开发nagios插件监控lvs中realserver

环境：

[root@long62]# ifconfig eth0|grep Mask|awk -F '[ :]' '{print $13}'
192.168.200.62

[root@long62]# uname -r
2.6.32-431.el6.x86_64

　　

[root@long63]# ifconfig eth0|grep Mask|awk -F '[ :]' '{print $13}'
192.168.200.63

[root@long63]# uname -r
2.6.32-431.el6.x86_64

　　

　　

　　

nagios监控主机兼SIP：192.168.200.62  

VIP：192.168.200.66

RIP：192.168.200.63

操作步骤

注意：lvs的配置，nagios服务端和客户端安装及配置在此略过

第一步：在RIP机器/usr/local/nagios/libexec目录下建立check_lvs_lo,并授权755

[root@long63 libexec]# vi check_lvs_lo 

#!/bin/sh
if [ `ifconfig|grep lo:|wc -l` -eq 1 ]
   then
     echo "`uname -n`'s lo:66 is ok"
     exit 0
else
     echo "`uname -n`'s lo:66 is not ok"
     exit 2
fi

　　

[root@long63 libexec]# chmod 755 check_lvs_lo 

第二步：在RIP机器/usr/local/nagios/etc/nrpe.cfg文件中添加下面一行，并重启nrpe

echo "command[check_rs]=/usr/local/nagios//libexec/check_lvs_lo">>/usr/local/nagios/etc/nrpe.cf

 

　　

[root@long63 /]# ps -ef |grep nrpe
nagios   31108     1  0 14:57 ?        00:00:00 /usr/local/nagios/bin/nrpe -c /usr/local/na
gios/etc/nrpe.cfg -droot     31425 30935  0 16:21 pts/0    00:00:00 grep nrpe
[root@long63 /]# pkill nrpe
[root@long63 /]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
[root@long63 /]# ps -ef |grep nrpe
nagios   31430     1  0 16:22 ?        00:00:00 /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
root     31432 30935  0 16:22 pts/0    00:00:00 grep nrpe

　　

第三步：在监控主机192.168.200.62机器编辑sevices.cfg,在最后添加以下内容

define service{
        use                             generic-service
        host_name                       063-client01
        check_command                   check_nrpe!check_rs
        service_description             lvs_lo
        max_check_attempts              3
        normal_check_interval           10
        retry_check_interval            2
        contact_groups                  admins
        notification_options            w,u,c,r
        notification_interval           60
        notification_period             24x7
        check_period                    24x7
}

第四步：重启nagios服务

[root@long62 ~]# /etc/init.d/nagios checkconfig
Running configuration check... OK.
[root@long62 ~]# /etc/init.d/nagios reload
Running configuration check...done.
Reloading nagios configuration...done

验证结果