shell脚本-LVS节点健康检查

#!/bin/bash
VIP=202.106.195.1
PORT=80
RIP=(192.168.100.10 192.168.100.20)

while true
do
  for ((i=0;i<`echo {#RIP[*]}`;i++))
  do
    code=`curl -I -m 10 -o /dev/null -s -w %{http_code} http://{RIP[i]}`
    if [code -ne 200 -a (ipvsadm -Ln|grep{RIP[i]}|wc -l) -eq 1 ]
    then ipvsadm -d -tVIP:PORT -r{RIP[i]}:PORT
    elif [ code -eq 200 -a(ipvsadm -Ln|grep {RIP[i]}|wc -l) -lt 1 ]
    then ipvsadm -a -t VIP:PORT -r {RIP[i]}:PORT
    fi
  done
sleep 5
done


keepalived 监控服务

#!/bin/bash
while true
do
  if [(pidof httpd|wc -l) -eq 1 -a (pidof keepalived|wc -l) -eq 0 ]
  then systemctl start keepalived
  fi

  pidof httpd &>/dev/null
  if [? -ne 0 ]
  then systemctl start httpd &>/dev/null
  fi
  sleep 3

  pidof httpd &>/dev/null
  if [ $? -ne 0 ]
  then systemctl stop keepalived
  fi
  sleep 3
done

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