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feat(ci): attest container build provenance (attestation-rollout exemplar) #172

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Merged
hyperpolymath merged 1 commit into from
Jun 25, 2026
Merged

feat(ci): attest container build provenance (attestation-rollout exemplar) #172

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17 changes: 17 additions & 0 deletions .github/workflows/publish-ghcr.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,11 @@ jobs:
name: Publish Docker container
runs-on: ubuntu-latest
timeout-minutes: 15
permissions:
contents: read
packages: write
id-token: write # mint the OIDC token the attestation is signed with
attestations: write # write the build-provenance attestation (the "claim")
steps:
- name: Checkout repository
uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
Expand All @@ -59,6 +64,7 @@ jobs:
type=semver,pattern={{major}}.{{minor}}
type=sha
- name: Build and push
id: push
uses: docker/build-push-action@4f58ea79222b3b9dc2c8bbdd6debcef730109a75 # v6
with:
context: .
Expand All @@ -67,3 +73,14 @@ jobs:
labels: ${{ steps.meta.outputs.labels }}
cache-from: type=gha
cache-to: type=gha,mode=max
# GitHub native artifact attestation (build provenance) for the pushed
# image — a signed, verifiable claim binding the image digest to this
# build. Verify with:
# gh attest verify oci://ghcr.io/${{ github.repository }}:<tag> \
# --repo ${{ github.repository }}
- name: Attest container provenance
uses: actions/attest-build-provenance@e8998f949152b193b063cb0ec769d69d929409be # v2
with:
subject-name: ghcr.io/${{ github.repository }}
subject-digest: ${{ steps.push.outputs.digest }}
push-to-registry: true
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