bodek/.github/workflows/release.yml at main · BackendStack21/bodek · GitHub

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name: Release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write

jobs:
  goreleaser:
    name: GoReleaser
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7
        with:
          fetch-depth: 0

      - name: Set up Go
        uses: actions/setup-go@v7
        with:
          go-version-file: go.mod
          cache: true

      - name: Run GoReleaser
        uses: goreleaser/goreleaser-action@v7
        with:
          distribution: goreleaser
          version: '~> v2'
          args: release --clean
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  sign:
    name: Sign artifacts
    needs: goreleaser
    runs-on: ubuntu-latest
    permissions:
      contents: write
      id-token: write # OIDC identity for Sigstore keyless signing / attestation
    env:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - name: download release assets
        run: |
          mkdir dist
          gh release download "${GITHUB_REF_NAME}" --repo "${GITHUB_REPOSITORY}" --dir dist

      - name: verify checksums
        working-directory: dist
        run: sha256sum -c checksums.txt

      # SPDX SBOM so the SBOM ships signed like every other asset.
      - name: SBOM
        uses: anchore/sbom-action@3ad7283483fc7af8ff2b4ea19663c2d5ca935e26 # v0.24.2
        with:
          format: spdx-json
          output-file: dist/bodek-${{ github.ref_name }}-sbom.spdx.json
          upload-artifact: false
          upload-release-assets: false

      - uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
        with:
          cosign-release: v3.1.3 # pinned: a future cosign major must not break a tagged release mid-flight

      # Keyless signing: Fulcio cert bound to this workflow's OIDC identity,
      # logged in Rekor. Explicit file list (not a glob of everything) so
      # generated .bundle outputs can never be re-signed.
      - name: sign artifacts
        working-directory: dist
        run: |
          FILES="checksums.txt"
          for f in bodek_*.tar.gz bodek_*.zip; do
            FILES="$FILES $f"
          done
          for f in $FILES bodek-*-sbom.spdx.json; do
            cosign sign-blob --yes --bundle "${f}.bundle" "$f"
          done

      # in-toto attestation naming the exact source commit each artifact was
      # built from. Predicate type "custom" keeps the step free of cosign's
      # SLSA schema validation; the content is SLSA-provenance-shaped.
      - name: provenance attestation
        working-directory: dist
        env:
          GIT_REF: ${{ github.ref }}
          GIT_SHA: ${{ github.sha }}
        run: |
          printf '{
            "builder": {"id": "https://github.com/BackendStack21/bodek/.github/workflows/release.yml@%s"},
            "buildType": "https://github.com/BackendStack21/bodek/.github/workflows/release.yml",
            "invocation": {"configSource": {"uri": "git+https://github.com/BackendStack21/bodek", "digest": {"sha1": "%s"}}},
            "metadata": {"completeness": {"parameters": true, "environment": false}, "reproducible": false},
            "materials": [{"uri": "git+https://github.com/BackendStack21/bodek", "digest": {"sha1": "%s"}}]
          }' "${GIT_REF}" "${GIT_SHA}" "${GIT_SHA}" > provenance.json
          FILES="checksums.txt"
          for f in bodek_*.tar.gz bodek_*.zip; do
            FILES="$FILES $f"
          done
          for f in $FILES bodek-*-sbom.spdx.json; do
            cosign attest-blob --yes --type custom --predicate provenance.json --bundle "${f}.attestation.bundle" "$f"
          done

      - name: upload signatures
        run: gh release upload "${GITHUB_REF_NAME}" --repo "${GITHUB_REPOSITORY}" --clobber dist/*.bundle