docker-compose.yml for APP

app:
  build: .
  volumes:
    - /qgen/public
  environment:
    - RAILS_ENV=production
  env_file:
    - envfile.${ENV}

proxy:
  build: ./proxy
  links:
    - app
  expose:
    - "80"
  volumes_from:
    - app

docker-compose.yml for LB

lb:
  image: rancher/load-balancer-service
  ports:
    - 80:80
  external_links:
    - ranchertest/proxy
  labels:
    io.rancher.loadbalancer.target.ranchertest/proxy: ranchertest.daetaapptest01.eur.ad.sag:80=80

rancher-compose.yml for LB

lb:
  scale: 1