Munin contributed plugins

#!/bin/bash

# -*- sh -*-

# vim: ft=sh

: << =cut

=head1 NAME

    du_pattern - plugin to monitor files size selected and grouped by a pattern

=head1 CONFIGURATION

    [du_pattern]

    env.DIR /var/log/apache/

    env.PATTERN www.example.com www.sample.com

    In PATTERN, all items will be expanded like this : www.example.com*

    In this example, you will monitor the size of :

        /var/log/apache/www.example.com*

        /var/log/apache/www.sample.com*

    It's useful if you want to graph the size of your sites' log archives for example,

    one graph per site.

=head1 AUTHOR AND COPYRIGHT

    Copyright 2013-2014 Luc Didry <luc AT didry.org>

=head1 LICENSE

    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

    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/>.

=cut

NAME=${0##*/du_pattern_}

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

    echo "multigraph du_pattern_${NAME}"

    echo "graph_title Files size in ${DIR}"

    echo "graph_vlabel size of files"

    echo "graph_category disk"

    echo "graph_total Total"

    echo "graph_info This graph shows the size of files grouped by a pattern."

    FIRST=1

    for i in ${PATTERN}

    do

        CLEAN=${i//\./_}

        echo "$CLEAN.label $CLEAN"

        if [[ $FIRST -eq 1 ]]

    then

        echo "$CLEAN.draw AREA"

        FIRST=0

        else

        echo "$CLEAN.draw STACK"

        fi

    done

    exit 0

fi

for i in ${PATTERN}

do

    CLEAN=${i//\./_}

    FILES="${DIR}/${i}*"

    echo -n "$CLEAN.value "

    echo $(du -cbs ${FILES} | grep total | cut -f 1)

done

exit 0