version: "2"

services:
  node1:
    build: ./node.js
    links:
         - mysql
    ports:
         - "8080"
    volumes:
         - ./node.js:/src
    networks:
        uln:
         ipv4_address: 10.7.0.3

  node2:
    build: ./node.js
    links:
         - mysql
    volumes:
         - ./node.js:/src
    ports:
         - "8080"
    networks:
        uln:
         ipv4_address: 10.7.0.4

  node3:
    build: ./node.js
    links:
         - mysql
    ports:
         - "8080"
    volumes:
         - ./node.js:/src
    networks:
        uln:
         ipv4_address: 10.7.0.5

  mysql:
    image: mysql:latest
    command: --default-authentication-plugin=mysql_native_password
    ports:
        - "3306:3306"
    expose:
        - 33060
    volumes:
        - ./mysql:/var/lib/mysql
    environment:
        MYSQL_ROOT_PASSWORD: secret
        MYSQL_DATABASE: webprog
        MYSQL_USER: webprog
        MYSQL_PASSWORD: webprog
    networks:
        uln:
         ipv4_address: 10.7.0.6

  nginx:
    build: ./nginx/
    ports:
            - "80:80"
    volumes:
            - ./www:/var/www/html
    depends_on:
            - node1
            - node2
            - node3
    links:
            - node1
            - node2
            - node3
    networks:
        uln:
         ipv4_address: 10.7.0.2

networks:
    uln:
     ipam:
        config:
         - subnet: 10.7.0.0/16
           ip_range: 10.7.0.0/24