actions/.github/workflows/build-testing-image.yml

---
# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
name: Build Testing Docker Image

on:
  push:
    branches:
      - main
    paths:
      - '_tools/docker-testing-tools/**'
      - '.github/workflows/build-testing-image.yml'
  pull_request:
    branches:
      - main
    paths:
      - '_tools/docker-testing-tools/**'
      - '.github/workflows/build-testing-image.yml'
  workflow_dispatch:
    inputs:
      tag:
        description: 'Docker image tag'
        required: false
        default: 'latest'
        type: string

permissions:
  contents: read
  packages: write

jobs:
  build-and-push:
    name: Build and Push Testing Image
    runs-on: ubuntu-latest
    timeout-minutes: 20

    steps:
      - name: Checkout repository
        uses: actions/checkout@71cf2267d89c5cb81562390fa70a37fa40b1305e # v6-beta

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5.10.0
        with:
          images: ghcr.io/${{ github.repository_owner }}/actions
          tags: |
            type=ref,event=branch,suffix=-testing-tools
            type=ref,event=pr,suffix=-testing-tools
            type=raw,value=testing-tools,enable={{is_default_branch}}
            type=raw,value=${{ github.event.inputs.tag }},enable=${{ github.event.inputs.tag != '' }}

      - name: Build and push Docker image
        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
        with:
          context: _tools/docker-testing-tools
          file: _tools/docker-testing-tools/Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          platforms: linux/amd64,linux/arm64

      - name: Test image
        if: github.event_name != 'pull_request'
        run: |
          # Test the built image works correctly
          docker run --rm ghcr.io/${{ github.repository_owner }}/actions:testing-tools shellspec --version
          docker run --rm ghcr.io/${{ github.repository_owner }}/actions:testing-tools act --version
          docker run --rm ghcr.io/${{ github.repository_owner }}/actions:testing-tools trivy --version

      - name: Generate image summary
        if: github.event_name != 'pull_request'
        run: |
          {
            echo "## 🐋 Docker Image Built Successfully"
            echo ""
            echo "**Image**: \`ghcr.io/${{ github.repository_owner }}/actions:testing-tools\`"
            echo "**Tags**: ${{ steps.meta.outputs.tags }}"
            echo ""
            echo "### Usage in GitHub Actions"
            echo ""
            echo "\`\`\`yaml"
            echo "jobs:"
            echo "  test:"
            echo "    runs-on: ubuntu-latest"
            echo "    container: ghcr.io/${{ github.repository_owner }}/actions:testing-tools"
            echo "    steps:"
            echo "      - uses: actions/checkout@v5"
            echo "      - run: shellspec _tests/unit/your-action/"
            echo "\`\`\`"
            echo ""
            echo "### Pre-installed Tools"
            echo "- ShellSpec"
            echo "- nektos/act (latest)"
            echo "- Trivy security scanner (latest)"
            echo "- TruffleHog secrets scanner (latest)"
            echo "- actionlint (latest)"
            echo "- shellcheck, jq, kcov, GitHub CLI"
            echo "- Node.js LTS, Python 3, build tools"
          } >> "$GITHUB_STEP_SUMMARY"