java_survey_app-cloud_computing_2025/docker-compose.yml at main · sero583/java_survey_app-cloud_computing_2025 · GitHub

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services:
  loadbalancer:
    image: haproxy:2.7
    container_name: loadbalancer
    ports:
      - "80:80" # Bind to all interfaces
    volumes:
      - ./haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg:ro
    networks:
      - app-network
    depends_on:
      webserver1:
        condition: service_healthy
      webserver2:
        condition: service_healthy
    deploy:
      resources:
        limits:
          cpus: '0.5'
          memory: 256M
        reservations:
          cpus: '0.25'
          memory: 128M
    healthcheck:
      test: ["CMD", "haproxy", "-c", "-f", "/usr/local/etc/haproxy/haproxy.cfg"]
      interval: 30s
      timeout: 3s
      retries: 3
      start_period: 10s

  webserver1:
    build:
      context: .
      dockerfile: ./docker/webserver/Dockerfile
    container_name: webserver1
    environment:
      - SPRING_DATASOURCE_URL=${DB_URL:-jdbc:postgresql://database:5432/surveydb}
      - SPRING_DATASOURCE_USERNAME=${DB_USERNAME:-postgres}
      - SPRING_DATASOURCE_PASSWORD=${DB_PASSWORD:-test123}
      - APP_BASE_URL=${APP_BASE_URL:-http://localhost}
    networks:
      - app-network
      - db-network
    ports:
      - "8080:8080" # Expose webserver1 for local access
    depends_on:
      database:
        condition: service_healthy
    deploy:
      resources:
        limits:
          cpus: '1.0'
          memory: 1G
        reservations:
          cpus: '0.5'
          memory: 512M
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:8080/actuator/health"]
      interval: 30s
      timeout: 3s
      retries: 3
      start_period: 40s

  webserver2:
    build:
      context: .
      dockerfile: ./docker/webserver/Dockerfile
    container_name: webserver2
    environment:
      - SPRING_DATASOURCE_URL=${DB2_URL:-jdbc:postgresql://database:5432/surveydb}
      - SPRING_DATASOURCE_USERNAME=${DB2_USERNAME:-postgres}
      - SPRING_DATASOURCE_PASSWORD=${DB2_PASSWORD:-test123}
      - APP_BASE_URL=${APP_BASE_URL:-http://localhost}
    networks:
      - app-network
      - db-network
    ports:
      - "8081:8080" # Expose webserver2 on a different host port
    depends_on:
      database:
        condition: service_healthy
    deploy:
      resources:
        limits:
          cpus: '1.0'
          memory: 1G
        reservations:
          cpus: '0.5'
          memory: 512M
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:8080/actuator/health"]
      interval: 30s
      timeout: 3s
      retries: 3
      start_period: 40s

  database:
    build:
      context: .
      dockerfile: ./docker/db/Dockerfile
    container_name: database
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-postgres}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-test123}
      POSTGRES_DB: ${POSTGRES_DB:-surveydb}
    ports:
      - "5432:5432"
    networks:
      - db-network
    deploy:
      resources:
        limits:
          cpus: '1.0'
          memory: 512M
        reservations:
          cpus: '0.5'
          memory: 256M
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER:-postgres}"]
      interval: 10s
      timeout: 3s
      retries: 5
      start_period: 30s

networks:
  app-network:
  db-network:
    internal: true