zabbix 监控 lvs ipvsadm
zabbix 监控lvs 我想像中比较好弄，但是实际中遇到了权限的问题。记下，供有需要的朋友参考。一、环境说明
zabbix:2.0.6
ipvsadm:1.24
OS:CentOS 5.4 x86
dip:192.168.100.14
rip:192.168.100.22
rip:192.168.100.24
rip:192.168.100.76
rip:192.168.100.101
二、新建脚本
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[*] # pwd
[*] /etc/zabbix
[*]
[*]
[*] # cat lvs-status.sh
[*] #!/bin/bash
[*] # get lvs connection @2013/09/12 by v1
[*] # author:lizonggang
[*]
[*]
[*] function AllConn {
[*] sudo /sbin/ipvsadm -L -n |egrep -v 'TCP|UDP' |awk '{print $5}'| awk 'BEGIN{sum=0}{sum+=$1}END{print sum}'
[*] }
[*] function 101Conn {
[*] sudo /sbin/ipvsadm -L -n | grep 100.101|awk '{print $5}'
[*] }
[*] function 22Conn {
[*] sudo /sbin/ipvsadm -L -n | grep 100.22|awk '{print $5}'
[*] }
[*] function 24Conn {
[*] sudo /sbin/ipvsadm -L -n | grep 100.24|awk '{print $5}'
[*] }
[*] function 76Conn {
[*] sudo /sbin/ipvsadm -L -n | grep 100.76|awk '{print $5}'
[*] }
[*]
[*] function AllInConn {
[*] sudo /sbin/ipvsadm -L -n |egrep -v 'TCP|UDP' |awk '{print $6}'| awk 'BEGIN{sum=0}{sum+=$1}END{print sum}'
[*] }
[*] function 101InConn {
[*] sudo /sbin/ipvsadm -L -n | grep 100.101|awk '{print $6}'
[*] }
[*] function 22InConn {
[*] sudo /sbin/ipvsadm -L -n | grep 100.22|awk '{print $6}'
[*] }
[*] function 24InConn {
[*] sudo /sbin/ipvsadm -L -n | grep 100.24|awk '{print $6}'
[*] }
[*] function 76InConn {
[*] sudo /sbin/ipvsadm -L -n | grep 100.76|awk '{print $6}'
[*] }
[*]
[*]
[*] # Run the requested function
[*] $1
三、修改配置文件
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[*] zabbix agent 添加如下,并重启agent.
[*] # vim zabbix_agentd.conf
[*] ### ipvsadm Active
[*] UserParameter=lvs.AllConn
[*],/etc/zabbix/lvs-status.sh AllConn
[*] UserParameter=lvs.101Conn
[*],/etc/zabbix/lvs-status.sh 101Conn
[*] UserParameter=lvs.22Conn,/etc/zabbix/lvs-status.sh 22Conn
[*] UserParameter=lvs.24Conn,/etc/zabbix/lvs-status.sh 24Conn
[*] UserParameter=lvs.76Conn,/etc/zabbix/lvs-status.sh 76Conn
[*] ### ipvsadm InActive
[*] UserParameter=lvs.AllInConn,/etc/zabbix/lvs-status.sh AllInConn
[*] UserParameter=lvs.101InConn,/etc/zabbix/lvs-status.sh 101InConn
[*] UserParameter=lvs.22InConn,/etc/zabbix/lvs-status.sh 22InConn
[*] UserParameter=lvs.24InConn,/etc/zabbix/lvs-status.sh 24InConn
[*] UserParameter=lvs.76InConn,/etc/zabbix/lvs-status.sh 76InConn
# chmod +x lvs-status.sh
四、排错
由于之前lvs-status.sh 脚本没有加入sudo ,所以看agent日志报如下：
# tail -f /tmp/zabbix_agentd.log
Can't initialize ipvs: Permission denied (you must be root)
Are you sure that IP Virtual Server is built in the kernel or as module?
但是加入sudo 又报如下：
sudo: sorry, you must have a tty to run sudo
最终解决办法是visudo 修改如下：
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[*] # visudo
[*] #Defaults requiretty
[*]
[*] 添加
[*] zabbix ALL=(ALL) NOPASSWD:/sbin/ipvsadm
问题是解决了，但是不知道#Defaults requiretty 这样会不会有其它的问题？？
五、zabbix server 测试
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[*] # zabbix_get -s 192.168.100.14 -p 10050 -k "lvs.AllConn"
[*] 2326
[*]
[*]
六、添加图型
web界面添加图型。
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