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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::nodeexporter::linux::mode::storage;
use base qw(centreon::plugins::templates::counter);
use strict;
use warnings;
use centreon::common::monitoring::openmetrics::scrape;
sub custom_usage_perfdata {
my ($self, %options) = @_;
my $value_perf = $self->{result_values}->{used};
my %total_options = ();
if ($self->{instance_mode}->{option_results}->{units} eq '%') {
$total_options{total} = $self->{result_values}->{node_filesystem_size_bytes};
$total_options{cast_int} = 1;
}
$self->{output}->perfdata_add(
label => 'used', unit => 'B',
nlabel => 'node.storage.space.free.bytes',
value => $value_perf,
warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-' . $self->{thlabel}, %total_options),
critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-' . $self->{thlabel}, %total_options),
min => 0, max => $self->{result_values}->{node_filesystem_size_bytes},
instances => $self->{result_values}->{display}
);
}
sub custom_usage_threshold {
my ($self, %options) = @_;
my ($exit, $threshold_value);
$threshold_value = $self->{result_values}->{used};
if ($self->{instance_mode}->{option_results}->{units} eq '%') {
$threshold_value = $self->{result_values}->{prct_used};
$threshold_value = $self->{result_values}->{prct_free} if (defined($self->{instance_mode}->{option_results}->{free}));
}
$exit = $self->{perfdata}->threshold_check(
value => $threshold_value,
threshold => [
{ label => 'critical-' . $self->{thlabel}, exit_litteral => 'critical' },
{ label => 'warning-'. $self->{thlabel}, exit_litteral => 'warning' }
]
);
return $exit;
}
sub custom_usage_output {
my ($self, %options) = @_;
my ($total_size_value, $total_size_unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{node_filesystem_size_bytes});
my ($total_used_value, $total_used_unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{used});
my ($total_free_value, $total_free_unit) = $self->{perfdata}->change_bytes(value => $self->{result_values}->{node_filesystem_free_bytes});
return sprintf(
"Usage Total: %s Used: %s (%.2f%%) Free: %s (%.2f%%)",
$total_size_value . " " . $total_size_unit,
$total_used_value . " " . $total_used_unit, $self->{result_values}->{prct_used},
$total_free_value . " " . $total_free_unit, $self->{result_values}->{prct_free}
);
}
sub custom_usage_calc {
my ($self, %options) = @_;
$self->{result_values}->{display} = $options{new_datas}->{$self->{instance} . '_display'};
$self->{result_values}->{node_filesystem_size_bytes} = $options{new_datas}->{$self->{instance} . '_node_filesystem_size_bytes'};
$self->{result_values}->{node_filesystem_free_bytes} = $options{new_datas}->{$self->{instance} . '_node_filesystem_free_bytes'};
$self->{result_values}->{used} = $self->{result_values}->{node_filesystem_size_bytes} - $self->{result_values}->{node_filesystem_free_bytes};
$self->{result_values}->{prct_used} = ($self->{result_values}->{node_filesystem_size_bytes} > 0) ? $self->{result_values}->{used} * 100 / $self->{result_values}->{node_filesystem_size_bytes} : 0;
$self->{result_values}->{prct_free} = 100 - $self->{result_values}->{prct_used};
# limit to 100. Better output.
if ($self->{result_values}->{prct_used} > 100) {
$self->{result_values}->{node_filesystem_free_bytes} = 0;
$self->{result_values}->{prct_used} = 100;
$self->{result_values}->{prct_free} = 0;
}
return 0;
}
sub set_counters {
my ($self, %options) = @_;
$self->{maps_counters_type} = [
{ name => 'node_storage', type => 1, message_multiple => 'All storages are ok', display_long => 1, cb_prefix_output => 'prefix_storage_output', }
];
$self->{maps_counters}->{node_storage} = [
{ label => 'usage', set => {
key_values => [ { name => 'node_filesystem_free_bytes' }, { name => 'node_filesystem_size_bytes' }, { name => 'display' } ],
closure_custom_calc => $self->can('custom_usage_calc'),
closure_custom_output => $self->can('custom_usage_output'),
closure_custom_perfdata => $self->can('custom_usage_perfdata'),
closure_custom_threshold_check => $self->can('custom_usage_threshold'),
}
}
];
}
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options, force_new_perfdata => 1);
bless $self, $class;
$options{options}->add_options(arguments => {
'fstype:s' => { name => 'fstype' },
"storage:s" => { name => 'storage' },
"units:s" => { name => 'units', default => '%' }
});
return $self;
}
sub prefix_storage_output {
my ($self, %options) = @_;
return "Storage '" . $options{instance_value}->{display} . "' ";
}
sub check_options {
my ($self, %options) = @_;
$self->SUPER::check_options(%options);
}
sub manage_selection {
my ($self, %options) = @_;
my $raw_metrics = centreon::common::monitoring::openmetrics::scrape::parse(%options, strip_chars => "[\"']");
foreach my $metric (keys %{$raw_metrics}) {
next if ($metric !~ /node_filesystem_free_bytes|node_filesystem_size_bytes/i );
foreach my $data (@{$raw_metrics->{$metric}->{data}}) {
next if ((defined($self->{option_results}->{fstype}) && $data->{dimensions}->{fstype} !~ /$self->{option_results}->{fstype}/i ) || (defined($self->{option_results}->{storage}) && $data->{dimensions}->{mountpoint} !~ /$self->{option_results}->{storage}/i));
foreach my $mountpoint ($data->{dimensions}->{mountpoint}) {
$self->{node_storage}->{$mountpoint}->{$metric} = $data->{value};
$self->{node_storage}->{$mountpoint}->{display} = $mountpoint;
}
}
}
if (scalar(keys %{$self->{node_storage}}) <= 0) {
$self->{output}->add_option_msg(short_msg => "No partition found.");
$self->{output}->option_exit();
}
}
1;
__END__
=head1 MODE
Check storage based on node exporter metrics.
=over 8
=item B<--fstype>
Inclusion filter on fstype.
Can be used to exclude fstypes. Example : --fstype='^(?!(tmpfs))'
=item B<--storage>
Specify which disk to monitor. Can be a regex.
Default: all disks are monitored.
=item B<--units>
Units of thresholds. Can be : '%', 'B'
Default: '%'
=item B<--warning-usage>
Threshold warning.
=item B<--critical-usage>
Threshold critical.
=back
=cut
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