centreon-plugins/apps/nginx/serverstatus/mode/requests.pm

217 lines
7.8 KiB
Perl

#
# Copyright 2020 Centreon (http://www.centreon.com/)
#
# Centreon is a full-fledged industry-strength solution that meets
# the needs in IT infrastructure and application monitoring for
# service performance.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
package apps::nginx::serverstatus::mode::requests;
use base qw(centreon::plugins::mode);
use strict;
use warnings;
use centreon::plugins::http;
use centreon::plugins::statefile;
my $maps = [
{ counter => 'accepts', output => 'Connections accepted per seconds %.2f', match => 'server accepts handled requests.*?(\d+)' },
{ counter => 'handled', output => 'Connections handled per serconds %.2f', match => 'server accepts handled requests.*?\d+\s+(\d+)' },
{ counter => 'requests', output => 'Requests per seconds %.2f', match => 'server accepts handled requests.*?\d+\s+\d+\s+(\d+)' },
];
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options);
bless $self, $class;
$options{options}->add_options(arguments => {
"hostname:s" => { name => 'hostname' },
"port:s" => { name => 'port', },
"proto:s" => { name => 'proto' },
"urlpath:s" => { name => 'url_path', default => "/nginx_status" },
"credentials" => { name => 'credentials' },
"basic" => { name => 'basic' },
"username:s" => { name => 'username' },
"password:s" => { name => 'password' },
"timeout:s" => { name => 'timeout' },
});
foreach (@{$maps}) {
$options{options}->add_options(arguments => {
'warning-' . $_->{counter} . ':s' => { name => 'warning_' . $_->{counter} },
'critical-' . $_->{counter} . ':s' => { name => 'critical_' . $_->{counter} },
});
}
$self->{statefile_value} = centreon::plugins::statefile->new(%options);
$self->{http} = centreon::plugins::http->new(%options);
return $self;
}
sub check_options {
my ($self, %options) = @_;
$self->SUPER::init(%options);
foreach (@{$maps}) {
if (($self->{perfdata}->threshold_validate(label => 'warning-' . $_->{counter}, value => $self->{option_results}->{'warning_' . $_->{counter}})) == 0) {
$self->{output}->add_option_msg(short_msg => "Wrong warning-" . $_->{counter} . " threshold '" . $self->{option_results}->{'warning_' . $_->{counter}} . "'.");
$self->{output}->option_exit();
}
if (($self->{perfdata}->threshold_validate(label => 'critical-' . $_->{counter}, value => $self->{option_results}->{'critical_' . $_->{counter}})) == 0) {
$self->{output}->add_option_msg(short_msg => "Wrong critical-" . $_->{counter} . " threshold '" . $self->{option_results}->{'critical_' . $_->{counter}} . "'.");
$self->{output}->option_exit();
}
}
$self->{statefile_value}->check_options(%options);
$self->{http}->set_options(%{$self->{option_results}});
}
sub run {
my ($self, %options) = @_;
my $webcontent = $self->{http}->request();
my ($buffer_creation, $exit) = (0, 0);
my $new_datas = {};
my $old_datas = {};
$self->{statefile_value}->read(statefile => 'nginx_' . $self->{option_results}->{hostname} . '_' . $self->{http}->get_port() . '_' . $self->{mode});
$old_datas->{timestamp} = $self->{statefile_value}->get(name => 'timestamp');
$new_datas->{timestamp} = time();
foreach (@{$maps}) {
if ($webcontent !~ /$_->{match}/msi) {
$self->{output}->output_add(severity => 'UNKNOWN',
short_msg => "Cannot find " . $_->{counter} . " information.");
next;
}
$new_datas->{$_->{counter}} = $1;
my $tmp_value = $self->{statefile_value}->get(name => $_->{counter});
if (!defined($tmp_value)) {
$buffer_creation = 1;
next;
}
if ($new_datas->{$_->{counter}} < $tmp_value) {
$buffer_creation = 1;
next;
}
$exit = 1;
$old_datas->{$_->{counter}} = $tmp_value;
}
$self->{statefile_value}->write(data => $new_datas);
if ($buffer_creation == 1) {
$self->{output}->output_add(severity => 'OK',
short_msg => "Buffer creation...");
if ($exit == 0) {
$self->{output}->display();
$self->{output}->exit();
}
}
foreach (@{$maps}) {
# In buffer creation.
next if (!defined($old_datas->{$_->{counter}}));
if ($new_datas->{$_->{counter}} - $old_datas->{$_->{counter}} == 0) {
$self->{output}->output_add(severity => 'OK',
short_msg => "Counter '" . $_->{counter} . "' not moved. Have to wait.");
next;
}
my $delta_time = $new_datas->{timestamp} - $old_datas->{timestamp};
$delta_time = 1 if ($delta_time <= 0);
my $value = ($new_datas->{$_->{counter}} - $old_datas->{$_->{counter}}) / $delta_time;
my $exit = $self->{perfdata}->threshold_check(value => $value, threshold => [ { label => 'critical-' . $_->{counter}, 'exit_litteral' => 'critical' }, { label => 'warning-' . $_->{counter}, 'exit_litteral' => 'warning' }]);
$self->{output}->output_add(severity => $exit,
short_msg => sprintf($_->{output}, $value));
$self->{output}->perfdata_add(label => $_->{counter},
value => sprintf('%.2f', $value),
warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $_->{counter}),
critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $_->{counter}),
min => 0);
}
$self->{output}->display();
$self->{output}->exit();
}
1;
__END__
=head1 MODE
Check Nginx Request statistics: number of accepted connections per seconds, number of handled connections per seconds, number of requests per seconds.
=over 8
=item B<--hostname>
IP Addr/FQDN of the webserver host
=item B<--port>
Port used by Apache
=item B<--proto>
Specify https if needed
=item B<--urlpath>
Set path to get server-status page in auto mode (Default: '/nginx_status')
=item B<--credentials>
Specify this option if you access server-status page with authentication
=item B<--username>
Specify username for authentication (Mandatory if --credentials is specified)
=item B<--password>
Specify password for authentication (Mandatory if --credentials is specified)
=item B<--basic>
Specify this option if you access server-status page over basic authentication and don't want a '401 UNAUTHORIZED' error to be logged on your webserver.
Specify this option if you access server-status page over hidden basic authentication or you'll get a '404 NOT FOUND' error.
(Use with --credentials)
=item B<--timeout>
Threshold for HTTP timeout
=item B<--warning-*>
Warning Threshold. Can be: 'accepts', 'handled', 'requests'.
=item B<--critical-*>
Critical Threshold. Can be: 'accepts', 'handled', 'requests'.
=back
=cut