publish.yml

---
name: Publish

on:
  push:
    branches:
      - stable
      - mainline
    tags:
      - v[0-9]+.[0-9]+.[0-9]+

env:
  IMAGE_NAME: fholzer/nginx-brotli

jobs:
  build-test-and-publish:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5.5.1
        with:
          images: ${{ env.IMAGE_NAME }}
          flavor: |
            latest=false
          tags: |
            type=raw,priority=1000,value=latest,enable=${{ github.ref == format('refs/heads/{0}', github.event.repository.default_branch) }}
            type=raw,priority=1000,value=mainline-latest,enable=${{ github.ref == 'refs/heads/mainline' }}
            type=match,priority=600,pattern=^(v\d+\.\d+\.\d+)$,group=0

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3.0.0

      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v3.0.0

      - name: Build amd64 image
        uses: docker/build-push-action@v5.0.0
        with:
          builder: ${{ steps.buildx.outputs.name }}
          context: .
          platforms: linux/amd64
          push: false
          tags: ${{ steps.meta.outputs.tags }}
          load: true
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: List images
        run: |
          docker images

      - name: Test
        run: |
          docker run --rm -v $(pwd)/tests.sh:/tests.sh --entrypoint sh ${{ env.IMAGE_NAME }} /tests.sh

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        if: github.event_name != 'pull_request'
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}


      - name: Build and publish multi-platform images
        uses: docker/build-push-action@v5.0.0
        with:
          builder: ${{ steps.buildx.outputs.name }}
          context: .
          platforms: linux/amd64,linux/arm64,linux/ppc64le
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          cache-from: type=gha
          cache-to: type=gha,mode=max