Check_VM for Oracle VM and Nagios.

Personal backup…

Refinements might be added if bugs or improvements are found. So keep an eye out for newer versions 😉

This script might also be compatible with other  Xen clones.


#!/usr/bin/perl
#
# Author : Chris Gralike
# Company: AMIS Services BV
#
# Simple but effective Oracle VM check command for use with nagios
# This command checks the state of any given VM machine using the XM command.
# It will try to match the friendly name as well as the system name.
# It will return OK - and usefull metadata on succes, NOK on failure.
# usage : check_xm vmname
# ########################

use strict;                     # Good practice
use warnings;                   # Good practice

my (@data, @values, @name, $vmname, $vmcheck, $i, $result);

# Get the command parameters
if( ($#ARGV + 1) == 1 ) {
$vmname = $ARGV['0'];
}else{
print "usage: ./check_xm vmname \n";
exit 1;
}

# Perform the actual test
open(XM, "xm list|");
$i = 0;
while(<XM>){
if($i > 0){
# Split the output in portions
@data = split(" ", $_);
# Get the human readable name
@name = split('_', $data['0']);
if(!$name['1']){
$name['1'] = 'dezeisnietingebruik!';
}
if(($vmname eq $name['1']) || ($vmname eq $data['0'])){
print "OK - $data['0'] is active with Id:$data['1'] $data['3']CPUs $data['2']M \n";
exit 0;
}
}
$i++;
}
close XM;

# If the loop was finished without result, then there is a problem!
print "NOK - $vmname is not running on this server\n";
exit 2;
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