on:
  push:
    tags:
      - "api/v*" # Push events to matching api/v*, i.e. api/v1.0, api/v20.15.10

name: API Release

env:
  GO_VERSION: "1.25.10"

permissions: # added using https://github.com/step-security/secure-workflows
  contents: read

jobs:
  check:
    name: Check Signed Tag
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/api/v')
    runs-on: ubuntu-24.04
    timeout-minutes: 5
    outputs:
      stringver: ${{ steps.contentrel.outputs.stringver }}

    steps:
      - name: Checkout code
        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          ref: ${{ github.ref }}
          path: src/github.com/containerd/containerd

      - name: Check signature
        run: |
          releasever=${{ github.ref }}
          releasever="${releasever#refs/tags/}"
          TAGCHECK=$(git tag -v ${releasever} 2>&1 >/dev/null) ||
          echo "${TAGCHECK}" | grep -q "error" && {
              echo "::error::tag ${releasever} is not a signed tag. Failing release process."
              exit 1
          } || {
              echo "Tag ${releasever} is signed."
              exit 0
          }
        working-directory: src/github.com/containerd/containerd

      - name: Release content
        id: contentrel
        run: |
          RELEASEVER=${{ github.ref }}
          echo "stringver=${RELEASEVER#refs/tags/api/v}" >> $GITHUB_OUTPUT
          git tag -l ${RELEASEVER#refs/tags/} -n20000 | tail -n +3 | cut -c 5- >release-notes.md
        working-directory: src/github.com/containerd/containerd

      - name: Save release notes
        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v5.0.0
        with:
          name: containerd-release-notes
          path: src/github.com/containerd/containerd/release-notes.md

  release:
    name: Create containerd Release
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/api/v')
    permissions:
      contents: write
    runs-on: ubuntu-24.04
    timeout-minutes: 10
    needs: [check]
    steps:
      - name: Download release notes
        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
        with:
          path: builds
      - name: Create Release
        uses: softprops/action-gh-release@6da8fa9354ddfdc4aeace5fc48d7f679b5214090 # v2.4.1
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          fail_on_unmatched_files: true
          name: containerd API ${{ needs.check.outputs.stringver }}
          draft: false
          make_latest: false
          prerelease: ${{ contains(github.ref, 'beta') || contains(github.ref, 'rc') }}
          body_path: ./builds/release-notes.md
