hometown/.github/workflows/build-container-image.yml

on:
  workflow_call:
    inputs:
      platforms:
        required: true
        type: string
      cache:
        type: boolean
        default: true
      use_native_arm64_builder:
        type: boolean
      push_to_images:
        type: string
      flavor:
        type: string
      tags:
        type: string
      labels:
        type: string

jobs:
  build-image:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - uses: docker/setup-qemu-action@v2
        if: contains(inputs.platforms, 'linux/arm64') && !inputs.use_native_arm64_builder

      - uses: docker/setup-buildx-action@v2
        id: buildx
        if: ${{ !(inputs.use_native_arm64_builder && contains(inputs.platforms, 'linux/arm64')) }}

      - name: Start a local Docker Builder
        if: inputs.use_native_arm64_builder && contains(inputs.platforms, 'linux/arm64')
        run: |
          docker run --rm -d --name buildkitd -p 1234:1234 --privileged moby/buildkit:latest --addr tcp://0.0.0.0:1234

      - uses: docker/setup-buildx-action@v2
        id: buildx-native
        if: inputs.use_native_arm64_builder && contains(inputs.platforms, 'linux/arm64')
        with:
          driver: remote
          endpoint: tcp://localhost:1234
          platforms: linux/amd64
          append: |
            - endpoint: tcp://${{ vars.DOCKER_BUILDER_HETZNER_ARM64_01_HOST }}:13865
              platforms: linux/arm64
              name: mastodon-docker-builder-arm64-01
              driver-opts:
                - servername=mastodon-docker-builder-arm64-01
        env:
          BUILDER_NODE_1_AUTH_TLS_CACERT: ${{ secrets.DOCKER_BUILDER_HETZNER_ARM64_01_CACERT }}
          BUILDER_NODE_1_AUTH_TLS_CERT: ${{ secrets.DOCKER_BUILDER_HETZNER_ARM64_01_CERT }}
          BUILDER_NODE_1_AUTH_TLS_KEY: ${{ secrets.DOCKER_BUILDER_HETZNER_ARM64_01_KEY }}

      - name: Log in to Docker Hub
        if: contains(inputs.push_to_images, 'tootsuite')
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Log in to the Github Container registry
        if: contains(inputs.push_to_images, 'ghcr.io')
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - uses: docker/metadata-action@v4
        id: meta
        if: ${{ inputs.push_to_images != '' }}
        with:
          images: ${{ inputs.push_to_images }}
          flavor: ${{ inputs.flavor }}
          tags: ${{ inputs.tags }}
          labels: ${{ inputs.labels }}

      - uses: docker/build-push-action@v4
        with:
          context: .
          platforms: ${{ inputs.platforms }}
          provenance: false
          builder: ${{ steps.buildx.outputs.name || steps.buildx-native.outputs.name }}
          push: ${{ inputs.push_to_images != '' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: ${{ inputs.cache && 'type=gha' || '' }}
          cache-to: ${{ inputs.cache && 'type=gha,mode=max' || '' }}