ci.yml

name: build

on:
  push:
    branches: [main]
  pull_request:

jobs:
  build:
    runs-on: ubuntu-latest

    env:
      NGINX_VERSION: 1.27.2

    steps:
      - uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: docker login to docker.io
        uses: docker/login-action@v2
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        with:
          registry: docker.io
          username: zengxs
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Setup binfmt-support
        uses: docker/setup-qemu-action@v3

      - name: Setup docker buildx
        uses: docker/setup-buildx-action@v3

      - name: Generate push tags
        run: >-
          python3 .github/workflows/generate-tags.py
          --image-name docker.io/zengxs/nginx
          --nginx-version ${{ env.NGINX_VERSION }}
          --env-name PUSH_TAGS
          >> $GITHUB_ENV

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          push: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
          tags: ${{ env.PUSH_TAGS }}
          # Only build multi-platform images on push to Docker Hub for reducing build time
          platforms: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' && 'linux/amd64,linux/arm64' || 'linux/amd64' }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            NGINX_VERSION=${{ env.NGINX_VERSION }}