build_push_registry.yml

name: Selectively Build and Push to Artifact Registry

on:
  push:
    branches: ["master"]

env:
  PROJECT_ID: cs3219-400714
  REGION: asia-southeast1
  GAR_LOCATION: asia-southeast1-docker.pkg.dev/cs3219-400714/peerprep/

jobs:
  build-push-artifact:
    runs-on: ubuntu-latest
    outputs:
      should_deploy: ${{ steps.deploy.outputs.BUILD_STEP_RAN }}
    steps:
      - name: "Checkout"
        uses: "actions/checkout@v3"

      - name: Detect Changes in Microservices
        id: changes
        uses: dorny/paths-filter@v2
        with:
          filters: |
            frontend:
              - 'frontend/**'
            user_service:
              - 'user_service/**'
            question_service:
              - 'question_service/**'
            matching_service:
              - 'matching_service/**'
            collab_service:
              - 'collab_service/**'
            code_execution:
              - 'code_execution/**'
            api_gateway:
              - 'api_gateway/**'
            
              
      - name: 'Create env file'
        run: |
          echo "${{ secrets.ENV_FILE }}" > .env
      
      - name: "Set up google auth"
        id: auth
        uses: "google-github-actions/auth@v1"
        with:
          credentials_json: "${{ secrets.SERVICE_ACCOUNT_KEY }}"

      - name: "Set up Cloud SDK"
        uses: "google-github-actions/setup-gcloud@v1"

      - name: "Use gcloud CLI"
        run: "gcloud info"

      - name: "Docker auth"
        run: |-
          gcloud auth configure-docker ${{ env.REGION }}-docker.pkg.dev --quiet

      - name: 1. Build and Push frontend
        id: a
        if: steps.changes.outputs.frontend == 'true'
        run: |
          docker-compose build frontend
          docker-compose push frontend

      - name: 2. Build and Push question-service
        id: b
        if: steps.changes.outputs.question_service == 'true'
        run: |
          docker-compose build question-service
          docker-compose push question-service

      - name: 3. Build and Push user-service
        id: c
        if: steps.changes.outputs.user_service == 'true'
        run: |
          docker-compose build user-service
          docker-compose push user-service

      - name: 4. Build and Push matching-service
        id: d
        if: steps.changes.outputs.matching_service == 'true'
        run: |
          docker-compose build matching-service
          docker-compose push matching-service

      - name: 5. Build and Push collab-service
        id: e
        if: steps.changes.outputs.collab_service == 'true'
        run: |
          docker-compose build collab-service
          docker-compose push collab-service

      - name: 6. Build and Push code-execution
        id: f
        if: steps.changes.outputs.code_execution == 'true'
        run: |
          docker-compose build code-execution
          docker-compose push code-execution

      - name: 7. Build and Push api-gateway
        id: g
        if: steps.changes.outputs.api_gateway == 'true'
        run: |
          docker-compose build api-gateway
          docker-compose push api-gateway

      - name: determine deploy step
        id: deploy
        if: ${{ steps.a.conclusion == 'success' || steps.b.conclusion == 'success' || steps.c.conclusion == 'success' || steps.d.conclusion == 'success'  || steps.e.conclusion == 'success' || steps.f.conclusion == 'success' }}
        run: |
          echo "BUILD_STEP_RAN=true" >> $GITHUB_OUTPUT


  deploy:
    needs: build-push-artifact
    if: ${{needs.build-push-artifact.outputs.should_deploy== 'true'}}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: "Set up google auth"
        id: auth
        uses: "google-github-actions/auth@v1"
        with:
          credentials_json: "${{ secrets.SERVICE_ACCOUNT_KEY }}"

      - name: "Use gcloud CLI"
        run: "gcloud info"

      - name: "SSH to VM"
        id: 'compute-ssh'
        uses: 'google-github-actions/ssh-compute@v0'
        with:
          instance_name: 'peerprep-prod'
          zone: 'asia-southeast1-b'
          ssh_private_key: '${{ secrets.SSH_KEY }}'
          command: 'echo "${{ secrets.ENV_FILE }}" | sudo tee /usr/src/peerprep/.env > /dev/null && sudo chmod 777 /usr/src/peerprep/scripts/init.sh && sudo /usr/src/peerprep/scripts/init.sh'

      - id: 'test'
        run: |-
          echo '${{ steps.compute-ssh.outputs.stdout }}'
          echo '${{ steps.compute-ssh.outputs.stderr }}'