docker-compose.yml

version: '3.0'
services:
  nginx_rp:
    build: ./nginx_rp/
    container_name: nginx_rp
    depends_on:
      - server1
      - server2
      - server3
    networks:
      - docker_network
    links:
      - server1
      - server2
      - server3
    ports:
      - 80:80

  nginx_lb:
    build: ./nginx_lb/
    container_name: nginx_lb
    depends_on:
      - server1
      - server2
    networks:
      - docker_network
    links:
      - server1
      - server2
    ports:
      - 80:80

  server1:
    container_name: server1
    build: ./server1/
    command: python app.py 
    ports:
      - "81:81"
    networks:
      - docker_network

  server2:
    container_name: server2
    build: ./server2/
    command: python app.py 
    ports:
      - "82:82"
    networks:
      - docker_network

  server3:
    container_name: server3
    build: ./server3/
    command: python app.py 
    ports:
      - "83:83"
    networks:
      - docker_network

networks:
  docker_network: