feat(ci): attest build provenance#76
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Estate artifact-attestation rollout mirroring the proven exemplar. Attests: container image pushed by container-build job.
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Summary
Estate artifact-attestation rollout, mirroring the proven exemplar.
Adds GitHub-native build-provenance attestation to the
container-buildjob in.github/workflows/ci-cd.yml.What is attested
The pushed container image (
${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}). This repo ships only a container — there are no softprops release binaries to attest.Changes
id-token: writeandattestations: writeto thecontainer-buildjob permissions (alongside existingcontents: read,packages: write,security-events: write).id: pushto the existingPush container imagestep so its digest is addressable.Attest container provenancestep (pinnedactions/attest-build-provenance@e8998f949152b193b063cb0ec769d69d929409be # v2) consumingsteps.push.outputs.digest, withpush-to-registry: true.The attestation step is gated
if: github.event_name != 'pull_request'— identical to the push step — so it never runs with an empty digest on PRs.🤖 Generated with Claude Code