centreon-plugins/cloud/kubernetes/mode/discoverynodes.pm

117 lines
3.3 KiB
Perl

#
# Copyright 2021 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::kubernetes::mode::discoverynodes;
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 => {
"prettify" => { name => 'prettify' },
});
return $self;
}
sub check_options {
my ($self, %options) = @_;
$self->SUPER::init(%options);
}
sub run {
my ($self, %options) = @_;
my @disco_data;
my $disco_stats;
$disco_stats->{start_time} = time();
my $nodes = $options{custom}->kubernetes_list_nodes();
foreach my $node (@{$nodes}) {
my %node;
$node{name} = $node->{metadata}->{name};
$node{uid} = $node->{metadata}->{uid};
$node{os_image} = $node->{status}->{nodeInfo}->{osImage};
$node{kubelet_version} = $node->{status}->{nodeInfo}->{kubeletVersion};
if (defined($node->{metadata}->{labels}->{'node-role.kubernetes.io/control-plane'})) {
$node{node_role} = "control-plane";
} elsif (defined($node->{metadata}->{labels}->{'node-role.kubernetes.io/master'})) {
$node{node_role} = "master";
} else {
$node{node_role} = "worker";
}
foreach my $address (@{$node->{status}->{addresses}}) {
$node{internal_ip} = $address->{address} if ($address->{type} eq "InternalIP");
$node{external_ip} = $address->{address} if ($address->{type} eq "ExternalIP");
$node{hostname} = $address->{address} if ($address->{type} eq "Hostname");
}
push @disco_data, \%node;
}
$disco_stats->{end_time} = time();
$disco_stats->{duration} = $disco_stats->{end_time} - $disco_stats->{start_time};
$disco_stats->{discovered_items} = @disco_data;
$disco_stats->{results} = \@disco_data;
my $encoded_data;
eval {
if (defined($self->{option_results}->{prettify})) {
$encoded_data = JSON::XS->new->utf8->pretty->encode($disco_stats);
} else {
$encoded_data = JSON::XS->new->utf8->encode($disco_stats);
}
};
if ($@) {
$encoded_data = '{"code":"encode_error","message":"Cannot encode discovered data into JSON format"}';
}
$self->{output}->output_add(short_msg => $encoded_data);
$self->{output}->display(nolabel => 1, force_ignore_perfdata => 1);
$self->{output}->exit();
}
1;
__END__
=head1 MODE
Nodes discovery.
=over 8
=item B<--prettify>
Prettify JSON output.
=back
=cut