docker-compose.yml

    # 1. Update config values (localhost --> mongo and localhost --> redis) in config/config.development.json if necessary.
    # 2. Set APP_ENV environment variable by running the following command in your commnand window (see the notes below if on Windows). 

    #    export APP_ENV=development or export APP_ENV=production
    #    export DOCKER_ACCT=codewithdan

    #    NOTE: If you're on Windows use one of the following commands to create the environment variables. 
    #    Use 'codewithdan' for the account if you want to run in Kubernetes (see the readme). Otherwise, you can substitute your own 
    #    Docker account for the value if you'd like.

    #    For the standard Windows DOS command shell use `set` instead of `export` for environment variables.
    #    For Windows Powershell use `$env:APP_ENV = "value"`.

    #    $env:APP_ENV="development" or $env:APP_ENV="production"
    #    $env:DOCKER_ACCT="codewithdan"
    
    # 3. Remove "node" service `volume` (below) only if doing a production build
    #  - For development, make sure you ran `npm install` first, so that node_modules will be available on the volume for the node app to run
    # 4. Run docker-compose build
    # 5. Run docker-compose up
    # 6. Live long and prosper
    
version: "3.7"
 
services:
    nginx:
      container_name: nginx
      image: ${DOCKER_ACCT}/nginx
      build: 
        context: .
        dockerfile: .docker/nginx.${APP_ENV}.dockerfile
      # links are deprecated (networks are used instead for communication and 
      # depends_on for upstream node name in nginx config)
      # links:
      #   - node1:node1
      #   - node2:node2
      #   - node3:node3
      depends_on: 
        - node
      restart: on-failure
      ports:
        - "80:80"
        - "443:443"
      networks:
        - codewithdan-network
      
        
    node:
      image: ${DOCKER_ACCT}/node-codewithdan
      build: 
        context: .
        dockerfile: .docker/node-codewithdan.${APP_ENV}.dockerfile
      ports:
      - "8080"
      volumes:
        - .:/var/www/codewithdan
      working_dir: /var/www/codewithdan
      env_file:
        - ./.docker/env/app.${APP_ENV}.env
      depends_on:
        - mongo
        - redis
      # scale: 3
      deploy: 
        replicas: 3
      networks:
        - codewithdan-network
        
            
    mongo:
      container_name: mongo
      image: ${DOCKER_ACCT}/mongo
      build:
        context: .
        dockerfile: .docker/mongo.dockerfile
      ports:
      - "27017:27017"
      env_file:
        - ./.docker/env/mongo.${APP_ENV}.env
      networks:
        - codewithdan-network
        
    redis:
      container_name: redis
      image: ${DOCKER_ACCT}/redis
      build: 
        context: .
        dockerfile: .docker/redis.${APP_ENV}.dockerfile
      ports:
        - "6379:6379"
      networks:
        - codewithdan-network

    # cadvisor:
    #   container_name: cadvisor
    #   image: google/cadvisor
    #   volumes:
    #     - /:/rootfs:ro
    #     - /var/run:/var/run:rw
    #     - /sys:/sys:ro
    #     - /var/lib/docker/:/var/lib/docker:ro
    #   ports:
    #     - "8080:8080"
    #   networks:
    #     - codewithdan-network
        
networks:
    codewithdan-network:
      driver: bridge