develop-pr-gae.yaml

name: 'Build Image on PR Creation ~ Optional: Deploy Preview Instances'

on:
  pull_request:
    types:
      - 'opened'
      - 'synchronize'
      - 'reopened'
      - 'closed'
    branches:
      - 'develop'

jobs:
  build-image-no-deploy:
    name: 'Build Image Without Deploy - No Preview'
    runs-on: ubuntu-latest
    if: ${{ (github.event.action != 'closed') && (startsWith(github.head_ref, 'preview') == false) }}

    # Checkout the repository to the GitHub Actions runner
    steps:
    - name: Checkout
      uses: actions/checkout@v2

    # gcloud CLI setup
    - name: Login to GCP
      uses: google-github-actions/setup-gcloud@v0
      with:
        service_account_key: ${{ secrets.DEV_SA_KEY }}
        project_id: skyviewer
        export_default_credentials: true
    
    - name: Get secret to create .env
      run: gcloud secrets versions access latest --secret=investigations-api-env > ./api/.env

    - name: Setup docker build
      uses: docker/setup-buildx-action@v2
      id: buildx
      with:
        install: true

    - name: Build client, but don't deploy
      run: docker build . 

  build-push-deploy:
    name: 'Build Image and Deploy Preview Version'
    runs-on: ubuntu-latest
    if: ${{ (github.event.action != 'closed') && (startsWith(github.head_ref, 'preview') == true) }}

    # Checkout the repository to the GitHub Actions runner
    steps:
    - name: Checkout
      uses: actions/checkout@v2

    # gcloud CLI setup
    - name: Login to GCP
      uses: google-github-actions/setup-gcloud@v0
      with:
        service_account_key: ${{ secrets.DEV_SA_KEY }}
        project_id: skyviewer
        export_default_credentials: true
    
    - name: Get app.yaml
      run: gcloud secrets versions access latest --secret=investigations-api-appyaml > app.yaml

    - name: Format version name
      id: version_name
      run: echo "version_name=$(echo \"${{ github.head_ref }}\" | tr -cd '[:alnum:]' | tr '[:upper:]' '[:lower:]' | tr -d 'preview')" >> $GITHUB_ENV

    - name: Deploy to App Engine
      env:
        BRANCH_NAME: ${{ env.version_name }}
      run: |
        gcloud app deploy app.yaml \
        --no-promote \
        --version=${BRANCH_NAME,,}

     # Create or update a comment with the URL
    - name: Find Comment
      uses: peter-evans/find-comment@v1
      id: fc
      with:
        issue-number: ${{ github.event.pull_request.number }}
        comment-author: 'github-actions[bot]'
        body-includes: A preview of this PR

    - name: Create or update a comment with the URL to the PR
      uses: peter-evans/create-or-update-comment@v1
      with:
        comment-id: ${{ steps.fc.outputs.comment-id }}
        issue-number: ${{ github.event.pull_request.number }}
        body: |
          A purreview of this PR will be available at https://${{ github.head_ref }}-dot-investigations-api-dot-skyviewer.uw.r.appspot.com until the request is closed. :cat2:
        reactions: '+1'
        edit-mode: replace

  cleanup:
    name: 'Cleanup PR Preview'
    runs-on: ubuntu-latest
    if: ${{ (github.event.action == 'closed') && (startsWith(github.head_ref, 'preview') == true) }}

    # Checkout the repository to the GitHub Actions runner
    steps:
    - name: Checkout
      uses: actions/checkout@v2

    # gcloud CLI setup
    - name: Login to GCP
      uses: google-github-actions/setup-gcloud@v0
      with:
        service_account_key: ${{ secrets.DEV_SA_KEY }}
        project_id: skyviewer
        export_default_credentials: true        

    # Destruct!
    - name: Destroy version
      env:
        BRANCH_NAME: ${{ env.version_name }}
      run: gcloud app versions delete ${BRANCH_NAME,,} --service=investigations-api