Add new plugin to check process agw

https://exchange.nagios.org/directory/Plugins/Operating-Systems/Linux/check_proc_age-2Esh/details

diff --git a/plugins/check_proc_age b/plugins/check_proc_age
new file mode 100755 (executable)
index 0000000..b79f833
--- /dev/null
+++ b/plugins/check_proc_age
@@ -0,0 +1,101 @@
+#! /bin/bash
+ 
+# Nagios plugin
+# created 09.01.2011 by symphonic.mushroom@gmail.com
+# modified 04.24.2012 by symphonic.mushroom@gmail.com with the advices from formwandler
+# modified 07.22.2017 by symphonic.mushroom@gmail.com with the help from Toby Wahlers toby@100.rpm.com
+# check if processes matching to a pattern are exceeding a given elapsed time
+# return a Nagios exit code depending on the result
+# 0 = OK
+# 1 = WARNING
+# 2 = CRITICAL
+# 3 = UNKNOWN
+ 
+ 
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+ 
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+ 
+ 
+# for help printing
+print_help() {
+        echo "This Nagios plugin check if processes matching to a pattern are exceeding a given elapsed time"
+        echo "Usage : $0 -p <process_name> -w <seconds> -c <seconds> "
+        echo " -p parameter : name of the monitoring process. For granularity, quote commands with spaces."
+        echo " -w parameter : minimal elapsed time for status WARNING on NAGIOS, in seconds."
+        echo " -c parameter : minimal elapsed time for status CRITICAL on NAGIOS, in seconds."
+       echo "returned performance data : number of process; oldest time in minutes; warning time in minutes; critical time in minutes; 0;"
+        exit 3
+}
+ 
+# check if there is at least one argument
+if [ -z $1 ]
+        then echo "Missing arguments"
+        echo "try \'$0 --help\' for help"
+        exit 3
+fi
+ 
+# print help
+if [[ ( $1 = "--help" || $1 = "-h" ) ]]
+        then print_help
+        exit 3
+fi
+ 
+# assign value to arguments
+# print an error in case of unkown argument
+while getopts ":w:c:p:" options
+do
+    case $options in
+        w ) warning=$OPTARG ;;
+        c ) critical=$OPTARG ;;
+        p ) proc=$OPTARG ;;
+        * ) echo "Unknown argument"
+        echo "try \'$0 --help\' for help"
+        exit 3 ;;
+    esac
+done
+ 
+# check if all arguments are present
+if [[ ( -z $warning || -z $critical || -z $proc ) ]]
+        then echo "Missing argument"
+        echo "try \'$0 --help\' for help"
+        exit 3
+fi
+ 
+#calculate number of process
+nbproc=$(ps -A -o args | grep -w "$proc" | grep -v $0 | grep -v grep | wc -l)
+if [ $nbproc -gt 0 ]
+        then
+ 
+#calculate age of oldest process
+        ageproc=$(ps -A -o etime,comm,args | grep "$proc" | grep -v $0 | grep -v grep | gawk '{split($1,t,":");split(t[1],td,"-");if (td[2]) {ta=td[1]*86400; t[1]=td[2]} else {ta=0}; if (t[3]) {$1=(t[1]*60+t[2])*60+t[3]+ta} else {$1=t[1]*60+t[2]};if (NR==1) {maxi=$1;} else {if ($1>maxi){maxi=$1;}}};END {print maxi}')
+        case $ageproc in
+                ?|[0-5]? ) maxage=$ageproc" Seconds";;
+                ??|???|[0-2]???|3[0-5]?? ) maxage=$(($ageproc/60))" Minutes";;
+                * ) maxage=$(($ageproc/3600))" Hours "$(($ageproc % 3600 / 60))" minutes";;
+        esac
+         msg="there are $nbproc process $proc, oldest has got $maxage age"
+         perfmaxage=$(($ageproc/60))
+         perfdata="Processes=${nbproc:-0} MaxAge=${perfmaxage:-0}Minutes;$(($warning/60));$(($critical/60));0;"
+                if [ $ageproc -gt $critical ]
+                        then echo "CRITICAL: $msg | $perfdata"
+                        exit 2
+                elif [ $ageproc -gt $warning ]
+                        then echo "WARNING: $msg | $perfdata"
+                        exit 1
+                else echo "OK: $msg | $perfdata"
+                exit 0
+                fi
+        else
+        echo "OK: there is no process matching $proc"
+        exit 0
+fi