be_cd-test.yml

name: Coduo Backend Test Server CD

on:
  push:
    branches: [ "BE/test" ]

jobs:
  build:
    environment: test
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: ./backend
    steps:
      - name: checkout
        uses: actions/checkout@v4

      - name: Set up JDK 17
        uses: actions/setup-java@v4
        with:
          java-version: '17'
          distribution: 'corretto'

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v3
        with:
          cache-write-only: true

      - name: Grant Execute Permission For Gradlew
        run: chmod +x gradlew

      - name: Build with Gradle
        run: ./gradlew bootJar

      - name: Login to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKER_HUB_ID }}
          password: ${{ secrets.DOCKER_HUB_PASSWORD }}

      - name: Image build and push
        run: |
          docker build --build-arg PROFILE=test --build-arg DEPENDENCY=build/dependency -t ${{ secrets.DOCKER_REPO_NAME }}/springboot-app:test-latest --platform linux/amd64 .
          docker push ${{ secrets.DOCKER_REPO_NAME }}/springboot-app:test-latest

      - name: Upload docker-compose yaml script to artifact
        uses: actions/upload-artifact@v4
        with:
          name: docker-compose
          path: ${{ github.workspace }}/backend/be_app-docker-compose.yml

  deploy:
    environment: test
    runs-on: ${{ matrix.instance }}
    needs: build
    strategy:
      matrix:
        instance: [ "test-ec2-runner-a", "test-ec2-runner-b" ]
    defaults:
      run:
        working-directory: ./backend
    steps:
      - name: Set docker-compose YAML script to runner
        uses: actions/download-artifact@v4
        with:
          name: docker-compose
          path: ${{ github.workspace }}/backend

      - name: Move docker-compose YAML
        run: |
          sudo mv be_app-docker-compose.yml ${{ secrets.DOCKER_COMPOSE_YAML_PATH }}/

      - name: Run deploy script
        run: |
          chmod +x ./deploy.sh
          source ./deploy.sh
          echo "BLUE_PORT=$BLUE_PORT" >> $GITHUB_ENV
          echo "GREEN_PORT=$GREEN_PORT" >> $GITHUB_ENV

      - name: Extract secrets as .be_app-env file
        run: |
          if [ "${{ matrix.instance }}" = "test-ec2-runner-a" ]; then
            INSTANCE_NAME=${{ secrets.INSTANCE_A_NAME }}
          elif [ "${{ matrix.instance }}" = "test-ec2-runner-b" ]; then
            INSTANCE_NAME=${{ secrets.INSTANCE_B_NAME }}
          else
            echo "Unknown instance: ${{ matrix.instance }}"
            exit 1
          fi
          
          cat <<EOF > ${{ secrets.DOCKER_COMPOSE_YAML_PATH }}/.be_app-env

          # Docker Hub info from Github Secrets
          DOCKER_REPO_NAME=${{ secrets.DOCKER_REPO_NAME }}
          DOCKER_IMAGE_VERSION=test-latest

          # DB Configuration secrets info from Github Secrets
          MYSQL_TIME_ZONE=${{ secrets.MYSQL_TIME_ZONE }}
          DB_BINDING_PORT=${{ secrets.DB_BINDING_PORT }}          
          MASTER_DB_URL=${{ secrets.TEST_SERVER_MASTER_DB_URL }}
          MASTER_DB_USERNAME=${{ secrets.TEST_SERVER_DB_USERNAME }}
          MASTER_DB_PASSWORD=${{ secrets.TEST_SERVER_DB_PASSWORD }}
          SLAVE_DB_URL=${{ secrets.TEST_SERVER_SLAVE_DB_URL }}
          SLAVE_DB_USERNAME=${{ secrets.TEST_SERVER_DB_USERNAME }}
          SLAVE_DB_PASSWORD=${{ secrets.TEST_SERVER_DB_PASSWORD }}
          DDL_AUTO=${{ secrets.TEST_DDL_AUTO }}

          # OAUTH & JWT
          CLIENT_ID=${{ secrets.TEST_CLIENT_ID }}
          CLIENT_SECRET=${{ secrets.TEST_CLIENT_SECRET }}
          CLIENT_REDIRECT_URI=${{ secrets.TEST_CLIENT_REDIRECT_URI }}
          JWT_KEY=${{ secrets.JWT_KEY}}
          
          # INSTANCE NAME
          INSTANCE_NAME=$INSTANCE_NAME
          
          # Server App
          BLUE_SERVER_BINDING_PORT=${BLUE_PORT}
          GREEN_SERVER_BINDING_PORT=${GREEN_PORT}
          SERVER_LOGS_PATH=${{ secrets.SERVER_LOGS_PATH }}
          EOF

      - name: remove old spring-app image
        run: |
          sudo docker image rm -f ${{ secrets.DOCKER_REPO_NAME }}/springboot-app:test-latest;

      - name: Start the new (green/blue) environment
        run: |
          sudo docker-compose --env-file ${{ secrets.DOCKER_COMPOSE_YAML_PATH }}/.be_app-env -f ${{ secrets.DOCKER_COMPOSE_YAML_PATH }}/be_app-docker-compose.yml -p $GREEN_PORT up -d

      - name: Wait for new environment to be healthy
        run: |
          timeout=30
          while ! curl -sf http://localhost:${GREEN_PORT}/api/actuator/health | grep "UP"; do
            ((timeout--))
            if [ $timeout -le 0 ]; then
              echo "Health check timed out" >&2
              exit 1
            fi
            sleep 5
          done

      - name: Reload NGINX 
        run: |
          sudo systemctl reload nginx

      - name: Stop and remove the old environment
        run: |
          sudo docker-compose --env-file ${{ secrets.DOCKER_COMPOSE_YAML_PATH }}/.be_app-env -f ${{ secrets.DOCKER_COMPOSE_YAML_PATH }}/be_app-docker-compose.yml -p $BLUE_PORT down

      - name: Delete Dangling docker images
        run: |
          sudo docker image prune -a -f