Consul Sample

docker-compose.yml

version: '2'
services:
  consul:
    image: consul:latest
    stdin_open: true
    tty: true
    ports:
    - 8500/tcp
    command:
    - consul
    - agent
    - -server
    - -data-dir=/tmp/consuldata
    - -client=0.0.0.0
    - -retry-join=consul-seed
    - -ui
    labels:
      io.rancher.container.pull_image: always
      io.rancher.scheduler.affinity:container_label_soft_ne: io.rancher.stack_service.name=consul
  consul-seed:
    image: consul:latest
    stdin_open: true
    tty: true
    command:
    - consul
    - agent
    - -server
    - -bootstrap-expect=3
    - -data-dir=/tmp/consuldata
    labels:
      io.rancher.container.pull_image: always

rancher-compose.yml

version: '2'
services:
  consul:
    scale: 3
    start_on_create: true
  consul-seed:
    scale: 1
    start_on_create: true

This didn't work for me :(