name: Docker Build

on: pull_request

permissions:
  contents: read
  packages: write

jobs:
  build:
    name: Docker Build and Push
    if: contains(github.event.pull_request.labels.*.name, 'documentation') != true
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          ref: ${{ github.ref }}
          clean: true
          fetch-depth: 0

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v3
        with:
          context: docker
          push: true
          tags: ghcr.io/${{ github.repository }}/vmpooler:pr${{ github.event.pull_request.number }}-${{ github.event.pull_request.head.sha }}