add check check_php-fpm-status

check_php-fpm-status

+#!/bin/bash
+# ======================================================================
+#
+# NAGIOS CLIENT CHECK :: php-fpm requests
+#
+# ----------------------------------------------------------------------
+# script checks output of fpm "/status" and counts scoreboard chars
+# ----------------------------------------------------------------------
+# 2021-09-22  v0.1  <axel.hahn@iml.unibe.ch>  initial version
+# ======================================================================
+
+. `dirname $0`/inc_pluginfunctions
+
+tmpfile=/tmp/check_fpm_processes_1
+
+defaulturl=localhost/status
+
+# ----------------------------------------------------------------------
+# functions
+# ----------------------------------------------------------------------
+
+# get a value from fpm status
+#
+# example output:
+# pool:                 www
+# process manager:      dynamic
+# start time:           21/Sep/2021:16:01:12 +0200
+# start since:          65914
+# accepted conn:        34
+# listen queue:         0
+# max listen queue:     0
+# listen queue len:     0
+# idle processes:       6
+# active processes:     3
+# total processes:      9
+# max active processes: 6
+# max children reached: 0
+# slow requests:        0
+#
+# param  string  variable (part before ":")
+function _getvalue(){
+        grep "^$1:" $tmpfile | cut -d ":" -f 2 | awk '{ print $1 }'
+}
+
+# ----------------------------------------------------------------------
+# pre checks
+# ----------------------------------------------------------------------
+ph.require wget
+
+# ----------------------------------------------------------------------
+# check params
+# ----------------------------------------------------------------------
+
+# --- check param -h
+if [ "$1" = "-h" ]; then
+    echo "
+    Check PHP FPM status
+
+    usage: $0 [-u URL]
+
+        -u  url to fpm status page  (optional; default: $defaulturl)
+        -h  this help
+
+    "
+    exit 0
+fi
+
+# set default / override from command line params
+typeset -i iWarnLimit=`     ph.getValueWithParam 75 w "$@"`
+typeset -i iCriticalLimit=` ph.getValueWithParam 90 c "$@"`
+url=$( ph.getValueWithParam $defaulturl u "$@" )
+
+# --- get /server-status page
+wget --no-check-certificate -O $tmpfile $url 2>/dev/null
+if [ $? -ne 0 ]; then
+    rm -f $tmpfile
+    ph.abort "UNKNOWN: request to url $url failed. `wget --no-check-certificate -O - -S $url`"
+fi
+
+# ----------------------------------------------------------------------
+# get values from status output
+# ----------------------------------------------------------------------
+
+# --- handled requests per sec
+typeset -i iConn=$(  _getvalue "accepted conn")
+typeset -i iSpeed=$( ph.perfdeltaspeed "fpm-accepted" $iConn )
+
+# --- count slots
+typeset -i iActive=$(    _getvalue "active processes" )
+typeset -i iMaxActive=$( _getvalue "max active processes" )
+typeset -i iIdle=$(      _getvalue "idle processes")
+
+# --- experimental: generate warning / error 
+typeset -i iQueue=$(     _getvalue "listen queue len")
+typeset -i iMaxQueue=$(  _getvalue "max listen queue")
+typeset -i iSlow=$(      _getvalue "slow requests")
+typeset -i iMaxChilds=$( _getvalue "max children reached")
+
+
+# damn, count of slots is in the config only - not in status output
+# iUsage=$iActive*100/$iSlots
+# ph.setStatusByLimit $iUsage $iWarnLimit $iCriticalLimit
+if [ $iQueue -gt 0 -o $iSlow -gt 0 ]; then
+        ph.setStatus warning
+fi
+if [ $iMaxChilds -gt 0 ]; then
+        ph.setStatus critical
+fi
+
+
+# --- output
+ph.status "PHP-FPM: active: $iActive (max: $iMaxActive) .. wait: $iIdle .. queue: $iQueue (max: $iMaxQueue) .. speed: $iSpeed req per sec"
+
+if [ $iQueue -gt 0 ]; then
+        echo "WARNING: $iQueue queued requests were found"
+fi
+if [ $iSlow -gt 0 ]; then
+        echo "WARNING: $iSlow slow requests were found"
+fi
+if [ $iMaxChilds -gt 0 ]; then
+        echo "CRITICAL: max. children was reached $iMaxChilds"
+fi
+echo
+cat $tmpfile
+echo
+
+# --- add performnce data
+ph.perfadd "php-fpm-active"    "${iActive}"    "" "" 0 0
+ph.perfadd "php-fpm-maxactive" "${iMaxActive}" "" "" 0 0
+ph.perfadd "php-fpm-idle"      "${iIdle}"      "" "" 0 0
+ph.perfadd "php-fpm-queue"     "${iQueue}"     "" "" 0 0
+ph.perfadd "php-fpm-maxqueue"  "${iMaxQueue}"  "" "" 0 0
+ph.perfadd "php-fpm-slow"      "${iSlow}"      "" "" 0 0
+ph.perfadd "php-fpm-speed"     "${iSpeed}"     "" "" 0 0
+
+rm -f $tmpfile
+
+ph.exit
+
+# ----------------------------------------------------------------------