Munin contributed plugins

#!/bin/bash

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#

# Plugin to monitor the size of the specified directory

#

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#

# Parameters understood:

#

# 	config   (required)

# 	autoconf (optional - checks if the path exists etc, not so advanced feature)

#

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#

# Requirements

# - bash (or change first line to sh instead of bash or any other shell)

# - existing and readable directory to scan

# - du command, it exists on most of the *nix operating systems 

#

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# 

# Configuration

#

# directory to check

DIR="/var/cache/apache2/"

# unique id, just in case you got multiple such scripts, change id as needed (i guess it should be obsolete, not tested)

ID=1;

# - make sure that user/group that executes this script has access to the directory you have configured

#  otherwise run it as another user, edit plugins-conf.d/munin-node and stuff it with example below code (not suggested)

# remember to remove hashes from the beginning of the lines

#

#  [du]

#   user root

#

# - by default the value is in MegaBytes, to change it you should edit below line in the script to something else, recognizeable by du (see man du)

#   du -sm $DIR    in MB

#   du -sk $DIR    in KB

#

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#

# Changelog

#

# Revision 0.1 Tue 03 Feb 2009 02:16:02 PM CET _KaszpiR_

# - initial release, 

# 

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# Magick markers (optional - used by munin-config and som installation

# scripts):

#%# family=auto

#%# capabilities=autoconf

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

	if [ -d $DIR ]; then

	    echo "yes"

	    exit 0

	else

		echo "no (check your path)"

		exit 1

	fi

fi

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

	echo "graph_title Directory size: $DIR"

	echo "graph_vlabel size MB"

	echo "graph_category disk"

	echo "graph_info Size of $DIR"

	echo "dir$ID.label size"

	echo "dir$ID.min 0"

	echo "dir$ID.info Shows du -sm for specified directory"

	exit 0

fi

echo -n "dir$ID.value "

if [ -d $DIR ]; then

    SIZE=`du -sm $DIR | cut -f1`

    echo $SIZE

    exit 0

else

    echo "U"

    exit 1

fi