[hotfix-0.1353] fix(sbom): Do not pollute database with stale SBoM blobs (#889)#890
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8R0WNI3 merged 1 commit intoJul 16, 2026
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…ent-model#889) SBoMs can be re-generated, however the technical digest used to reference the blobs is not stable. This leads to a situation where regeneration updates the referenced digest, but does not clean up the old blob, effectively polluting the database and letting it grow in size. As a mitigation, introduce an explicit overwrite codepath which tackles deletion. Optionally, skip regeneration in case an SBoM exists for the artefact already (can be detected as OCM artefact identities are used instead of the technical blob referenece). Signed-off-by: Philipp Heil (zkdev) <philipp.heil@sap.com>
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What this PR does / why we need it:
SBoMs can be re-generated, however the technical digest used to reference the blobs is not stable. This leads to a situation where regeneration updates the referenced digest, but does not clean up the old blob, effectively polluting the database and letting it grow in size.
As a mitigation, introduce an explicit overwrite codepath which tackles deletion. Optionally, skip regeneration in case an SBoM exists for the artefact already (can be detected as OCM artefact identities are used instead of the technical blob referenece).
Which issue(s) this PR fixes:
Fixes #
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Release note: