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path: root/.github/workflows/build-containers.yml
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# Generate the containers that we use for builds.
name: Build Containers

on:
  workflow_call:

env:
  docker-registry: ghcr.io
  docker-config-path: source/ci/docker

jobs:
  # Build the docker container images that we will use for our Linux
  # builds.  This will identify the last commit to the repository that
  # updated the docker images, and try to download the image tagged with
  # that sha.  If it does not exist, we'll do a docker build and push
  # the image up to GitHub Packages for the actual CI/CD runs.  We tag
  # with both the sha and "latest" so that the subsequent runs need not
  # know the sha.  Only do this on CI builds (when the event is a "push")
  # because PR builds from forks lack permission to write packages.
  containers:
    strategy:
      matrix:
        container:
        - name: xenial
        - name: bionic
        - name: focal
        - name: docurium
        - name: bionic-x86
          dockerfile: bionic
          base: multiarch/ubuntu-core:x86-bionic
          qemu: true
        - name: bionic-arm32
          dockerfile: bionic
          base: multiarch/ubuntu-core:armhf-bionic
          qemu: true
        - name: bionic-arm64
          dockerfile: bionic
          base: multiarch/ubuntu-core:arm64-bionic
          qemu: true
        - name: centos7
        - name: centos8
    runs-on: ubuntu-latest
    name: "Create container: ${{ matrix.container.name }}"
    steps:
    - name: Check out repository
      uses: actions/checkout@v3
      with:
        path: source
        fetch-depth: 0
      if: github.event_name != 'pull_request'
    - name: Setup QEMU
      run: docker run --rm --privileged multiarch/qemu-user-static:register --reset
      if: matrix.container.qemu == true
    - name: Download existing container
      run: |
        "${{ github.workspace }}/source/ci/getcontainer.sh" "${{ matrix.container.name }}" "${{ matrix.container.dockerfile }}"
      env:
        DOCKER_REGISTRY: ${{ env.docker-registry }}
        GITHUB_TOKEN: ${{ secrets.github_token }}
      working-directory: ${{ env.docker-config-path }}
      if: github.event_name != 'pull_request'
    - name: Build and publish image
      run: |
        if [ "${{ matrix.container.base }}" != "" ]; then
          BASE_ARG="--build-arg BASE=${{ matrix.container.base }}"
        fi
        docker build -t ${{ env.docker-registry-container-sha }} --build-arg UID=$(id -u) --build-arg GID=$(id -g) ${BASE_ARG} -f ${{ env.dockerfile }} .
        docker tag ${{ env.docker-registry-container-sha }} ${{ env.docker-registry-container-latest }}
        docker push ${{ env.docker-registry-container-sha }}
        docker push ${{ env.docker-registry-container-latest }}
      working-directory: ${{ env.docker-config-path }}
      if: github.event_name != 'pull_request' && env.docker-container-exists != 'true'