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contrib-munin/plugins/other/dirsizes

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#!/usr/bin/perl
# -*- perl -*-
#
#
##############################################################################
#
#
# This munin plugin watches the sizes of the given directories.
# @author Kevin Fischer
# @version 2010/08/05
# @website http://kevin-fischer.de
#
# Copy this to your node's config file (default: plugin-conf.d/munin-node):
# [dirsizes]
# user root
# env.watchdirs /var/www,/tmp
#
# Change the env.watchdirs-variable according to your wishes.
# DONT FORGET TO RUN AS ROOT!
#
# You can test this plugin by calling it with params "test" and your watchdirs:
# ./dirsizes test /dir1,/tmp/dir2
#
#
##############################################################################
#
use strict;
my @watchdirs;
if ( exists $ARGV[0] and $ARGV[0] eq "test" ) {
# Split the watchdirs string
@watchdirs = split( ",", $ARGV[1] );
}
else {
# If no dirs are given, exit.
if ( !defined( $ENV{"watchdirs"} ) ) {
die "No directories given! See the manual at top of this plugin file.";
}
# Split the watchdirs string
@watchdirs = split( ",", $ENV{"watchdirs"} );
}
# Config or read request?
if ( exists $ARGV[0] and $ARGV[0] eq "config" ) {
# Munin basic info
print "graph_title Directory sizes\n";
print "graph_args --base 1024 --lower-limit 0\n";
print "graph_vlabel directory size\n";
print "graph_info Displays the sizes of all configured directories.\n";
print "graph_category disk\n";
print "graph_total Total\n";
# All available directories
foreach my $dir (@watchdirs) {
# Remove illegal characters
my $label = $dir;
$label =~ s@[\/-]@_@g;
# Print name
print "dir", $label, ".label ", $dir, "\n";
}
}
# Read request, output the directory sizes
else {
# All available directories
foreach my $dir (@watchdirs) {
# Remove illegal characters
my $label = $dir;
$label =~ s@[\/-]@_@g;
# Get the dirsize
my $dirsize = getSize($dir);
# Get the label
my $label = niceLabelname($dir);
# Print name
print "dir", $label, ".value ", $dirsize, ".0\n";
}
}
# Function: getSize($dir)
sub getSize {
my ($dir) = @_;
# Get the size via `du`
my @dirsize = split( ' ', `du -cb $dir | grep "total" | tail -1 ` );
return @dirsize[0];
}
# Remove illegal characters
sub niceLabelname {
my ($label) = @_;
$label =~ s@[\/-]@_@g;
return $label;
}
exit 0;