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feat(ci): attest build provenance #161

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

feat(ci): attest build provenance #161

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23 changes: 22 additions & 1 deletion .github/workflows/ghcr-publish.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,11 @@ jobs:
build-and-push:
runs-on: ubuntu-latest
timeout-minutes: 60
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:
- uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0

Expand All @@ -55,10 +60,26 @@ jobs:
podman rm -f verisim-smoke

- name: Push to GHCR
id: push
if: github.event_name != 'pull_request'
run: |
SHORT_SHA="${GITHUB_SHA::12}"
echo "${{ secrets.GITHUB_TOKEN }}" \
| podman login ghcr.io -u "${{ github.actor }}" --password-stdin
# --digestfile records the real sha256 of the pushed manifest so the
# attestation binds to exactly what the registry received.
podman push --digestfile=/tmp/ghcr-digest "$IMAGE:$SHORT_SHA"
podman push "$IMAGE:latest"
podman push "$IMAGE:$SHORT_SHA"
echo "digest=$(cat /tmp/ghcr-digest)" >> "$GITHUB_OUTPUT"

# GitHub native artifact attestation (build provenance) for the pushed
# image. Verify with:
# gh attest verify oci://ghcr.io/hyperpolymath/verisimdb-api:<tag> \
# --repo ${{ github.repository }}
- name: Attest container provenance
if: github.event_name != 'pull_request'
uses: actions/attest-build-provenance@e8998f949152b193b063cb0ec769d69d929409be # v2
with:
subject-name: ghcr.io/hyperpolymath/verisimdb-api
subject-digest: ${{ steps.push.outputs.digest }}
push-to-registry: true
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