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monitoring-plugins
monitoring-plugins.check_cups.sh
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File monitoring-plugins.check_cups.sh of Package monitoring-plugins
#!/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"
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