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Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
  jakman85andClaude Opus 5
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8eb5baffa4 |
feat(sec): constrain the conformance CI trigger at admission (R-SEC-02)
Implements the credential model the operator chose for wiring L2/L3 into CI: a narrow
trigger SA bounded by a fail-closed Kyverno admission policy, rather than the
zero-credential GitOps-native alternative (plan section 4, primary model).
THE ESCALATION THIS CLOSES. Kubernetes places NO `use` check on a Job's
serviceAccountName. Any principal that can `create jobs` in ns conformance can create a Job
running as conformance-runner -- nodes/patch, pods/exec, namespaces/patch -- with an
arbitrary command. A CI token with plain `create jobs` IS that privileged identity no matter
how narrow its own Role looks. RBAC cannot fix this; only constraining the SHAPE of what the
trigger may create can.
Adds:
* SA/Role/RoleBinding conformance-trigger -- create+get+list+watch jobs, get pods and
pods/log, nothing else. Namespaced. No delete (a trigger that can delete can hide a
failed run), no exec, no secrets. Results come back as a tarball on stdout read via
pods/log, so no execution channel into the runner pod is ever granted.
* ClusterPolicy conformance-trigger-job-shape -- Enforce, failurePolicy: Fail. It does NOT
use ${KYVERNO_VALIDATION_ACTION}: a security boundary an overlay can downgrade to Audit
is not a boundary. It constrains ONLY conformance-trigger, so a mistake here cannot wedge
the rest of the cluster.
* Flux Kustomization `conformance` -> ./conformance/incluster, wait:false and non-gating
like apps-vms, so a test identity can never stall the platform or app tiers.
* A kyverno test with seven cases, six of them real escalation paths.
VERIFIED by `kyverno apply` (pass: 10, fail: 6, error: 0), not assumed:
evil-command DENIED at /spec/template/spec/containers/0/command/ <- THE attack
evil-image DENIED at .../image/
tag-not-digest DENIED at .../image/ (mutable tag is republishable)
host-namespaces DENIED at /spec/template/spec/hostPID/
extra-volume DENIED by the volumes foreach
injected-args DENIED by the args foreach
good-run ADMITTED
ALSO FIXES A FAIL-OPEN IN THE GATE ITSELF. `kyverno test` does NOT fail when a policy cannot
LOAD: every row becomes "Skip / Invalid Policy" and it still prints "N tests passed" and
exits 0. Measured while writing this policy -- a schema error (subjects in a separate
match.all entry from resources) produced exactly that, and ci/l0.sh would have certified a
security policy that does not load as green. This is not specific to this policy: a typo in
restrict-host-namespaces or secret-provenance would silently disable it with the gate still
green. ci/l0.sh now scans for "Invalid Policy" and fails. Proven: broken policy -> l0 rc=1,
restored -> rc=0.
IMAGE PINNING, HONEST LIMIT: the plan specifies pinning the exact runner image digest. That
image does not exist yet, so this enforces the enforceable half -- the image must be under
the conformance repository path AND digest-pinned, never a mutable tag. Residual surface:
anyone who can PUSH to that path could publish a different digest. Tighten to the literal
digest when the image is built; it is a one-line change to the pattern, reviewed in a PR,
which is where a change to a security boundary belongs.
NOT YET WIRED, deliberately: no runner image, no trigger kubeconfig, no CLUSTER_AVAILABLE.
The identities here are inert until those exist, and PR #12 makes CLUSTER_AVAILABLE=true
block rather than fake a green in the meantime.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
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jakman85andClaude Opus 5
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e72050c690 |
docs: correct CI/platform documentation that was stale, wrong, or load-bearing
The 2026-09-29 session found the merge gate did not exist -- no branch protection, no runner -- while the tree asserted both. This corrects the documents that carried, and in several cases CAUSED, that belief. CLAUDE.md gains section 2b: never infer platform state from this repository. It carries the specific API and kubectl checks for protection, runners, CI status, workloads and Flux revisions, and the rule that a green tick is not proof anything ran (a skipped Gitea job reports success). This is the rule whose absence produced every other finding. .gitea/workflows/README.md and merge-gate.yaml both said "there is no remote git host, this file is dormant". Gitea had been live for weeks. Both were written as plans and never revisited once the plan completed. The Transition section is now marked COMPLETE and says what is genuinely still outstanding (CLUSTER_AVAILABLE unset, so L2/L3 never runs in CI). DECISIONS-LOG 2026-08-31 is annotated IN PLACE. Anyone reading chronologically previously hit "required status check; runner incluster-dind online" with nothing marking it false until a month later. The correction now sits on the bullet itself. ci/README.md, clusters/README.md and both conformance READMEs carry a status banner: they speak as though no cluster exists, which makes a live L2/L3 coverage gap read as an expected phase. That framing is why the gap went unexamined. apps/wave-1/gitea-actions-runner-secret.sops.yaml: fixed a wrong path, replaced advice to `sops -d` into a terminal (which CLAUDE.md forbids) with the rotation script, and recorded that a fresh token alone does not re-register a runner holding a stale /data/.runner. apps/wave-0/plex-claim-secret.sops.yaml: the header claimed the file ships the placeholder. It has not since the claim -- it holds the spent token, which is inert and deliberately left in place. catalog/plex.yaml and the plex secret both asserted a "~4-minute TTL" as fact. It was uncited, upstream documents no expiry, and it was the basis for a since-disproven claim that the pipeline was too slow to fit inside it. Measured: ~2m45s. Both .sops.yaml files were verified to still decrypt after the comment edits (`sops -d > /dev/null`), and render==golden confirms the catalog comment does not propagate into the rendered manifest. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]> |
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jakman85andClaude Opus 5
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6a8953e288 |
feat(prod): observability for the two failure modes that went unseen, plus OIDC self-healing
Minimal prod delivery, authored directly on main (= prod's live revision
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jakman85andClaude Opus 5
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14be9b68f6 |
test(conformance): dr-restore actually asserts off-cluster restore (R-STATE-03)
Closes the LAST scaffold-only safety-critical requirement. The operator has attested DR works (Velero -> Proxmox versitygw S3, restore demonstrated), but the L3 test carried the right tag and layer label over a 5-line TODO body — so coverage counted it and reported "0 safety-critical gaps" while the suite asserted nothing. That was test debt, not capability debt. This makes the suite assert what the operator already demonstrated. Three steps: 1. assert-backup-target-is-off-cluster (read-only): BSL must be phase Available (Velero itself reached the store), s3Url host is not localhost/*.svc/*.cluster.local, and the resolved IPv4 is none of — loopback, any Node Internal/ExternalIP, any Service ClusterIP, any Pod IP, inside any node podCIDR, inside any ServiceCIDR. A BSL that exists but never reaches Available FAILS (a live DR defect), it does not skip. 2. assert-backups-are-scheduled: R-STATE-03 says SCHEDULED off-cluster backups — Velero + BSL but zero Schedule in phase Enabled is a fail. 3. The drill: seed a nanosecond-unique canary onto a longhorn PVC in its own scratch namespace; Backup to Completed; assert a PodVolumeBackup for that volume is Completed WITH a non-empty status.snapshotID (the kopia snapshot of volume DATA reached the remote repo, not just resource JSON); ANNIHILATE the source (delete ns, poll until gone, force-delete a lingering PV, FAIL if the original PV survived — a survivor makes the restore prove nothing); Restore with namespaceMapping into a clean namespace; assert the restored PVC bound a DIFFERENT PV and that the canary bytes are identical. Off-cluster proof = endpoint outside every cluster address + BSL Available + kopia snapshotID present + every in-cluster copy destroyed + restore landing on a new PV. The bytes could only have come from outside. Skips GREEN on: no longhorn SC, Velero API absent, no BSL, Velero/node-agent not ready — all three steps re-derive the same gates so it can never half-run. An RBAC denial is deliberately NOT a skip: it fails loudly as a harness defect. Teardown is a step-level `finally` that ALWAYS runs — deletes the Restore, issues a DeleteBackupRequest so objects leave the bucket (2h ttl as backstop), deletes both scratch namespaces by name and by label, releases leftover PVs whose claimRef is one of its own. Everything it destroys is something it created. conformance/incluster/rbac.yaml: authored the R-STATE-03 grants (velero.io backups/ restores/deletebackuprequests create+delete+read; BSL/schedules/podvolume* read-only; persistentvolumes get/list/DELETE — the off-cluster proof requires destroying the PV). Also two pre-existing gaps other tests already depended on: storageclasses get/list (the skip gate of five tests) and apps deployments/daemonsets read. No write verbs on platform controllers. NOT ASSERTED, stated in the file header rather than implied: off-HOST (on dev the nodes are VMs on the same Proxmox host as the S3 target, so this does not survive hypervisor loss); no direct S3 client read (that would hand a privileged test identity the backup credential for weaker evidence); real service data (Nextcloud/Gitea/CNPG drills stay operator exercises); bare-metal rebuild DR; encryption-at-rest; retention/GC. status: scaffold-only 5 -> 4; safety-critical w/o executable L3 1 -> 0 (of 6); executable 35 -> 36. coverage unchanged at 40/51 (correct — coverage only asks whether a tagged test exists). PROVEN stayed 0 / not-derivable: it did NOT flip to proven just because the body is non-empty. AUTHORED, NEVER EXECUTED — carries a conformance.home.k3s/never-executed annotation. No cluster access from this workstation. To convert authored -> proven the operator must, IN A MAINTENANCE WINDOW (it deletes namespaces and PVs and writes/deletes bucket objects): apply the updated rbac.yaml, run `./conformance/run.sh --requirements R-STATE-03 --layer l3`, confirm the log shows DR_RESTORED_FROM_OFF_CLUSTER_BACKUP_OK and NOT DR_RESTORE_SKIPPED_OK (green but proves nothing), confirm no leaked *-dr-src/*-dr-dst namespaces or orphan PVs or *-dr-backup objects, and record the green run. Serves: R-STATE-03, R-TEST-05. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]> |
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jakman85andClaude Opus 4.8
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fdf5c69adc |
test(conformance): add L3 node-loss test for R-STATE-02 (Longhorn node-loss resilience)
R-STATE-02 was the last safety-critical requirement with no verifying test,
exempted via DOCUMENTED_GAPS. Author the L3 fault-injection test that proves the
guarantee and remove the exemption.
tests/l3-fault-injection/node-loss/chainsaw-test.yaml:
GIVEN a 3-replica Longhorn volume with written data attached on node N,
WHEN N is removed from service (cordon + evict the attached workload, forcing
the volume to detach from N),
THEN a fresh workload on a SURVIVING node re-attaches the same volume and reads
the canary intact — volume stays available, cluster reconverges.
Safe-by-construction for the 3-node embedded-etcd dev cluster:
- Disruption scoped to EXACTLY ONE node, at the scheduling layer only (cordon +
evict our own pod). kubelet/etcd stay up — etcd quorum is never touched.
- Never `kubectl drain`; only our own writer pod is deleted, so no unrelated or
system pod is disturbed.
- Victim node labelled conformance.home.k3s/cordoned-by=<test-ns>; `finally`
ALWAYS uncordons every node with THAT label and removes it — restored even on
failure/timeout, and never touches an operator-cordoned node.
- Self-skips green until a longhorn StorageClass AND >= 3 Ready nodes exist.
Bookkeeping:
- run.sh: remove R-STATE-02 from DOCUMENTED_GAPS; add node-loss to CONF_HEAVY_TESTS
(serial pass, matches the other Longhorn/KubeVirt L3 tests).
- incluster/rbac.yaml: enable the scoped nodes get/list/patch rule the test needs
(cordon/uncordon/label); no eviction rights (no drain).
- README.md / coverage.py docstring: refresh the documented-gap example.
Coverage: 36/51 -> 37/51 (70.6% -> 72.5%); safety-critical gaps 1 -> 0. Only
R-STATE-02 changed ([] -> node-loss); no other requirement or golden touched.
NOTE: LIVE execution is DEFERRED to an operator-chosen maintenance window. This
change AUTHORS + statically validates the test (renders, chainsaw-lints, harness
selects it, coverage updates). The static gate runs L2/L3 as SKIP without a
cluster (expected). The node-disruption test was NOT run live.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
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jakman85andClaude Opus 4.8
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0e69c63b55 |
conformance: complete vpn-killswitch L3 test + ADR-0015 RBAC/fixtures
Turn the vpn-killswitch scaffold into a runnable SAFETY-CRITICAL L3 test for R-NET-06 under ADR-0015 (node-level host OpenVPN tunnel steered by Cilium Egress Gateway with a host nftables kill-switch), replacing the obsolete in-cluster gluetun design. - fixtures/vpn-and-internet-pods.yaml: two egress-class probe pods + documented RBAC/PodSecurity/namespace requirements for node-level fault injection. - vpn-killswitch/chainsaw-test.yaml: GIVEN healthy tunnel (vpn egress != WAN); WHEN the host `vpn-egress-tunnel` systemd unit is STOPPED via a privileged, hostPID, node-pinned nsenter Job THEN vpn-class egress is blackholed (curl fails, never returns the WAN IP = no leak) while internet-class is unaffected; WHEN restarted THEN vpn egress recovers. spec-level `finally` ALWAYS runs an idempotent start Job (self-healing) so a mid-test failure never leaves the gateway tunnel down. - incluster/rbac.yaml: grant the runner least-privilege for the delivered tests (namespaces create/delete/patch for the PSA relabel, pods/services/configmaps/ pods-exec/pods-log, batch/jobs) and replace the gluetun-scale rule with the ADR-0015 host-systemd mechanism note (privilege via PodSecurity, not RBAC). Offline validation: python yaml parse (all docs), `run.sh --lint` (structural), `run.sh --coverage-only --strict-coverage` (no tag/annotation drift; R-NET-05/06/ 07 covered, R-NET-06 has its L3 test), yamllint. No live apply, no cluster run. Co-Authored-By: Claude Opus 4.8 <[email protected]> |
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jakman85andClaude Opus 4.8
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9d8e03892f |
T-0.4 Chainsaw conformance harness + coverage + behavior scaffolds (R-TEST-01..06)
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]> |