#!/bin/bash

if ! type bc > /dev/null 2>&1
then
	echo "bc nicht installiert"
	exit 1
fi

path=$(find /usr/lib* -name check_load)
processors="$(grep processor -c /proc/cpuinfo)"
warn1perc="70"
warn5perc="60"
warn15perc="50"

crit1perc="90"
crit5perc="80"
crit15perc="70"


#Formel

# y = c * p / 100
# y: nagios value
# c: number of cores
# p: wanted load procent

# 4 cores
# time        1 minutes    10 minutes     15 minutes
# warning:    90%          70%            50%
# critical:   100%         80%            60%

warn1=$(echo "scale=2; $processors * $warn1perc / 100" | bc)
warn5=$(echo "scale=2; $processors * $warn5perc / 100" | bc)
warn15=$(echo "scale=2; $processors * $warn15perc / 100" | bc)
crit1=$(echo "scale=2; $processors * $crit1perc / 100" | bc)
crit5=$(echo "scale=2; $processors * $crit5perc / 100" | bc)
crit15=$(echo "scale=2; $processors * $crit15perc / 100" | bc)

echo "command[check_load]=$path -w $warn1,$warn5,$warn15 -c $crit1,$crit5,$crit15"