docker-images.yml

name: Check Docker images

on:
  pull_request:
    paths:
      - Dockerfile
      - Dockerfile.windows
      - Makefile
      - 'tools/make/*'

jobs:
  # NOTE(rfratto): We only test building the Docker images for the host
  # platform, but we're really only looking for issues that are
  # architecture-independent.
  linux:
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4
      - name: Build image
        run: |
          docker build -t alloy-test:latest -f Dockerfile .

  windows:
    runs-on: windows-latest
    steps:
      - name: Create Dev Drive using ReFS
        run: |
          $Volume = New-VHD -Path C:/dev_drive.vhdx -SizeBytes 10GB |
                    Mount-VHD -Passthru |
                    Initialize-Disk -Passthru |
                    New-Partition -AssignDriveLetter -UseMaximumSize |
                    Format-Volume -FileSystem ReFS -Confirm:$false -Force
          Write-Output $Volume
          Write-Output "DEV_DRIVE=$($Volume.DriveLetter):" >> $env:GITHUB_ENV

      # actions/checkout does not let us clone anywhere outside the workspace
      # so we have to copy the clone repository into the Dev drive.
      - uses: actions/checkout@v4
      - name: Copy repo to Dev Drive
        run: |
          Copy-Item -Path "${{ github.workspace }}" -Destination "${{ env.DEV_DRIVE }}/work" -Recurse

      - name: Build image
        working-directory: ${{ env.DEV_DRIVE }}/work
        run: |
          docker build --help
          docker build -t alloy-test:latest --cache-from type=local,src=${{ env.DEV_DRIVE }}/.docker-cache -f Dockerfile.windows .