From 71d67c044647c5a58f1cbda7bc47262406a06115 Mon Sep 17 00:00:00 2001 From: Quentin Garnier Date: Mon, 27 Jan 2014 17:30:51 +0100 Subject: [PATCH] + Add mode 'cpu' for 'linux' plugin --- centreon-plugins/os/linux/local/mode/cpu.pm | 225 ++++++++++++++++++++ centreon-plugins/os/linux/local/plugin.pm | 3 +- 2 files changed, 227 insertions(+), 1 deletion(-) create mode 100644 centreon-plugins/os/linux/local/mode/cpu.pm diff --git a/centreon-plugins/os/linux/local/mode/cpu.pm b/centreon-plugins/os/linux/local/mode/cpu.pm new file mode 100644 index 000000000..5cb904697 --- /dev/null +++ b/centreon-plugins/os/linux/local/mode/cpu.pm @@ -0,0 +1,225 @@ +################################################################################ +# Copyright 2005-2013 MERETHIS +# Centreon is developped by : Julien Mathis and Romain Le Merlus under +# GPL Licence 2.0. +# +# 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 2 of the License. +# +# 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 . +# +# Linking this program statically or dynamically with other modules is making a +# combined work based on this program. Thus, the terms and conditions of the GNU +# General Public License cover the whole combination. +# +# As a special exception, the copyright holders of this program give MERETHIS +# permission to link this program with independent modules to produce an executable, +# regardless of the license terms of these independent modules, and to copy and +# distribute the resulting executable under terms of MERETHIS choice, provided that +# MERETHIS also meet, for each linked independent module, the terms and conditions +# of the license of that module. An independent module is a module which is not +# derived from this program. If you modify this program, you may extend this +# exception to your version of the program, but you are not obliged to do so. If you +# do not wish to do so, delete this exception statement from your version. +# +# For more information : contact@centreon.com +# Authors : Quentin Garnier +# +#################################################################################### + +package os::linux::local::mode::cpu; + +use base qw(centreon::plugins::mode); + +use strict; +use warnings; +use centreon::plugins::misc; +use centreon::plugins::statefile; + +sub new { + my ($class, %options) = @_; + my $self = $class->SUPER::new(package => __PACKAGE__, %options); + bless $self, $class; + + $self->{version} = '1.0'; + $options{options}->add_options(arguments => + { + "hostname:s" => { name => 'hostname' }, + "remote" => { name => 'remote' }, + "ssh-option:s@" => { name => 'ssh_option' }, + "ssh-path:s" => { name => 'ssh_path' }, + "ssh-command:s" => { name => 'ssh_command', default => 'ssh' }, + "timeout:s" => { name => 'timeout', default => 30 }, + "sudo" => { name => 'sudo' }, + "command:s" => { name => 'command', default => 'cat' }, + "command-path:s" => { name => 'command_path' }, + "command-options:s" => { name => 'command_options', default => '/proc/stat 2>&1' }, + "warning:s" => { name => 'warning', }, + "critical:s" => { name => 'critical', }, + }); + $self->{statefile_cache} = centreon::plugins::statefile->new(%options); + $self->{hostname} = undef; + return $self; +} + +sub check_options { + my ($self, %options) = @_; + $self->SUPER::init(%options); + + if (($self->{perfdata}->threshold_validate(label => 'warning', value => $self->{option_results}->{warning})) == 0) { + $self->{output}->add_option_msg(short_msg => "Wrong warning threshold '" . $self->{warning} . "'."); + $self->{output}->option_exit(); + } + if (($self->{perfdata}->threshold_validate(label => 'critical', value => $self->{option_results}->{critical})) == 0) { + $self->{output}->add_option_msg(short_msg => "Wrong critical threshold '" . $self->{critical} . "'."); + $self->{output}->option_exit(); + } + + $self->{statefile_cache}->check_options(%options); + $self->{hostname} = $self->{option_results}->{hostname}; + if (!defined($self->{hostname})) { + $self->{hostname} = 'me'; + } +} + +sub run { + my ($self, %options) = @_; + + my $stdout = centreon::plugins::misc::execute(output => $self->{output}, + options => $self->{option_results}, + sudo => $self->{option_results}->{sudo}, + command => $self->{option_results}->{command}, + command_path => $self->{option_results}->{command_path}, + command_options => $self->{option_results}->{command_options}); + $self->{statefile_cache}->read(statefile => 'cache_linux_local_' . $self->{hostname} . '_' . $self->{mode}); + my $old_timestamp = $self->{statefile_cache}->get(name => 'last_timestamp'); + my $datas = {}; + $datas->{last_timestamp} = time(); + + $self->{output}->output_add(severity => 'OK', + short_msg => "CPUs usages are ok."); + foreach (split(/\n/, $stdout)) { + next if (!/cpu(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)/); + my $cpu_number = $1; + $datas->{'cpu_idle_' . $cpu_number} = $5; + $datas->{'cpu_system_' . $cpu_number} = $4; + $datas->{'cpu_user_' . $cpu_number} = $1; + $datas->{'cpu_iowait_' . $cpu_number} = $6; + + if (!defined($old_timestamp)) { + next; + } + my $old_cpu_idle = $self->{statefile_cache}->get(name => 'cpu_idle_' . $cpu_number); + my $old_cpu_system = $self->{statefile_cache}->get(name => 'cpu_system_' . $cpu_number); + my $old_cpu_user = $self->{statefile_cache}->get(name => 'cpu_user_' . $cpu_number); + my $old_cpu_iowait = $self->{statefile_cache}->get(name => 'cpu_iowait_' . $cpu_number); + if (!defined($old_cpu_system) || !defined($old_cpu_idle) || !defined($old_cpu_user) || !defined($old_cpu_iowait)) { + next; + } + + if ($datas->{'cpu_idle_' . $cpu_number} < $old_cpu_idle) { + # We set 0. Has reboot. + $old_cpu_user = 0; + $old_cpu_idle = 0; + $old_cpu_system = 0; + $old_cpu_iowait = 0; + } + + my $total_elapsed = ($datas->{'cpu_idle_' . $cpu_number} + $datas->{'cpu_user_' . $cpu_number} + $datas->{'cpu_system_' . $cpu_number} + $datas->{'cpu_iowait_' . $cpu_number}) - ($old_cpu_user + $old_cpu_idle + $old_cpu_system + $old_cpu_iowait); + my $idle_elapsed = $datas->{'cpu_idle_' . $cpu_number} - $old_cpu_idle; + my $cpu_ratio_usetime = 100 * $idle_elapsed / $total_elapsed; + $cpu_ratio_usetime = 100 - $cpu_ratio_usetime; + + my $exit_code = $self->{perfdata}->threshold_check(value => $cpu_ratio_usetime, + threshold => [ { label => 'critical', 'exit_litteral' => 'critical' }, { label => 'warning', exit_litteral => 'warning' } ]); + + $self->{output}->output_add(long_msg => sprintf("CPU %d %.2f%%", $cpu_number, $cpu_ratio_usetime)); + if ($exit_code ne 'OK') { + $self->{output}->output_add(severity => $exit_code, + short_msg => sprintf("CPU %d %.2f%%", $cpu_number, $cpu_ratio_usetime)); + } + $self->{output}->perfdata_add(label => 'cpu_' . $cpu_number, unit => '%', + value => sprintf("%.2f", $cpu_ratio_usetime), + warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning'), + critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical'), + min => 0, max => 100); + } + + $self->{statefile_cache}->write(data => $datas); + if (!defined($old_timestamp)) { + $self->{output}->output_add(severity => 'OK', + short_msg => "Buffer creation..."); + } + + $self->{output}->display(); + $self->{output}->exit(); +} + +1; + +__END__ + +=head1 MODE + +Check system CPUs (need '/proc/stat' file). + +=over 8 + +=item B<--warning> + +Threshold warning in percent. + +=item B<--critical> + +Threshold critical in percent. + +=item B<--remote> + +Execute command remotely in 'ssh'. + +=item B<--hostname> + +Hostname to query (need --remote). + +=item B<--ssh-option> + +Specify multiple options like the user (example: --ssh-option='-l=centreon-engine" --ssh-option='-p=52"). + +=item B<--ssh-path> + +Specify ssh command path (default: none) + +=item B<--ssh-command> + +Specify ssh command (default: 'ssh'). Useful to use 'plink'. + +=item B<--timeout> + +Timeout in seconds for the command (Default: 30). + +=item B<--sudo> + +Use 'sudo' to execute the command. + +=item B<--command> + +Command to get information (Default: 'cat'). +Can be changed if you have output in a file. + +=item B<--command-path> + +Command path (Default: none). + +=item B<--command-options> + +Command options (Default: '/proc/stat 2>&1'). + +=back + +=cut diff --git a/centreon-plugins/os/linux/local/plugin.pm b/centreon-plugins/os/linux/local/plugin.pm index c73374ae1..dea75cbcf 100644 --- a/centreon-plugins/os/linux/local/plugin.pm +++ b/centreon-plugins/os/linux/local/plugin.pm @@ -47,7 +47,8 @@ sub new { $self->{version} = '0.1'; %{$self->{modes}} = ( - 'cmd-return' => 'os::linux::local::mode::cmdreturn', + 'cpu' => 'os::linux::local::mode::cpu', + 'cmd-return' => 'os::linux::local::mode::cmdreturn', ); return $self;