acknowledge triggers a script

[Jonathan Angliss]

On 05/10/11 14:20, dave stern - e-mail.pluribus.unum wrote:
> We have an interesting need. When a particular service goes red on our
> Nagios 3.2.1 server, we'd like to be able to click on "Acknowledge this
> service problem" and have that activate a local script. Anyone have any
> idea how this can be accomplished?

I'd do something similar to what Ryan Davis suggested.  He was right on 
the money with looking at the NOTIFICATIONTYPE macro.  Create a custom 
script that accepts whatever arguments you need to handle whatever it is 
you want to do.  Check the macros list [1] and see what you have 
available at notification time. I'm just going to pass in the ack 
author, type, host, and service (if it's a service notification).  This 
is mostly pseudo-bash, but gives you an idea...

===8<---------
#!/bin/sh
HOST=$1
AUTHOR=$2
TYPE=$3
SVC=$4

case $TYPE in
   ACK*)
     echo "$HOST;$AUTHOR;$SVC" > /tmp/ack_log.txt
     ;;
esac

# If we want to handle other conditions in the same script, add to
# the case statement

====8<--------


Then we need to define commands:

define command {
     command_name    host_notify_ack_handle
     command_line    $USER1$/notify_ack_handle $HOSTNAME$ \
			$HOSTACKAUTHOR$ $NOTIFICATIONTYPE$
}

define command {
     command_name    svc_notify_ack_handle
     command_line    $USER1$/notify_ack_handle $HOSTNAME$ \
			$SERVICEACKAUTHOR$ $NOTIFICATIONTYPE$ \
			$SERVICEDESC$
}

I wrapped the lines with \ for readability, should all be on one line.

And finally, a contact that you add to the host/service that you want 
your custom notification handler to work on...

define contact {
	use				generic-contact
	service_notification_command	svc_notify_ack_handle
	host_notification_command	host_notify_ack_handle
	host_notification_period	24x7
	host_notification_options	d,u,r,f
	service_notification_period	24x7
	service_notification_options	w,u,c,r,f
}

This does execute on every notification type, but because of the case 
statement in the script, only does anything useful when the notification 
type is ACKNOWLEDGEMENT.

[1]: http://nagios.sourceforge.net/docs/3_0/macrolist.html

Hope that gives you some ideas to play with.  I'd love to see what you 
come up with if you can post a follow up.

-- 
Jonathan angliss


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