166 lines
4.9 KiB
Perl
166 lines
4.9 KiB
Perl
#!/usr/bin/perl
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#
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# Veritas Cluster System monitor for Nagios.
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# Written by Aaron Bostick (abostick@mydoconline.com)
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# Last modified: 05-22-2002
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#
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# Usage: check_vcs {-g <vcs_group> | -r <vcs_resource> } -s <vcs_system> [-n]
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#
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# Description:
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#
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# This plugin is just a perl wrapper to the vcs commands hagrp and hares.
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# You specify what group/resource and system you want the status for, and
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# the plugin returns a status code based on the output of either hagrp or
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# hares.
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#
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# Normal hagrp/hares status codes are ONLINE and OFFLINE depending on where the
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# cluster service currently lives. I have added an option, -n, which makes
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# the expected state to be OFFLINE rather than ONLINE so you can run the
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# plugin on both sides of the cluster and will receive critical alerts when
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# the cluster fails over i.e. a proper failover will make the standby node
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# go from OFFLINE to ONLINE for the group, so an ONLINE status should alert
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# you! (You do want to know when the cluster fails over, right? :))
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#
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# Output:
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#
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# This plugin returns OK when hagrp/hares -state <grp> -sys <system> returns
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# ONLINE (or OFFLINE if -n is specified). Any other hagrp/hares string returns
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# CRITICAL... Would a WARNING ever be justified??? UNKNOWN is returned if
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# hagrp/hares cannot run for some reason.
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#
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# Examples:
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#
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# Make sure group oracle is ONLINE on server dbserver1:
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# check_vcs -g oracle -s dbserver1
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#
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# Make sure group oracle is OFFLINE on server dbserver2:
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# check_vcs -g oracle -s dbserver2 -n
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#
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# Make sure resource oraip is ONLINE on server dbserver1:
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# check_vcs -r oraip -s dbserver1
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#
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# Make sure resource oraip is OFFLINE on server dbserver2:
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# check_vcs -r oraip -s dbserver2 -n
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#
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BEGIN {
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if ($0 =~ s/^(.*?)[\/\\]([^\/\\]+)$//) {
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$prog_dir = $1;
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$prog_name = $2;
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}
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}
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require 5.004;
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use lib $main::prog_dir;
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use utils qw($TIMEOUT %ERRORS &print_revision &support);
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use Getopt::Long;
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sub print_usage ();
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sub print_version ();
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sub print_help ();
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# Initialize strings
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$vcs_bin = '/opt/VRTSvcs/bin';
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$vcs_command = '';
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$vcs_arg = '';
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$vcs_group = '';
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$vcs_resource = '';
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$vcs_system = '';
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$vcs_negate = '';
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$vcs_result = '';
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$vcs_expected_result = 'ONLINE';
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$plugin_revision = '$Revision: 33 $ ';
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# Grab options from command line
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GetOptions
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("g|group:s" => \$vcs_group,
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"r|resouce:s" => \$vcs_resource,
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"s|system=s" => \$vcs_system,
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"n|negate" => \$vcs_negate,
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"v|version" => \$version,
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"h|help" => \$help);
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(!$version) || print_version ();
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(!$help) || print_help ();
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(!$vcs_negate) || ($vcs_expected_result = 'OFFLINE');
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# Make sure group and resource is not specified
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!($vcs_group && $vcs_resource) || usage("Please specify either a group or a resource, but not both.\n");
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# Make sure group or resource is specified
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($vcs_group || $vcs_resource) || usage("HA group or resource not specified.\n");
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# Make sure system is specified
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($vcs_system) || usage("HA system not specified.\n");
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# Specify proper command
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if ($vcs_group) {
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$vcs_command = 'hagrp';
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$vcs_arg = $vcs_group;
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} else {
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$vcs_command = 'hares';
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$vcs_arg = $vcs_resource;
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}
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# Run command and save output
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$vcs_result = `$vcs_bin/$vcs_command -state $vcs_arg -sys $vcs_system`;
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chomp ($vcs_result);
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# If empty result, return UNKNOWN
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if (!$vcs_result) {
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print "UNKNOWN: Problem running $vcs_command...\n";
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exit $ERRORS{'UNKNOWN'};
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}
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# If result is expected, return OK
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# If result is not expected, return CRITICAL
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if ($vcs_result eq $vcs_expected_result) {
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print "OK: $vcs_command $vcs_arg is $vcs_result\n";
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exit $ERRORS{'OK'};
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} else {
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print "CRITICAL: $vcs_command $vcs_arg is $vcs_result\n";
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exit $ERRORS{'CRITICAL'};
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}
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#
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# Subroutines
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#
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sub usage () {
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print @_;
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print_usage();
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exit $ERRORS{'OK'};
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}
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sub print_usage () {
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print "\nUsage: $prog_name { -g <vcs_group> | -r <vcs_resource> } -s <vcs_system> [-n]\n";
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print "Usage: $prog_name [ -v | --version ]\n";
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print "Usage: $prog_name [ -h | --help ]\n";
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}
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sub print_version () {
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print_revision($prog_name, $plugin_revision);
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exit $ERRORS{'OK'};
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}
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sub print_help () {
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print_revision($prog_name, $plugin_revision);
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print "\n";
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print "Validate output from hagrp/hares command.\n";
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print "\n";
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print_usage();
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print "\n";
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print "-g, --group=<vcs_group>\n";
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print " The HA group to be validated\n";
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print "-r, --resource=<vcs_resource>\n";
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print " The HA resource to be validated\n";
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print "-s, --system=<vcs_system>\n";
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print " The HA system where the group/resource lives\n";
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print "-n, --negate=<negate>\n";
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print " Set expected result to OFFLINE instead of ONLINE\n";
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print "\n";
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support();
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exit $ERRORS{'OK'};
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}
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