File monitoring-plugins.check_cups.sh of Package monitoring-plugins.30245
#!/bin/bash
# check_cups - nagios plugin
#
# Copyright (C) 2008-2010, Novell, Inc.
# Copyright (C) 2011-2013, SUSE Linux Products GmbH
# Author: Martin Caj <mcaj@suse.cz>
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# * Neither the name of the Novell nor the names of its contributors may be
# used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#
# Autor notes:
# I`d like to thank to John E. Vincent (nagios-plugs@lusis.org)
# I learn a lof from his check CUPS print queue plugin.
# Then I`d like to thank to Mark Shirley for his check_cups_printer.sh
# script, which was also inspiration for me.
# Both of them you can find on http://exchange.nagios.org/ web site.
# Martin Caj 31/01/2013 <mcaj@suse.cz>
#
# version 0.3 has no awk any more, cut can do it as well.
# the appamor profile was fixed as well.
# Martin Caj 01/11/2013
#
# check_cups - nagios plugin for checking cups service
# Description:
#
# This plugin will check the status of a remote CUPS
# print service for the printer status, then if status is ok
# it will check the queue. It can check all avaible printes
# on the cups, or just one of them.
# Then the plugin will check the queue:
# it will provide the size of the queue
# and optionally the age of the queue
#
# Version : 0.3
#searchning the lpstat:
LPSTAT="$(which lpstat)"
DEBUG='no'
# debug the script:
#set -x
# Nagios return codes
STATE_OK=0
STATE_WARNING=1
STATE_CRITICAL=2
STATE_UNKNOWN=3
STATE_DEPENDENT=4
# check it lpstat is missing.
if [ ! -x "$LPSTAT" ]
then
echo "UNKNOWN: "$LPSTAT" not found or is not executable by the nagios user"
exitstatus="$STATE_UNKNOWN"
exit "$exitstatus"
fi
PROGNAME=$(basename $0)
print_usage() {
# Name: print_usage
# Desc: It just prints the usage.
echo "Usage: $PROGNAME -H <hostname> -w <size warning level> -c <size critical level> [-P] [-p<The CUPS printer name>] [-Q <s|b>] [-a <max age>] [-d]"
echo
echo "Notes:"
echo "-H <hostname> : Hostname - Can be a hostname or IP address."
echo "-P : Check only the printers status."
echo "-p <printername> : will check only the specified printer."
echo "-Q <s|b> : Type of check - Can be queue size (s) or both queue size and queue age (b)."
echo "-w <int> : WARNING level for queue size."
echo "-c <int> : CRITICAL level for queue size."
echo "-a <int> : Max age of queue. Returns CRITICAL if jobs exists longer than <max age> days."
echo "-d : enable debug output"
echo
}
print_help() {
# Name: print_help
# Desc: Print the usage and help.
print_usage
echo
echo "This plugin will check the CUPS print service for the printer status."
echo "It can check the queue on a remote (or local with -H localhost) CUPS server."
echo "It can check both: the size of the queue and the age of the oldest print job in the queue."
echo "-w and -c are for warning and critical levels of the queue size."
echo "-a is optional for specifying the max age of a job in the print queue. Anything older than <max age>"
echo "will return a CRITICAL"
echo "For more details have look into the README file. "
echo
exit 0
}
check_queue_size() {
# Name: check_queue_size
# Desc: It check the status of the CUPS queue size.
# $exitstatus= might be ok|warn"crittical deppends on -w and -c
if [ "$JOBCOUNT" -ge "$critlevel" ]
then
MESSAGE="CRITICAL: CUPS queue size - "$JOBCOUNT"| "$PERFDATA""
exitstatus="$STATE_CRITICAL"
elif [ "$JOBCOUNT" -ge "$warnlevel" ]
then
MESSAGE="WARNING: CUPS queue size - "$JOBCOUNT"| "$PERFDATA""
exitstatus="$STATE_WARNING"
else
MESSAGE="OK: CUPS queue size - "$JOBCOUNT"| "$PERFDATA""
exitstatus="$STATE_OK"
fi
}
check_printer_status() {
# Name:check_printer_status
# Desc: It check status of all printers or one specific printer
# output is store in $OUTPUT and $exitstatus
if [ -z "$printername" ]
then
if [ "$DEBUG" == 'yes' ]; then
echo "Checking all printers..."
fi
RESULT=$("$LPSTAT" -h "$hostname" -p )
if [ $? != 0 ]
then
echo "ERROR: Probably wrong host name: "$hostname", or CUPS is not running."
exit "$STATE_UNKNOWN"
fi
else
if [ "$DEBUG" == 'yes' ]; then
echo "Checking only printer: $printername"
fi
RESULT=$("$LPSTAT" -h "$hostname" -p "$printername")
if [ $? != 0 ]
then
echo "ERROR: the printer $printername doesn't exist on CUPS server $hostname."
echo "please check command: '$LPSTAT -h $hostname -p' without printer name."
exit "$STATE_UNKNOWN"
fi
fi
case "$RESULT" in
*Rejecting*)
messages=$(echo "$RESULT"|grep -i rejecting )
OUTPUT="CRITICAL - CUPS printer is rejecting jobs for: $messages."
exitstatus="$STATE_CRITICAL"
;;
*Unable*)
messages=$(echo "$RESULT"|grep -i unable )
OUTPUT="CRITICAL - CUPS Unable to connect: $messages."
exitstatus="$STATE_CRITICAL"
;;
*disabled*)
messages=$(echo "$RESULT"|grep -i disabled)
OUTPUT="CRITICAL - CUPS printer: $messages."
exitstatus="$STATE_CRITICAL"
;;
*Paused*)
messages=$(echo "$RESULT"|grep -i paused)
OUTPUT="WARNING: - CUPS printer is: $messages."
exitstatus="$STATE_WARNING"
;;
*printing*)
OUTPUT="OK - CUPS printer is printing now."
exitstatus="$STATE_OK"
;;
*idle*)
OUTPUT="OK - CUPS printer $printername is idle."
exitstatus="$STATE_OK"
;;
*)
OUTPUT="CRITICAL - Unknown error occured while checking: $RESULT."
exitstatus="$STATE_CRITICAL"
;;
esac
}
# Test how many variable we got on command line
# The minimum for test printers is 3
if [ $# -lt 3 ]; then
print_usage
exit "$STATE_UNKNOWN"
fi
# this set default exit status to:
exitstatus="$STATE_UNKNOWN"
# by default is test pritner disabled, you must allow it with -p $printer or -P all printers
testprinter="0"
# testing arguments:
while test -n "$1"; do
case "$1" in
--help)
print_help
exit "$STATE_OK"
;;
-h)
print_help
exit "$STATE_OK"
;;
-P)
testprinter="1"
;;
-p)
testprinter="2"
printername="$2"
shift
;;
-H)
hostname="$2"
shift
;;
-Q)
testtype="$2"
shift
;;
-w)
warnlevel="$2"
shift
;;
-c)
critlevel="$2"
shift
;;
-a)
maxage="$2"
shift
;;
-d)
DEBUG='yes'
;;
esac
shift
done
# Check arguments for validity:
if [ -z "$hostname" ]
then
echo "You must specify a hostname (or localhost to test the local system)" >&2
print_usage
exitstatus="$STATE_UNKNOWN"
exit "$exitstatus"
fi
# testing printer(s)
if [ "$testprinter" -eq "2" ] # Check specific printer and continue with the script
then
check_printer_status "$printername"
if [ -z "$testtype" ] # exit if there is no -Q checks
then
echo "$OUTPUT"
exit "$exitstatus"
fi
elif [ "$testprinter" -eq "1" ]; then # check all printers
check_printer_status
if [ -z "$testtype" ]; then # exit if there is no -Q checks
echo "$OUTPUT"
exit "$exitstatus"
fi
else # no cuos check is need
if [ "$DEBUG" == 'yes' ]; then
echo "No printer check required. Checking the queue ..."
fi
fi
# testing arguments for the queue checks:
if [[ -z "$critlevel" || -z "$warnlevel" ]] # Did we get warn and crit values?
then
echo "You must specify a warning and critical level"
print_usage
exitstatus="$STATE_UNKNOWN"
exit "$exitstatus"
elif [ $critlevel -lt $warnlevel ] # Do the warn/crit values make sense?
then
echo "CRITICAL value of $critlevel is less than WARNING level of $warnlevel"
print_usage
exitstatus="$STATE_UNKNOWN"
exit "$exitstatus"
fi
# what kind of queue test will be run:
if [ -z "$testtype" ]
then
echo "You must specify a test type"
print_usage
exitstatus="$STATE_UNKNOWN"
exit "$exitstatus"
# this is a very nice elif, it match if -a X is missing
elif [[ "$testtype" = [b]* && -z "$maxage" ]]
then
echo "You must specify <max age> when using a test type of 'b'"
print_usage
exitstatus="$STATE_UNKNOWN"
exit "$exitstatus"
else
if [ "$DEBUG" == 'yes' ]; then
echo "Testing queue on $hostname ..."
fi
JOBTMP=$(mktemp -t lpstat.XXXXXX) # Create a tmpfile to store the lpstat results
STALEJOBCOUNT=0 # default number of old jobs
CURDATETS=$(date +%s) # Get the current date as unixtime
"$LPSTAT" -h "$hostname" -o > "$JOBTMP" # run the lpstat command against the host.
if [ $? -ne 0 ]
then
rm -rf "$JOBTMP"
echo "UNKNOWN: lpstat command returned an error. Please test this script manually."
exitstatus="$STATE_UNKNOWN"
exit "$exitstatus"
fi
JOBCOUNT=$(wc -l < $JOBTMP) # populate the jobcount
PERFDATA="print_jobs=${JOBCOUNT};${warnlevel};${critlevel};0"
if [[ "$JOBCOUNT" -gt 0 && "$maxage" ]]
then
MAXAGETS=$(echo "86400 * $maxage" | bc) # 86400 seconds in a day * maxage
exec<"$JOBTMP" # read the file to determine job age
while read PRINTJOB
do
# Grab the job date from the job listing
JOBDATE=$(echo "$PRINTJOB" | cut -c50-73)
# Convert the job date to unixtime
JOBDATETS=$(date --date="$JOBDATE" +%s)
DATEDIFF=$(echo "($CURDATETS - $JOBDATETS)" | bc)
if [ $DATEDIFF -gt $MAXAGETS ]
then
MESSAGE="CRITICAL: Some CUPS jobs are older than $maxage days| $PERFDATA"
exitstatus="$STATE_CRITICAL"
else
check_queue_size
fi
done
else
check_queue_size
fi
rm -rf "$JOBTMP"
fi
# end: print the results and end with exit code for Nagios
echo "$OUTPUT"
echo "$MESSAGE"
exit "$exitstatus"
