# The minimal zookeeper service
# github.com/yeasy/docker-compose-files

# * zk: zk node for zookeeper, 0, 1, 2
# * zookeeper: zookeeper service, will default to connect to zookeeper
# * cli: client to test zookeeper service

version: '3'

services:
  zookeeper1:
    image: yeasy/zookeeper:3.5.6
    container_name: zookeeper1
    hostname: zookeeper1
    ports:
      - "2182:2181"  # zk connection port
    environment:
      - ZK_ID=1 # when bootup, will read this and update the /tmp/zookeeper/myid file
      - ZK_HOST1=zk_zookeeper1 # specify the host addrs of each zk
      - ZK_HOST2=zk_zookeeper2
      - ZK_HOST3=zk_zookeeper3
    healthcheck:
      disable: true
    command: bash -c 'bash /tmp/start_zk.sh'

  zookeeper2:
    image: yeasy/zookeeper:3.5.6
    container_name: zookeeper2
    hostname: zookeeper2
    ports:
      - "2183:2181"  # zk connection port
    environment:
      - ZK_ID=2 # when bootup, will read this and update the /tmp/zookeeper/myid file
      - ZK_HOST1=zk_zookeeper1 # specify the host addrs of each zk
      - ZK_HOST2=zk_zookeeper2
      - ZK_HOST3=zk_zookeeper3
    healthcheck:
      disable: true
    command: bash -c 'bash /tmp/start_zk.sh'

  zookeeper3:
    image: yeasy/zookeeper:3.5.6
    container_name: zookeeper3
    hostname: zookeeper3
    ports:
      - "2181:2181"  # zk connection port
    environment:
      - ZK_ID=3 # when bootup, will read this and update the /tmp/zookeeper/myid file
      - ZK_HOST1=zk_zookeeper1 # specify the host addrs of each zk
      - ZK_HOST2=zk_zookeeper2
      - ZK_HOST3=zk_zookeeper3
    healthcheck:
      disable: true
    command: bash -c 'bash /tmp/start_zk.sh'

  cli:  # used for testing zookeeper cmds, see /tmp/*.sh
    image: yeasy/zookeeper:3.5.6
    container_name: cli
    hostname: cli
    environment:
      - ZK_HOST=zookeeper1 # zk host to connect to
      - ZK_HOST1=zk_zookeeper1 # specify the host addrs of each zk
      - ZK_HOST2=zk_zookeeper2
      - ZK_HOST3=zk_zookeeper3
    healthcheck:
      disable: true
    # bash /opt/zookeeper/bin/zkCli.sh -server ${ZK_HOST}:2181
    command: bash -c 'while true; do sleep 20200116; done'