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#
# Copyright 2022 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::monitoring::netdata::restapi::mode::inodes;
use base qw(centreon::plugins::templates::counter);
use strict;
use warnings;
sub set_counters {
my ($self, %options) = @_;
$self->{maps_counters_type} = [
{ name => 'inodes', type => 1, cb_prefix_output => 'prefix_inodes_output', message_multiple => 'All inode partitions are ok' }
];
$self->{maps_counters}->{inodes} = [
{ label => 'usage-prct', nlabel => 'storage.inodes.usage.percentage', set => {
key_values => [ { name => 'prct_used' }, { name => 'display' } ],
output_template => 'Used: %.2f %%',
perfdatas => [
{ template => '%d', unit => '%', min => 0, max => 100, label_extra_instance => 1, instance_use => 'display' },
]
}
}
];
}
sub prefix_inodes_output {
my ($self, %options) = @_;
return "Inodes partition '" . $options{instance_value}->{display} . "' ";
}
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options, force_new_perfdata => 1);
bless $self, $class;
$options{options}->add_options(arguments => {
'chart-period:s' => { name => 'chart_period', default => '300' },
'chart-statistics:s' => { name => 'chart_statistics', default => 'average' },
'fs-name:s' => { name => 'fs_name' },
'space-reservation' => { name => 'space_reservation'}
});
return $self;
}
sub manage_selection {
my ($self, %options) = @_;
my $full_list = $options{custom}->list_charts();
foreach my $chart (values %{$full_list->{charts}}) {
next if ($chart->{name} !~ 'disk_inodes._');
push @{$self->{fs_list}}, $chart->{name};
}
foreach my $fs (@{$self->{fs_list}}) {
my $result = $options{custom}->get_data(
chart => $fs,
dimensions => 'used,avail,reserved_for_root',
points => $self->{option_results}->{chart_point},
after_period => $self->{option_results}->{chart_period},
group => $self->{option_results}->{chart_statistics}
);
$fs =~ s/disk_inodes.//;
$fs =~ s/_/\//g;
next if (defined($self->{option_results}->{fs_name}) &&
$self->{option_results}->{fs_name} ne '' &&
$fs !~ /$self->{option_results}->{fs_name}/
);
foreach my $fs_value (@{$result->{data}}) {
foreach my $fs_label (@{$result->{labels}}) {
$self->{fs}->{$fs}->{$fs_label} = shift @{$fs_value};
}
}
my $reserved_space = defined($self->{option_results}->{space_reservation}) ? $self->{fs}->{$fs}->{"reserved for root"} : '0';
my $used = $self->{fs}->{$fs}->{used};
my $free = $self->{fs}->{$fs}->{avail};
my $total = $used + $free + $reserved_space;
my $prct_used = $used * 100 / $total;
my $prct_free = 100 - $prct_used;
$self->{inodes}->{$fs} = {
display => $fs,
used => $used,
total => $total,
free => $free,
prct_used => $prct_used,
prct_free => $prct_free
};
$self->{global}->{count}++;
}
if (scalar(keys %{$self->{inodes}}) <= 0) {
$self->{output}->add_option_msg(short_msg => 'Issue with disk path information (see details)');
$self->{output}->option_exit();
}
};
1;
__END__
=head1 MODE
Check disks FS inodes of *nix based servers using the Netdata agent RestAPI.
Example:
perl centreon_plugins.pl --plugin=apps::monitoring::netdata::restapi::plugin
--mode=inodes --hostname=10.0.0.1 --chart-period=300 --chart-statistics=average --warning-usage-prct=80 --critical-usage-prct=90 --verbose
More information on'https://learn.netdata.cloud/docs/agent/web/api'.
=over 8
=item B<--chart-period>
The period in seconds on which the values are calculated
Default: 300
=item B<--chart-statistic>
The statistic calculation method used to parse the collected data.
Can be : average, sum, min, max
Default: average
=item B<--fs-name>
Filter on one or more specific FS. Regexp can be used
Example: --fs-name='(^/$|^/boot$)'
=item B<--warning-usage-prct>
Warning threshold on FS used Inodes (in %).
=item B<--critical-usage-prct>
Critical threshold on FS used Inodes (in %).
=item B<--space-reservation>
On specific systems, partitions can have reserved space/inodes (like ext4 for root).
This option will consider this space in the calculation (like for the 'df' command).
=back
=cut
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