add failover mode to check if some resources have migrated refs #5321
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################################################################################
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# Copyright 2005-2014 MERETHIS
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# Centreon is developped by : Julien Mathis and Romain Le Merlus under
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# GPL Licence 2.0.
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation ; either version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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# PARTICULAR PURPOSE. See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, see <http://www.gnu.org/licenses>.
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#
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# Linking this program statically or dynamically with other modules is making a
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# combined work based on this program. Thus, the terms and conditions of the GNU
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# General Public License cover the whole combination.
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#
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# As a special exception, the copyright holders of this program give MERETHIS
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# permission to link this program with independent modules to produce an executable,
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# regardless of the license terms of these independent modules, and to copy and
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# distribute the resulting executable under terms of MERETHIS choice, provided that
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# MERETHIS also meet, for each linked independent module, the terms and conditions
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# of the license of that module. An independent module is a module which is not
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# derived from this program. If you modify this program, you may extend this
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# exception to your version of the program, but you are not obliged to do so. If you
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# do not wish to do so, delete this exception statement from your version.
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#
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# For more information : contact@centreon.com
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# Authors : Quentin Garnier <qgarnier@merethis.com>
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#
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####################################################################################
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package apps::pacemaker::local::mode::failover;
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use base qw(centreon::plugins::mode);
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use strict;
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use warnings;
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use centreon::plugins::statefile;
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use Digest::MD5 qw(md5_hex);
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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, $class;
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$self->{version} = '1.0';
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$options{options}->add_options(arguments =>
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{
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"hostname:s" => { name => 'hostname' },
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"remote" => { name => 'remote' },
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"ssh-option:s@" => { name => 'ssh_option' },
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"ssh-path:s" => { name => 'ssh_path' },
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"ssh-command:s" => { name => 'ssh_command', default => 'ssh' },
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"timeout:s" => { name => 'timeout', default => 30 },
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"sudo" => { name => 'sudo' },
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"command:s" => { name => 'command', default => 'crm_mon' },
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"command-path:s" => { name => 'command_path', default => '/usr/sbin' },
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"command-options:s" => { name => 'command_options', default => '-1 -r -f 2>&1' },
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"warning" => { name => 'warning', },
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"resources:s" => { name => 'resources', },
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"sticky:i" => { name => 'sticky', default => 3600 },
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"show-cache" => { name => 'show_cache' },
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});
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$self->{statefile_value} = centreon::plugins::statefile->new(%options);
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$self->{threshold} = 'CRITICAL';
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$self->{resources_check} = {};
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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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$self->SUPER::init(%options);
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if (defined($self->{option_results}->{warning})) {
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$self->{threshold} = 'WARNING';
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}
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if (defined($self->{option_results}->{resources})) {
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foreach my $rsc_name (split(/,/, $self->{option_results}->{resources})) {
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if (defined($rsc_name) && $rsc_name ne '') {
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$self->{resources_check}->{$rsc_name} = 1;
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}
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}
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}
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$self->{statefile_value}->check_options(%options);
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}
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sub parse_output {
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my ($self, %options) = @_;
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$self->{statefile_value}->read(statefile => 'pacemaker_' . $self->{mode} . '_' . (defined($self->{hostname}) ? md5_hex($self->{hostname}) : 'local') . '_' .(defined($self->{option_results}->{resources}) ? md5_hex($self->{option_results}->{resources}) : md5_hex('all')));
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if (defined($self->{option_results}->{show_cache})) {
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$self->{output}->add_option_msg(long_msg => $self->{statefile_value}->get_string_content());
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$self->{output}->option_exit();
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}
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my $old_timestamp = $self->{statefile_value}->get(name => 'last_timestamp');
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my $sticky = $self->{statefile_value}->get(name => 'sticky');
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my $stopped_resources = 0;
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my $moved_resources = 0;
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my $new_datas = {};
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$new_datas->{last_timestamp} = time();
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if (defined($sticky) && ($new_datas->{last_timestamp} - $sticky < $self->{option_results}->{sticky})) {
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$self->{output}->output_add(severity => $self->{threshold},
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short_msg => $self->{statefile_value}->get(name => 'last_short_output'));
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$self->{output}->output_add(long_msg => $self->{statefile_value}->get(name => 'last_long_output'));
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$self->{output}->perfdata_add(label => "stopped_resources",
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value => $self->{statefile_value}->get(name => 'stopped_resources'),
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min => 0);
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$self->{output}->perfdata_add(label => "moved_resources",
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value => $self->{statefile_value}->get(name => 'moved_resources'),
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min => 0);
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$self->{output}->display();
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$self->{output}->exit();
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}
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my @standby;
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foreach my $line (split /\n/, $options{crm_out}) {
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if ($line =~ /\s*([0-9a-zA-Z_\-]+)\s+\(\S+\)\:\s+Started\s+([0-9a-zA-Z_\-]+)/) {
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# Check Resources pos
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$new_datas->{$1} = $2;
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$new_datas->{sticky} = $new_datas->{last_timestamp};
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my $old_owner = $self->{statefile_value}->get(name => $1);
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if ((defined($self->{resources_check}->{$1}))
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|| (!defined($self->{option_results}->{resources}))) {
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if(defined($old_owner) && ($old_owner ne $2)){
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$moved_resources++;
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$self->{output}->output_add(severity => $self->{threshold},
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short_msg => 'Resource ' . $1 . ' moved');
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$self->{output}->output_add(long_msg => 'Resource ' . $1 . ' moved from ' . $old_owner . ' to ' . $2);
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}
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}
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} elsif ($line =~ /\s*([0-9a-zA-Z_\-]+)\s+\(\S+\)\:\s+Stopped/) {
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$stopped_resources++;
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$self->{output}->output_add(severity => $self->{threshold},
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short_msg => 'Resource ' . $1 . ' stopped');
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} elsif ($line =~ m/\s*stopped\:\s*\[(.*)\]/i) {
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# Check Master/Slave stopped
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$stopped_resources++;
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$self->{output}->output_add(severity => $self->{threshold},
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short_msg => 'Resource ' . $1 . ' stopped');
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}
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}
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if ($self->{output}->is_status(value => $self->{output}->get_litteral_status(), compare => 'ok', litteral => 1)) {
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$new_datas->{sticky} = 0;
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if (defined($old_timestamp)) {
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$self->{output}->output_add(severity => 'OK',
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short_msg => "Cluster is OK");
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}
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}
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$self->{output}->perfdata_add(label => "stopped_resources",
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value => $stopped_resources,
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min => 0);
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$self->{output}->perfdata_add(label => "moved_resources",
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value => $moved_resources,
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min => 0);
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$new_datas->{last_short_output} = $self->{output}-> {global_short_concat_outputs}->{$self->{threshold}};
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if (scalar(@{$self->{output}->{global_long_output}})) {
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$new_datas->{last_long_output} = join("\n", @{$self->{output}->{global_long_output}});
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}
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$new_datas->{stopped_resources} = $stopped_resources;
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$new_datas->{moved_resources} = $moved_resources;
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$self->{statefile_value}->write(data => $new_datas);
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if (!defined($old_timestamp)) {
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$self->{output}->output_add(severity => 'OK',
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short_msg => "Buffer creation...");
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$self->{output}->display();
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$self->{output}->exit();
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}
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}
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sub run {
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my ($self, %options) = @_;
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my $stdout = centreon::plugins::misc::execute(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 => $self->{option_results}->{command_options});
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$self->parse_output(crm_out => $stdout);
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$self->{output}->display();
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$self->{output}->exit();
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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 if some resources have migrated by Cluster Resource Manager (need 'crm_mon' command).
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Should be executed on a cluster node.
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=over 8
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=item B<--warning>
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If failed Nodes, stopped Resources detected or Standby Nodes sends Warning instead of Critical (default)
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as long as there are no other errors and there is Quorum.
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=item B<--resources>
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Resources to query (format: <rsc_name>,<rsc_name>,...)
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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: 'crm_mon').
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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: '/usr/sbin').
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=item B<--command-options>
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Command options (Default: '-1 -r -f 2>&1').
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=item B<--show-cache>
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Display cache resource datas.
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=back
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=cut
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@ -47,7 +47,8 @@ sub new {
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$self->{version} = '0.1';
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%{$self->{modes}} = (
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'crm' => 'apps::pacemaker::local::mode::crm',
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'crm' => 'apps::pacemaker::local::mode::crm',
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'failover' => 'apps::pacemaker::local::mode::failover',
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);
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return $self;
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