etcd docker

docker-compose.yml

---
version: '2.3'

x-etcd: &etcd
  image: quay.io/coreos/etcd:v3.2.17
  networks:
    - etcd

x-environment: &env
  ETCD_LISTEN_PEER_URLS: "http://0.0.0.0:2380"
  ETCD_LISTEN_CLIENT_URLS: "http://0.0.0.0:2379"
  ETCD_INITIAL_CLUSTER_STATE: "new"
  ETCD_INITIAL_CLUSTER: node01=http://etcd01:2380,node02=http://etcd02:2380,node03=http://etcd03:2380
  ETCD_ADVERTISE_CLIENT_URLS: "http://etcd01:2379,http://etcd02:2379,http://etcd03:2379"
  ETCD_STRICT_RECONFIG_CHECK: "true"

services:
  etcd01:
    <<: *etcd
    environment:
      <<: *env
      ETCD_NAME: node01
      ETCD_INITIAL_ADVERTISE_PEER_URLS: "http://etcd01:2380"

  etcd02:
    <<: *etcd
    environment:
      <<: *env
      ETCD_NAME: node02
      ETCD_INITIAL_ADVERTISE_PEER_URLS: "http://etcd02:2380"

  etcd03:
    <<: *etcd
    environment:
      <<: *env
      ETCD_NAME: node03
      ETCD_INITIAL_ADVERTISE_PEER_URLS: "http://etcd03:2380"

  etcd04:
    <<: *etcd
    environment:
      <<: *env
      ETCD_NAME: node04
      ETCD_INITIAL_CLUSTER_STATE: "existing"
      ETCD_INITIAL_CLUSTER: "node04=http://etcd04:2380,node01=http://etcd01:2380,node03=http://etcd03:2380"


  ctl:
    <<: *etcd
    entrypoint:
      - sh

networks:
  etcd: {}