version: "3"
services:
  # PostgreSQL
  db:
    image: postgres:9.4
    hostname: db
    environment:
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres
      - POSTGRES_DB=postgres
    ports:
      - "5432:5432"
  # Redis
  redis:
    image: redis:2.8.19
    hostname: redis
    ports:
      - "6379:6379"
  # RabbitMQ
  rabbit:
    hostname: rabbit
    image: rabbitmq:3.6.0
    environment:
      - RABBITMQ_DEFAULT_USER=admin
      - RABBITMQ_DEFAULT_PASS=mypass
    ports:
      - "5672:5672"  # We forward this port because it's useful for debugging
      - "15672:15672"  # Here, we can access RabbitMQ management plugin
  # Django
  web:
    build:
      context: .
      dockerfile: Dockerfile
    hostname: web
    command: python ./manage.py runserver 0.0.0.0:8000
    volumes:
      # Mount src to app
      - ./src:/app
    expose:
      - "8000"
    depends_on:
      - db
    restart: always
  lb:
    image: dockercloud/haproxy
    # Recommended way is using networks instead of links
    links:
     - web
    volumes:
      # Mount unix socket for back communication (needs to be updated)
      - /var/run/docker.sock:/var/run/docker.sock
    ports:
     - "80:80"
  # Celery
  worker:
    build:
      context: .
      dockerfile: Dockerfile
    command: celery worker -A imagestore.celeryconf -Q default -n default@%h
    volumes:
      - ./src:/app
    depends_on:
      - web
      - rabbit