name: CI build Docker
# https://www.docker.com/blog/first-docker-github-action-is-here
# https://github.com/docker/build-push-action
# see: https://help.github.com/en/actions/reference/events-that-trigger-workflows
on: # Trigger the workflow on push or pull request, but only for the master branch
  push:
    branches: [master, "release/*"] # include release branches like release/1.0.x
  pull_request:
    branches: [master, "release/*"]
    paths:
      - "dockers/**"
      - "!dockers/README.md"
      - "requirements/*"
      - "environment.yml"
      - "requirements.txt"
      - ".github/workflows/*docker*.yml"
      - ".github/workflows/events-nightly.yml"
      - "setup.py"

jobs:
  build-PL:
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        python_version: [3.7]
        pytorch_version: [1.4, 1.8]
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Build PL Docker
        # publish master/release
        uses: docker/build-push-action@v2
        with:
          build-args: |
            PYTHON_VERSION=${{ matrix.python_version }}
            PYTORCH_VERSION=${{ matrix.pytorch_version }}
          file: dockers/release/Dockerfile
          push: false
        timeout-minutes: 50

  build-XLA:
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        python_version: [3.7]
        xla_version: [1.6, 1.8, "nightly"]
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Build XLA Docker
        # publish master/release
        uses: docker/build-push-action@v2
        with:
          build-args: |
            PYTHON_VERSION=${{ matrix.python_version }}
            XLA_VERSION=${{ matrix.xla_version }}
          file: dockers/base-xla/Dockerfile
          push: false
        timeout-minutes: 50

  build-cuda:
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        include:
          # todo: see notes in Dockerfile
          - python_version: 3.6
            pytorch_version: 1.4
          - python_version: 3.7
            pytorch_version: 1.7
          - python_version: 3.8
            pytorch_version: 1.8
          # - python_version: 3.9
          #   pytorch_version: 1.9
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      # for PT 1.4 we need to use CUDA 10.1
      - run: |
          cuda=$(python -c "print(10.2 if float(${{matrix.pytorch_version}}) >= 1.5 else 10.1)" 2>&1)
          echo "::set-output name=CUDA::$cuda"
        id: extend

      - name: Build CUDA Docker
        # publish master/release
        uses: docker/build-push-action@v2
        with:
          build-args: |
            PYTHON_VERSION=${{ matrix.python_version }}
            PYTORCH_VERSION=${{ matrix.pytorch_version }}
            CUDA_VERSION=${{ steps.extend.outputs.CUDA }}
          file: dockers/base-cuda/Dockerfile
          push: false
        timeout-minutes: 50

  build-conda:
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        include:
          - python_version: 3.6
            pytorch_version: 1.4
          - python_version: 3.7
            pytorch_version: 1.7
          - python_version: 3.8
            pytorch_version: 1.8
          - python_version: 3.9
            pytorch_version: 1.9
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      # for PT 1.3 and 1.4 we need to use CUDA 10.1
      - run: |
          cuda=$(python -c "print(10.2 if float(${{matrix.pytorch_version}}) > 1.4 else 10.1)" 2>&1)
          echo "::set-output name=CUDA::$cuda"
        id: extend

      - name: Build CUDA Docker
        # publish master/release
        uses: docker/build-push-action@v2
        with:
          build-args: |
            PYTHON_VERSION=${{ matrix.python_version }}
            PYTORCH_VERSION=${{ matrix.pytorch_version }}
            CUDA_VERSION=${{ steps.extend.outputs.CUDA }}
          file: dockers/base-conda/Dockerfile
          push: false
        timeout-minutes: 50

  build-nvidia:
    runs-on: ubuntu-20.04
    # todo: temporarily skip as the base container does not fit to agent
    if: false
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Build NVIDIA Docker
        uses: docker/build-push-action@v2
        with:
          file: dockers/nvidia/Dockerfile
          push: false
        timeout-minutes: 50