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add blockio mode
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Shini31
parent
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305
centreon-plugins/apps/docker/mode/blockio.pm
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305
centreon-plugins/apps/docker/mode/blockio.pm
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###############################################################################
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# Copyright 2005-2015 CENTREON
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# Centreon is developped by : Julien Mathis and Romain Le Merlus under
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# GPL Licence 2.0.
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation ; either version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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# PARTICULAR PURPOSE. See the 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 along with
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# this program; if not, see <http://www.gnu.org/licenses>.
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#
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# Linking this program statically or dynamically with other modules is making a
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# combined work based on this program. Thus, the terms and conditions of the GNU
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# General Public License cover the whole combination.
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#
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# As a special exception, the copyright holders of this program give CENTREON
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# permission to link this program with independent modules to produce an timeelapsedutable,
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# regardless of the license terms of these independent modules, and to copy and
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# distribute the resulting timeelapsedutable under terms of CENTREON choice, provided that
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# CENTREON also meet, for each linked independent module, the terms and conditions
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# of the license of that module. An independent module is a module which is not
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# derived from this program. If you modify this program, you may extend this
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# exception to your version of the program, but you are not obliged to do so. If you
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# do not wish to do so, delete this exception statement from your version.
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#
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# For more information : contact@centreon.com
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# Authors : Mathieu Cinquin <mcinquin@centreon.com>
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#
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####################################################################################
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package apps::docker::mode::blockio;
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use base qw(centreon::plugins::mode);
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use strict;
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use warnings;
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use centreon::plugins::httplib;
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use centreon::plugins::statefile;
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use JSON;
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sub new {
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my ($class, %options) = @_;
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my $self = $class->SUPER::new(package => __PACKAGE__, %options);
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bless $self, $class;
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$self->{version} = '1.0';
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$options{options}->add_options(arguments =>
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{
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"hostname:s" => { name => 'hostname' },
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"port:s" => { name => 'port', default => '2376'},
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"proto:s" => { name => 'proto', default => 'https' },
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"urlpath:s" => { name => 'url_path', default => '/' },
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"name:s" => { name => 'name' },
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"id:s" => { name => 'id' },
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"warning-read:s" => { name => 'warning-read' },
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"critical-read:s" => { name => 'critical-read' },
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"warning-write:s" => { name => 'warning-write' },
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"critical-write:s" => { name => 'critical-write' },
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"credentials" => { name => 'credentials' },
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"username:s" => { name => 'username' },
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"password:s" => { name => 'password' },
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"ssl:s" => { name => 'ssl', },
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"cert-file:s" => { name => 'cert_file' },
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"key-file:s" => { name => 'key_file' },
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"cacert-file:s" => { name => 'cacert_file' },
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"timeout:s" => { name => 'timeout', default => '3' },
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});
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$self->{statefile_value} = centreon::plugins::statefile->new(%options);
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return $self;
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}
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sub check_options {
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my ($self, %options) = @_;
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$self->SUPER::init(%options);
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if (!defined($self->{option_results}->{hostname})) {
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$self->{output}->add_option_msg(short_msg => "Please set the hostname option");
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$self->{output}->option_exit();
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}
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if ((defined($self->{option_results}->{credentials})) && (!defined($self->{option_results}->{username}) || !defined($self->{option_results}->{password}))) {
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$self->{output}->add_option_msg(short_msg => "You need to set --username= and --password= options when --credentials is used");
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$self->{output}->option_exit();
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}
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if ((defined($self->{option_results}->{name})) && (defined($self->{option_results}->{id}))) {
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$self->{output}->add_option_msg(short_msg => "Please set the name or id option");
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$self->{output}->option_exit();
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}
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if ((!defined($self->{option_results}->{name})) && (!defined($self->{option_results}->{id}))) {
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$self->{output}->add_option_msg(short_msg => "Please set the name or id option");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'warning-read', value => $self->{option_results}->{warning_read})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong warning 'read' threshold '" . $self->{option_results}->{warning_read} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'critical-read', value => $self->{option_results}->{critical_read})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong critical 'read' threshold '" . $self->{option_results}->{critical_read} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'warning-write', value => $self->{option_results}->{warning_write})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong warning 'write' threshold '" . $self->{option_results}->{warning_write} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'critical-write', value => $self->{option_results}->{critical_write})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong critical 'write' threshold '" . $self->{option_results}->{critical_write} . "'.");
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$self->{output}->option_exit();
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}
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$self->{statefile_value}->check_options(%options);
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}
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sub run {
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my ($self, %options) = @_;
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my $new_datas = {};
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if (defined($self->{option_results}->{id})) {
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$self->{statefile_value}->read(statefile => 'docker_' . $self->{option_results}->{id} . '_' . centreon::plugins::httplib::get_port($self) . '_' . $self->{mode});
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} elsif (defined($self->{option_results}->{name})) {
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$self->{statefile_value}->read(statefile => 'docker_' . $self->{option_results}->{name} . '_' . centreon::plugins::httplib::get_port($self) . '_' . $self->{mode});
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}
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my $jsoncontent;
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my $query_form_get = { stream => 'false' };
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if (defined($self->{option_results}->{id})) {
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$self->{option_results}->{url_path} = "/containers/".$self->{option_results}->{id}."/stats";
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$jsoncontent = centreon::plugins::httplib::connect($self, query_form_get => $query_form_get, connection_exit => 'critical');
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} elsif (defined($self->{option_results}->{name})) {
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$self->{option_results}->{url_path} = "/containers/".$self->{option_results}->{name}."/stats";
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$jsoncontent = centreon::plugins::httplib::connect($self, query_form_get => $query_form_get, connection_exit => 'critical');
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}
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my $json = JSON->new;
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my $webcontent;
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eval {
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$webcontent = $json->decode($jsoncontent);
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};
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if ($@) {
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$self->{output}->add_option_msg(short_msg => "Cannot decode json response");
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$self->{output}->option_exit();
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}
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my $read_bytes = $webcontent->{blkio_stats}->{io_service_bytes_recursive}->[0]->{value};
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my $write_bytes = $webcontent->{blkio_stats}->{io_service_bytes_recursive}->[1]->{value};
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$new_datas->{read_bytes} = $read_bytes;
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$new_datas->{write_bytes} = $write_bytes;
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$new_datas->{last_timestamp} = time();
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my $old_timestamp = $self->{statefile_value}->get(name => 'last_timestamp');
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if (!defined($old_timestamp)) {
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$self->{output}->output_add(severity => 'OK',
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short_msg => "Buffer creation...");
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$self->{statefile_value}->write(data => $new_datas);
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$self->{output}->display();
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$self->{output}->exit();
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}
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my $time_delta = $new_datas->{last_timestamp} - $old_timestamp;
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if ($time_delta <= 0) {
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# At least one second. two fast calls ;)
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$time_delta = 1;
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}
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my $old_read_bytes = $self->{statefile_value}->get(name => 'read_bytes');
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my $old_write_bytes = $self->{statefile_value}->get(name => 'write_bytes');
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if ($new_datas->{read_bytes} < $old_read_bytes) {
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# We set 0. Has reboot.
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$old_read_bytes = 0;
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}
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if ($new_datas->{write_bytes} < $old_write_bytes) {
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# We set 0. Has reboot.
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$old_write_bytes = 0;
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}
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my $delta_read_bits = ($read_bytes - $old_read_bytes) * 8;
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my $delta_write_bits = ($write_bytes - $old_write_bytes) * 8;
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my $read_absolute_per_sec = $delta_read_bits / $time_delta;
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my $write_absolute_per_sec = $delta_write_bits / $time_delta;
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my $exit1 = $self->{perfdata}->threshold_check(value => $read_absolute_per_sec, threshold => [ { label => 'critical-read', 'exit_litteral' => 'critical' }, { label => 'warning-read', exit_litteral => 'warning' } ]);
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my $exit2 = $self->{perfdata}->threshold_check(value => $write_absolute_per_sec, threshold => [ { label => 'critical-write', 'exit_litteral' => 'critical' }, { label => 'warning-write', exit_litteral => 'warning' } ]);
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my ($read_value, $read_unit) = $self->{perfdata}->change_bytes(value => $read_absolute_per_sec, network => 1);
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my ($write_value, $write_unit) = $self->{perfdata}->change_bytes(value => $write_absolute_per_sec, network => 1);
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my $exit = $self->{output}->get_most_critical(status => [ $exit1, $exit2 ]);
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$self->{output}->output_add(severity => $exit,
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short_msg => sprintf("Read I/O : %s/s, Write I/O : %s/s",
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$read_value . $read_unit,
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$write_value . $write_unit));
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$self->{output}->perfdata_add(label => 'read_io', unit => 'b/s',
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value => sprintf("%.2f", $read_absolute_per_sec),
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warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-read'),
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critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-read'),
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min => 0);
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$self->{output}->perfdata_add(label => 'write_io', unit => 'b/s',
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value => sprintf("%.2f", $write_absolute_per_sec),
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warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-write'),
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critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-write'),
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min => 0);
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$self->{statefile_value}->write(data => $new_datas);
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$self->{output}->display();
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$self->{output}->exit();
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}
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1;
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__END__
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=head1 MODE
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Check Container's Block I/O usage
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=over 8
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=item B<--hostname>
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IP Addr/FQDN of Docker's API
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=item B<--port>
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Port used by Docker's API (Default: '2576')
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=item B<--proto>
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Specify https if needed (Default: 'https')
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=item B<--urlpath>
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Set path to get Docker's container information (Default: '/')
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=item B<--id>
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Specify one container's id
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=item B<--name>
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Specify one container's name
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=item B<--warning-read>
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Threshold warning in b/s for Read I/O.
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=item B<--critical-read>
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Threshold critical in b/s for Read I/O.
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=item B<--warning-write>
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Threshold warning in b/s for Write I/O.
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=item B<--critical-write>
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Threshold critical in b/s for Write I/O.
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=item B<--credentials>
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Specify this option if you access webpage over basic authentification
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=item B<--username>
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Specify username
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=item B<--password>
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Specify password
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=item B<--ssl>
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Specify SSL version (example : 'sslv3', 'tlsv1'...)
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=item B<--cert-file>
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Specify certificate to send to the webserver
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=item B<--key-file>
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Specify key to send to the webserver
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=item B<--cacert-file>
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Specify root certificate to send to the webserver
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=item B<--timeout>
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Threshold for HTTP timeout (Default: 3)
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=back
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=cut
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