RT::Extension::Nagios - Merge and resolve Nagios tickets
Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.
This extension allows email alerts generated by Nagios to be aggregated and resolved as it generates them. It does this by examining the standard subject line that Nagios generates; by default, these take the form:
PROBLEM Service Alert: localhost/Root Partition is WARNING
There are 5 useful parts in subject; we call them
problem_severity. These are parsed from the subject via a regular expression; in the above example, the extension would extract:
type: PROBLEM category: Service host: localhost problem_type: Root Partition problem_severity: WARNING
After the new ticket is created, the following is done:
Find all the other active tickets in the same queue with the same values of
problem_type. If the configuration setting
NagiosSearchAllQueuesis set (see below), all queues are searched.
If the configuration setting
NagiosMergeTicketsis set (see below), merge all matching tickets.
typeis 'RECOVERY', resolve them.
May need root permissions
Only run this the first time you install this module.
If you run this twice, you may end up with duplicate data in your database.
If you are upgrading this module, check for upgrading instructions in case changes need to be made to your database.
- Edit your /opt/rt4/etc/RT_SiteConfig.pm
If you are using RT 4.2 or greater, add this line:
For RT 4.0, add this line:
RT::Extension::Nagiosto your existing
- Restart your webserver
This extension has three configuration settings; setting them should be done in
If set, this causes step 1, above, to search for matching Nagios tickets in an queue. In most configurations, Nagios notifications will arrive in one queue, and remain there. If your workflow involves triaging Nagios notifications from there into other queues, you will want to set:
Set( $NagiosSearchAllQueues, 1 );
Controls if the extensions merges tickets about the same incident together. By default, each
RECOVERYnotification will remain as its own ticket; when the
RECOVERYemail is received by RT, all will be resolved.
Setting this configuration parameter to
1causes the extension to merge all old tickets on the same topic into new tickets as they arrive; as such, the
Createddate will respect the most recent message.
Setting it to
-1causes the extension to merge new tickets into any existing tickets as they arrive; the
Createddate will respect the oldest message, and the ticket ID will remain constant:
Set( $NagiosMergeTickets, -1 );
Since RT allows for custom lifecycles on queues, this extension's default of setting tickets to
RECOVERYmay be incorrect for the queue they are in. If the queue your Nagios tickets reside in does not have a
Resolvedstatus, or you would like tickets to be transitioned to a different status on
Set( $NagiosResolvedStatus, 'recovered' );
Best Practical Solutions, LLC <firstname.lastname@example.org>
Based on work by Todd Chapman.
All bugs should be reported via email to
or via the web at
This software is Copyright (c) 2014 by Best Practical Solutions
This is free software, licensed under:
The GNU General Public License, Version 2, June 1991