stack.yml

version: '3'

networks:
  frontend_net:
    driver: overlay
  backend_net:
    driver: overlay

services:

  database:
    image: mongo:3.4
    networks:
      backend_net:
        aliases:
          - database
    ports:
      - "27017:27017"

  queue:
    image: redis:3.2
    networks:
      backend_net:
        aliases:
          - queue
    ports:
      - "6379:6379"
    healthcheck:
      test: '[ $$(redis-cli ping) = "PONG" ] || exit 1 ]'
      timeout: 2s
      interval: 5s
      retries: 5

  worker:
    image: worker
    networks:
      - backend_net

  vote:
    image: vote
    networks:
      frontend_net:
        aliases:
          - vote
      backend_net:
    ports:
      - "3000:3000"
    healthcheck:
      test: [ "CMD", "curl", "-f", "http://localhost" ]
      timeout: 1s
      interval: 5s
      retries: 10