#!/bin/bash
#
# Usage: .//check_esx_cpu
#
# Description: 
#		This plugin will catch the CPU Load from an VMWare ESX Server, testet with ESX 3.5.0. 
#		the Current Version Supports 1 CPU with 4 Core's. Make sure that the script is fetiching the
#		right DATA. You can test it with the following command: 
#		[root@esx01]# esxtop -b -d 2 -n 1 | awk -F "," '{print $12}' 
#			      "\\esx01.local\Physical Cpu(_Total)\% Processor Time" 
#			      "3.91"
#		if you get soething like "Physical Cpu(3)", increase the value from '{print $12}' to 13,
#		or 16 if you have a 2 Quadcore CPUs, play around until you get the correct Data back from the server
#
# Created:      2008-09-23 (Sebastian Mueller)
#
# Changes:      2008-09-24      update Description (Sebastian Mueller)
#
#
#

##################################################################################


##################################################################################

PATH="/usr/bin:/usr/sbin:/bin:/sbin"

STATE_OK=0
STATE_WARNING=1
STATE_CRITICAL=2
STATE_UNKNOWN=3
STATE_DEPENDENT=4

print_gpl() {
    echo "This program is free software; you can redistribute it and/or modify"
    echo "it under the terms of the GNU General Public License as published by"
    echo "the Free Software Foundation; either version 2 of the License, or"
    echo "(at your option) any later version."
    echo ""
    echo "This program is distributed in the hope that it will be useful,"
    echo "but WITHOUT ANY WARRANTY; without even the implied warranty of"
    echo "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the"
    echo "GNU General Public License for more details."
    echo ""
    echo "You should have received a copy of the GNU General Public License"
    echo "along with this program; if not, write to the Free Software"
    echo "Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA"
}

print_help(){
        echo ""
        echo "System process and port check script for Nagios."
        echo "Tested on RHE3/4, Fedora 4, Solaris 9"
        echo ""
        echo "Usage: ./check_system_pp"
        echo "Website: http://www.nagiosexchange.org"
        echo ""
        print_gpl
}

while test -n "$1"
do
        case "$1" in
          *) print_help; exit $STATE_OK;;
        esac
done

check_processes_red()
{
        
        ESX_CPU=`sudo -u root esxtop -b -d 2 -n 1 | awk -F "," '{print $12}' |grep -v esx | tr -t '.' ',' | tr -d '"' | awk '{printf "%.0f",$1}'`
	exit_red=0

        if  [ $ESX_CPU -ge 95 ]; then
                exit_red=$STATE_CRITICAL
        elif [ $ESX_CPU -ge 80 ]; then
		exit_red=$STATE_WARNING
	elif [ $ESX_CPU -lt 79 ]; then
                exit_red=$STATE_OK
        fi
}

check_processes_red

final_exit=`expr  $exit_red `

if [ $final_exit -eq "0"  ]; then
        echo "SYSTEM OK - CPU LOAD Normal - Current Load: $ESX_CPU %"
        exitstatus=$STATE_OK

elif [ $final_exit -eq "1" ]; then
        echo "SYSTEM WARNING - CPU LOAD more then 85% - Current Load: $ESX_CPU %"
        exitstatus=$STATE_WARNING

elif [ $final_exit -ge "1" ]; then
        echo "SYSTEM CRITICAL - CPU LOAD more then 95% - Current Load: $ESX_CPU %"
        exitstatus=$STATE_CRITICAL
fi

exit $exitstatus