A simple example of nagios monitoring scripts for virtual machines via the COLLECTD tool

After installing the COLLECTD tool on the host, you can  such as cpu,memery,if-traffic of the virtual machine on the host by using the COLLECTD tool. Monitoring of these data can be achieved through Nagios monitoring scripts.

The following is a simple monitoring virtual machine memory script:

#!/bin/bash#desc:to check memory about vm instancestate_ok=0state_warning=1state_ Critical=2state_unknown=3collectd_home=/usr/local/collectdcollectd_ctl= $COLLECTD _home/bin/collectdctlvmname=$ 1function usage () {        msg= "$0 : use to  Check vm memery usage for nagios "        echo   "****************************************************"          echo -e  "\033[1;94m${msg}\033[0m"         echo -e  " Usage: "        echo -e "         $0 [-w warning_value -c critical_value] vm_name "         echo -e  "       $0 vmname "          echo  "****************************************************"}if [ $# -eq  0 ];then        usage         exit 1fimem_used= ' $COLLECTD _ctl getval  $vmname/virt-$vmname/memory-rss |  awk -f  "="   ' {print $2} '  | awk  ' {printf ("%.1f\n", $0/1024/1024)} ' Data= ' mem=$ mem_used "if [ -z  $mem _used ];thenecho " unkown: fail to find vm_ instance! " exit  $STATE _unknownelseecho  "OK - USED : ${MEM_USED}MB | ${DATA}MB" exit  $STATE _OKFI

This article from "Month Child" blog, declined reprint!

A simple example of nagios monitoring scripts for virtual machines via the COLLECTD tool