! Configuration File for keepalived  

global_defs {

   notification_email {

         linuxedu@foxmail.com

         mageedu@.com

   }

   notification_email_from kanotify@magedu.com

   smtp_connect_timeout

   smtp_server 127.0.0.1

   router_id LVS_DEVEL

}  

vrrp_script chk_haproxy {

    script "killall -0 haproxy"

    interval

    weight

}  

vrrp_script chk_mantaince_down {

   script "[[ -f /etc/keepalived/down ]] && exit 1 || exit 0"

   interval

   weight

}

vrrp_instance VI_1 {

    interface eth0

    state MASTER  # BACKUP for slave routers

    priority   #  for BACKUP

    virtual_router_id

    garp_master_delay  

    authentication {

        auth_type PASS

        auth_pass password

    }

    track_interface {

       eth0

    }

    virtual_ipaddress {

        172.16.100.1/ dev eth0 label eth0:

    }

    track_script {

        chk_haproxy

        chk_mantaince_down

    }  

    notify_master "/etc/keepalived/notify.sh master"

    notify_backup "/etc/keepalived/notify.sh backup"

    notify_fault "/etc/keepalived/notify.sh fault"

} 

注意：

、上面的state为当前节点的起始状态，通常在master/slave的双节点模型中，其一个默认为MASTER，而别一个默认为BACKUP。

、priority为当关节点在当前虚拟路由器中的优先级，master的优先级应该大于slave的；

下面是一个notify.sh脚本的简单示例：

#!/bin/bash

# Author: MageEdu <linuxedu@foxmail.com>

# description: An example of notify script

# 

vip=172.16.100.1

contact='root@localhost'

Notify() {

    mailsubject="`hostname` to be $1: $vip floating"

    mailbody="`date '+%F %H:%M:%S'`: vrrp transition, `hostname` changed to be $1"

    echo $mailbody | mail -s "$mailsubject" $contact

}

case "$1" in

    master)

        notify master

        /etc/rc.d/init.d/haproxy start

        exit

    ;;

    backup)

        notify backup

        /etc/rc.d/init.d/haproxy restart

        exit

    ;;

    fault)

        notify fault

        exit

    ;;

    *)

        echo 'Usage: `basename $0` {master|backup|fault}'

        exit

    ;;

esac