Commit Graph
4 Commits
Author SHA1 Message Date
jakman85andClaude Opus 5 c8c1d2935d feat(dns): per-environment BASE_DOMAIN — prod moves to its own subdomain
gate / gate (push) Has been cancelled
gate / conformance (push) Has been cancelled
INCIDENT FIX. Prod's external-dns DELETED EVERY ONE OF DEV'S PUBLIC DNS RECORDS. Both
clusters ran policy: sync against the SAME Cloudflare zone with the SAME implicit
txtOwnerId (`default`), so prod believed it owned dev's records, found no matching sources,
and removed them plus their TXT registry entries. Dev recovered ~30s after prod was scaled
to 0; verified restored against Cloudflare directly (my first check went through a pfSense
override and falsely showed healthy — local resolvers are not evidence about public DNS).

THE MISS WAS MINE, and it was a failure of imagination in how I briefed every agent. I put
"never touch dev" in brief after brief and enforced it — separate kubeconfigs, verified
--limit, sha-checked dev's kubeconfig before and after. Every one of those guards held. NONE
of them covered SHARED EXTERNAL RESOURCES. Prod reconciling its OWN correctly-authored
manifests reached across a third party and destroyed dev's state. Cluster-to-cluster
isolation was verified; the dependency that mattered was cluster-to-Cloudflare.

Operator's architecture: dev -> *.dev.home.keithjackson.dev, prod ->
*.prod.home.keithjackson.dev, apex CNAME <svc>.home -> <svc>.prod.home.

PHASE 1 ONLY (this commit): prod moves to its own subdomain. DEV IS NOT MIGRATED and its
effective hostname stays home.keithjackson.dev, so dev renders byte-identically and nothing
live moves. That alone ends the collision and unblocks prod. Phase 2 (dev -> dev.home. +
apex CNAMEs) is deferred to when the operator is present: it relocates Keycloak's issuer and
12 clients' redirect URIs, forces a rolling k3s restart and kubectl SSO re-issue for every
user, and moves gitea.home. — which is BOTH the GitOps source and the current push target.

BASE_DOMAIN WAS A DEAD KNOB — it existed in cluster-vars but the status report flagged it as
referenced by nothing, because hostnames were hardcoded throughout. Now real: 141 refs.
Searched the AUTHORITATIVE reconciled set by resolving each Flux spec.path transitively via
conformance/lib/status.py — the same resolver the L0 gate uses, so "what Flux reconciles"
has one definition. 185 occurrences across 47 files in 154 reconciled files. Tokenized:
Gateway listeners, the wildcard Certificate, coredns-custom, external-dns, Keycloak
instance/realm (26 redirect URIs), oauth2-proxy, Grafana OIDC, all HTTPRoutes, Homepage's 15
links, 30 runbook_urls, unifi cloud-init, render.py's ZONE constant (which drove
--oidc-issuer-url/--cookie-domain/--whitelist-domain on every forward-auth sidecar) and 11
catalog/ ServiceDefinitions re-rendered canonically. Left alone: 43 comment/prose
occurrences and non-reconciled paths.

TWO THAT CANNOT BE TOKENIZED, flagged not forced:
  - headlamp's OIDC URLs live inside a SOPS-encrypted Secret; re-encrypting rewrites the MAC
    over every value and the OFFLINE harness cannot verify it (kustomize does not decrypt),
    so an error would break live-dev SSO with no pre-flight proof. Prod needs its own copy
    anyway — client secrets are realm-scoped.
  - kube-apiserver --oidc-issuer-url is a k3s SERVER FLAG, not a manifest, so Flux can never
    reach it. Done on the inventory seam instead (k3s_base_domain -> k3s_oidc_issuer_url,
    overridden in group_vars/k3s_prod). Verified per host: dev keeps the default, prod gets
    prod.home.

EXTERNAL-DNS OWNER, the actual incident cause: txtOwnerId is now explicit per environment —
dev renders exactly `default` (the chart default it was already using, so its existing
records stay recognised) and prod gets `prod`. The BASE default is a NON-COLLIDING SENTINEL,
deliberately not `default`, so a future environment that forgets the knob owns nothing and
can delete nothing rather than silently inheriting dev's identity.

I OVERRODE ONE AGENT DECISION against our own prior finding: it narrowed prod's
domainFilters to prod.home.keithjackson.dev as defence in depth. FINDING F-DNS1
(DECISIONS-LOG 2026-08-17) already proved a subdomain filter DROPS THE PARENT ZONE —
ExternalDNS generates the record then skips it with "no hosted zone matching record DNS
Name". Prod would have published NOTHING. Set to the ZONE (keithjackson.dev) like dev.
Isolation comes from the subdomain split plus txtOwnerId, which is what the incident
actually needed and what a domain filter cannot provide.

DEV PROVEN UNCHANGED: 11 of 12 substituting paths byte-identical; the 12th differs by
exactly one line, `+ txtOwnerId: default` — the value dev was already using implicitly.
POSITIVE CONTROLS confirm the harness is not blind: perturbing BASE_DOMAIN moves 10 of 12
hashes (the 2 that don't provably contain no hostname), perturbing the owner id moves
exactly 1. Prod's rendered output has ZERO home.keithjackson.dev references outside prod.,
and its cert renders *.prod.home.keithjackson.dev — no overlap with dev's.

L0 substitution assertions 106 -> 254; BASE_DOMAIN is no longer flagged dead. Gate PASS.

PROD REMAINS SUSPENDED (platform + 10 downstream tiers) pending review; nothing applied.

Serves: R-ENV-02, R-DNS-01, R-DNS-02, R-DNS-03, R-TLS-01.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-09-04 22:43:54 -05:00
jakman85andClaude Opus 4.8 cde2cd138f plex: add env vars (PLEX_UID/GID, TZ, ALLOWED_NETWORKS); homepage: rename Overseerr->Seerr
Plex Deployment had no Plex env vars. Add via the ServiceDefinition env list
(rendered verbatim by catalog/render.py):
- PLEX_UID/PLEX_GID=1000 (image chowns /config to this and drops; matches the
  Longhorn ownership convention seerr/semaphore use)
- TZ=Etc/UTC (no other service sets TZ repo-wide)
- ALLOWED_NETWORKS=10.0.0.0/8,192.168.0.0/16 so in-cluster clients (Seerr ->
  plex:32400) are trusted as LAN (pod CIDR 10.0.0.0/16 + svc 10.43.0.0/16 + LAN)

PLEX_CLAIM intentionally not set (4-min TTL is unusable via git; one-time live
claim persists on /config). ADVERTISE_IP deferred: the only candidate host
resolves via split-horizon DNS to the internal Gateway VIP and its remote
reachability is unverified — a wrong value breaks remote access, so omitted
per prefer-safety, documented as a follow-up in catalog/plex.yaml.

Homepage still labeled seerr as "Overseerr"; renamed the tile to "Seerr"
(icon mdi-play-box-multiple keeps — not overseerr-specific).

Co-Authored-By: Claude Opus 4.8 <[email protected]>
2026-08-28 13:20:34 -05:00
jakman85andClaude Opus 4.8 d835a27875 fix(plex): mount config PVC at /config (image's real config dir)
The plexinc/pms-docker image writes its identity/claim token and the
Library metadata DB under /config, but the config PVC was mounted at the
renderer default /data/config. Plex therefore wrote all state to the
container's EPHEMERAL layer: the server stayed UNCLAIMED (servers.plex.tv
returns 401 with an empty X-Plex-Token) and lost everything on restart,
which is why seerr's "add Plex" failed even with SSL off.

Set the config volume mountPath to /config in catalog/plex.yaml and
re-render apps/wave-0/plex.yaml (only the mountPath line changes; all
other services byte-identical). No fsGroup/securityContext needed:
verified in-cluster the image inits as root (s6-svscan PID 1), chowns
/config to the plex user, then drops privileges (the "Plex Media Server"
process runs as plex) — root can chown the mounted PVC regardless of
fsGroup.

PLEX_CLAIM auto-claim is intentionally NOT wired: the env secretKeyRef
schema has no `optional`, so a placeholder/absent claim Secret would
crashloop the pod. The claim is an operator step (UI sign-in after the
roll, or add a PLEX_CLAIM env from a fresh https://plex.tv/claim token).

Co-Authored-By: Claude Opus 4.8 <[email protected]>
2026-08-27 18:53:46 -05:00
jakman85andClaude Opus 4.8 36a1a4e1f9 refactor(apps): split monolithic apps Kustomization into dependency waves
Replaces the single `apps` Flux Kustomization with dependency-ordered waves
(apps-wave-0..2) so a crashlooping workload isolates to its wave + downstream
instead of stalling the entire app tier. Parallel within a wave, ordered across.

- catalog/render.py: compute waves by longest dependency-path depth over the
  ServiceDefinition `dependencies:` edges (a `<svc>-db` is a leaf, so its
  consumer lands strictly higher — the "DB below consumer" rule falls out of
  longest-path, no special case). `--emit-waves` generates the per-wave
  kustomizations + Flux CRs; `--wave-layout` places renders into the right dir.
  wave 0: pihole gitea jackett plex qbittorrent nextcloud-db semaphore-db
  wave 1: sonarr radarr nextcloud semaphore gitea-actions
  wave 2: seerr
- apps/*.yaml -> apps/wave-{0,1,2}/ (byte-identical moves; SOPS files intact).
- clusters/base: apps.yaml removed; apps-wave-{0,1,2}.yaml added (dependsOn
  chain: platform-config -> wave-0 -> wave-1 -> wave-2, prune+wait each).
- clusters/dev: one SOPS decryption patch per wave (load-bearing).
- DESIGN-waves.md: wave table, topology, cutover runbook.

Cutover: preceded by disabling prune on `apps` (1bfb0db) so removing that
object here does not GC its resources; the wave Kustomizations SSA-adopt the
byte-identical manifests in place (no restart, no PVC churn).

Co-Authored-By: Claude Opus 4.8 <[email protected]>
2026-08-26 12:19:00 -05:00