name: Runners

on:
  pull_request:
    types:
      - opened
      - synchronize
      - reopened
    branches:
      - 'master'
    paths:
      - 'runner/**'
      - '!runner/Makefile'
      - '.github/workflows/runners.yaml'
      - '!**.md'
  # We must do a trigger on a push: instead of a types: closed so GitHub Secrets 
  # are available to the workflow run
  push:
    branches:
      - 'master'
    paths:
      - 'runner/**'
      - '!runner/Makefile'
      - '.github/workflows/runners.yaml'
      - '!**.md'

env:
  RUNNER_VERSION: 2.294.0
  DOCKER_VERSION: 20.10.12
  RUNNER_CONTAINER_HOOKS_VERSION: 0.1.2
  DOCKERHUB_USERNAME: summerwind

jobs:
  build-runners:
    name: Build ${{ matrix.name }}-${{ matrix.os-name }}-${{ matrix.os-version }}
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: actions-runner
            os-name: ubuntu
            os-version: 20.04
          - name: actions-runner-dind
            os-name: ubuntu
            os-version: 20.04

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Setup Docker Environment
        id: vars
        uses: ./.github/actions/setup-docker-environment
        with:
          username: ${{ env.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKER_ACCESS_TOKEN }}
          ghcr_username: ${{ github.actor }}
          ghcr_password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and Push Versioned Tags
        uses: docker/build-push-action@v3
        with:
          context: ./runner
          file: ./runner/${{ matrix.name }}.dockerfile
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
          build-args: |
            RUNNER_VERSION=${{ env.RUNNER_VERSION }}
            DOCKER_VERSION=${{ env.DOCKER_VERSION }}
            RUNNER_CONTAINER_HOOKS_VERSION=${{ env.RUNNER_CONTAINER_HOOKS_VERSION }}
          tags: |
            ${{ env.DOCKERHUB_USERNAME }}/${{ matrix.name }}:v${{ env.RUNNER_VERSION }}-${{ matrix.os-name }}-${{ matrix.os-version }}
            ${{ env.DOCKERHUB_USERNAME }}/${{ matrix.name }}:v${{ env.RUNNER_VERSION }}-${{ matrix.os-name }}-${{ matrix.os-version }}-${{ steps.vars.outputs.sha_short }}
            ${{ env.DOCKERHUB_USERNAME }}/${{ matrix.name }}:latest
            ghcr.io/${{ github.repository }}/${{ matrix.name }}:latest
            ghcr.io/${{ github.repository }}/${{ matrix.name }}:v${{ env.RUNNER_VERSION }}-${{ matrix.os-name }}-${{ matrix.os-version }}
            ghcr.io/${{ github.repository }}/${{ matrix.name }}:v${{ env.RUNNER_VERSION }}-${{ matrix.os-name }}-${{ matrix.os-version }}-${{ steps.vars.outputs.sha_short }}
          cache-from: type=gha,scope=build-${{ matrix.name }}
          cache-to: type=gha,mode=max,scope=build-${{ matrix.name }}