#!/bin/bash

#2020年03月13日22:42:50

#auto change service VIP

#by author lee

########################

ETH_NAME="ens33:1"

NGX_VIP="192.168.1.188"

NGX_MASK="255.255.255.0"

ETH_DIR="/etc/sysconfig/network-scripts"

NGX_NUM=`ps -ef|grep nginx|grep -v grep|grep -v check|wc -l`

start(){

while sleep 4

do

if [ $NGX_NUM -eq 0 ];then

      ifdown $ETH_NAME

      exit 0  

else

      ping -c 2 $NGX_VIP >/dev/null 2>&1

      if [ $? -ne 0 ];then

cat>$ETH_DIR/ifcfg-$ETH_NAME<<EOF

TYPE="Ethernet"

BOOTPROTO="static"

DEVICE="$ETH_NAME"

IPADDR=$NGX_VIP

NETMASK=$NGX_MASK

ONBOOT="yes"

EOF

      ifup $ETH_NAME

      fi

fi

date

done

}

stop(){

      ifdown $ETH_NAME

      rm -rf $ETH_DIR/ifcfg-$ETH_NAME

}

case $1 in

      start)

      start

      ;;

      stop)

      stop

      ;;

      *)

      echo -e "\033[32m------------------\033[0m"

      echo -e "\033[32mUsage: /bin/sh $0 {start|stop|help}\033[0m"

         exit 1

esac