228 lines
7.3 KiB
Perl
228 lines
7.3 KiB
Perl
#
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# Copyright 2019 Centreon (http://www.centreon.com/)
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#
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# Centreon is a full-fledged industry-strength solution that meets
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# the needs in IT infrastructure and application monitoring for
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# service performance.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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package os::linux::local::mode::swap;
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use base qw(centreon::plugins::templates::counter);
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use strict;
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use warnings;
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use centreon::plugins::misc;
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sub custom_swap_output {
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my ($self, %options) = @_;
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my $output = sprintf(
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'Swap Total: %s %s Used: %s %s (%.2f%%) Free: %s %s (%.2f%%)',
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$self->{perfdata}->change_bytes(value => $self->{result_values}->{total_absolute}),
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$self->{perfdata}->change_bytes(value => $self->{result_values}->{used_absolute}),
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$self->{result_values}->{prct_used_absolute},
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$self->{perfdata}->change_bytes(value => $self->{result_values}->{free_absolute}),
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$self->{result_values}->{prct_free_absolute},
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);
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return $output;
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}
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sub set_counters {
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my ($self, %options) = @_;
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$self->{maps_counters_type} = [
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{ name => 'swap', type => 0, skipped_code => { -10 => 1 } },
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];
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$self->{maps_counters}->{swap} = [
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{ label => 'usage', nlabel => 'swap.usage.bytes', set => {
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key_values => [ { name => 'used' }, { name => 'free' }, { name => 'prct_used' }, { name => 'prct_free' }, { name => 'total' } ],
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closure_custom_output => $self->can('custom_swap_output'),
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perfdatas => [
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{ label => 'used', value => 'used_absolute', template => '%d', min => 0, max => 'total_absolute', unit => 'B', cast_int => 1 },
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],
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},
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},
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{ label => 'usage-free', display_ok => 0, nlabel => 'swap.free.bytes', set => {
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key_values => [ { name => 'free' }, { name => 'used' }, { name => 'prct_used' }, { name => 'prct_free' }, { name => 'total' } ],
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closure_custom_output => $self->can('custom_swap_output'),
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perfdatas => [
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{ label => 'free', value => 'free_absolute', template => '%d', min => 0, max => 'total_absolute',
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unit => 'B', cast_int => 1 },
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],
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},
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},
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{ label => 'usage-prct', display_ok => 0, nlabel => 'swap.usage.percentage', set => {
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key_values => [ { name => 'prct_used' } ],
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output_template => 'Swap used: %.2f %%',
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perfdatas => [
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{ label => 'used_prct', value => 'prct_used_absolute', template => '%.2f', min => 0, max => 100, unit => '%' },
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],
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},
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},
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];
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}
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sub new {
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my ($class, %options) = @_;
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my $self = $class->SUPER::new(package => __PACKAGE__, %options);
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bless $self, $class;
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$options{options}->add_options(arguments => {
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'hostname:s' => { name => 'hostname' },
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'remote' => { name => 'remote' },
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'ssh-option:s@' => { name => 'ssh_option' },
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'ssh-path:s' => { name => 'ssh_path' },
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'ssh-command:s' => { name => 'ssh_command', default => 'ssh' },
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'timeout:s' => { name => 'timeout', default => 30 },
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'sudo' => { name => 'sudo' },
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'command:s' => { name => 'command', default => 'cat' },
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'command-path:s' => { name => 'command_path' },
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'command-options:s' => { name => 'command_options', default => '/proc/meminfo 2>&1' },
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'no-swap:s' => { name => 'no_swap' },
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});
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$self->{no_swap} = 'critical';
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return $self;
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}
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sub check_options {
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my ($self, %options) = @_;
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$self->SUPER::check_options(%options);
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if (defined($self->{option_results}->{no_swap}) && $self->{option_results}->{no_swap} ne '') {
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if ($self->{output}->is_litteral_status(status => $self->{option_results}->{no_swap}) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong --no-swap status '" . $self->{option_results}->{no_swap} . "'.");
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$self->{output}->option_exit();
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}
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$self->{no_swap} = $self->{option_results}->{no_swap};
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}
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}
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sub manage_selection {
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my ($self, %options) = @_;
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my $stdout = centreon::plugins::misc::execute(
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output => $self->{output},
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options => $self->{option_results},
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sudo => $self->{option_results}->{sudo},
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command => $self->{option_results}->{command},
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command_path => $self->{option_results}->{command_path},
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command_options => $self->{option_results}->{command_options}
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);
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my ($total_size, $swap_free);
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foreach (split(/\n/, $stdout)) {
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if (/^SwapTotal:\s+(\d+)/i) {
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$total_size = $1 * 1024;
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} elsif (/^SwapFree:\s+(\d+)/i) {
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$swap_free = $1 * 1024;
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}
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}
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if (!defined($total_size) || !defined($swap_free)) {
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$self->{output}->add_option_msg(short_msg => "Some information missing.");
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$self->{output}->option_exit();
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}
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if ($total_size == 0) {
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$self->{output}->output_add(severity => $self->{no_swap},
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short_msg => 'No active swap.');
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$self->{output}->display();
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$self->{output}->exit();
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}
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my $swap_used = $total_size - $swap_free;
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my $prct_used = $swap_used * 100 / $total_size;
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my $prct_free = 100 - $prct_used;
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my ($total_value, $total_unit) = $self->{perfdata}->change_bytes(value => $total_size);
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my ($swap_used_value, $swap_used_unit) = $self->{perfdata}->change_bytes(value => $swap_used);
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my ($swap_free_value, $swap_free_unit) = $self->{perfdata}->change_bytes(value => ($total_size - $swap_used));
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$self->{swap} = {
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used => $swap_used,
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free => $swap_free,
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prct_used => $prct_used,
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prct_free => $prct_free,
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total => $total_size
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};
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}
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1;
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__END__
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=head1 MODE
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Check swap memory (need '/proc/meminfo' file).
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=over 8
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=item B<--no-swap>
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Threshold if no active swap (default: 'critical').
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=item B<--remote>
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Execute command remotely in 'ssh'.
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=item B<--hostname>
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Hostname to query (need --remote).
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=item B<--ssh-option>
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Specify multiple options like the user (example: --ssh-option='-l=centreon-engine' --ssh-option='-p=52').
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=item B<--ssh-path>
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Specify ssh command path (default: none)
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=item B<--ssh-command>
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Specify ssh command (default: 'ssh'). Useful to use 'plink'.
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=item B<--timeout>
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Timeout in seconds for the command (Default: 30).
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=item B<--sudo>
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Use 'sudo' to execute the command.
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=item B<--command>
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Command to get information (Default: 'cat').
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Can be changed if you have output in a file.
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=item B<--command-path>
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Command path (Default: none).
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=item B<--command-options>
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Command options (Default: '/proc/meminfo 2>&1').
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=item B<--warning-*> B<--critical-*>
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Threshold, can be 'usage' (in Bytes), 'usage-free' (in Bytes), 'usage-prct' (%).
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=back
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=cut
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