Files
home-network-k3s-impl/conformance/tests/l0-static/tls-lifecycle-automated/chainsaw-test.yaml
T
jakman85andClaude Opus 5 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 d1a6628)
rather than by merging work/prod-standup-campaign. That branch carries the DNS apex
inversion, which would have set prod's BASE_DOMAIN to home.keithjackson.dev; prod
runs external-dns with policy: sync and txtOwnerId: prod, so it would have begun
rewriting apex records dev owns while the non-k3s prod still serves 443 there.
Operator sequencing is "dev migrates first". Nothing under clusters/ is touched
here at all, which is what makes this safe to land now.

Also deliberately EXCLUDED, because prod's live cluster-vars has no CNPG_BACKUP_PATH
key and StrictPostBuildSubstitutions would fail the whole tier: the R2 rework of
platform/velero/ and the CNPG destinationPath changes. Those land as
feat/r2-backup-prod together with the endpoint and bucket knobs.

WHAT THIS FIXES

1. Nothing was watching CNPG. All three prod databases have run since bootstrap with
   ContinuousArchiving=False and firstRecoverabilityPoint=null, and no alert existed
   anywhere. Because archive_mode=on and the archive command fails, Postgres refuses
   to recycle WAL: keycloak-db holds every segment ever written (257 MiB on a 5 GiB
   volume, ~6.8 MiB/h) — roughly 29 days to a disk-full PANIC on the cluster's SSO
   database. Found by hand, 38h late. CNPGWALArchiveBacklog would have fired within
   the hour, and evaluates to 3 firing series on prod today.
   Rules key on cnpg_collector_* rather than cnpg_pg_stat_archiver_*, because
   nextcloud-db's exporter cannot log in to its own database (permission denied for
   database "nextcloud", both clusters) so the pg_stat_archiver family does not exist
   for it — the obvious metric would have been blind to one database in three.

2. No PVC outside namespace=monitoring had any fill alert. New rules are partitioned
   by namespace so they cannot double-fire with MonitoringVolumeFillingUp, pinned to
   job="kubelet" (the apiserver copy of the same series reports namespace=default),
   and guarded by inodes > 0 — block-mode PVCs such as unifi-rootdisk report
   available=0 forever and would otherwise have fired critical permanently.

3. VPNTunnelDown could never clear on a cluster with no gateway node; it has been
   firing critical on prod since 2026-09-05. Now guarded so prod self-arms the moment
   a node carries the egress-gateway label, with dev's behaviour unchanged today.

4. The Keycloak realm import fails OPEN: an unresolved placeholder is stored
   LITERALLY and the import still reports success, then sits at Done=True and never
   re-runs. On 2026-09-06 all 12 prod OIDC clients held the literal
   $(env:..._CLIENT_SECRET) string and every SSO login failed, while every signal was
   green. The CronJob is the level-triggered correction; two alerts make its silence
   observable. Repaired live already — this stops it recurring.

Also: the R-NET-04 conformance scan descended into nested agent worktrees under
.claude/, counting 4 egress policies where 1 is authored.

Co-Authored-By: Claude Opus 5 <[email protected]>
2026-09-07 00:59:22 -05:00

70 lines
4.0 KiB
YAML

# =============================================================================
# L0 STATIC — certificate lifecycle needs no manual step (R-TLS-02) [EXECUTABLE]
# Catalog: docs/14 L0 row ("Pre-apply, in CI") — runs WITHOUT a cluster.
# Spec: docs/00 R-TLS-02 ("Certificates MUST be automatically issued, renewed, and
# revoked without manual steps"); mechanism in docs/08 + ADR-0006.
#
# R-TLS-02 is one adverbial clause plus three runtime verbs. This test asserts the
# clause — "without manual steps" — which in a GitOps platform is a property of the
# REPOSITORY: a human step in the certificate path leaves evidence in git (committed
# cert material, a Gateway serving a Secret nothing declares, an issuer with no
# automated solver, a credential never delivered, auto-approval switched off, or CRs
# nothing reconciles). The three verbs are observed by the companion L2 test.
#
# ENVIRONMENT-AGNOSTIC (R-ENV-02): the issuer a Certificate names is `${ACME_CLUSTER_ISSUER}`,
# so the check resolves it against the BASE cluster-vars default AND every overlay's value and
# requires each resolved issuer to exist. dev's issuer and prod's issuer are both verified from
# one authored assertion, with no hostname, address or environment name written down.
#
# GIVEN the repository as git tracks it,
# WHEN every serving-TLS reference, Certificate, Issuer and the cert-manager release
# is inspected offline,
# THEN every Gateway listener that terminates TLS serves a Secret a tracked Certificate
# produces; no certificate material is committed anywhere; every Certificate's
# issuer resolves — in EVERY environment — to a tracked ACME issuer with an
# automated dns01/http01 solver whose credential is SOPS-delivered from git;
# cert-manager's automatic request approval is not disabled; and every one of
# those objects is rendered by a Flux Kustomization, so nothing in the chain
# depends on a human running kubectl.
#
# STATUS: EXECUTABLE. `check.sh` is a pure offline assertion script (git + PyYAML, no
# cluster, no network); conformance/run.sh --layer l0 and ci/l0.sh run it directly, and
# this Chainsaw Test wraps the SAME script.
#
# KNOWN, DELIBERATE GAPS (named in check.sh's header too — this test claims NONE of them):
# * ISSUED / RENEWED as runtime events: L2 (l2-behavioral/cert-lifecycle-automated).
# * REVOKED: not proven at any layer today. cert-manager performs no ACME revocation,
# and the spec's own reading (docs/08: "removing/rotating a certificate is a
# declarative change") needs `enableCertificateOwnerRef`, which the tracked
# cert-manager HelmRelease does not set — so a removed Certificate leaves its
# serving Secret behind. The L2 test asserts the withdrawal behaviour and is
# EXPECTED TO FAIL until that knob is set; escalated, not softened (R-TEST-06).
# * That the live cluster is serving the tracked Certificate (cluster state).
# =============================================================================
apiVersion: chainsaw.kyverno.io/v1alpha1
kind: Test
metadata:
name: tls-lifecycle-automated
labels:
conformance.home.k3s/R-TLS-02: "true"
annotations:
conformance.home.k3s/requirements: "R-TLS-02"
conformance.home.k3s/layer: "L0"
conformance.home.k3s/safety-critical: "false"
conformance.home.k3s/executable: "true"
conformance.home.k3s/intent: >-
Given the tracked tree, when the certificate path is inspected offline, then no
manual step exists anywhere in it: serving Secrets are cert-manager-produced, no
cert material is committed, every environment's issuer is a tracked ACME issuer
with an automated solver and a git-delivered credential, auto-approval is on, and
the whole chain is Flux-reconciled.
spec:
steps:
- name: then-no-manual-step-exists-in-the-certificate-path
description: >-
Run the offline assertion script over the tracked tree (same script ci/l0.sh
and conformance/run.sh --layer l0 execute).
try:
- script:
content: bash ./check.sh