docker.yml

name: Docker

on:
  push:
  pull_request:
  workflow_dispatch:

env:
  DOCKERHUB_IMAGE: kivy/buildozer
  GHCR_IMAGE: ghcr.io/kivy/buildozer
  SHOULD_PUBLISH: ${{ github.repository_owner == 'kivy' && github.event_name == 'push' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/')) }}

jobs:
  build:
    runs-on: ubuntu-24.04
    timeout-minutes: 60
    permissions:
      contents: read
      packages: write
    steps:
      - uses: actions/checkout@v6
      - uses: docker/setup-buildx-action@v4

      # Login to DockerHub
      - uses: docker/login-action@v4
        if: ${{ env.SHOULD_PUBLISH == 'true' }}
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      # Login to GHCR
      - uses: docker/login-action@v4
        if: ${{ env.SHOULD_PUBLISH == 'true' }}
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and Push Multi-platform Image
        uses: docker/build-push-action@v7
        with:
          push: ${{ env.SHOULD_PUBLISH == 'true' }}
          tags: |
            ${{ env.DOCKERHUB_IMAGE }}:latest
            ${{ env.GHCR_IMAGE }}:latest
          platforms: linux/amd64,linux/arm64

      - name: Local Build for Testing
        uses: docker/build-push-action@v7
        with:
          # Load image into local Docker daemon
          load: true
          tags: ${{ env.DOCKERHUB_IMAGE }}:latest
      # Run the locally built image to test it
      - name: Docker run
        run: |
          docker run ${{ env.DOCKERHUB_IMAGE }} --version
          docker run --rm --volume "$PWD":/home/user/hostcwd ${{ env.DOCKERHUB_IMAGE }} init

  update-readme:
    runs-on: ubuntu-24.04
    needs: build
    steps:
      - uses: actions/checkout@v6
      - uses: peter-evans/dockerhub-description@v5
        if: ${{ env.SHOULD_PUBLISH == 'true' }}
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
          repository: ${{ env.DOCKERHUB_IMAGE }}
          readme-filepath: README.md