257 lines
7.6 KiB
Bash
Executable File
257 lines
7.6 KiB
Bash
Executable File
#!/bin/bash
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################################################################################
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# #
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# Copyright (C) 2011 Jack-Benny Persson <jake@cyberinfo.se> #
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# #
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# This program is free software; you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation; either version 2 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program; if not, write to the Free Software #
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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# #
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################################################################################
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###############################################################################
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# #
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# Nagios plugin to monitor CPU and M/B temperature with sensors. #
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# Written in Bash (and uses sed & awk). #
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# Latest version of check_temp can be found at the below URL: #
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# https://github.com/jackbenny/check_temp #
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# #
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# If you are having problems getting it to work, check the instructions in #
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# the README first. It walks you though install lm-sensors and getting it to #
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# display sensor data. #
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# #
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###############################################################################
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VERSION="Version 0.93"
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AUTHOR="(c) 2011 Jack-Benny Persson (jack-benny@cyberinfo.se)"
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# Sensor program
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SENSORPROG=$(whereis -b -B /{bin,sbin,usr,etc} /{bin,sbin,usr,etc}/* -f sensors | awk '{print $2}')
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# Ryan's note: utils.sh is installed with nagios-plugins in with the plugins
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# Check if utils.sh exists. This lets you use check_domain in a testing environment
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# or outside of Nagios.
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if [ -e "$PROGPATH/utils.sh" ]; then
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. "$PROGPATH/utils.sh"
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else
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STATE_OK=0
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STATE_WARNING=1
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STATE_CRITICAL=2
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STATE_UNKNOWN=3
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# STATE_DEPENDENT=4 (Commented because it's unused.)
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fi
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shopt -s extglob
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#### Functions ####
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# Print version information
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print_version()
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{
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echo "$0 - $VERSION"
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}
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#Print help information
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print_help()
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{
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print_version
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echo "$AUTHOR"
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echo "Monitor temperature with the use of sensors"
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/bin/cat <<EOT
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Options:
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-h
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Print detailed help screen
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-V
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Print version information
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-v
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Verbose output
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--sensor WORD
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Set what to monitor, for example CPU or MB (or M/B). Check sensors for the
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correct word. Default is CPU.
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-w INTEGER
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Exit with WARNING status if above INTEGER degrees
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-c INTEGER
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Exit with CRITICAL status if above INTEGER degrees
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EOT
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}
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###### MAIN ########
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# Warning threshold
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thresh_warn=
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# Critical threshold
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thresh_crit=
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# Hardware to monitor
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sensor=CPU
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# See if we have sensors program installed and can execute it
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if [[ ! -x "$SENSORPROG" ]]; then
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echo "It appears you don't have lm-sensors installed. You may find help in the readme for this script."
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exit $STATE_UNKNOWN
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fi
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# Parse command line options
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while [[ -n "$1" ]]; do
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case "$1" in
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-h | --help)
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print_help
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exit $STATE_OK
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;;
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-V | --version)
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print_version
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exit $STATE_OK
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;;
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-v | --verbose)
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: $(( verbosity++ ))
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shift
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;;
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-w | --warning)
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if [[ -z "$2" ]]; then
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# Threshold not provided
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echo "Option $1 requires an argument"
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print_help
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exit $STATE_UNKNOWN
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elif [[ "$2" = +([0-9]) ]]; then
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# Threshold is an integer
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thresh=$2
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else
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# Threshold is not an integer
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echo "Threshold must be an integer"
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print_help
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exit $STATE_UNKNOWN
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fi
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thresh_warn=$thresh
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shift 2
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;;
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-c | --critical)
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if [[ -z "$2" ]]; then
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# Threshold not provided
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echo "Option '$1' requires an argument"
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print_help
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exit $STATE_UNKNOWN
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elif [[ "$2" = +([0-9]) ]]; then
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# Threshold is an integer
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thresh=$2
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else
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# Threshold is not an integer
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echo "Threshold must be an integer"
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print_help
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exit $STATE_UNKNOWN
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fi
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thresh_crit=$thresh
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shift 2
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;;
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-\?)
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print_help
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exit $STATE_OK
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;;
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--sensor)
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if [[ -z "$2" ]]; then
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echo "Option $1 requires an argument"
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print_help
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exit $STATE_UNKNOWN
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fi
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sensor=$2
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shift 2
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;;
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*)
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echo "Invalid option '$1'"
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print_help
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exit $STATE_UNKNOWN
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;;
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esac
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done
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# Check if a sensor were specified
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if [[ -z "$sensor" ]]; then
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# No sensor to monitor were specified
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echo "No sensor specified"
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print_help
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exit $STATE_UNKNOWN
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fi
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#Get the temperature
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TEMP=`${SENSORPROG} | grep "$sensor" | cut -d+ -f2 | cut -c1-2 | head -n1`
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#Old way - Get the temperature
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#TEMP=`${SENSORPROG} | grep "$sensor" | awk '{print $3}' | cut -c2-3 | head -n1`
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# Check if the thresholds have been set correctly
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if [[ -z "$thresh_warn" || -z "$thresh_crit" ]]; then
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# One or both thresholds were not specified
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echo "Threshold not set"
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print_help
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exit $STATE_UNKNOWN
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elif [[ "$thresh_crit" -lt "$thresh_warn" ]]; then
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# The warning threshold must be lower than the critical threshold
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echo "Warning temperature should be lower than critical"
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print_help
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exit $STATE_UNKNOWN
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fi
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# Verbose output
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if [[ "$verbosity" -ge 1 ]]; then
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/bin/cat <<__EOT
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Debugging information:
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Warning threshold: $thresh_warn
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Critical threshold: $thresh_crit
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Verbosity level: $verbosity
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Current $sensor temperature: $TEMP
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__EOT
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echo "Temperature lines directly from sensors:"
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${SENSORPROG}
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fi
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# Get performance data for Nagios "Performance Data" field
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PERFDATA=`${SENSORPROG} | grep "$sensor" | head -n1`
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# And finally check the temperature against our thresholds
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if [[ "$TEMP" != +([0-9]) ]]; then
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# Temperature not found for that sensor
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echo "No data found for that sensor ($sensor) | $PERFDATA"
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exit $STATE_UNKNOWN
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elif [[ "$TEMP" -gt "$thresh_crit" ]]; then
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# Temperature is above critical threshold
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echo "$sensor CRITICAL - Temperature is $TEMP | $PERFDATA"
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exit $STATE_CRITICAL
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elif [[ "$TEMP" -gt "$thresh_warn" ]]; then
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# Temperature is above warning threshold
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echo "$sensor WARNING - Temperature is $TEMP | $PERFDATA"
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exit $STATE_WARNING
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else
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# Temperature is ok
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echo "$sensor OK - Temperature is $TEMP | $PERFDATA"
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exit $STATE_OK
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fi
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exit $STATE_UNKNOWN
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