container.yml

name: container

on:
  pull_request:
  push:
    branches:
      - main
      - 'release/**'
    tags:
      - 'v*'

concurrency:
  group: container-${{ github.ref }}
  cancel-in-progress: false

permissions:
  contents: read
  packages: write

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Static validation
        run: sh tests/static.sh
      - name: Build test image
        run: docker build --pull --tag cloudbot:test .
      - name: Smoke test
        run: sh scripts/smoke-test.sh cloudbot:test

  publish-edge-or-tag:
    if: github.event_name == 'push' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v'))
    needs: test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: docker/setup-qemu-action@v3
      - uses: docker/setup-buildx-action@v3
      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - id: meta
        uses: docker/metadata-action@v5
        with:
          images: ghcr.io/ploos-as/cloudbot
          tags: |
            type=raw,value=edge,enable=${{ github.ref == 'refs/heads/main' }}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=raw,value=latest,enable=${{ startsWith(github.ref, 'refs/tags/v') }}
      - uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            VERSION=${{ steps.meta.outputs.version }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          provenance: mode=max
          sbom: true

  publish-release-candidate:
    if: startsWith(github.ref, 'refs/heads/release/v')
    needs: test
    runs-on: ubuntu-latest
    outputs:
      tag: ${{ steps.version.outputs.tag }}
      version: ${{ steps.version.outputs.version }}
    steps:
      - uses: actions/checkout@v4
      - name: Resolve and validate release version
        id: version
        shell: bash
        run: |
          set -euo pipefail
          tag="${GITHUB_REF_NAME#release/}"
          version="${tag#v}"
          minor="${version%.*}"
          test "$tag" = "v$(cat VERSION)"
          test -s "docs/releases/${tag}.md"
          echo "tag=${tag}" >> "$GITHUB_OUTPUT"
          echo "version=${version}" >> "$GITHUB_OUTPUT"
          echo "minor=${minor}" >> "$GITHUB_OUTPUT"
      - name: Ensure release tag does not already exist
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TAG: ${{ steps.version.outputs.tag }}
        run: |
          if gh api "repos/${GITHUB_REPOSITORY}/git/ref/tags/${TAG}" >/dev/null 2>&1; then
            echo "Tag ${TAG} already exists" >&2
            exit 1
          fi
      - uses: docker/setup-qemu-action@v3
      - uses: docker/setup-buildx-action@v3
      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - id: meta
        uses: docker/metadata-action@v5
        with:
          images: ghcr.io/ploos-as/cloudbot
          tags: |
            type=raw,value=${{ steps.version.outputs.version }}
            type=raw,value=${{ steps.version.outputs.minor }}
            type=raw,value=latest
      - uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            VERSION=${{ steps.version.outputs.version }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          provenance: mode=max
          sbom: true

  finalize-release-candidate:
    if: startsWith(github.ref, 'refs/heads/release/v')
    needs: publish-release-candidate
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
      - name: Create immutable Git tag
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TAG: ${{ needs.publish-release-candidate.outputs.tag }}
        run: |
          gh api --method POST "repos/${GITHUB_REPOSITORY}/git/refs" \
            -f ref="refs/tags/${TAG}" \
            -f sha="${GITHUB_SHA}"
      - name: Create GitHub release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TAG: ${{ needs.publish-release-candidate.outputs.tag }}
        run: |
          gh release create "${TAG}" \
            --verify-tag \
            --title "CloudBot container ${TAG}" \
            --notes-file "docs/releases/${TAG}.md"

  release-from-tag:
    if: startsWith(github.ref, 'refs/tags/v')
    needs: publish-edge-or-tag
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
      - name: Validate release notes
        run: test -s "docs/releases/${GITHUB_REF_NAME}.md"
      - name: Create GitHub release if missing
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh release view "${GITHUB_REF_NAME}" >/dev/null 2>&1 || \
            gh release create "${GITHUB_REF_NAME}" \
              --verify-tag \
              --title "CloudBot container ${GITHUB_REF_NAME}" \
              --notes-file "docs/releases/${GITHUB_REF_NAME}.md"