lvs启动脚本

lvs启动脚本

LVS_DR 脚本

#!/bin/sh
#
# lvs      Start lvs
#
# chkconfig: 2345 08 92
# description:  Starts, stops and saves lvs
#

SNS_VIP=192.168.16.200
SNS_RIP1=192.168.10.253
SNS_RIP2=192.168.10.254


. /etc/rc.d/init.d/functions

#logger $0 called with $1
retval=0
start()
{
      #set squid vip
      /sbin/ipvsadm --set 30 5 60
      /sbin/ifconfig eth0:0 $SNS_VIP broadcast $SNS_VIP netmask 255.255.255.255 broadcast $SNS_VIP up
      /sbin/route add -host $SNS_VIP dev eth0:0
      /sbin/ipvsadm -A -t $SNS_VIP:80 -s wlc -p 120
      /sbin/ipvsadm -a -t $SNS_VIP:80 -r $SNS_RIP1:80 -g -w 1
      /sbin/ipvsadm -a -t $SNS_VIP:80 -r $SNS_RIP2:80 -g -w 1
      touch /var/lock/subsys/ipvsadm > /dev/null 2 >&1
      echo "ipvsadm started"
 }

stop()
{
      /sbin/ipvsadm -C
      /sbin/ipvsadm -Z
      ifconfig eth0:0 down
      route del $SNS_VIP
      rm -rf /var/lock/subsys/ipvsadm > /dev/null 2 >&1
      echo "ipvsadm stoped"
}

status()
{
      if [ ! -e /var/lock/subsys/ipvsadm ];then
             echo "ipvsadm stoped"
             exit 1
      else
             echo "ipvsadm OK"
      fi
}

case "$1" in
       start)
            start
            ;;
       stop)
           stop
            ;;
 
      
             status)  
                 status  
                  ;;        restart) 
                 stop   
               start  
                  ;;

          *)        echo $"Usage: $0 {start|stop|status}"        retval=1  esac  exit $retval 

 用service命令启动该脚本

 
      
      [root@localhost]# vim /etc/rc.d/init.d/lvs 输入上面的脚本内容（具体参数需要自己更改），保存
 
      
      [root@localhost]# chmod 755 /etc/rc.d/init.d/lvs
 
      
      [root@localhost]# service lvs start
ipvsadm started
[root@localhost]# service lvs status
ipvsadm OK
[root@localhost]# service lvs restart
ipvsadm stoped
ipvsadm started
[root@localhost]# service lvs stop
ipvsadm stoped

使用chkconfig把lvs脚本添加到开机自启动项

[root@localhost ]chkconfig --add lvs
[root@localhost ]chkconfig --level 2345 lvs on
[root@localhost ]chkconfig --list lvs
lvs   0:关闭  1:关闭  2:启用  3:启用  4:启用  5:启用  6:关闭

在这个步骤的时候，遇到过一些麻烦，现问题已经解决，需要注意的是脚本中以下代码不能有错误，不然可能会遇到添加不上的情况，

• #!/bin/sh 
• # 
• # lvs      Start lvs 
• # 
• # chkconfig: 2345 08 92 
• # description:  Starts, stops and saves lvs 
• #
  

chkconfig的相关知识，附链接，有兴趣的可参考

http://shhyang.blog.51cto.com/714134/207055

http://wenku.baidu.com/view/9bbc7b6448d7c1c708a145de.html

 LVS_RealServer 脚本

#!/bin/bash
SNS_VIP=192.168.16.200
. /etc/rc.d/init.d/functions

case "$1" in
start)
ifconfig lo:0 $SNS_VIP netmask 255.255.255.255 broadcast $SNS_VIP
/sbin/route add -host $SNS_VIP dev lo:0
echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce
sysctl -p >/dev/null
echo "RealServer Start Ok"
;;
stop)
ifconfig lo:0 down
route del $LVS_VIP >/dev/null 2 >&1
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce
echo "RealServer Stoped"
;;
*)
echo "Usage: $0 {start|stop}"
exit 1
esac