docker zookeeper 集群搭建

#创建集群目录
mkdir /opt/cluster/zk
cd /opt/cluster/zk

#清理脏数据
docker stop zk-2191
docker stop zk-2192
docker stop zk-2193
docker rm zk-2191
docker rm zk-2192
docker rm zk-2193


#创建配置文件模板【vim zoo-cluster.tmpl】
cat >zoo-cluster.tmpl <<HERE
clientPort=\${PORT}
dataDir=/data
dataLogDir=/datalog
tickTime=2000
initLimit=5
syncLimit=2
maxClientCnxns=60
server.1=zk2191:2881:3881
server.2=zk2192:2882:3882
server.3=zk2193:2883:3883
HERE


#生成conf和data目标，并生成配置信息
for port in `seq 2191 2193`; do \
  mkdir -p ./${port}/conf \
  && PORT=${port} envsubst < ./zoo-cluster.tmpl > ./${port}/conf/zoo.cfg \
  && mkdir -p ./${port}/data \
  && echo $[$port-2190] >./${port}/data/myid \
  && mkdir -p ./${port}/datalog; \
done


#创建3个zookeeper容器
for port in `seq 2191 2193`; do \
  docker run -d -ti -p ${port}:${port} -p $[$port+690]:$[$port+690] -p $[$port+1690]:$[$port+1690] \
  -v /opt/cluster/zk/${port}/conf:/conf \
  -v /opt/cluster/zk/${port}/data:/data \
  -v /opt/cluster/zk/${port}/datalog:/datalog \
  --restart always --name zk-${port} --net bridge \
  -m 100M --memory-swap=100M -h zk${port} \
  --sysctl net.core.somaxconn=1024 zookeeper zkServer.sh start; \
done


#其他

 docker start zk-2191
 docker start zk-2192
 docker start zk-2193


for port in `seq 2191 2193`; do \
  echo $[$port+690]  && echo $[$port+1690]; \
done


#创建配置文件
zoo.cfg

/zookeeper-3.4.12/bin/zkServer.sh {start|start-foreground|stop|restart|status|upgrade|print-cmd}