ca2a/.github/workflows/docker.yml at main · zohebk8s/ca2a · GitHub

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name: Docker publish

on:
  push:
    tags:
      - "v*"

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: "true"

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      id-token: write       # keyless cosign signing + provenance attestation (OIDC)
      attestations: write   # actions/attest-build-provenance

    steps:
      - name: Checkout
        uses: actions/checkout@v7

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v4
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract tag name
        id: tag
        run: echo "tag=${GITHUB_REF#refs/tags/}" >> "$GITHUB_OUTPUT"

      - name: Build and push
        id: build
        uses: docker/build-push-action@v7
        with:
          context: .
          push: true
          tags: |
            ghcr.io/agentrust-io/ca2a-runtime:${{ steps.tag.outputs.tag }}
            ghcr.io/agentrust-io/ca2a-runtime:latest

      - name: Install cosign
        uses: sigstore/cosign-installer@v3

      - name: Sign the image (keyless, by digest)
        env:
          DIGEST: ${{ steps.build.outputs.digest }}
        run: cosign sign --yes ghcr.io/agentrust-io/ca2a-runtime@${DIGEST}

      - name: Attest build provenance (SLSA)
        uses: actions/attest-build-provenance@v4
        with:
          subject-name: ghcr.io/agentrust-io/ca2a-runtime
          subject-digest: ${{ steps.build.outputs.digest }}
          push-to-registry: true