deploy-docker-image-on-release.yml

name: Create and publish a Docker image on Release

on:
  push:
    branches:
      - "main"
      - "**"
    tags:
      - "v*"
  pull_request:
    branches:
      - "main"

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

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

      - name: Build project
        uses: game-ci/unity-builder@v2
        env:
          UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
          UNITY_EMAIL: ${{ secrets.UNITY_EMAIL }}
          UNITY_PASSWORD: ${{ secrets.UNITY_PASSWORD }}
        with:
          targetPlatform: WebGL
          buildsPath: builds
          customImage: 'unityci/editor:2021.3.2f1-webgl-1'

      - name: Log in to the Container registry
        if: github.event_name != 'pull_request'
        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      - name: Build and push Docker image
        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
        with:
          context: .
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          
      # Temporary cleanup solution to prevent failing of next job.
      - name: Clean up GitHub workspace
        if: always()
        uses: docker://ubuntu:latest # 👈 Clean-up done in a Docker container 🐳
        with:
          args: find /github/workspace/. -name . -o -prune -exec rm -rf -- {} +