docker下 zookeeper集群

首先创建所需的文件夹

mkdir -p /data/{data1,data2,data3}
mkdir -p /data/{datalog1,datalog2,datalog3}

docker-compose 直接up

version: ''
services:
    zoo1:
        image: zookeeper
        restart: always
        container_name: zoo1
        ports:
            - "2181:2181"
        volumes:
            - /data/data1:/data
            - /data/datalog1:/datalog
         #   - /conf:/conf             #此镜像的zoo.cfg配置文件可放置在/conf目录
        environment:
            ZOO_MY_ID:
            ZOO_SERVERS: server.=zoo1:: server.=zoo2:: server.=zoo3::
    zoo2:
        image: zookeeper
        restart: always
        container_name: zoo2
        ports:
            - "2182:2181"
        volumes:
            - /data/data2:/data
            - /data/datalog2:/datalog

        environment:
            ZOO_MY_ID:
            ZOO_SERVERS: server.=zoo1:: server.=zoo2:: server.=zoo3::
    zoo3:
        image: zookeeper
        restart: always
        container_name: zoo3
        ports:
            - "2183:2181"
        volumes:
            - /data/data3:/data
            - /data/datalog3:/datalog

        environment:
            ZOO_MY_ID:
            ZOO_SERVERS: server.=zoo1:: server.=zoo2:: server.=zoo3::

测试

[root@master ~]# docker exec -it zoo2 zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /conf/zoo.cfg
Mode: follower
[root@master ~]# docker exec -it zoo3 zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /conf/zoo.cfg
Mode: leader
[root@master ~]# docker exec -it zoo1 zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /conf/zoo.cfg
Mode: follower

查看一下env

bash-4.4# env
ZOO_CONF_DIR=/conf
ZOO_SERVERS=server.=zoo1:: server.=zoo2:: server.=zoo3::
LANG=C.UTF-
HOSTNAME=9b37651d8114
ZOOCFGDIR=/conf　　　　　　　　　　　　　　#如果有自定义的zoo.cfg文件，可以在此处进行volume挂载
ZOO_AUTOPURGE_PURGEINTERVAL=
ZOO_MAX_CLIENT_CNXNS=
JAVA_HOME=/usr/lib/jvm/java-1.8-openjdk/jre
ZOO_AUTOPURGE_SNAPRETAINCOUNT=
JAVA_VERSION=8u171
PWD=/zookeeper-3.4./conf
HOME=/root
ZOO_SYNC_LIMIT=
ZOO_DATA_DIR=/data
ZOO_DATA_LOG_DIR=/datalog
TERM=xterm
ZOO_PORT=
SHLVL=
ZOO_TICK_TIME=
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/lib/jvm/java-1.8-openjdk/jre/bin:/usr/lib/jvm/java-1.8-openjdk/bin:/zookeeper-3.4./bin
JAVA_ALPINE_VERSION=8.171.-r0
ZOO_USER=zookeeper
ZOO_INIT_LIMIT=
ZOO_MY_ID=
_=/usr/bin/env
OLDPWD=/zookeeper-3.4.