Part1: Does anyone monitor NTP service on their VMware hosts? If so can you share how you do it?
Part 2: I found some Nagios scripts but I am not sure how i can get them to work inside SW. If anyone can tell me how to make these work with SW that would be as great if not greater then answering part 1.
Powershell
Perl
Perl Code:
#!/usr/bin/perl
#
# check_vmware_ntp.pl - based on vi-check-host-time.pl written by Andrew Sullivan
#
# Copyright (C) 2016 Alexandre Rigaud <arigaud.prosodie.cap@free.fr>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# Report bugs to: nagiosplug-help@lists.sourceforge.net
#
# Examples:
# Check all hosts connected to a vCenter server
# ./check_vmware_ntp.pl --server your.vi.server --warning 3 --critical 1
#
# Check a specific host
# ./check_vmware_ntp.pl --server some.esxi.host
# CRITICAL: some.esxi.host. is -369 seconds off!, 5 Configured NTP servers, service ntpd running|drift=-369s peers=5;1;3;1;3
#use strict;
use warnings;use FindBin;
use lib "$FindBin::Bin/../";
use VMware::VIRuntime;
use Time::Local;
use lib "/usr/local/nagios/libexec";
use utils qw ($TIMEOUT %ERRORS &print_revision &support);my %STATES = (
0 => "OK",
1 => "WARNING",
2 => "CRITICAL",
3 => "UNKNOWN",
);my %opts = (
warning => {
default => 1,
type => "=i",
variable => "warning",
help => "number of seconds that is tolerable for drift is alarmed as warning (default:1).",
required => 0,
},
critical => {
default => 3,
type => "=i",
variable => "critical",
help => "number of seconds that is tolerable for drift is alarmed as critical (default:3).",
required => 0,
},
'H' => {
type => '=s',
variable => 'VI_SERVER',
help => 'VI server to connect to. Required if url is not present',
required => 0,
},
peer_warning => {
default => 3,
type => "=i",
variable => "peer_warning",
help => "Set the warning threshold for number of peers (default:3).",
required => 0,
},
peer_critical => {
default => 1,
type => "=i",
variable => "peer_critical",
help => "Set the warning threshold for number of peers (default:1).",
required => 0,
},
);my $list;
my $msg;
my $drift;
my $ret;Opts::add_options(%opts);
Opts::parse();
if( !Opts::option_is_set('server') )
{
my $hostname = Opts::get_option('H');
if( defined($hostname) && $hostname ne '' )
{
Opts::set_option('server', $hostname);
}
}
Opts::validate();
Util::connect();my $warn = Opts::get_option('warning');
my $crit = Opts::get_option('critical');
my $peer_warn = Opts::get_option('peer_warning');
my $peer_crit = Opts::get_option('peer_critical');$TIMEOUT = 3;
# Just in case of problems, let's not hang Nagios
$SIG{'ALRM'} = sub {
print "UNKNOWN - Plugin Timed out\n";
exit $ERRORS{"UNKNOWN"};
};
alarm($TIMEOUT);# get only hosts that are connected to vCenter, get only the name and dateTimeSystem MOR
my $hosts = Vim::find_entity_views(
view_type => 'HostSystem',
filter => {
'summary.runtime.connectionState' => "connected"
}#,
# properties => [ 'summary.config.name', 'configManager.dateTimeSystem' ]
);foreach my $host (@$hosts)
{
# get the date of the system and all the parts so we can convert to epoch time
my $dts = Vim::get_view( mo_ref => $host->get_property('configManager.dateTimeSystem') );
my $hosttime = $dts->QueryDateTime();
my ($year, $month, $day, $hour, $minutes, $seconds) = $hosttime =~ /(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}).*/; # do the convertion to epoch time
my $hostepoch = timegm($seconds, $minutes, $hour, $day, $month - 1, $year - 1900); # get the epoch time for the local system
my $localtime = time(); # count ntp servers configured
my $ntp_srv_count = list($dts); # check for drift, output something
$drift = $hostepoch - $localtime;
if ( abs($drift) > $crit) {
$msg .= $host->get_property('summary.config.name') . " is " . ($drift) . " seconds off!";
$ret = 2;
} elsif ( abs($drift) > $warn) {
$msg .= $host->get_property('summary.config.name') . " is " . ($drift) . " seconds off!";
$ret = 1;
} else {
$msg .= $host->get_property('summary.config.name') . " is within allowable drift (" . ($drift) . "s)";
$ret = 0;
} if ( $ntp_srv_count > $peer_warn )
{
$msg .= ", $ntp_srv_count Configured NTP servers";
} elsif ($ntp_srv_count <= $peer_crit) {
$msg .= ", only $ntp_srv_count Configured NTP servers!";
$ret = 2;
} elsif($ntp_srv_count <= $peer_warn) {
$msg .= ", only $ntp_srv_count Configured NTP servers!";
$ret = 1 if ($ret < 2);
} else {
$msg .= ", No NTP servers configured!";
$ret = 2;
} # get ntpd status
my $serviceSystem = Vim::get_view(mo_ref => $host->get_property('configManager.serviceSystem') );
my $services = $serviceSystem->serviceInfo->service;
foreach(@$services) {
if($_->key eq 'ntpd')
{
if($_->running)
{
$msg .= ", service ntpd running";
$ret = 0 if (!defined $ret);
} else
{
$msg .= ", service ntpd not running";
$ret = 2;
}
}
} $msg .= "|drift=" . $drift . "s peers=$ntp_srv_count;$warn;$crit;$peer_crit;$peer_warn\n";
print "$STATES{$ret}: $msg";
}
Util::disconnect();
exit $ret;## subssub get_servers {
my ($dts) = @_;
my $ntp_config = $dts->{dateTimeInfo}->{ntpConfig};
if (defined($ntp_config)) {
return $ntp_config->{server};
}
return undef;
}sub list {
my ($dts) = @_;
my $servers = get_servers($dts);
my $ntp_srv_count=0;
if (defined($servers) && scalar(@$servers)) {
foreach my $server (@$servers) {
$ntp_srv_count++;
}
}
return $ntp_srv_count;
}
