php_opcache_

#!/bin/sh
###############################################################################
#
# Munin plugin to monitor Zend OPCache <http://php.net/manual/en/book.opcache.php>
# By Cédric Nirousset <http://nyrodev.com/>
# Inspired by plugin from By Daniel Lo Nigro <http://dan.cx/>
#
# Installation:
#  1. Copy php_opcache.php file onto server and verify you can hit it in a browser
#  2. Add to Munin config:
# [php_opcache_*]
# env.URL http://example/php_opcache.php
###############################################################################
# Settigs required for autoconf
#%# family=auto
#%# capabilities=autoconf suggest

URL=${URL:-'http://localhost/php_opcache.php'}

WGET=`which wget`;
WGET_FLAGS="-Yoff"; # refer to wget manual, you may set extra parameters like disable proxy

if [ "$1" = "autoconf" ]; then
        [ -z "$URL" ] && echo "no (edit URL config in header file !)" && exit 1
        [ -n "$URL" ] && echo "yes" && exit 0
fi

if [ "$1" = "suggest" ]; then
        echo "memory"
        exit 0
fi

REQUEST=${0##*/php_opcache_}

if [ "$1" = "config" ]; then

	if [ "$REQUEST" = "memory" ]; then
		echo "graph_title OPCache Memory usage"
		echo "graph_args -l 0 --base 1024"
		echo "graph_vlabel Memory usage"
		echo "graph_category php-opcache"
		echo "graph_order mem_used mem_free mem_wasted"
		echo "graph_total Total"
		echo "mem_free.label Memory Free"
		echo "mem_free.draw STACK"
		echo "mem_free.min 0"
		echo "mem_used.label Memory Used"
		echo "mem_used.draw AREA"
		echo "mem_used.min 0"
		echo "mem_wasted.label Memory Wasted"
		echo "mem_wasted.draw STACK"
		echo "mem_wasted.min 0"
	elif [ "$REQUEST" = "hitrate" ]; then
		echo "graph_title OPCache Hit rate"
		echo "graph_args -l 0 --upper-limit 100"
		echo "graph_vlabel Hit rate"
		echo "graph_category php-opcache"
		echo "hitrate.label Hitrate"
		echo "hitrate.draw LINE2"
		echo "hitrate.min 0"
	elif [ "$REQUEST" = "hits" ]; then
		echo "graph_title OPCache Hits"
		echo "graph_args -l 0"
		echo "graph_vlabel Hits per second"
		echo "graph_category php-opcache"
		echo "hits.label Hits"
		echo "hits.draw LINE2"
		echo "hits.type DERIVE"
		echo "hits.min 0"
	elif [ "$REQUEST" = "misses" ]; then
		echo "graph_title OPCache Misses"
		echo "graph_args -l 0"
		echo "graph_vlabel Misses per second"
		echo "graph_category php-opcache"
		echo "misses.label Misses"
		echo "misses.draw LINE2"
		echo "misses.type DERIVE"
		echo "misses.min 0"
	elif [ "$REQUEST" = "keys" ]; then
		echo "graph_title OPCache Keys"
		echo "graph_args -l 0"
		echo "graph_vlabel Keys"
		echo "graph_category php-opcache"
		echo "graph_order used_keys free_keys"
		echo "graph_total Total"
		echo "used_keys.label Cached keys"
		echo "used_keys.draw AREASTACK"
		echo "free_keys.label Free keys"
		echo "free_keys.draw AREASTACK"
	fi;

	exit 0

fi

###############################################################################

[ -x $WGET ] && $WGET -q $WGET_FLAGS "$URL?req=$REQUEST" -O - && exit 0

exit 1