch --anything 2>&1 | grep -q 'takes no arguments'
# --- the nonroot account -----------------------------------------------------
# Written directly rather than pulling in shadow-utils to run useradd once. HOME is
# /workspace because at runtime that emptyDir is the only writable path.
RUN set -eux; \
echo "agent:x:${RUNNER_UID}:${RUNNER_GID}:pm agent:/workspace:/bin/bash" >> /etc/passwd; \
echo "agent:x:${RUNNER_GID}:" >> /etc/group; \
install -d -m 0775 -o "${RUNNER_UID}" -g "${RUNNER_GID}" /workspace
# SYSTEM-level git config, because HOME is an emptyDir that starts empty on every run and
# the root filesystem is read-only — a runtime `git config --global` write would fail.
#
# safe.directory=*: the clone and the checks that walk it can run under different uids in
# the same volume, and git aborts with "detected dubious ownership" on a mismatch. The repo
# is cloned fresh per run into an emptyDir, so there is no pre-existing hostile checkout
# this relaxes a check against.
#
# The identity is NOT set here. A commit's author is per-assignment (it names the issue the
# work came from), so pm-worker passes it in the environment; see the script.
RUN set -eux; \
printf '%s\n' \
'[safe]' \
' directory = *' \
'[advice]' \
' detachedHead = false' \
'[init]' \
' defaultBranch = main' \
> /etc/gitconfig; \
chmod 0644 /etc/gitconfig
# Provenance: what is actually in this layer, readable from a running pod.
RUN set -eux; \
{ echo "base=${AGENT_BASE_IMAGE}"; \
echo "nodejs=$(node --version)"; \
echo "npm=$(npm --version)"; \
echo "claude-code=$(claude --version)"; \
echo "claude-code-pin=${CLAUDE_CODE_VERSION}"; \
echo "model-default=${AGENT_MODEL}"; \
echo "python3=$(python3 --version)"; \
echo "git=$(git --version)"; \
echo "pm-dispatch=$(sha256sum /usr/local/bin/pm-dispatch | cut -d' ' -f1)"; \
echo "pm-worker=$(sha256sum /usr/local/bin/pm-worker | cut -d' ' -f1)"; \
} > /etc/agent-runner-versions; \
chmod 0444 /etc/agent-runner-versions
# Every writable path points into the `workspace` emptyDir — the root filesystem is
# read-only in the worker pod and the admission policy admits no third volume for scratch.
#
# CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC turns off auto-updates, telemetry, error
# reporting AND feature-flag fetching in one variable (docs/en/env-vars). That is not a
# privacy gesture: this namespace's egress policy allows tcp/443 to the world and
# gitea only, so a background call to any other host is a connection that hangs until it
# times out, inside a Job with a deadline. Turning the traffic off is how the deadline
# stays about the work.
#
# ANTHROPIC_API_KEY is deliberately NOT set and MUST NOT be: Claude Code's credential
# precedence puts an API key ABOVE CLAUDE_CODE_OAUTH_TOKEN, so an empty or stale key in
# the environment would silently take over from the subscription token and bill (or fail)
# somewhere else entirely. See platform/pm-agent/README.md.
ENV HOME=/workspace \
XDG_CACHE_HOME=/workspace/.cache \
XDG_CONFIG_HOME=/workspace/.config \
TMPDIR=/workspace/.tmp \
CLAUDE_CONFIG_DIR=/workspace/.claude \
CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1 \
NPM_CONFIG_CACHE=/workspace/.cache/npm \
PYTHONDONTWRITEBYTECODE=1 \
PM_AGENT_MODEL=${AGENT_MODEL} \
PM_WORKER_JOB_TEMPLATE=/etc/pm-agent/worker-job-template.yaml \
PM_PERSONA_FILE=/etc/pm-agent/pm-persona.md \
PM_WORKER_RULES_FILE=/etc/pm-agent/worker-rules.md
USER ${RUNNER_UID}:${RUNNER_GID}
WORKDIR /workspace
# No ENTRYPOINT on purpose. The admission policy pins `command` to one of the two absolute
# paths above; an ENTRYPOINT here would either be ignored or prepend something the policy
# cannot see. `bash` is the interactive fallback for a human debugging the image locally.
CMD ["/bin/bash"]
# =============================================================================
# verify — a TEST stage, never shipped. Every assertion infra/agent/build-image.sh used to make
# with `run --user 65532 --read-only --tmpfs /workspace --tmpfs /tmp --network none` now runs
# here, at build time, because CI builds on rootless BuildKit where no container runtime exists.
#
# WHAT A BUILD STEP CAN AND CANNOT REPRODUCE, stated so nobody over-reads a green verify:
# * uid 65532 ............ exact: USER is inherited from the agent-runner stage.
# * --network none ....... exact: RUN --network=none, and the first check proves it.
# * --read-only rootfs ... NOT reproducible: a RUN step always has a writable layer. It is
# APPROXIMATED by permission: as uid 65532, every path the process can
# write is inventoried and must lie under /workspace, /tmp or /var/tmp
# (the pod mounts emptyDirs on the first two; /var/tmp is read-only
# there, and TMPDIR points into /workspace so nothing should use it).
# The pod's readOnlyRootFilesystem is enforced by admission
# (platform/kyverno/admission/pm-agent-job-shape.yaml), not by this.
# * --tmpfs /workspace ... approximated by the image's own /workspace (owned 65532), which is
# what the pod's emptyDir replaces.
# The probe script is COPYed into THIS stage only, so it never ships in the image.
# =============================================================================
FROM agent-runner AS verify
COPY probe-validation.sh /opt/verify/probe-validation.sh
RUN --network=none /bin/bash -euo pipefail <<'VERIFY'
echo "--- no network (the build-time stand-in for run --network none) ---"
if getent hosts registry.npmjs.org >/dev/null 2>&1 || curl -sS --max-time 3 -o /dev/null https://1.1.1.1 2>/dev/null; then
echo "UNEXPECTED: network reachable in the verify stage"; exit 1
fi
echo " confirmed: no network"
echo "--- id ---"; id
echo "--- HOME ---"; echo "HOME=${HOME} CLAUDE_CONFIG_DIR=${CLAUDE_CONFIG_DIR}"
echo "--- baked versions ---"; cat /etc/agent-runner-versions
echo "--- the gate toolchain the worker needs (CLAUDE.md §3) ---"
for t in git python3 bash yamllint check-jsonschema kyverno promtool chainsaw flux sops age kubectl jq diff; do
if command -v "$t" >/dev/null 2>&1; then printf " ok %s\n" "$t";
else printf " MISSING %s\n" "$t"; missing=1; fi
done
[ -z "${missing:-}" ] || { echo "the gate cannot run in this image"; exit 1; }
echo "--- python can import the renderer dependency ---"
python3 -c "import yaml; print('PyYAML', yaml.__version__)"
echo "--- claude ---"; claude --version
echo "--- the two entrypoints refuse arguments ---"
# Each must REFUSE. (The old docker-run version wrote `cmd | grep -q ... && echo`, which under
# `set -e` + pipefail could never fail the script; these are real assertions.)
for e in pm-worker pm-dispatch; do
out="$(/usr/local/bin/$e --anything 2>&1 || true)"
grep -q "takes no arguments" <<<"$out" || { echo "UNEXPECTED: $e accepted an argument: $out"; exit 1; }
echo " $e: rejected"
done
echo "--- the dispatcher selftest (branch vocabulary, result envelopes, Job template, persona) ---"
PM_SELFTEST=1 /usr/local/bin/pm-dispatch
echo "--- the entrypoints are root-owned and NOT writable by the runtime uid ---"
for f in /usr/local/bin/pm-worker /usr/local/bin/pm-dispatch /etc/pm-agent/worker-job-template.yaml; do
stat -c " %n %U:%G %a" "$f"
if [ -w "$f" ]; then echo "UNEXPECTED: uid $(id -u) can write $f"; exit 1; fi
done
echo " confirmed: not writable by uid $(id -u)"
echo "--- the root filesystem is not writable by the runtime uid (expected: a failure) ---"
if touch /should-fail 2>/dev/null; then echo "UNEXPECTED: / is writable by uid $(id -u)"; exit 1; fi
echo " confirmed: / is not writable"
echo "--- everything uid $(id -u) CAN write lies under /workspace, /tmp or /var/tmp ---"
stray="$(find / -xdev \( -path /proc -o -path /sys -o -path /dev \) -prune -o -writable ! -type l -print 2>/dev/null \
| grep -vE '^/(workspace|tmp|var/tmp)(/|$)' || true)"
if [ -n "${stray}" ]; then echo "UNEXPECTED: writable outside the allowed paths:"; printf ' %s\n' ${stray} | head -20; exit 1; fi
echo " confirmed: no writable path outside /workspace, /tmp, /var/tmp"
echo "--- the two writable paths really are writable ---"
touch "${HOME}/.probe" /tmp/.probe || { echo "UNEXPECTED: ${HOME} or /tmp not writable"; exit 1; }
echo " confirmed: ${HOME} and /tmp are writable"
echo "--- uid is non-zero ---"
[ "$(id -u)" -ne 0 ] || { echo "UNEXPECTED: running as root"; exit 1; }
echo " confirmed: uid $(id -u), not root"
echo "--- no Anthropic API key is baked into the image (it would outrank the subscription token) ---"
[ -z "${ANTHROPIC_API_KEY:-}${ANTHROPIC_AUTH_TOKEN:-}" ] || { echo "UNEXPECTED: an Anthropic key is baked in"; exit 1; }
echo " confirmed: neither is set"
echo "--- pm-worker's input validation, with the interpreter and script that run in the cluster ---"
PM_WORKER_PATH=/usr/local/bin/pm-worker /bin/bash /opt/verify/probe-validation.sh
echo "AGENT-RUNNER VERIFIED"
VERIFY
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#!/usr/bin/env bash
###############################################################################
# infra/agent/build-image.sh — build the pinned `agent-runner` image and prove it works.
#
# ./build-image.sh # build the verify target, then the image
# ./build-image.sh --print-build-args # print KEY=VALUE build args (what CI consumes)
# ./build-image.sh --no-verify # build only (skip the in-image proof)
# ENGINE=docker ./build-image.sh # build with docker instead of podman
# AGENT_BASE_IMAGE=home-k3s-dev:local ./build-image.sh
# # build on a LOCAL toolbox instead of the pinned one
# # (`infra/devcontainer/dev.sh build` makes that tag)
# IMAGE_TAG=foo ./build-image.sh # override the local tag (CI uses this)
#
# THIS SCRIPT NEVER PUSHES — and nobody pushes this image from a workstation either.
# Publishing is done by CI: .gitea/workflows/images.yaml builds the SAME Containerfile on
# rootless BuildKit (platform/buildkit/), taking its build args from `--print-build-args`, and
# on a push to `main` pushes it to the Gitea registry and records the registry-returned digest
# in the job summary. Renovate then opens the pull request that moves platform/pm-agent/ onto
# that digest. This script is the LOCAL path (podman by default); its proof — the
# Containerfile's `verify` stage — is the same one CI runs.
#
# VERSIONS ARE NOT DEFINED HERE. infra/agent/versions.env holds the pins this image adds
# (base image, node, Claude Code CLI, model) and infra/devcontainer/versions.env holds the
# platform toolchain the base already carries. Nothing in this file invents a version.
#
# THE BASE. AGENT_BASE_IMAGE in versions.env is the PUBLISHED toolbox, pinned by digest and
# kept current by Renovate. An AGENT_BASE_IMAGE in the environment overrides it — CI passes
# the toolbox it built in the same run, and a developer can pass `home-k3s-dev:local`.
#
# NO `run` STEP. Verification used to `run` the image as uid 65532 with a read-only rootfs.
# CI has no container runtime (rootless BuildKit only), so the assertions moved into the
# Containerfile's `verify` stage and this script builds that target. `--print-build-args`
# prints the pins as KEY=VALUE for the CI pipeline; AGENT_BASE_IMAGE is the caller's choice.
###############################################################################
set -euo pipefail
HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO_ROOT="$(cd "${HERE}/../.." && pwd)"
ENGINE="${ENGINE:-podman}"
VERIFY=1
PRINT_ARGS=0
for arg in "$@"; do
case "$arg" in
--no-verify) VERIFY=0 ;;
--print-build-args) PRINT_ARGS=1 ;;
-h|--help) sed -n '2,/^####/p' "${BASH_SOURCE[0]}" | sed '$d' | sed 's/^# \{0,1\}//'; exit 0 ;;
*) echo "unknown argument: $arg" >&2; exit 2 ;;
esac
done
log() { printf '\n\033[1m==> %s\033[0m\n' "$*"; }
info() { printf ' %s\n' "$*"; }
die() { printf '\033[31mERROR: %s\033[0m\n' "$*" >&2; exit 1; }
# --- pins: sourced, never invented -------------------------------------------
AGENT_ENV="${HERE}/versions.env"
[ -f "${AGENT_ENV}" ] || die "missing ${AGENT_ENV} — the pins live there, not here"
BASE_OVERRIDE="${AGENT_BASE_IMAGE:-}"
TAG_OVERRIDE="${IMAGE_TAG:-}"
# shellcheck disable=SC1090
source "${AGENT_ENV}"
[ -z "${BASE_OVERRIDE}" ] || AGENT_BASE_IMAGE="${BASE_OVERRIDE}"
: "${AGENT_BASE_IMAGE:?AGENT_BASE_IMAGE not set in ${AGENT_ENV}}"
: "${NODEJS_MAJOR:?NODEJS_MAJOR not set in ${AGENT_ENV}}"
: "${CLAUDE_CODE_VERSION:?CLAUDE_CODE_VERSION not set in ${AGENT_ENV}}"
: "${CLAUDE_CODE_MIN_VERSION:?CLAUDE_CODE_MIN_VERSION not set in ${AGENT_ENV}}"
: "${AGENT_MODEL:?AGENT_MODEL not set in ${AGENT_ENV}}"
: "${AGENT_IMAGE_REPO:?AGENT_IMAGE_REPO not set in ${AGENT_ENV}}"
# THE build args, in ONE place; `--print-build-args` hands them to CI (which builds on rootless
# BuildKit and supplies its own base reference). AGENT_BASE_IMAGE is deliberately NOT in this
# list: the caller decides the base.
BUILD_ARGS=(
"NODEJS_MAJOR=${NODEJS_MAJOR}" "CLAUDE_CODE_VERSION=${CLAUDE_CODE_VERSION}"
"CLAUDE_CODE_MIN_VERSION=${CLAUDE_CODE_MIN_VERSION}" "AGENT_MODEL=${AGENT_MODEL}"
)
if [ "${PRINT_ARGS}" -eq 1 ]; then printf '%s\n' "${BUILD_ARGS[@]}"; exit 0; fi
command -v "${ENGINE}" >/dev/null 2>&1 || die "'${ENGINE}' not on PATH (set ENGINE=docker to use docker)"
# --- the base must exist, locally or in the registry ---------------------------
# Deliberately NOT built on demand. The toolbox is its own reviewed artefact with its own
# pins, and silently building it here would mean this script could change the toolchain a
# worker gates with as a side effect of rebuilding the agent image.
case "${AGENT_BASE_IMAGE}" in
*@sha256:0000000000000000000000000000000000000000000000000000000000000000)
die "AGENT_BASE_IMAGE is still the all-zero placeholder in ${AGENT_ENV}: the toolbox has
not been published yet. Either let CI publish it (.gitea/workflows/images.yaml) and
merge Renovate's digest bump, or build on a local toolbox:
${REPO_ROOT}/infra/devcontainer/dev.sh build
AGENT_BASE_IMAGE=home-k3s-dev:local $0" ;;
esac
if ! "${ENGINE}" image inspect "${AGENT_BASE_IMAGE}" >/dev/null 2>&1; then
info "base ${AGENT_BASE_IMAGE} is not local; pulling it"
"${ENGINE}" pull "${AGENT_BASE_IMAGE}" >/dev/null \
|| die "base image '${AGENT_BASE_IMAGE}' is neither local nor pullable (registry login?).
To build on a local toolbox instead:
${REPO_ROOT}/infra/devcontainer/dev.sh build
AGENT_BASE_IMAGE=home-k3s-dev:local $0"
fi
IMAGE_TAG="${TAG_OVERRIDE:-claude${CLAUDE_CODE_VERSION}-node${NODEJS_MAJOR}}"
IMAGE_REF="${AGENT_IMAGE_REPO}:${IMAGE_TAG}"
log "Building ${IMAGE_REF}"
info "engine ${ENGINE} ($(${ENGINE} --version 2>/dev/null | head -1))"
info "pins from ${AGENT_ENV}"
info " base ${AGENT_BASE_IMAGE}"
info " node ${NODEJS_MAJOR}"
info " claude ${CLAUDE_CODE_VERSION} (floor ${CLAUDE_CODE_MIN_VERSION})"
info " model ${AGENT_MODEL}"
# Provenance: CI passes the commit it is building, so a pulled image names its source tree.
LABEL_ARGS=()
[ -z "${BUILD_REVISION:-}" ] || LABEL_ARGS+=(--label "org.opencontainers.image.revision=${BUILD_REVISION}")
ARG_FLAGS=(--build-arg "AGENT_BASE_IMAGE=${AGENT_BASE_IMAGE}")
for a in "${BUILD_ARGS[@]}"; do ARG_FLAGS+=(--build-arg "$a"); done
# --- verify: the point of the whole exercise ---------------------------------
# A build that merely succeeded is not evidence this image is usable. The proof is the
# Containerfile's `verify` stage: as the NON-ROOT uid, with no network, the toolchain executes,
# both entrypoints refuse arguments, the dispatcher selftest passes, the entrypoints are not
# writable, nothing outside /workspace and /tmp is writable, and pm-worker's input guards
# (probe-validation.sh) refuse every hostile input. It is a build target rather than a
# `run` so the SAME proof runs here and in CI, where no container runtime exists — see the
# stage's header for what a build step can and cannot reproduce of the pod's shape.
if [ "${VERIFY}" -eq 1 ]; then
log "Verifying (Containerfile target: verify)"
"${ENGINE}" build "${ARG_FLAGS[@]}" --target verify --file "${HERE}/Containerfile" "${HERE}"
log "Image verified"
fi
"${ENGINE}" build "${LABEL_ARGS[@]}" "${ARG_FLAGS[@]}" --target agent-runner \
--file "${HERE}/Containerfile" --tag "${IMAGE_REF}" "${HERE}"
# --- result ------------------------------------------------------------------
# No digest is printed: a manifest digest does not exist until a registry has the manifest,
# and the only digest anything may pin is the one the REGISTRY returns. CI captures that at
# push time and prints it in the job summary (.gitea/workflows/scripts/images.sh).
SIZE="$("${ENGINE}" image inspect --format '{{.Size}}' "${IMAGE_REF}")"
log "Built ${IMAGE_REF}"
info "image id $("${ENGINE}" image inspect --format '{{.Id}}' "${IMAGE_REF}")"
info "size $(( SIZE / 1024 / 1024 )) MiB"
info "Not pushed. CI publishes this image from main (.gitea/workflows/images.yaml); see"
info "platform/pm-agent/README.md for how a new digest reaches the cluster."
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