version: '3'
services:
  backend:
    image: dummy:tag
    profiles: ['hello', 'world']
    ports:
      - "80:80"
  frontend:
    image: dummy:tag
    profiles: [ 'hello' ]
    ports:
      - "80:80"
  database:
    image: dummy:tag
    profiles: [ 'world' ]
    ports:
      - "80:80"