The keep-set (newest 10 versions + latest + *cache* tags) treats
multi-arch/attestation index CHILDREN — separate untagged sha256
versions — as deletable: for images not rebuilt recently they sort
outside the newest-10 window and were pruned while their kept parent
index survived. kms-website :latest and :dfc83fb children 404'd
(RegistryManifestIntegrityFailure, caught by forgejo-integrity-probe
within hours; deployed tag a794d1a unaffected).
Healed: :latest re-pointed at the intact a794d1a index (also the
newest commit), corrupt :dfc83fb version deleted, probe re-run clean
(0 failures / 22 repos / 63 tags / 59 indexes). DRY_RUN=true applied
live. Re-enable only with a container-aware keep-set — options in the
post-mortem.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
