130 lines
3.9 KiB
Perl
Executable File
130 lines
3.9 KiB
Perl
Executable File
#!/usr/bin/perl
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#
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# check_corosync_rings
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#
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# Copyright © 2011 Phil Garner, Sysnix Consultants Limited
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# 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
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Authors: Phil Garner - phil@sysnix.com & Peter Mottram peter@sysnix.com
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#
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# v0.1 05/01/2011
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# v0.2 31/10/2011 - additional crit when closing the file handle and additional
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# comments added
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#
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# NOTE:- Requires Perl 5.8 or higher & either the Perl Module Nagios::Plugin
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# or Monitoring::Plugin, whichever is available for your system.
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# Nagios user will need sudo acces - suggest adding line below to
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# sudoers.
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# nagios ALL=(ALL) NOPASSWD: /usr/sbin/corosync-cfgtool -s
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#
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# In sudoers if requiretty is on (off state is default)
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# you will also need to add the line below
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# Defaults:nagios !requiretty
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#
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use warnings;
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use strict;
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my $plugin_provider='';
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my $rc = eval {
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require Monitoring::Plugin;
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Monitoring::Plugin->import();
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1;
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};
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if ($rc)
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{
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$plugin_provider = 'Monitoring';
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} else{
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require Nagios::Plugin;
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Nagios::Plugin->import();
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$plugin_provider = 'Nagios';
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}
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# Lines below may need changing if corosync-cfgtool or sudo installed in a
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# diffrent location.
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my $sudo = '/usr/bin/sudo';
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my $cfgtool = '/usr/sbin/corosync-cfgtool -s';
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# Now set up the plugin
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my $np;
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if ($plugin_provider eq 'Monitoring') {
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$np = Monitoring::Plugin->new(
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shortname => 'check_cororings',
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version => '0.2',
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usage => "Usage: %s <ARGS>\n\t\t--help for help\n",
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license => "License - GPL v3 see code for more details",
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url => "http://www.sysnix.com",
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blurb =>
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"\tMonitoring plugin that checks the status of corosync rings, requires Perl \t5.8+ and CPAN modules Monitoring::Plugin.",
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);
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} else {
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$np = Nagios::Plugin->new(
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shortname => 'check_cororings',
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version => '0.2',
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usage => "Usage: %s <ARGS>\n\t\t--help for help\n",
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license => "License - GPL v3 see code for more details",
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url => "http://www.sysnix.com",
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blurb =>
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"\tNagios plugin that checks the status of corosync rings, requires Perl \t5.8+ and CPAN modules Nagios::Plugin.",
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);
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}
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#Args
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$np->add_arg(
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spec => 'rings|r=s',
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help =>
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'How many rings should be running (optinal) sends Crit if incorrect number of rings found.',
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required => 0,
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);
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$np->getopts;
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my $found = 0;
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my $fh;
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my $rings = $np->opts->rings;
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# Run cfgtools spin through output and get info needed
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open( $fh, "$sudo $cfgtool |" )
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or $np->nagios_exit("CRITICAL", "Running corosync-cfgtool failed" );
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foreach my $line (<$fh>) {
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if ( $line =~ m/status\s*=\s*(\S.+)/ ) {
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my $status = $1;
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if ( $status =~ m/^ring (\d+) active with no faults/ ) {
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$np->add_message("OK", "ring $1 OK" );
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}
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else {
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$np->add_message("CRITICAL", $status );
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}
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$found++;
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}
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}
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close($fh) or $np->nagios_exit("CRITICAL", "Running corosync-cfgtool failed" );
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# Check we found some rings and apply -r arg if needed
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if ( $found == 0 ) {
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$np->nagios_exit("CRITICAL", "No Rings Found" );
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}
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elsif ( defined $rings && $rings != $found ) {
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$np->nagios_exit("CRITICAL", "Expected $rings rings but found $found" );
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}
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$np->nagios_exit( $np->check_messages() );
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