Heavy in-cluster builds (e.g. tripit buildkit) were taking Forgejo down via
two vectors. Fixes both, without moving Forgejo off the sdc HDD (code-oflt
deferred):
- Memory 1Gi -> 3Gi (requests=limits). Forgejo was OOMKilled (exit 137) under
registry-push load; VPA upperBound ~1.5Gi was suppressed by the 1Gi cap it
kept OOMing against. Size for the push spike.
- Activate registry retention (DRY_RUN false). Verified the delete list
against all running viktor/* images first: 0 running images affected.
Pruned 478 -> 161 package versions; PVC was at its 50Gi autoresize ceiling.
- FIX broken retention auth: the cleanup PAT was ci-pusher's, but Forgejo
scopes container packages per-user, so DELETE on viktor/* returned 403 (the
dry-run only did GETs, hiding it). Repointed forgejo_cleanup_token to
viktor's write:package PAT. Retention had never actually worked.
- Protect buildkit *cache* tags from retention (cleanup.sh keep-set) so the
gentler-builds layer cache survives daily pruning.
[ci skip] — already applied via scripts/tg.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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