docker.yml

name: docker

on:
  schedule:
    - cron: "0 10 * * *" # everyday at 10am
  push:
    branches: ["master", "release-*"]
    tags: ["v*.*.*"]

jobs:
  start-runner:
    name: Start self-hosted EC2 runner
    if: >
      github.event_name == 'schedule' && github.repository == 'ludwig-ai/ludwig' ||
      github.event_name == 'push' && github.repository == 'ludwig-ai/ludwig' ||
      github.event_name == 'pull_request' && github.event.pull_request.base.repo.full_name == 'ludwig-ai/ludwig' && !github.event.pull_request.head.repo.fork
    runs-on: ubuntu-latest
    outputs:
      label: ${{ steps.start-ec2-runner.outputs.label }}
      ec2-instance-id: ${{ steps.start-ec2-runner.outputs.ec2-instance-id }}

    steps:
      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v1
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ secrets.AWS_REGION }}

      - name: Start EC2 runner
        id: start-ec2-runner
        uses: machulav/ec2-github-runner@v2.3.2
        with:
          mode: start
          github-token: ${{ secrets.GH_PERSONAL_ACCESS_TOKEN }}
          ec2-image-id: ami-0759580dedc953d1f
          ec2-instance-type: r5.large
          subnet-id: subnet-0983be43
          security-group-id: sg-4cba0d08
          aws-resource-tags: >
            [
              {"Key": "Name", "Value": "ludwig-github-${{ github.head_ref || github.sha }}"},
              {"Key": "GitHubRepository", "Value": "${{ github.repository }}"},
              {"Key": "GitHubHeadRef", "Value": "${{ github.head_ref }}"},
              {"Key": "GitHubSHA", "Value": "${{ github.sha }}"}
            ]

  docker:
    name: Build docker image ${{ matrix.docker-image }} (push=${{ github.event_name != 'pull_request' }})
    if: needs.start-runner.result != 'skipped'
    needs: start-runner # required to start the main job when the runner is ready
    runs-on: ${{ needs.start-runner.outputs.label }} # run the job on the newly created runners

    # we want an ongoing run of this workflow to be canceled by a later commit
    # so that there is only one concurrent run of this workflow for each branch
    concurrency:
      group: docker-${{ matrix.docker-image }}-${{ github.head_ref || github.sha }}
      cancel-in-progress: true

    strategy:
      fail-fast: false
      matrix:
        docker-image:
          - ludwig
          - ludwig-gpu
          - ludwig-ray
          - ludwig-ray-gpu

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Docker meta
        id: meta
        uses: crazy-max/ghaction-docker-meta@v2
        with:
          # list of Docker images to use as base name for tags
          images: |
            ludwigai/${{ matrix.docker-image }}
          # generate Docker tags based on the following events/attributes
          tags: |
            type=schedule
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=sha

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Login to DockerHub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          file: ./docker/${{ matrix.docker-image }}/Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

  stop-runner:
    name: Stop self-hosted EC2 runner

    # required to stop the runner even if the error happened in the previous job
    if: always() && needs.start-runner.result != 'skipped'
    needs:
      - start-runner # required to get output from the start-runner job
      - docker # required to wait when the main job is done
    runs-on: ubuntu-latest

    steps:
      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v1
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{ secrets.AWS_REGION }}

      - name: Stop EC2 runner
        uses: machulav/ec2-github-runner@v2.3.2
        with:
          mode: stop
          github-token: ${{ secrets.GH_PERSONAL_ACCESS_TOKEN }}
          label: ${{ needs.start-runner.outputs.label }}
          ec2-instance-id: ${{ needs.start-runner.outputs.ec2-instance-id }}