# .gitea/workflows/release-keyless-sign.yml
# Keyless signing for StellaOps release artifacts
#
# This workflow signs release artifacts using keyless signing (Fulcio).
# It demonstrates dogfooding of the keyless signing feature.
#
# Triggers:
# - After release bundle is published
# - Manual trigger for re-signing
#
# Artifacts signed:
# - Container images
# - CLI binaries
# - SBOM documents
# - Release manifest

name: Release Keyless Signing

on:
  release:
    types: [published]
  workflow_dispatch:
    inputs:
      version:
        description: 'Release version to sign (e.g., 2025.12.0)'
        required: true
        type: string
      dry_run:
        description: 'Dry run (skip actual signing)'
        required: false
        default: false
        type: boolean

env:
  STELLAOPS_URL: "https://api.stella-ops.internal"
  REGISTRY: registry.stella-ops.org

jobs:
  sign-images:
    runs-on: ubuntu-22.04
    permissions:
      id-token: write
      contents: read
      packages: write

    outputs:
      scanner-attestation: ${{ steps.sign-scanner.outputs.attestation-digest }}
      cli-attestation: ${{ steps.sign-cli.outputs.attestation-digest }}
      gateway-attestation: ${{ steps.sign-gateway.outputs.attestation-digest }}

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Determine Version
        id: version
        run: |
          if [[ -n "${{ github.event.inputs.version }}" ]]; then
            VERSION="${{ github.event.inputs.version }}"
          else
            VERSION="${{ github.event.release.tag_name }}"
            VERSION="${VERSION#v}"
          fi
          echo "version=${VERSION}" >> $GITHUB_OUTPUT
          echo "Release version: ${VERSION}"

      - name: Install StellaOps CLI
        run: |
          curl -sL https://get.stella-ops.org/cli | sh
          echo "$HOME/.stellaops/bin" >> $GITHUB_PATH

      - name: Log in to Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.REGISTRY_USERNAME }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

      - name: Get OIDC Token
        id: oidc
        run: |
          OIDC_TOKEN="${ACTIONS_ID_TOKEN}"
          if [[ -z "$OIDC_TOKEN" ]]; then
            echo "::error::OIDC token not available"
            exit 1
          fi
          echo "::add-mask::${OIDC_TOKEN}"
          echo "token=${OIDC_TOKEN}" >> $GITHUB_OUTPUT

      - name: Sign Scanner Image
        id: sign-scanner
        if: ${{ github.event.inputs.dry_run != 'true' }}
        env:
          STELLAOPS_OIDC_TOKEN: ${{ steps.oidc.outputs.token }}
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          IMAGE="${REGISTRY}/stellaops/scanner:${VERSION}"

          echo "Signing scanner image: ${IMAGE}"
          DIGEST=$(docker manifest inspect "${IMAGE}" -v | jq -r '.Descriptor.digest')

          RESULT=$(stella attest sign \
            --keyless \
            --artifact "${DIGEST}" \
            --type image \
            --rekor \
            --output json)

          ATTESTATION=$(echo "$RESULT" | jq -r '.attestationDigest')
          REKOR=$(echo "$RESULT" | jq -r '.rekorUuid')

          echo "attestation-digest=${ATTESTATION}" >> $GITHUB_OUTPUT
          echo "rekor-uuid=${REKOR}" >> $GITHUB_OUTPUT

          # Push attestation to registry
          stella attest push \
            --attestation "${ATTESTATION}" \
            --registry "stellaops/scanner"

      - name: Sign CLI Image
        id: sign-cli
        if: ${{ github.event.inputs.dry_run != 'true' }}
        env:
          STELLAOPS_OIDC_TOKEN: ${{ steps.oidc.outputs.token }}
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          IMAGE="${REGISTRY}/stellaops/cli:${VERSION}"

          echo "Signing CLI image: ${IMAGE}"
          DIGEST=$(docker manifest inspect "${IMAGE}" -v | jq -r '.Descriptor.digest')

          RESULT=$(stella attest sign \
            --keyless \
            --artifact "${DIGEST}" \
            --type image \
            --rekor \
            --output json)

          ATTESTATION=$(echo "$RESULT" | jq -r '.attestationDigest')
          echo "attestation-digest=${ATTESTATION}" >> $GITHUB_OUTPUT

          stella attest push \
            --attestation "${ATTESTATION}" \
            --registry "stellaops/cli"

      - name: Sign Gateway Image
        id: sign-gateway
        if: ${{ github.event.inputs.dry_run != 'true' }}
        env:
          STELLAOPS_OIDC_TOKEN: ${{ steps.oidc.outputs.token }}
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          IMAGE="${REGISTRY}/stellaops/gateway:${VERSION}"

          echo "Signing gateway image: ${IMAGE}"
          DIGEST=$(docker manifest inspect "${IMAGE}" -v | jq -r '.Descriptor.digest')

          RESULT=$(stella attest sign \
            --keyless \
            --artifact "${DIGEST}" \
            --type image \
            --rekor \
            --output json)

          ATTESTATION=$(echo "$RESULT" | jq -r '.attestationDigest')
          echo "attestation-digest=${ATTESTATION}" >> $GITHUB_OUTPUT

          stella attest push \
            --attestation "${ATTESTATION}" \
            --registry "stellaops/gateway"

  sign-binaries:
    runs-on: ubuntu-22.04
    permissions:
      id-token: write
      contents: read

    outputs:
      cli-linux-x64: ${{ steps.sign-cli-linux-x64.outputs.attestation-digest }}
      cli-linux-arm64: ${{ steps.sign-cli-linux-arm64.outputs.attestation-digest }}
      cli-darwin-x64: ${{ steps.sign-cli-darwin-x64.outputs.attestation-digest }}
      cli-darwin-arm64: ${{ steps.sign-cli-darwin-arm64.outputs.attestation-digest }}
      cli-windows-x64: ${{ steps.sign-cli-windows-x64.outputs.attestation-digest }}

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Determine Version
        id: version
        run: |
          if [[ -n "${{ github.event.inputs.version }}" ]]; then
            VERSION="${{ github.event.inputs.version }}"
          else
            VERSION="${{ github.event.release.tag_name }}"
            VERSION="${VERSION#v}"
          fi
          echo "version=${VERSION}" >> $GITHUB_OUTPUT

      - name: Install StellaOps CLI
        run: |
          curl -sL https://get.stella-ops.org/cli | sh
          echo "$HOME/.stellaops/bin" >> $GITHUB_PATH

      - name: Download Release Artifacts
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          mkdir -p artifacts

          # Download CLI binaries
          gh release download "v${VERSION}" \
            --pattern "stellaops-cli-*" \
            --dir artifacts \
            || echo "No CLI binaries found"

      - name: Get OIDC Token
        id: oidc
        run: |
          OIDC_TOKEN="${ACTIONS_ID_TOKEN}"
          echo "::add-mask::${OIDC_TOKEN}"
          echo "token=${OIDC_TOKEN}" >> $GITHUB_OUTPUT

      - name: Sign CLI Binary (linux-x64)
        id: sign-cli-linux-x64
        if: ${{ github.event.inputs.dry_run != 'true' }}
        env:
          STELLAOPS_OIDC_TOKEN: ${{ steps.oidc.outputs.token }}
        run: |
          BINARY="artifacts/stellaops-cli-linux-x64"
          if [[ -f "$BINARY" ]]; then
            DIGEST="sha256:$(sha256sum "$BINARY" | cut -d' ' -f1)"

            RESULT=$(stella attest sign \
              --keyless \
              --artifact "${DIGEST}" \
              --type binary \
              --rekor \
              --output json)

            ATTESTATION=$(echo "$RESULT" | jq -r '.attestationDigest')
            echo "attestation-digest=${ATTESTATION}" >> $GITHUB_OUTPUT
          fi

      - name: Sign CLI Binary (linux-arm64)
        id: sign-cli-linux-arm64
        if: ${{ github.event.inputs.dry_run != 'true' }}
        env:
          STELLAOPS_OIDC_TOKEN: ${{ steps.oidc.outputs.token }}
        run: |
          BINARY="artifacts/stellaops-cli-linux-arm64"
          if [[ -f "$BINARY" ]]; then
            DIGEST="sha256:$(sha256sum "$BINARY" | cut -d' ' -f1)"

            RESULT=$(stella attest sign \
              --keyless \
              --artifact "${DIGEST}" \
              --type binary \
              --rekor \
              --output json)

            ATTESTATION=$(echo "$RESULT" | jq -r '.attestationDigest')
            echo "attestation-digest=${ATTESTATION}" >> $GITHUB_OUTPUT
          fi

      - name: Sign CLI Binary (darwin-x64)
        id: sign-cli-darwin-x64
        if: ${{ github.event.inputs.dry_run != 'true' }}
        env:
          STELLAOPS_OIDC_TOKEN: ${{ steps.oidc.outputs.token }}
        run: |
          BINARY="artifacts/stellaops-cli-darwin-x64"
          if [[ -f "$BINARY" ]]; then
            DIGEST="sha256:$(sha256sum "$BINARY" | cut -d' ' -f1)"

            RESULT=$(stella attest sign \
              --keyless \
              --artifact "${DIGEST}" \
              --type binary \
              --rekor \
              --output json)

            ATTESTATION=$(echo "$RESULT" | jq -r '.attestationDigest')
            echo "attestation-digest=${ATTESTATION}" >> $GITHUB_OUTPUT
          fi

      - name: Sign CLI Binary (darwin-arm64)
        id: sign-cli-darwin-arm64
        if: ${{ github.event.inputs.dry_run != 'true' }}
        env:
          STELLAOPS_OIDC_TOKEN: ${{ steps.oidc.outputs.token }}
        run: |
          BINARY="artifacts/stellaops-cli-darwin-arm64"
          if [[ -f "$BINARY" ]]; then
            DIGEST="sha256:$(sha256sum "$BINARY" | cut -d' ' -f1)"

            RESULT=$(stella attest sign \
              --keyless \
              --artifact "${DIGEST}" \
              --type binary \
              --rekor \
              --output json)

            ATTESTATION=$(echo "$RESULT" | jq -r '.attestationDigest')
            echo "attestation-digest=${ATTESTATION}" >> $GITHUB_OUTPUT
          fi

      - name: Sign CLI Binary (windows-x64)
        id: sign-cli-windows-x64
        if: ${{ github.event.inputs.dry_run != 'true' }}
        env:
          STELLAOPS_OIDC_TOKEN: ${{ steps.oidc.outputs.token }}
        run: |
          BINARY="artifacts/stellaops-cli-windows-x64.exe"
          if [[ -f "$BINARY" ]]; then
            DIGEST="sha256:$(sha256sum "$BINARY" | cut -d' ' -f1)"

            RESULT=$(stella attest sign \
              --keyless \
              --artifact "${DIGEST}" \
              --type binary \
              --rekor \
              --output json)

            ATTESTATION=$(echo "$RESULT" | jq -r '.attestationDigest')
            echo "attestation-digest=${ATTESTATION}" >> $GITHUB_OUTPUT
          fi

  verify-signatures:
    needs: [sign-images, sign-binaries]
    runs-on: ubuntu-22.04
    permissions:
      contents: read
      packages: read

    steps:
      - name: Install StellaOps CLI
        run: |
          curl -sL https://get.stella-ops.org/cli | sh
          echo "$HOME/.stellaops/bin" >> $GITHUB_PATH

      - name: Determine Version
        id: version
        run: |
          if [[ -n "${{ github.event.inputs.version }}" ]]; then
            VERSION="${{ github.event.inputs.version }}"
          else
            VERSION="${{ github.event.release.tag_name }}"
            VERSION="${VERSION#v}"
          fi
          echo "version=${VERSION}" >> $GITHUB_OUTPUT

      - name: Verify Scanner Image
        if: ${{ github.event.inputs.dry_run != 'true' }}
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          IMAGE="${REGISTRY}/stellaops/scanner:${VERSION}"
          DIGEST=$(docker manifest inspect "${IMAGE}" -v | jq -r '.Descriptor.digest')

          stella attest verify \
            --artifact "${DIGEST}" \
            --certificate-identity "stella-ops.org/git.stella-ops.org:ref:refs/tags/v${VERSION}" \
            --certificate-oidc-issuer "https://git.stella-ops.org" \
            --require-rekor

      - name: Summary
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          cat >> $GITHUB_STEP_SUMMARY << EOF
          ## Release v${VERSION} Signed

          ### Container Images

          | Image | Attestation |
          |-------|-------------|
          | scanner | \`${{ needs.sign-images.outputs.scanner-attestation }}\` |
          | cli | \`${{ needs.sign-images.outputs.cli-attestation }}\` |
          | gateway | \`${{ needs.sign-images.outputs.gateway-attestation }}\` |

          ### CLI Binaries

          | Platform | Attestation |
          |----------|-------------|
          | linux-x64 | \`${{ needs.sign-binaries.outputs.cli-linux-x64 }}\` |
          | linux-arm64 | \`${{ needs.sign-binaries.outputs.cli-linux-arm64 }}\` |
          | darwin-x64 | \`${{ needs.sign-binaries.outputs.cli-darwin-x64 }}\` |
          | darwin-arm64 | \`${{ needs.sign-binaries.outputs.cli-darwin-arm64 }}\` |
          | windows-x64 | \`${{ needs.sign-binaries.outputs.cli-windows-x64 }}\` |

          ### Verification

          \`\`\`bash
          stella attest verify \\
            --artifact "sha256:..." \\
            --certificate-identity "stella-ops.org/git.stella-ops.org:ref:refs/tags/v${VERSION}" \\
            --certificate-oidc-issuer "https://git.stella-ops.org"
          \`\`\`
          EOF