【LVS客戶端節點】開發LVS客戶端設置VIP以及抑制ARP的管理腳本

腳本內容:

#!/bin/bash
##############################################################
# File Name: lvs_client.sh
# Version: V1.0
# Author: da ya
# Organization: [email protected]
# Created Time : 2018
# Description:
##############################################################

. /etc/init.d/functions
Vip=`ip a s lo|grep 10.0.0.13|wc -l`

function Start(){
  if [ $Vip -eq 1 ];then
    action 'Vip is alreadly exists' /bin/true
  else
    ip addr add 10.0.0.13/32 dev lo
    echo -e 'net.ipv4.conf.all.arp_ignore = 1\nnet.ipv4.conf.all.arp_announce = 2\nnet.ipv4.conf.lo.arp_ignore = 1\nnet.ipv4.conf.lo.arp_announce = 2' >/etc/sysctl.conf
    sysctl -p &>/dev/null
    action 'Vip is started' /bin/true
  fi
}

function Stop(){
  ip addr del 10.0.0.13/32 dev lo &>/dev/null
  action 'Vip is delete' /bin/true
}

case $1 in
start)
  Start
;;
stop)
  Stop
;;
restart)
  Stop
  sleep 1
  Start
;;
*)
  echo "Please Input $0 { start|stop|restart }"
;;
esac

進行測試:

案例二:

【LVS主節點】模擬keepalived健康檢查功能管理LVS節點，

當節點掛掉（檢測2次，間隔2秒）從服務器池中剔除，好了（檢測2次，間隔2秒）加進來

提示：利用ipvsadm命令實現添加和減少LVS節點。

腳本內容:

Shell之企業實際工作案例2