shell脚本中一键部署zookeeper集群服务的方法(shell脚本部署zookeeper集群)

一键部署zookeeper集群服务

1. 编写脚本情况分析

Zookeeper是一个开源的分布式的，为分布式框架提供协调服务的Apache项目。
Zookeeper适合安装奇数台服务器。
脚本完成后将会产生：一个领导者(Leader) ，多个跟随者(Follower) 组成的集群。
此脚本默认的安装包为：apache-zookeeper-3.5.7-bin.tar.gz，如果使用其他版本，自行修改部分代码。

2. 脚本代码部分

#!/bin/bash
#一键部署zookeeper集群服务器脚本
# 判断/opt目录下是否有指定安装包
if [ -e /opt/apache-zookeeper-3.5.7-bin.tar.gz ];then
 continue
else
 echo -e '\033[35m /opt目录中没有安装包[apache-zookeeper-3.5.7-bin.tar.gz]\033[0m'
 exit
fi
# 配置yum本地源
yumm (){
  if ls /etc/yum.repos.d/ | grep repo.bak &> /dev/null
  then
mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/repo.bak/
  else
mkdir /etc/yum.repos.d/repo.bak/
mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/repo.bak/
  fi
  echo -e "[local]\nname=local\nbaseurl=file:///mnt\nenable=1\ngpgcheck=0" > /etc/yum.repos.d/local.repo
  if df -h | grep /dev/sr0 &> /dev/null
  then
umount /dev/sr0
mount /dev/cdrom /mnt &> /dev/null
  else
mount /dev/cdrom /mnt &> /dev/null
if [ $? -ne 0 ]
then
 echo "光盘不存在，检查是否加载镜像，状态是否已连接！"
 exit
fi
  fi
}
yumm
if yum clean all &> /dev/null
then
 if yum makecache &> /dev/null
 then
  echo "yum本地源配置完成！可以正常安装程序！"
 else
  echo "yum缓存建立失败！"
 fi
else
 echo "yum缓存清除失败......"  
fi
read -p "当前服务器的myid为：" num
read -p "输入要设置的zookeeper服务器1的ip：" ip1
read -p "输入要设置的zookeeper服务器2的ip：" ip2
read -p "输入要设置的zookeeper服务器3的ip：" ip3
yum install -y java-1.8.0-openjdk java-1.8.0-openjdk-devel
cd /opt/
tar zxvf apache-zookeeper-3.5.7-bin.tar.gz
mv apache-zookeeper-3.5.7-bin /usr/local/zookeeper-3.5.7 &> /dev/null
cd /usr/local/zookeeper-3.5.7/conf/ 
/usr/bin/cp zoo_sample.cfg zoo.cfg
sed -i '12 s/tmp\/zookeeper/usr\/local\/zookeeper-3.5.7\/data/' /usr/local/zookeeper-3.5.7/conf/zoo.cfg
sed -i '13c dataLogDir=\/usr\/local\/zookeeper-3.5.7\/logs' /usr/local/zookeeper-3.5.7/conf/zoo.cfg
sed -i '15c server.1='$ip1':3188:3288' /usr/local/zookeeper-3.5.7/conf/zoo.cfg
sed -i '16c server.2='$ip2':3188:3288' /usr/local/zookeeper-3.5.7/conf/zoo.cfg
sed -i '17c server.3='$ip3':3188:3288' /usr/local/zookeeper-3.5.7/conf/zoo.cfg
mkdir /usr/local/zookeeper-3.5.7/data &> /dev/null
mkdir /usr/local/zookeeper-3.5.7/logs &> /dev/null
echo $num > /usr/local/zookeeper-3.5.7/data/myid
echo '#!/bin/bash
#chkconfig:2345 20 90
#description: Zookeeper Service Control Script
ZK_HOME='/usr/local/zookeeper-3.5.7'
case $1 in
start)
echo "-----zookeeper启动-----"
$ZK_HOME/bin/zkServer.sh start
;;
stop)
echo "----zookeeper停止-------"
$ZK_HOME/bin/ zkServer.sh stop
;;
restart)
echo "----zookeeper重启-------"
$ZK_HOME/bin/zkServer.sh restart
;;
status)
echo  "-----zookeeper状态------"
$ZK_HOME/bin/zkServer.sh status
;;
*)
echo "Usage: $0 {start|stop|restart|status}"
esac' > /etc/init.d/zookeeper
chmod +x /etc/init.d/zookeeper
chkconfig --add zookeeper
echo "所有服务执行完脚本后执行 service zookeeper start 开启服务"
echo "所有服务执行完脚本后执行 service zookeeper status 查看状态"