centreon-plugins/cloud/cadvisor/restapi/mode/diskio.pm

215 lines
7.8 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::cadvisor::restapi::mode::diskio;
use base qw(centreon::plugins::templates::counter);
use strict;
use warnings;
use DateTime;
sub set_counters {
my ($self, %options) = @_;
$self->{maps_counters_type} = [
{ name => 'containers_diskio', type => 1, cb_prefix_output => 'prefix_containers_diskio_output', message_multiple => 'All container disk IOps are ok', skipped_code => { -11 => 1 } },
];
$self->{maps_counters}->{containers_diskio} = [
{ label => 'diskio-read', nlabel => 'disk.io.read.bytespersecond', set => {
key_values => [ { name => 'diskio_read' }, { name => 'display' } ],
output_change_bytes => 1,
output_template => 'Disk IO Read: %s %s/s',
perfdatas => [
{ label => 'diskio_read', template => '%.2f',
min => 0, unit => 'B/s', label_extra_instance => 1, instance_use => 'display' }
]
}
},
{ label => 'diskio-write', nlabel => 'disk.io.write.bytespersecond', set => {
key_values => [ { name => 'diskio_write' }, { name => 'display' } ],
output_change_bytes => 1,
output_template => 'Disk IO Write: %s %s/s',
perfdatas => [
{ label => 'diskio_write', template => '%.2f',
min => 0, unit => 'B/s', label_extra_instance => 1, instance_use => 'display' }
]
}
}
];
}
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options, force_new_perfdata => 1);
bless $self, $class;
$options{options}->add_options(arguments => {
'container-id:s' => { name => 'container_id' },
'container-name:s' => { name => 'container_name' },
'filter-name:s' => { name => 'filter_name' },
'use-name' => { name => 'use_name' }
});
return $self;
}
sub prefix_containers_diskio_output {
my ($self, %options) = @_;
return "Container '" . $options{instance_value}->{display} . "' ";
}
sub manage_selection {
my ($self, %options) = @_;
$self->{containers_diskio} = {};
my $result = $options{custom}->api_get_containers(
container_id => $self->{option_results}->{container_id},
container_name => $self->{option_results}->{container_name}
);
my $machine_stats = $options{custom}->api_get_machine_stats();
foreach my $container_id (keys %{$result}) {
next if (!defined($result->{$container_id}->{Stats}));
my $name = $result->{$container_id}->{Name};
if (defined($self->{option_results}->{filter_name}) && $self->{option_results}->{filter_name} ne '' &&
$name !~ /$self->{option_results}->{filter_name}/) {
$self->{output}->output_add(long_msg => "skipping '" . $name . "': no matching filter.", debug => 1);
next;
}
my $first_index = 0;
my $first_stat = $result->{$container_id}->{Stats}[$first_index];
my $first_ts = $first_stat->{timestamp};
my $first_dt = $self->parse_date(date => $first_ts);
my $last_index = scalar @{$result->{$container_id}->{Stats}} - 1;
my $last_stat = $result->{$container_id}->{Stats}[$last_index];
my $last_ts = $last_stat->{timestamp};
my $last_dt = $self->parse_date(date => $last_ts);
my $diff_ts = $last_dt - $first_dt;
my $read_io = {};
my $write_io = {};
if (keys $first_stat->{diskio}) {
$self->{containers}->{$container_id} = {
node_name => $result->{$container_id}->{NodeName},
display => defined($self->{option_results}->{use_name}) ? $name : $container_id,
name => $name,
};
# The API does not present the devices in the same order between the first and the last stats sample, so we can't just compare [0] with [0] and [1] with [1], we have to check the name of the device
foreach my $diskio_index (0..(scalar(@{$first_stat->{diskio}->{io_service_bytes}}) - 1)) {
my $name = defined($self->{option_results}->{use_name}) ? $name : $container_id;
my $device = $first_stat->{diskio}->{io_service_bytes}->[$diskio_index]->{device};
$name .= ':' . $device;
$read_io->{$name} = {first => $first_stat->{diskio}->{io_service_bytes}->[$diskio_index]->{stats}->{Read}};
$write_io->{$name} = {first => $first_stat->{diskio}->{io_service_bytes}->[$diskio_index]->{stats}->{Write}};
}
foreach my $diskio_index (0..(scalar(@{$last_stat->{diskio}->{io_service_bytes}}) - 1)) {
my $name = defined($self->{option_results}->{use_name}) ? $name : $container_id;
my $device = $last_stat->{diskio}->{io_service_bytes}->[$diskio_index]->{device};
$name .= ':' . $device;
$read_io->{$name}->{last} = $last_stat->{diskio}->{io_service_bytes}->[$diskio_index]->{stats}->{Read};
$write_io->{$name}->{last} = $last_stat->{diskio}->{io_service_bytes}->[$diskio_index]->{stats}->{Write};
}
foreach my $diskio_disk (keys %$read_io) {
$self->{containers_diskio}->{$diskio_disk} = {
display => $diskio_disk,
diskio_read => ($read_io->{$diskio_disk}->{last} - $read_io->{$diskio_disk}->{first}) / $diff_ts ,
diskio_write => ($write_io->{$diskio_disk}->{last} - $write_io->{$diskio_disk}->{first}) / $diff_ts,
};
}
}
}
if (scalar(keys %{$self->{containers}}) <= 0) {
$self->{output}->add_option_msg(short_msg => "No containers found or no data available for diskio metrics.");
$self->{output}->option_exit();
}
my $hostnames = $options{custom}->get_hostnames();
}
sub parse_date {
my ($self, %options) = @_;
if ($options{date} !~ /^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})\.(\d*)([^\d]+)$/) {
$self->{output}->add_option_msg(short_msg => "Wrong time found '" . $options{date} . "'.");
$self->{output}->option_exit();
}
my $dt = DateTime->new(
year => $1, month => $2, day => $3,
hour => $4, minute => $5, second => $6,
time_zone => $8
);
# return epoch time with nanoseconds
return $dt->epoch.".".$7;
}
1;
__END__
=head1 MODE
Check container disk io.
=over 8
=item B<--container-id>
Exact container ID.
=item B<--container-name>
Exact container name (if multiple names: names separated by ':').
=item B<--use-name>
Use name for perfdata and display.
=item B<--filter-name>
Filter by container name (can be a regexp).
=item B<--filter-counters>
Only display some counters (regexp can be used).
Example: --filter-counters='^diskio-read$'
=item B<--warning-*>
Threshold warning.
Can be: 'diskio-read', 'diskio-write'.
=item B<--critical-*>
Threshold critical.
Can be: 'diskio-read', 'diskio-write'.
=back
=cut