centreon-plugins/cloud/prometheus/direct/kubernetes/mode/listcontainers.pm

160 lines
5.3 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 cloud::prometheus::direct::kubernetes::mode::listcontainers;
use base qw(centreon::plugins::mode);
use strict;
use warnings;
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options);
bless $self, $class;
$options{options}->add_options(arguments =>
{
"container:s" => { name => 'container', default => 'container=~".*"' },
"pod:s" => { name => 'pod', default => 'pod=~".*"' },
"namespace:s" => { name => 'namespace', default => 'namespace=~".*"' },
"image:s" => { name => 'image', default => 'image=~".*"' },
"extra-filter:s@" => { name => 'extra_filter' },
"metric-overload:s@" => { name => 'metric_overload' },
});
return $self;
}
sub check_options {
my ($self, %options) = @_;
$self->SUPER::init(%options);
$self->{metrics} = {
'info' => '^kube_pod_container_info$',
};
foreach my $metric (@{$self->{option_results}->{metric_overload}}) {
next if ($metric !~ /(.*),(.*)/);
$self->{metrics}->{$1} = $2 if (defined($self->{metrics}->{$1}));
}
$self->{labels} = {};
foreach my $label (('container', 'pod', 'namespace', 'image')) {
if ($self->{option_results}->{$label} !~ /^(\w+)[!~=]+\".*\"$/) {
$self->{output}->add_option_msg(short_msg => "Need to specify --" . $label . " option as a PromQL filter.");
$self->{output}->option_exit();
}
$self->{labels}->{$label} = $1;
}
$self->{extra_filter} = '';
foreach my $filter (@{$self->{option_results}->{extra_filter}}) {
$self->{extra_filter} .= ',' . $filter;
}
}
sub manage_selection {
my ($self, %options) = @_;
$self->{containers} = $options{custom}->query(queries => [ '{__name__=~"' . $self->{metrics}->{info} . '",' .
$self->{option_results}->{container} . ',' .
$self->{option_results}->{pod} . ',' .
$self->{option_results}->{namespace} .
$self->{extra_filter} . '}' ]);
}
sub run {
my ($self, %options) = @_;
$self->manage_selection(%options);
foreach my $container (@{$self->{containers}}) {
$self->{output}->output_add(long_msg => sprintf("[container = %s][pod = %s][namespace = %s][image = %s]",
$container->{metric}->{$self->{labels}->{container}}, $container->{metric}->{$self->{labels}->{pod}},
$container->{metric}->{$self->{labels}->{namespace}}, $container->{metric}->{$self->{labels}->{image}}));
}
$self->{output}->output_add(severity => 'OK',
short_msg => 'List containers:');
$self->{output}->display(nolabel => 1, force_ignore_perfdata => 1, force_long_output => 1);
$self->{output}->exit();
}
sub disco_format {
my ($self, %options) = @_;
$self->{output}->add_disco_format(elements => ['container', 'pod', 'namespace', 'image']);
}
sub disco_show {
my ($self, %options) = @_;
$self->manage_selection(%options);
foreach my $container (@{$self->{containers}}) {
$self->{output}->add_disco_entry(
container => $container->{metric}->{$self->{labels}->{container}},
pod => $container->{metric}->{$self->{labels}->{pod}},
namespace => $container->{metric}->{$self->{labels}->{namespace}},
image => $container->{metric}->{$self->{labels}->{image}},
);
}
}
1;
__END__
=head1 MODE
List containers.
=over 8
=item B<--container>
Filter on a specific container (Must be a PromQL filter, Default: 'container_name=~".*"')
=item B<--pod>
Filter on a specific pod (Must be a PromQL filter, Default: 'pod_name=~".*"')
=item B<--namespace>
Filter on a specific namespace (Must be a PromQL filter, Default: 'namespace=~".*"')
=item B<--image>
Filter on a specific image (Must be a PromQL filter, Default: 'image=~".*"')
=item B<--extra-filter>
Add a PromQL filter (Can be multiple)
Example : --extra-filter='name=~".*pretty.*"'
=item B<--metric-overload>
Overload default metrics name (Can be multiple, metric can be 'info')
Example : --metric-overload='metric,^my_metric_name$'
=back
=cut