nginx和keepalive共存亡

加入nginx宕了，keepalive也跟着自杀

#!/bin/bash
while :
do
nginxpid=`ps -C nginx --no-header |wc -l`
if [ $nginxpid -eq 0 ];then
   /etc/init.d/nginx restart
      sleep 5
        nginxpid=`ps -C nginx --no-header |wc -l`
          if [ $nginxpid -eq 0 ];then
              /etc/init.d/keepalived stop
          fi
fi
sleep 5
done