name: 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:
        # the config used in '.azure-pipelines/gpu-tests.yml' since the Dockerfile uses the cuda image
        python_version: ["3.7"]
        pytorch_version: ["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:
        # the config used in '.circleci/config.yml`'
        python_version: ["3.7"]
        xla_version: ["1.8"]
    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: 60

  build-CUDA:
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        # the config used in '.azure-pipelines/gpu-tests.yml'
        python_version: ["3.7"]
        pytorch_version: ["1.8"]
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - 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 }}
          file: dockers/base-cuda/Dockerfile
          push: false
        timeout-minutes: 75

  build-Conda:
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        # the config used in '.github/workflows/ci_test-conda.yml'
        python_version: ["3.8"]
        pytorch_version: ["1.7", "1.8", "1.9", "1.10"]
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - run: |
          cuda=$(python -c "from distutils.version import LooseVersion as LVer ; print(11.1 if LVer('${{matrix.pytorch_version}}') > LVer('1.7') else 10.2)" 2>&1)
          echo "::set-output name=CUDA::$cuda"
        id: extend
      - name: Build Conda Docker
        # publish master/release
        uses: docker/build-push-action@v2
        with:
          build-args: |
            PYTHON_VERSION=${{ matrix.python_version }}
            PYTORCH_VERSION=${{ matrix.pytorch_version }}
            CUDA_VERSION=${{ steps.extend.outputs.CUDA }}
          file: dockers/base-conda/Dockerfile
          push: false
        timeout-minutes: 75

  build-ipu:
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix:
        # the config used in 'dockers/ipu-ci-runner/Dockerfile'
        python_version: ["3.9"]  # latest
        # TODO: upgrade - PopTorch 2.2 uses torch 1.9, see:
        # https://docs.graphcore.ai/projects/poptorch-user-guide/en/latest/installation.html#version-compatibility
        pytorch_version: ["1.7"]
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Build IPU Docker
        uses: docker/build-push-action@v2
        with:
          build-args: |
            PYTHON_VERSION=${{ matrix.python_version }}
            PYTORCH_VERSION=${{ matrix.pytorch_version }}
          file: dockers/base-ipu/Dockerfile
          push: false
          tags: pytorchlightning/pytorch_lightning:base-ipu-py${{ matrix.python_version }}-torch${{ matrix.pytorch_version }}
        timeout-minutes: 50

      - name: Build IPU CI runner Docker
        uses: docker/build-push-action@v2
        with:
          build-args: |
            PYTHON_VERSION=${{ matrix.python_version }}
            PYTORCH_VERSION=${{ matrix.pytorch_version }}
          file: dockers/ipu-ci-runner/Dockerfile
          push: false
        timeout-minutes: 60