deploy.yml

name: Deploy to GCP Compute Engine

on:
#  push:
#    branches: [ develop ]
#    paths-ignore:
#      - 'api/src/docs/asciidoc/**'
#      - '.github/workflows/docs.yml'
  workflow_dispatch:

concurrency:
  group: build-and-deploy
  cancel-in-progress: true

jobs:
  build-and-deploy:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Create application.yml in api module
        run: |
          mkdir -p api/src/main/resources
          echo "${{ secrets.APPLICATION_DEV }}" > api/src/main/resources/application.yml
          echo "✅ application.yml created successfully"
          ls -la api/src/main/resources/

      - name: Create .env
        run: |
          echo "${{ secrets.ENV_FILE }}" > .env
          echo "✅ .env file created successfully"

      - name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: |
            ${{ secrets.DOCKERHUB_USERNAME }}/sent-app:${{ github.run_number }}
            ${{ secrets.DOCKERHUB_USERNAME }}/sent-app:latest

      - name: Verify Docker image push
        run: |
          echo "✅ Docker image pushed successfully"
          echo "🐳 Image tag: ${{ secrets.DOCKERHUB_USERNAME }}/sent-app:latest"

      - name: Prepare server directory
        uses: appleboy/ssh-action@v0.1.7
        with:
          host: ${{ secrets.SERVER_IP }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SERVER_SSH_KEY }}
          script: |
            mkdir -p /home/sentthoughts/Sent-Server
            echo "📁 Server directory prepared"

      - name: Copy all files to server
        uses: appleboy/scp-action@v0.1.7
        with:
          host: ${{ secrets.SERVER_IP }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SERVER_SSH_KEY }}
          source: .
          target: /home/sentthoughts/Sent-Server/

      - name: Setup SSL certificates
        uses: appleboy/ssh-action@v0.1.7
        with:
          host: ${{ secrets.SERVER_IP }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SERVER_SSH_KEY }}
          script: |
            cd /home/sentthoughts/Sent-Server
            if [ ! -d "certs" ]; then
              ln -s /home/ubuntu/certs/devcerts ./certs
            fi
            if [ ! -f "certs/fullchain.pem" ] || [ ! -f "certs/privkey.pem" ]; then
              echo "❌ SSL certificates not found!"
              exit 1
            fi

      - name: Check Docker status before deployment
        uses: appleboy/ssh-action@v0.1.7
        with:
          host: ${{ secrets.SERVER_IP }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SERVER_SSH_KEY }}
          script: |
            echo "🐳 Current Docker containers:"
            docker ps -a
            echo ""
            echo "🌐 Current Docker networks:"
            docker network ls
            echo ""
            echo "💾 Docker system info:"
            docker system df

      - name: Deploy with Docker Compose
        uses: appleboy/ssh-action@v0.1.7
        with:
          host: ${{ secrets.SERVER_IP }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SERVER_SSH_KEY }}
          script: |
            cd /home/sentthoughts/Sent-Server
            echo "📍 Current directory: $(pwd)"
            
            echo "📥 Pulling latest Docker images..."
            docker-compose pull
            echo "✅ Docker images pulled successfully"
            
            echo "🛑 Stopping existing services..."
            docker-compose down
            echo "✅ Services stopped"
            
            echo "🚀 Starting services with docker-compose..."
            docker-compose up -d
            echo "✅ Services started successfully"
            
            echo "📋 Container status:"
            docker-compose ps
            
            echo "📝 Service logs (last 20 lines):"
            docker-compose logs --tail 20

      - name: Health check
        uses: appleboy/ssh-action@v0.1.7
        with:
          host: ${{ secrets.SERVER_IP }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SERVER_SSH_KEY }}
          script: |
            cd /home/sentthoughts/Sent-Server
            echo "🏥 Starting health check..."

            # Wait for services to start
            echo "⏰ Waiting for backend (sent-server) to initialize..."

            MAX_ATTEMPTS=15
            SLEEP_SEC=8

            for i in $(seq 1 $MAX_ATTEMPTS)
            do
              BACKEND_STATUS=$(curl -A "health-probe" -s -o /dev/null -w "%{http_code}" -k https://localhost/health || echo "000")
              echo "⏳ Health check attempt $i/$MAX_ATTEMPTS: backend $BACKEND_STATUS"

              if [ "$BACKEND_STATUS" = "200" ]; then
                echo "✅ Backend health check passed on attempt $i!"
                echo "📋 Final service status:"
                docker-compose ps
                echo "📝 Backend health response:"
                curl -s -k https://localhost/health || echo "No response"

                # nginx 상태/로그는 백엔드가 정상일 때만 한 번 확인
                echo "📝 Nginx logs (last 10 lines):"
                docker-compose logs --tail 10 nginx-proxy 2>/dev/null || echo "⚠️ Unable to get nginx logs"
                echo "📝 Nginx status:"
                docker-compose ps nginx-proxy 2>/dev/null || echo "⚠️ Unable to get nginx status"
                exit 0
              fi

              # 3회마다 최근 로그 출력
              if (( $i % 3 == 0 )); then
                echo "📝 [Attempt $i] Recent backend logs:"
                docker-compose logs --tail 10 sent-server 2>/dev/null || echo "⚠️ Unable to get backend logs"
              fi

              sleep $SLEEP_SEC
            done

            echo "❌ Health check failed after $MAX_ATTEMPTS attempts!"
            echo "🔍 Final backend logs:"
            docker-compose logs --tail 30 sent-server 2>/dev/null || echo "⚠️ Unable to get backend logs"
            echo "🔍 Nginx logs:"
            docker-compose logs --tail 30 nginx-proxy 2>/dev/null || echo "⚠️ Unable to get nginx logs"
            echo "🔍 Service status:"
            docker-compose ps 2>/dev/null || echo "⚠️ Unable to get docker-compose status"
            exit 1