appwrite/.github/workflows/preview.yml

name: Build Images and Handle Uffizzi Previews.

on:
  pull_request:
    types: [opened,reopened,synchronize,closed]

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

jobs:
  build-image:
    name: Build and Push image
    runs-on: ubuntu-22.04
    permissions:
      contents: read
      packages: write
    outputs:
      # You'll need this output later to render the Compose file.
      tags: ${{ steps.meta.outputs.tags }}
    steps:
      - name: Login to Container registry
        uses: docker/login-action@v1
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      
      - name: Checkout git repo
        uses: actions/checkout@v3

      - name: Docker metadata
        id: meta
        uses: docker/metadata-action@v3
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
      
      - name: Build and Push Image to Docker Hub
        uses: docker/build-push-action@v2
        with:
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

  render-compose-file:
    name: Render Docker Compose File
    runs-on: ubuntu-22.04
    needs:
      - build-image
    outputs:
      compose-file-cache-key: ${{ steps.hash.outputs.hash }}
      compose-file-cache-path: docker-compose.rendered.yml
    steps:
      - name: Checkout git repo
        uses: actions/checkout@v3
      - name: Render Compose File
        run: |
          IMAGE=$(echo ${{ needs.build-image.outputs.tags }})
          export IMAGE
          # Render simple template from environment variables.
          envsubst < docker-compose.template.yml > docker-compose.rendered.yml
          cat docker-compose.rendered.yml
      - name: Hash Rendered Compose File
        id: hash
        run: echo "::set-output name=hash::$(md5sum docker-compose.rendered.yml | awk '{ print $1 }')"
      - name: Cache Rendered Compose File
        uses: actions/cache@v3
        with:
          path: docker-compose.rendered.yml
          key: ${{ steps.hash.outputs.hash }}

  deploy-uffizzi-preview:
    name: Use Remote Workflow to Preview on Uffizzi
    needs: render-compose-file
    uses: UffizziCloud/preview-action/.github/workflows/reusable.yaml@v2
    if: ${{ github.event_name == 'pull_request' && github.event.action != 'closed' }}
    with:
      compose-file-cache-key: ${{ needs.render-compose-file.outputs.compose-file-cache-key }}
      compose-file-cache-path: ${{ needs.render-compose-file.outputs.compose-file-cache-path }}
      server: https://app.uffizzi.com/
    secrets:
      access-token: ${{ secrets.GITHUB_TOKEN }}
    permissions:
      contents: read
      pull-requests: write
      id-token: write

  delete-uffizzi-preview:
    name: Use Remote Workflow to Delete an Existing Preview
    uses: UffizziCloud/preview-action/.github/workflows/reusable.yaml@v2
    if: ${{ github.event_name == 'pull_request' && github.event.action == 'closed' }}
    with:
      compose-file-cache-key: ''
      compose-file-cache-path: docker-compose.rendered.yml
      server: https://app.uffizzi.com/
    permissions:
      contents: read
      pull-requests: write
      id-token: write