Docker 方式搭建 zookeeper + kafka 集群

一、环境介绍

　主机：三台，Centos7.6+docker19.03.4 (192.168.145.7，192.168.145.67，192.168.145.77)

　镜像：zookeeper:latest（docker pull zookeeper）version 3.6.1，wurstmeister/kafka:latest (docker pull wurstmeister/kafka) version 2.13_2.6.0，kafka-manager（docker pull sheepkiller/kafka-manager）version 1.3.1.8

二、Docker安装

　Docker安装：https://www.cnblogs.com/hovin/p/13630569.html

三、zookeeper集群搭建

(1) 下载镜像，三台都一样

[root@localhost ~]# docker pull zookeeper

(2) 创建本地目录，三台都一样

[root@localhost ~]# mkdir -pv /kafka_cluster/zookeeper/{conf,data,datalog}

(3) 准备配置文件，zoo.cfg 和 log4j.properties，三台都一样

[root@localhost ~]# vim /kafka_cluster/zookeeper/conf/zoo.cfg
# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between 
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
# zookeeper镜像中设定会将zookeeper的data与dataLog分别映射到/data, /datalog
# 本质上，这个配置文件是为zookeeper的容器所用，容器中路径的配置与容器所在的宿主机上的路径是有区别的，要区分清楚。
dataDir=/data
dataLogDir=/datalog
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1t
server.1=192.168.145.7:2888:3888
server.2=192.168.145.67:2888:3888
server.3=192.168.145.77:2888:3888

zoo.cfg