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179 lines
3.9 KiB
Perl
179 lines
3.9 KiB
Perl
#!/usr/bin/perl -w
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# ---
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=head1 NAME
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check_du.pl - Nagios plugin for checking size of directories and files
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=head1 SYNOPSIS
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check_du.pl -P path/pattern [-v] \
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[-w warning_threshold] [-c critical_threshold]
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check_du.pl [-h|-V]
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=head1 OPTIONS
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=over 4
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=item -P|--path=expression
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Path expression for calculating size. May be a shell expression like
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/var/log/*.log
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=item -w|--warning=threshold
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threshold can be max (warn if < 0 or > max), min:max (warn if < min or >
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max), min: (warn if < min), or @min:max (warn if >= min and <= max). All
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values must be integer.
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=item -c|--critical=threshold
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see --warning for explanation of threshold format
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=item -t|--timeout=seconds
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timeout after check_du.pl exits.
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=item -v|--verbose
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increases verbosity, specify twice to see the original output from sapinfo.
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=item -V|--version
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print version an exit
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=item -h|--help
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print help message and exit
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=back
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=cut
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use strict;
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use warnings;
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use Nagios::Plugin 0.15;
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use Getopt::Long qw(:config no_ignore_case bundling);
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use Pod::Usage;
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my $np = Nagios::Plugin->new( shortname => "CHECK_DU" );
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my $warn_threshold = '0:';
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my $crit_threshold = '0:';
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my $what = '';
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my $denied = 0;
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my $size = 0;
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my $result = UNKNOWN;
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my $version = 'V1.2/2007-10-21/wob';
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my $printversion = 0;
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my $verbose = 0;
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my $help = 0;
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my $timeout = 10;
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my $debug = 0;
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# -- GetOpt
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GetOptions(
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"P|path=s" => \$what,
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"w|warning=s" => \$warn_threshold,
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"c|critical=s" => \$crit_threshold,
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"t|timeout=s" => \$timeout,
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"h|help" => \$help,
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"V|version" => \$printversion,
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"v|verbose+" => \$verbose,
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"d|debug:+" => \$debug,
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) or pod2usage({ -exitval => UNKNOWN,
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-verbose => 0,
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-msg => "*** unknown argument found ***" });
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pod2usage(-verbose => 2,
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-exitval => UNKNOWN,
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-output => \*STDOUT,
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) if ( $help );
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pod2usage(-msg => "\n$0 -- version: $version\n",
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-verbose => 0,
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-exitval => UNKNOWN,
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) if ( $printversion );
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pod2usage(-msg => "*** no path/pattern specified ***",
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-verbose => 0,
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-exitval => UNKNOWN,
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) unless $what;
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# -- Alarm
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$SIG{ALRM} = sub { $np->nagios_die("Timeout reached"); };
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alarm($timeout);
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# -- thresholds
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$np->set_thresholds(
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warning => $warn_threshold,
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critical => $crit_threshold);
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print "DEBUG: warn= $warn_threshold, crit= $crit_threshold\n" if ($debug);
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# -- main
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open ( OUT, "LANG=C /usr/bin/du -cs $what 2>&1 |" )
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or $np->nagios_die( "can't start /usr/bin/du" );
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while (<OUT>) {
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print "$_" if ($verbose);
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chomp $_;
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$denied++ if ( /Permission denied/i );
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if ( /^(\d+)\s+total$/i ) { # last line
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$size = $1;
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last;
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}
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}
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close (OUT);
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$np->add_perfdata( label => "size", value => $size,
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uom => "kB", threshold => $np->threshold() );
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if ( $denied ) {
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$np->nagios_exit( CRITICAL, "unreadable directories or files");
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}
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$result = $np->check_threshold( $size );
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alarm(0);
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$np->nagios_exit( $result, "check size: $size kByte");
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=head1 AUTHOR
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wob (at) swobspace (dot) net
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=head1 KNOWN ISSUES
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may be
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=head1 BUGS
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may be
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=head1 LICENSE
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License (and no
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later version).
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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=head1 HISTORY
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V1.2/2007-10-21 minor bugfixes (thanks to Ralph Grothe)
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V1.1/2007-10-07 timeout added
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V1.0/2007-01-29 inital version for linux-magazin.de
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=cut
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