LIVE REGRESSION, caught on the reconcile after merging #5. nextcloud went
CrashLoopBackOff with FailedPostStartHook, 7 restarts, and apps-wave-1/2 stalled.
ROOT CAUSE — a latent bug that could never fire until now. The final statement of
nextcloud's postStart script was:
[ "$p" -ge 15 ] && nextcloud_oidc_fail "could not promote ... after retries"
On the SUCCESS path (p < 15) the test returns 1, and as the script's LAST command that
becomes the hook's exit status. A non-zero postStart exit makes the kubelet KILL the
container. This was harmless for as long as the OIDC guard above it was dead code that
exited 0 first (see 3484955) — fixing that guard made the block execute for the first
time in these apps' deployed lifetime, and the bug fired immediately.
That is the honest sequence: the previous commit did not introduce this defect, it
UNCOVERED it. Two bugs stacked, and the outer one hid the inner one.
FIX: convert to a plain `if`, then `exit 0` explicitly, with a comment recording why.
Also made gitea's hook explicit. Its last statement already returned 0 on both paths, so
it was correct by accident of ordering; leaving one hook implicitly-safe and one
explicitly-safe invites exactly this class back. Both now end with an unconditional
`exit 0`, and both say why in-file.
Every failure path in both hooks still logs loudly to stderr AND writes a marker file on
the persistent volume, and deliberately does NOT crash the pod — the break-glass local
admin must stay usable. That contract is now actually honoured; before, the success path
was the one that crashed.
Fixed in catalog/ (the ServiceDefinitions are the source of truth) and goldens
regenerated; render==golden green, renderer selftest PASS.
Serves: R-IDP-02, R-IDP-06, R-GITOPS-02.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
apps
App-tier manifests, rendered from catalog/*.yaml ServiceDefinitions by catalog/render.py
and split into dependency-ordered waves (wave-<N>/).
- Each
wave-<N>/is reconciled by its own Flux Kustomizationapps-wave-<N>(clusters/base/apps-wave-<N>.yaml), whichdependsOnwave N-1 (wave 0 dependsOnplatform-config) and health-gates (wait: true) ONLY that wave. A crashlooping workload in a later wave can no longer stall an earlier wave or block new revisions. wave-<N>/kustomization.yamlandclusters/base/apps-wave-<N>.yamlare generated — runpython3 catalog/render.py --emit-wavesafter onboarding a service; do not hand-edit them.- Wave assignment = longest dependency-path depth over the catalog
dependencies:graph; a co-located CNPG database<svc>-dbis a leaf and always lands strictly below its consumer.
See ../DESIGN-waves.md for the wave table, Flux topology, and the
cutover runbook.