reusable-builder.yml

name: Reusable Image Builder

on:
  workflow_call:
    inputs:
      name:
        required: true
        type: string
      version:
        required: true
        type: string
      dockerfile:
        required: true
        type: string
      build-args:
        required: false
        default: ""
        type: string
      build-platforms:
        required: false
        default: linux/amd64,linux/arm64
        type: string

jobs:
  build-image:
    name: Build ${{ inputs.dockerfile }}
    runs-on: ubuntu-22.04
    steps:
      -
        name: Checkout
        uses: actions/checkout@v3
      -
        name: Login to Github Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v2
      -
        name: Build ${{ inputs.dockerfile }}
        uses: docker/build-push-action@v4
        with:
          context: .
          file: ${{ inputs.dockerfile }}
          tags: ghcr.io/paperless-ngx/builder/${{ inputs.name }}:${{ inputs.version }}
          platforms: ${{ inputs.build-platforms }}
          build-args: ${{ inputs.build-args }}
          push: true
          cache-from: ghcr.io/paperless-ngx/builder/cache/${{ inputs.name }}:${{ inputs.version }}
          cache-to: ghcr.io/paperless-ngx/builder/cache/${{ inputs.name }}:${{ inputs.version }}
      -
        name: Package built files
        run: |

          for platform in "linux/amd64" "linux/arm64"
          do
            if [ ${platform} = "linux/amd64" ]; then
              short_name="amd64"
            elif [ ${platform} = "linux/arm64" ]; then
              short_name="arm64"
            else
              short_name="armv7"
            fi

            docker pull --quiet --platform ${platform} ghcr.io/paperless-ngx/builder/${{ inputs.name }}:${{ inputs.version }}

            docker create --platform ${platform} --name extract-container ghcr.io/paperless-ngx/builder/${{ inputs.name }}:${{ inputs.version }}

            mkdir --verbose --parents ${{ inputs.name }}/${{ inputs.version }}/${short_name}

            docker cp extract-container:/usr/src/${{ inputs.name }}/ ${{ inputs.name }}/${{ inputs.version }}/${short_name}/

            mv --verbose ${{ inputs.name }}/${{ inputs.version }}/${short_name}/${{ inputs.name }}/* ${{ inputs.name }}/${{ inputs.version }}/${short_name}/

            docker rm --force extract-container

          done
      -
        name: Upload files
        uses: actions/upload-artifact@v3
        with:
          name: ${{ inputs.name }}-${{ inputs.version }}
          path: ${{ inputs.name }}/
          if-no-files-found: error
          retention-days: 1