services:
  database:
      image: postgres:17.4-alpine3.21
      container_name: database
      ports:
        - "5432:5432"     
      environment:
        POSTGRES_DB: ${POSTGRES_DB}      
        POSTGRES_USER: ${POSTGRES_USER} 
        POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}  

#Монтируем директорию на хосте, чтобы при повторных "docker-compose up" таблицы с нашими данными сохранялись
      volumes:
        - /database:/var/lib/postgresql/data 
      cpus: '0.15'  
      mem_limit: 256M  

      healthcheck:
        test: ["CMD-SHELL", "pg_isready -U admin -WebSite"]
        interval: 5s
        timeout: 5s
        retries: 5    
  
  webserver: 
      image: nginx:1.27.4-alpine
      container_name: webserver
      ports:
        - "80:80"
        - "443:443"
      volumes: 
        - /WebApp/frontend:/usr/share/nginx/html
        - /WebApp/nginx/ssl:/etc/nginx/sites-available
        - /WebApp/nginx/nginx.conf:/etc/nginx/nginx.conf

      depends_on:
        - database 
        - backend  
      cpus: '0.15'  
      mem_limit: 256M  
  backend:
      image: python:3.9
      container_name: backend_part
      ports:
        - "5000:5000"
      volumes:
        - /WebApp/backend:/media/backend
      working_dir: /media/backend
      command: >
        sh -c "pip install -r requirements.txt && python server.py"
      cpus: '0.35'  
      mem_limit: 256M