docker-compose.yml

version: "3"

services:
  nginx:
    build: ./.nginx
    links:
      - node1:node1
      - node2:node2
      - node3:node3
    depends_on:
      - node1
      - node2
      - node3
    ports:
      - "8080:80"
    networks:
      - app-network

  node1:
    image: scalable-node_src:1.0
    ports:
      - "3000:3000"
    env_file: ./src/.env
    environment:
      - INSTANCE=node1
    networks:
      - app-network

  node2:
    image: scalable-node_src:1.0
    ports:
      - "3001:3000"
    env_file: ./src/.env
    environment:
      - INSTANCE=node2
    networks:
      - app-network

  node3:
    image: scalable-node_src:1.0
    ports:
      - "3002:3000"
    env_file: ./src/.env
    environment:
      - INSTANCE=node3
    networks:
      - app-network

  database:
    image: "mongo"
    env_file: ./src/.env
    volumes:
      - ./.mongo/init-mongo.js:/docker-entrypoint-initdb.d/init-mongo.js:ro
      - ./mongo-volume:/data/db
    ports:
      - "27017-27019:27017-27019"
    networks:
      - app-network

networks:
  app-network:
    driver: bridge