#!/bin/bash
#redis控制脚本
redis_port=$2
redis_name="redis_${redis_port}"
redis_home=/data/redis_cluster/${redis_name}
redis_conf=${redis_home}/conf/${redis_name}.conf
redis_host=`ifconfig ens33 | awk 'NR==2{print $2}'`
redis_pass=$3
red="\e[031m"
green="\e[032m"
yellow="\e[033m"
black="\e[0m"
Usage(){
  echo "usage: sh $0 {start|stop|restart|login|ps|logs|-h} PORT"
}
Start(){
        redis_cz=`netstat -lnpt | grep redis | grep "${redis_port}" | wc -l`
        if [ $redis_cz -eq 0 ];then
                redis-server ${redis_conf}
                if [ -z $state ];then
                        echo -e "${green}redis ${redis_port}实例启动成功!${black}"
                else
                        echo -e "${green}redis ${redis_port}实例重启成功!${black}"
                fi
                netstat -lnpt | grep ${redis_port}
        else
                if [ -z $state ];then
                        echo -e "${yellow}redis "${redis_port}"实例已经是启动状态!${black}"
                        netstat -lnpt | grep ${redis_port}
                fi
        fi
}
Stop(){
        redis_cz=`netstat -lnpt | grep redis | grep "${redis_port}" | wc -l`
        if [ $redis_cz -gt 0 ];then
                redis-cli -h $redis_host -p $redis_port shutdown
                if [ -z $state ];then
                        echo -e "${green}redis ${redis_port}实例关闭成功!"
                fi
        else
                if [ -z $state ];then
                        echo -e "${red}redis "${redis_port}"实例没有启动!${black}"
                fi
        fi
}
Restart(){
  state=restart
  Stop
  Start
}
Login(){
        redis_cz=`netstat -lnpt | grep redis | grep "${redis_port}" | wc -l`
        if [ $redis_cz -gt 0 ];then
    redis-cli -h $redis_host -p $redis_port 
  else
    echo -e "${red}redis ${redis_port}实例没有启动!${black}"
    echo -en  "${yellow}是否要启动reis? [y/n]${black}"
    read action
    case $action in 
    y|Y)
      Start
      Login
      ;;
    n|N)
      exit 1
      ;;
    esac
  fi
}
Ps(){
  ps aux | grep redis
}
Logs(){
  tail -f ${redis_home}/logs/${redis_name}.log
}
Help(){
  Usage
  echo "+-------------------------------------------------------------------------------+"  
  echo "| start   启动redis             |"
  echo "| stop    关闭redis             |"
  echo "| restart 重启redis             |"
  echo "| login   登陆redis             |"
  echo "| ps    查看redis的进程信息,不需要加端口号        |"
  echo "| logs    查看redis日志持续输出           |"
  echo "| 除ps命令外,所有命令后面都需要加端口号            |"  
  echo "+-------------------------------------------------------------------------------+"  
}
if [ $# -ne 2 ];then
  if [ "$1" != "ps" ] &&  [ "$1" != "-h" ];then
    Usage
    exit 1
  fi
fi
case $1 in 
start)
  Start
  ;;
stop)
  Stop
  ;;
restart)
  Restart
  ;;
login)
  Login
  ;;
ps)
  Ps
  ;;
logs)
  Logs
  ;;
-h)
  Help
  ;;
*)
  Help
  ;;
esac

[root@redis-2 ~]# redis-cli -h 192.168.81.210 -p 6380
192.168.81.210:6380> CLUSTER MEET 192.168.81.210 6381
OK
192.168.81.210:6380> CLUSTER MEET 192.168.81.220 6380
OK
192.168.81.210:6380> CLUSTER MEET 192.168.81.220 6381
OK
192.168.81.210:6380> CLUSTER MEET 192.168.81.230 6380
OK
192.168.81.210:6380> CLUSTER MEET 192.168.81.230 6381
OK
192.168.81.210:6380> CLUSTER NODES
34e698b929948c3c61c4ba40c129161b736ee5cc 192.168.81.230:6381 master - 0 1612334628247 5 connected
4827ff5cbc7122a4459b1d91bd15a89e0661a91b 192.168.81.220:6381 master - 0 1612334624212 2 connected
8d918c708db4a9fbe6b08d9f707d501eb328885e 192.168.81.230:6380 master - 0 1612334625222 0 connected
4e99bc582fede8e359fb25d163e7267f616409ff 192.168.81.210:6381 master - 0 1612334626229 1 connected
5f19db5c04ccaea18270819f5af37cacbf41a800 192.168.81.210:6380 myself,master - 0 0 3 connected
454fe9862588f97f969c181b3f8c5e24f6135265 192.168.81.220:6380 master - 0 1612334627241 4 connected