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#!/usr/bin/perl -w |
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# |
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# Copyright (c) 2010 Stéphane Urbanovski <stephane.urbanovski@ac-nancy-metz.fr> |
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# |
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# This program is free software; you can redistribute it and/or |
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# modify it under the terms of the GNU General Public License |
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# as published by the Free Software Foundation; either version 2 |
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# of the License, or (at your option) any later version. |
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# |
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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 |
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# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# you should have received a copy of the GNU General Public License |
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# along with this program (or with Nagios); if not, write to the |
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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# Boston, MA 02111-1307, USA |
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# |
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# $Id: $ |
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use strict; # should never be differently :-) |
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use warnings; |
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use Locale::gettext; |
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use File::Basename; # get basename() |
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use POSIX qw(setlocale); |
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use Time::HiRes qw(time); # get microtime |
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use POSIX qw(mktime); |
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use Nagios::Plugin ; |
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use LWP::UserAgent; # http client |
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use HTTP::Request; # used by LWP::UserAgent |
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use HTTP::Status; # to get http err msg |
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use Data::Dumper; |
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my $PROGNAME = basename($0); |
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'$Revision: 1.0 $' =~ /^.*(\d+\.\d+) \$$/; # Use The Revision from RCS/CVS/SVN |
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my $VERSION = $1; |
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my $DEBUG = 0; |
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my $TIMEOUT = 9; |
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# i18n : |
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setlocale(LC_MESSAGES, ''); |
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textdomain('nagios-plugins-perl'); |
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my $np = Nagios::Plugin->new( |
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version => $VERSION, |
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blurb => _gt('Plugin to check HAProxy stats url'), |
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usage => "Usage: %s [ -v|--verbose ] -u <url> [-t <timeout>] [-U <username>] [-P <password>] [ -c|--critical=<threshold> ] [ -w|--warning=<threshold> ]", |
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timeout => $TIMEOUT+1 |
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); |
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$np->add_arg ( |
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spec => 'debug|d', |
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help => _gt('Debug level'), |
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default => 0, |
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); |
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$np->add_arg ( |
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spec => 'username|U=s', |
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help => _gt('Username for HTTP Auth'), |
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required => 0, |
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); |
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$np->add_arg ( |
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spec => 'password|P=s', |
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help => _gt('Password for HTTP Auth'), |
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required => 0, |
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); |
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$np->add_arg ( |
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spec => 'w=f', |
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help => _gt('Warning request time threshold (in seconds)'), |
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default => 2, |
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label => 'FLOAT' |
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); |
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$np->add_arg ( |
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spec => 'c=f', |
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help => _gt('Critical request time threshold (in seconds)'), |
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default => 10, |
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label => 'FLOAT' |
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); |
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$np->add_arg ( |
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spec => 'url|u=s', |
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help => _gt('URL of the HAProxy csv statistics page.'), |
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required => 1, |
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); |
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$np->getopts; |
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$DEBUG = $np->opts->get('debug'); |
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my $verbose = $np->opts->get('verbose'); |
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my $username = $np->opts->get('username'); |
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my $password = $np->opts->get('password'); |
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# Thresholds : |
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# time |
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my $warn_t = $np->opts->get('w'); |
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my $crit_t = $np->opts->get('c'); |
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my $url = $np->opts->get('url'); |
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# Create a LWP user agent object: |
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my $ua = new LWP::UserAgent( |
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'env_proxy' => 0, |
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'timeout' => $TIMEOUT, |
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); |
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$ua->agent(basename($0)); |
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# Workaround for LWP bug : |
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$ua->parse_head(0); |
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if ( defined($ENV{'http_proxy'}) ) { |
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# Normal http proxy : |
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$ua->proxy(['http'], $ENV{'http_proxy'}); |
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# Https must use Crypt::SSLeay https proxy (to use CONNECT method instead of GET) |
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$ENV{'HTTPS_PROXY'} = $ENV{'http_proxy'}; |
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} |
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# Build and submit an http request : |
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my $request = HTTP::Request->new('GET', $url); |
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# Authenticate if username and password are supplied |
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if ( defined($username) && defined($password) ) { |
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$request->authorization_basic($username, $password); |
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} |
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my $timer = time(); |
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my $http_response = $ua->request( $request ); |
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$timer = time()-$timer; |
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my $status = $np->check_threshold( |
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'check' => $timer, |
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'warning' => $warn_t, |
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'critical' => $crit_t, |
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); |
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$np->add_perfdata( |
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'label' => 't', |
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'value' => sprintf('%.6f',$timer), |
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'min' => 0, |
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'uom' => 's', |
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'threshold' => $np->threshold() |
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); |
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if ( $status > OK ) { |
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$np->add_message($status, sprintf(_gt("Response time degraded: %.6fs !"),$timer) ); |
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} |
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my $message = 'msg'; |
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if ( $http_response->is_error() ) { |
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my $err = $http_response->code." ".status_message($http_response->code)." (".$http_response->message.")"; |
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$np->add_message(CRITICAL, _gt("HTTP error: ").$err ); |
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} elsif ( ! $http_response->is_success() ) { |
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my $err = $http_response->code." ".status_message($http_response->code)." (".$http_response->message.")"; |
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$np->add_message(CRITICAL, _gt("Internal error: ").$err ); |
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} |
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($status, $message) = $np->check_messages(); |
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if ( $http_response->is_success() ) { |
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# Get xml content ... |
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my $stats = $http_response->content; |
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if ($DEBUG) { |
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print "------------------===http output===------------------\n$stats\n-----------------------------------------------------\n"; |
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print "t=".$timer."s\n"; |
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}; |
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my @fields = (); |
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my @rows = split(/\n/,$stats); |
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if ( $rows[0] =~ /#\ \w+/ ) { |
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$rows[0] =~ s/#\ //; |
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@fields = split(/\,/,$rows[0]); |
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} else { |
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$np->nagios_exit(UNKNOWN, _gt("Can't find csv header !") ); |
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} |
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my %stats = (); |
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for ( my $y = 1; $y < $#rows; $y++ ) { |
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my @values = split(/\,/,$rows[$y]); |
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if ( !defined($stats{$values[0]}) ) { |
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$stats{$values[0]} = {}; |
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} |
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if ( !defined($stats{$values[0]}{$values[1]}) ) { |
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$stats{$values[0]}{$values[1]} = {}; |
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} |
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for ( my $x = 2,; $x <= $#values; $x++ ) { |
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# $stats{pxname}{svname}{valuename} |
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$stats{$values[0]}{$values[1]}{$fields[$x]} = $values[$x]; |
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} |
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} |
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# print Dumper(\%stats); |
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my %stats2 = (); |
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my $okMsg = ''; |
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foreach my $pxname ( keys(%stats) ) { |
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$stats2{$pxname} = { |
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'act' => 0, |
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'acttot' => 0, |
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'bck' => 0, |
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'bcktot' => 0, |
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'scur' => 0, |
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'slim' => 0, |
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}; |
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foreach my $svname ( keys(%{$stats{$pxname}}) ) { |
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if ( $stats{$pxname}{$svname}{'type'} eq '2' ) { |
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my $svstatus = $stats{$pxname}{$svname}{'status'} eq 'UP'; |
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my $active = $stats{$pxname}{$svname}{'act'} eq '1'; |
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my $activeDescr = $active ? _gt("Active service") :_gt("Backup service") ; |
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if ( $stats{$pxname}{$svname}{'status'} eq 'UP' ) { |
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logD( sprintf(_gt("%s '%s' is up on '%s' proxy."),$activeDescr,$svname,$pxname) ); |
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} elsif ( $stats{$pxname}{$svname}{'status'} eq 'DOWN' ) { |
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$np->add_message(CRITICAL, sprintf(_gt("%s '%s' is DOWN on '%s' proxy !"),$activeDescr,$svname,$pxname) ); |
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} |
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if ( $stats{$pxname}{$svname}{'act'} eq '1' ) { |
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$stats2{$pxname}{'acttot'}++; |
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$stats2{$pxname}{'act'} += $svstatus; |
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} elsif ($stats{$pxname}{$svname}{'bck'} eq '1') { |
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$stats2{$pxname}{'bcktot'}++; |
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$stats2{$pxname}{'bck'} += $svstatus; |
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} |
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$stats2{$pxname}{'scur'} += $stats{$pxname}{$svname}{'scur'}; |
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logD( "Current sessions : ".$stats{$pxname}{$svname}{'scur'} ); |
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} elsif ( $stats{$pxname}{$svname}{'type'} eq '0' ) { |
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$stats2{$pxname}{'slim'} = $stats{$pxname}{$svname}{'slim'}; |
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} |
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} |
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if ( $stats2{$pxname}{'acttot'} > 0 ) { |
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$okMsg .= ' '.$pxname.' (Active: '.$stats2{$pxname}{'act'}.'/'.$stats2{$pxname}{'acttot'}; |
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if ( $stats2{$pxname}{'bcktot'} > 0 ) { |
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$okMsg .= ' , Backup: '.$stats2{$pxname}{'bck'}.'/'.$stats2{$pxname}{'bcktot'}; |
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} |
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$okMsg .= ')'; |
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$np->add_perfdata( |
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'label' => 'sess_'.$pxname, |
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'value' => $stats2{$pxname}{'scur'}, |
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'min' => 0, |
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'uom' => 'sessions', |
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'max' => $stats2{$pxname}{'slim'}, |
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); |
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} |
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} |
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# print Dumper(\%stats2); |
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($status, $message) = $np->check_messages('join' => ' '); |
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if ( $status == OK ) { |
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$message = $okMsg; |
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} |
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} |
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# if ( $verbose ) { |
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# ($status, $message) = $np->check_messages('join' => '<br/>','join_all' => '<br/>'); |
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# } else { |
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# ($status, $message) = $np->check_messages('join' => '<br/>'); |
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# } |
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$np->nagios_exit($status, $message ); |
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sub logD { |
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print STDERR 'DEBUG: '.$_[0]."\n" if ($DEBUG); |
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} |
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sub logW { |
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print STDERR 'WARNING: '.$_[0]."\n" if ($DEBUG); |
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} |
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# Gettext wrapper |
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sub _gt { |
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return gettext($_[0]); |
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} |
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__END__ |
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=head1 NAME |
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This Nagios plugins check the statistics url provided by HAProxy (http://haproxy.1wt.eu/). |
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=head1 NAGIOS CONGIGURATIONS |
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In F<checkcommands.cfg> you have to add : |
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define command { |
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command_name check_haproxy |
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command_line $USER1$/check_haproxy.pl -u $ARG1$ |
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} |
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In F<services.cfg> you just have to add something like : |
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define service { |
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host_name haproxy.exemple.org |
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normal_check_interval 10 |
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retry_check_interval 5 |
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contact_groups linux-admins |
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service_description HAProxy |
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check_command check_haproxy!http://haproxy.exemple.org/haproxy?stats;csv |
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} |
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=head1 AUTHOR |
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Stéphane Urbanovski <stephane.urbanovski@ac-nancy-metz.fr> |
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=cut |
Parent Directory
| 
Revision Log