image.yaml

name: Image

# Put 'on' in quotes to avoid YAML parsing error
"on":
  # Enable manual triggering
  workflow_dispatch: {}
  # Run on commits to main branch
  push:
    branches:
      - main
    # Run only on changes to relevant files
    paths:
      - .github/workflows/image.yaml
      - plugins/**
      - scripts/**
      - src/**
      - .dockerignore
      - .env.python
      - Dockerfile
      - flake.lock
      - "*.nix"
      - poetry.lock
      - poetry.toml
      - pyproject.toml
  # Run also on pull requests to main branch
  pull_request:
    branches:
      - main
    # Run only on changes to relevant files
    paths:
      - .github/workflows/image.yaml
      - plugins/**
      - scripts/**
      - src/**
      - .dockerignore
      - .env.python
      - Dockerfile
      - flake.lock
      - "*.nix"
      - poetry.lock
      - poetry.toml
      - pyproject.toml

jobs:
  image:
    name: Build Docker image
    # Pin version of Ubuntu to avoid breaking changes
    runs-on: ubuntu-22.04
    # Use reasonable timeout to avoid stuck workflows
    timeout-minutes: 30
    permissions:
      # Needed to checkout code
      contents: read
    steps:
      - name: Checkout code
        uses: actions/checkout@v4.1.1
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3.1.0
      - name: Build Docker image
        uses: docker/build-push-action@v5.2.0
        with:
          context: ./
          # Don't save image
          outputs: type=cacheonly
          # Cache Docker layers between builds
          cache-from: type=gha,scope=${{ github.workflow }}
          cache-to: type=gha,mode=max,scope=${{ github.workflow }}