version: '2'

services:

  etcd:
    image: quay.io/coreos/etcd:v3.2.9
    command: /usr/local/bin/etcd --data-dir=/etcd-data --name node1 --initial-advertise-peer-urls http://etcd:2380 --listen-peer-urls http://0.0.0.0:2380 --advertise-client-urls http://etcd:2379,http://etcd:4001 --listen-client-urls http://0.0.0.0:2379,http://0.0.0.0:4001  --initial-cluster node1=http://etcd:2380 --debug
    expose:
      - 2380
      - 2379
      - 4001
      - 7001

  whoami1:
    image: containous/whoami
    depends_on:
      - etcd

  whoami2:
    image: containous/whoami
    depends_on:
      - whoami1

  whoami3:
    image: containous/whoami
    depends_on:
      - whoami2

  whoami4:
    image: containous/whoami
    depends_on:
      - whoami3