centreon-plugins/cloud/prometheus/exporters/nodeexporter/mode/load.pm

#
# Copyright 2018 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 cloud::prometheus::exporters::nodeexporter::mode::load;

use base qw(centreon::plugins::templates::counter);

use strict;
use warnings;

sub set_counters {
    my ($self, %options) = @_;

    $self->{maps_counters_type} = [
        { name => 'nodes', type => 1, cb_prefix_output => 'prefix_nodes_output', message_multiple => 'All nodes load are ok' },
    ];

    $self->{maps_counters}->{nodes} = [
        { label => 'load1', set => {
                key_values => [ { name => 'node_load1' }, { name => 'display' } ],
                output_template => 'Load 1 minute: %.2f',
                output_change_bytes => 1,
                perfdatas => [
                    { label => 'load1', value => 'node_load1_absolute', template => '%.2f',
                      min => 0, label_extra_instance => 1, instance_use => 'display_absolute' },
                ],
            }
        },
        { label => 'load5', set => {
                key_values => [ { name => 'node_load5' }, { name => 'display' } ],
                output_template => 'Load 5 minutes: %.2f',
                output_change_bytes => 1,
                perfdatas => [
                    { label => 'load5', value => 'node_load5_absolute', template => '%.2f',
                      min => 0, label_extra_instance => 1, instance_use => 'display_absolute' },
                ],
            }
        },
        { label => 'load15', set => {
                key_values => [ { name => 'node_load15' }, { name => 'display' } ],
                output_template => 'Load 15 minutes: %.2f',
                output_change_bytes => 1,
                perfdatas => [
                    { label => 'load15', value => 'node_load15_absolute', template => '%.2f',
                      min => 0, label_extra_instance => 1, instance_use => 'display_absolute' },
                ],
            }
        },
    ];
}

sub prefix_nodes_output {
    my ($self, %options) = @_;

    return "Node '" . $options{instance_value}->{display} . "' ";
}

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 =>
                                {
                                  "node:s"                  => { name => 'node', default => '.*' },
                                  "extra-filter:s@"         => { name => 'extra_filter' },
                                });
   
    return $self;
}

sub manage_selection {
    my ($self, %options) = @_;

    $self->{nodes} = {};
    $self->{cpu} = {};

    my $extra_filter = '';
    foreach my $filter (@{$self->{option_results}->{extra_filter}}) {
        $extra_filter .= ',' . $filter;
    }

    my $results = $options{custom}->query_range(queries => [ 'node_load1{instance=~"' . $self->{option_results}->{node} .
                                                            '"' . $extra_filter . '}',
                                                            'node_load5{instance=~"' . $self->{option_results}->{node} .
                                                            '"' . $extra_filter . '}',
                                                            'node_load15{instance=~"' . $self->{option_results}->{node} .
                                                            '"' . $extra_filter . '}' ]);
    
    foreach my $metric (@{$results}) {
        my $average = $options{custom}->compute(aggregation => 'average', values => $metric->{values});
        $self->{nodes}->{$metric->{metric}->{instance}}->{display} = $metric->{metric}->{instance};
        $self->{nodes}->{$metric->{metric}->{instance}}->{$metric->{metric}->{__name__}} = $average;
    }
    
    if (scalar(keys %{$self->{nodes}}) <= 0) {
        $self->{output}->add_option_msg(short_msg => "No nodes found.");
        $self->{output}->option_exit();
    }
}

1;

__END__

=head1 MODE

Check nodes load.

=over 8

=item B<--node>

Filter on a specific node (Must be a regexp)

=item B<--extra-filter>

Set a PromQL filter (Can be multiple, Example : 'name=~".*pretty.*"')

=item B<--warning-*>

Threshold warning.
Can be: 'load1', 'load5', 'load15'.

=item B<--critical-*>

Threshold critical.
Can be: 'load1', 'load5', 'load15'.

=back

=cut