CICD.yml

name: CICD

on:
  push:
    branches: [ "develop" ]
  pull_request:
    branches: [ "develop" ]

permissions:
  contents: read

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
      with:
        submodules: recursive
        token: ${{ secrets.GIT_ACCESS_TOKEN }}
    - name: Set up JDK 17
      uses: actions/setup-java@v4
      with:
        java-version: '17'
        distribution: 'temurin'

    - name: Build with Gradle Wrapper
      run: |
        echo ${{ secrets.APPLICATION_SECRET }} | base64 --decode > ./config/application-secret.yml
        cat ./config/application-secret.yml
        ./gradlew build -x test

    - name: Login to DockerHub
      uses: docker/login-action@v1
      with:
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}

    - name: Build Docker
      run: docker build --platform linux/amd64 -f ./Dockerfile -t ${{ secrets.DOCKERHUB_USERNAME }}/plat_server . 
    - name: Push Docker
      run: docker push ${{ secrets.DOCKERHUB_USERNAME }}/plat_server:latest
        
  deploy:
    if: github.event_name == 'push'
    needs: build
    runs-on: ubuntu-latest
    steps:
      - name: Set target IP
        run: |
          STATUS=$(curl -o /dev/null -w "%{http_code}" "https://${{ secrets.PLAT_SERVER_DOMAIN }}/env")
          echo $STATUS
          if [ $STATUS = 200 ]; then
            CURRENT_UPSTREAM=$(curl -s "https://${{ secrets.PLAT_SERVER_DOMAIN }}/env")
          else
            CURRENT_UPSTREAM=green
          fi
          echo CURRENT_UPSTREAM=$CURRENT_UPSTREAM >> $GITHUB_ENV
          if [ $CURRENT_UPSTREAM = blue ]; then
            echo "CURRENT_PORT=8080" >> $GITHUB_ENV
            echo "STOPPED_PORT=8081" >> $GITHUB_ENV
            echo "TARGET_UPSTREAM=green" >> $GITHUB_ENV
          elif [ $CURRENT_UPSTREAM = green ]; then
            echo "CURRENT_PORT=8081" >> $GITHUB_ENV
            echo "STOPPED_PORT=8080" >> $GITHUB_ENV
            echo "TARGET_UPSTREAM=blue" >> $GITHUB_ENV
          else
            echo "error"
            exit 1
          fi
          
      - name: Docker compose
        uses: appleboy/ssh-action@master
        with:
          username: ubuntu
          host: ${{ secrets.PLAT_SERVER_IP }}
          key: ${{ secrets.EC2_SSH_KEY }}
          script_stop: true
          script: |
            sudo docker pull ${{ secrets.DOCKERHUB_USERNAME }}/plat_server:latest
            sudo docker-compose -f docker-compose-${{env.TARGET_UPSTREAM}}.yml up -d
      
      - name: Check deploy server URL
        uses: jtalk/url-health-check-action@v3
        with:
          url: http://${{ secrets.PLAT_SERVER_IP }}:${{env.STOPPED_PORT}}/env
          max-attempts: 5
          retry-delay: 10s

      - name: Change nginx upstream
        uses: appleboy/ssh-action@master
        with:
          username: ubuntu
          host: ${{ secrets.PLAT_SERVER_IP }}
          key: ${{ secrets.EC2_SSH_KEY }}
          script_stop: true
          script: |
            sudo docker exec -i plat-nginx-server bash -c 'echo "set \$service_url ${{ env.TARGET_UPSTREAM }};" > /etc/nginx/conf.d/service-env.inc && nginx -s reload' 

      - name: Stop current server
        uses: appleboy/ssh-action@master
        with:
          username: ubuntu
          host: ${{ secrets.PLAT_SERVER_IP }}
          key: ${{ secrets.EC2_SSH_KEY }}
          script_stop: true
          script: |
            sudo docker stop ${{env.CURRENT_UPSTREAM}}
            sudo docker rm ${{env.CURRENT_UPSTREAM}}