contracts/.github/workflows/stellar-attestation.yml at develop · wraith-protocol/contracts · GitHub

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name: Reproducible Stellar Build Attestation

on:
  push:
    tags:
      - 'v*' # Trigger on version tags

permissions:
  contents: write
  id-token: write # Required for keyless signing with cosign

jobs:
  build-and-attest:
    name: Build, Attest, and Publish
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Get Commit Hash
        id: vars
        run: echo "commit=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT

      - name: Build Docker Image
        run: |
          docker build \
            --build-arg COMMIT_HASH=${{ steps.vars.outputs.commit }} \
            -t stellar-attestation-builder \
            -f contracts/stellar/build/Dockerfile .

      - name: Run Build and Generate Attestation
        run: |
          # Run the container to build and output the attestation.json
          # We mount a local directory to capture the output file.
          mkdir -p output
          docker run --rm -v $(pwd)/output:/workspace/contracts/stellar/build/output stellar-attestation-builder > output/attestation.json
          # The script echo's the attestation.json to stdout at the end, so we can capture it,
          # or we can modify the run command to copy it out. Wait, the build.sh currently
          # outputs to contracts/stellar/build/attestation.json inside the container.
          # Let's extract it using a docker cp.
          docker create --name builder stellar-attestation-builder
          docker start -a builder
          docker cp builder:/workspace/contracts/stellar/build/attestation.json ./attestation.json
          docker rm builder

      - name: Install Cosign
        uses: sigstore/cosign-installer@v3.5.0

      - name: Sign Attestation
        run: |
          # Using keyless signing (OIDC) which requires id-token permission
          cosign sign-blob --yes --output-signature attestation.json.sig --output-certificate attestation.json.crt attestation.json

      - name: Release
        uses: softprops/action-gh-release@v2
        with:
          files: |
            attestation.json
            attestation.json.sig
            attestation.json.crt