Cacti 自定义脚本监控

*************************************************

脚本内容：

[root@cacti scripts]# cat get_snmp_network_data.sh

#!/bin/bash

# ========================================================================================

# goldengate health plugin for Nagios

#

# Written by : dd

# Release : 1.0.0

# Creation date : 2015-02-11

# Description : Nagios plugin (script) to check uptime .

# This script has been designed and written on Linux System.

#

# USAGE :./get_snmp_network_data.sh -v 2c -c sinolife 172.28.0.42 .1.3.6.1.4.1.15227.1.5.1.1.1.0

#

# Exemple: ./get_snmp_network_data.sh

#

#

# HISTORY :

# Release | Date | Authors | Description

# --------------+---------------+----------------------+-----------------------------------

# 1.0.0 | 2015.05.18 | dd | Create the script

# -----------------------------------------------------------------------------------------

# NOTICE:

#-----------------------------------------------------------------------------------------

# You should have the root Permissions ,You can use sudo to realize .

# -----------------------------------------------------------------------------------------

# Nagios return codes

WARNING=

CRITICAL=

BRIEF=0

SILENT=0

#定义 nagios返回的状态变量

STATE_OK=0

STATE_WARNING=1

STATE_CRITICAL=2

STATE_UNKNOWN=3

# 插件描述信息

PROGNAME="check_network_data.sh"

RELEASE="Revision 1.0.0"

AUTHOR="(c) 2015 dudong"

# Functions plugin usage

# 插件的使用方法函数

print_release() {

echo "$RELEASE $AUTHOR"

}

print_usage() {

echo ""

echo "$PROGNAME $RELEASE - check network script for Nagios"

echo ""

echo "Usage: get_snmp_network_data.sh"

echo ""

echo " -com COMMUNITY"

echo ""

echo " -i IPADDR"

echo ""

echo " -o OID"

echo ""

echo " -w warning"

echo ""

echo " -c critical"

echo ""

echo " -h Show this page"

echo ""

echo ""

echo " -v check the version"

echo "Usage: $PROGNAME"

echo "Usage: $PROGNAME --help"

echo ""

exit 0

}

print_help() {

print_usage

echo ""

echo "This plugin will check network "

echo ""

exit 0

}

# 传递参数

# process args

while [ ! -z "$1" ]; do

case $1 in

-com) shift; COMMUNITY=$1 ;;

-i) shift; IPADDR=$1 ;;

-o) shift; OID=$1 ;;

-w) shift; WARNING=$1 ;;

-c) shift; CRITICAL=$1 ;;

-h) show_help; exit 1 ;;

esac

shift

done

#获取数据

#UPDATE=$( uptime | awk '{print $3}')

MESSAGE_1=$(snmpwalk -v 2c -c $COMMUNITY $IPADDR $OID | awk '{print $5}')

MESSAGE=$(echo $MESSAGE_1 | awk -F'[".]' '{print $1}')

echo " data:$MESSAGE"

#判断

#if [[ $MESSAGE -ge $CRITICAL ]]; then

# echo "Critical - data is $MESSAGE | data=$MESSAGE"

# exit $STATE_CRITICAL

#

#elif [[ $MESSAGE -ge $WARNING ]]; then

# echo "Warning - data is $MESSAGE | data=$MESSAGE"

# exit $STATE_WARNING

#

#else

# echo "OK - data is $MESSAGE | data=$MESSAGE"

# exit $STATE_OK

#

#fi

#

#

You have mail in /var/spool/mail/root

[root@cacti scripts]#

把脚本上传至cacti的screpts目录下：/var/www/html/scripts

注意修改脚本权限

测试：[root@cacti scripts]# ./get_snmp_network_data.sh -com sinolife -i 172.28.0.41 -o .1.3.6.1.4.1.15227.1.5.1.1.2.0

data:57

脚本可以根据nagios的nrpe脚本进行修改，但cacti的输出结构更简单。

变量:值 变量:值

即可！！

创建数据输入方法：

/bin/bash <path_cacti>/scripts/get_snmp_network_data.sh -com <community> -i <hostname> -o <OID>

输入字段有3个，两个可以"从主机派生"，从主机派生，需要选择一下。

不能从主机派生，则需要自己输入：

输出字段一个:

创建数据模板：查询cpu的OID，红色部分注意修改。

其他的memery, session 一样方法，只是oid不同

创建图形模板：

对象：图形类型等

创建主机，然后添加图形即可。

查看数据源：

图形文件：

/var/www/html/rra/61/664.rrd

检查是否有值传进来：

[root@cacti log]# rrdtool lastupdate /var/www/html/rra/61/664.rrd

getsessiondata

1452834361: 1221

You have mail in /var/spool/mail/root

[root@cacti log]#

[root@cacti log]#

值1221 已传入rrd图形。

查看图形：

实时图形：