Feb 21 2012

op5 notify to Growl

Ok, this post is really of topic and in English, but I felt that I needed to communicate this.

This post if for all you that is running a op5 Monitor server.

Here is a quick how-to on how to notify from op5 monitor using Growl, the notification application not the metal-singing growling. That would have been awesome

Before we start I should mention that this is not a supported notification-plugin from op5 so do this at your own risk.

• First you need to install growl, you can find it at http://growl.info/
• Configure the Growl application to allow network connections and set a password

• After that we need to install a Perl-library called Net::Growl, install it with the following command:

#cpan Net::Growl

(You will need cpan installed for this, this you have to figure out on you own )

• Second we need to create a notification script, put this in /opt/monitor/op5/notify/growl.pl

#!/usr/bin/perl -w
#
# Created by Mathieu Gagné 2009
#

use strict;
use warnings;
use Net::Growl;
use Getopt::Long qw(:config no_ignore_case bundling);

# Default values
my $application = 'Nagios';
my $title = 'Alert';
my $message = '';
my $priority = 2;
my $sticky = 0;
my $destination = 'localhost';
my $password = '';

my $help = 0;

my $pod2usage = sub {
# Load Pod::Usage only if needed.
require "Pod/Usage.pm";
import Pod::Usage;

pod2usage(@_);
};

# Declare and retreive options
GetOptions(
'h|help' => \$help,
'a|application=s' => \$application,
't|title=s' => \$title,
'm|message=s' => \$message,
'P|priority=i' => \$priority,
's|sticky' => \$sticky,
'H|host=s' => \$destination,
'p|password=s' => \$password,
) or $pod2usage->(1);

# Print help
$pod2usage->(1) if $help;

# Validate options
if ( $application eq '' ) {
die "Error: Missing mandatory option: application\n";
}

if ( $title eq '' ) {
die "Error: Missing mandatory option: title\n";
}

if ( $message eq '' ) {
die "Error: Missing mandatory option: message\n";
}

if ( $priority eq '' ) {
die "Error: Missing mandatory option: priority\n";
}

if ( $password eq '' ) {
die "Error: Missing mandatory option: password\n";
}

#
# Main program
#

# Set up the Socket
my %addr = (
PeerAddr => $destination,
PeerPort => Net::Growl::GROWL_UDP_PORT,
Proto => 'udp',
);

my $s = IO::Socket::INET->new ( %addr ) || die "Could not create socket: $!\n";

# Register the application
my $p = Net::Growl::RegistrationPacket->new(
application => $application,
password => $password,
);

$p->addNotification();

print $s $p->payload();

# Send a notification
$p = Net::Growl::NotificationPacket->new(
application => $application,
title => $title,
description => $message,
priority => $priority,
sticky => $sticky,
password => $password,
);

print $s $p->payload();

close($s);

•  Make this executable with

#chmod 755 /opt/monitor/op5/notify/growl.pl

• Now we have to configure the command in op5 monitor
• Go to the configuration and select command.
• Create new command for the host notification

Command_name: notify-host-by-growl

Command_line: $USER3$/notify/growl.pl -H $ARG1$ -p $ARG2$ -a op5 -t Alert -m "$NOTIFICATIONTYPE$ Alert $HOSTNAME$[$HOSTADDRESS$] is $HOSTSTATE$" –s 1

• Create one more command for the service notification

Command_name: notify-service-by-growl

Command_line: $USER3$/notify/growl.pl -H $ARG1$ -p $ARG2$ -a op5 -t Alert -m "$NOTIFICATIONTYPE$ Alert $HOSTNAME$[$HOSTADDRESS$]/$SERVICEDESC$ is $SERVICESTATE$" –s 1

•  Now we just need to create a contact with the the growl notification script instead of the normal notification script. Go to configure and select contact.
• Create a new contact with a name of you choice. Change the host and service notification scripts to corresponding notification scripts.
• Change the notifications arguments to <DNSname-of-your-computer-with-growl>!<password>
• Now add this contact to a contact group, host or service to get notification through growl. An example of how this can look:

I would like to thank randerson on the original post on how to do this for nagios

Om Ola Sandström

Självutnämnd übernörd och chefsredaktör. Jobbat både som sysadmin och produktspeciallist. Älskar prylar och nörderi i alla dess former.

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By Ola Sandström • op5 • 0 • Tags: growl, monitor, nagios, notification, op5