docker-compose.yml

version: "3.8" # specify docker-compose version

# Define the services/containers to be run
services:
  express: #name of the second service
    build: # specify the directory of the Dockerfile
      context: .
      dockerfile: dockerfile
      args:
        BASE_HREF: ${BASE_HREF:-/}
    container_name: ${ID_PROJECT:-mean}_angular_express
    ports:
      - "3000:3000" #specify ports forewarding
      # Below database enviornment variable for api is helpful when you have to use database as managed service
    environment:
      - SECRET=${SECRET}
      - MONGO_DB_USERNAME=${MONGO_DB_USERNAME}
      - MONGO_DB_PASSWORD=${MONGO_DB_PASSWORD}
      - MONGO_DB_HOST=${MONGO_DB_HOST}
      - MONGO_DB_PORT=${MONGO_DB_PORT}
      - MONGO_DB_PARAMETERS=${MONGO_DB_PORT}
      - MONGO_DB_DATABASE=${MONGO_DB_DATABASE}  
    links:
      - database

  database: # name of the third service
    image: mongo:latest # specify image to build container from
    container_name: ${ID_PROJECT:-mean}_mongo
    environment:
      - MONGO_INITDB_ROOT_USERNAME=${MONGO_DB_USERNAME}
      - MONGO_INITDB_ROOT_PASSWORD=${MONGO_DB_PASSWORD}
      - MONGO_DB_USERNAME=${MONGO_DB_USERNAME}
      - MONGO_DB_PASSWORD=${MONGO_DB_PASSWORD}
      - MONGO_DB=${MONGO_DB_DATABASE}
    volumes:
      - ./mongo:/home/mongodb
      - ./mongo/init-db.d/:/docker-entrypoint-initdb.d/
      - ./mongo/db:/data/db
    ports:
      - "27017:27017" # specify port forewarding