per host custom macros

[David Mansfield]

[apologies if anyone receieves dups of this. i sent it from the wrong 
email address and I understand list management is fairly strict]

Hugo van der Kooij wrote:
> On Wed, 29 Mar 2006, Terry wrote:
> 
>> You could maybe write an "intelligent" plugin to query the host
>> information from another source based on the service name or something
>> but nagios needs to know the IP address somehow.  Where would you want
>> to put this information so nagios can perform the service
>> appropriately?
> 
> Just to sum it up:
>  - David dislikes adding extra hosts
>  - David dislikes adding extra checks.
> 

Not quite fair.  I'm arguing that it would be far more maintainable not
that I like or dislike it.  For 25 hosts with 4 services, would you
rather maintain 33 objects or 125?

33 = 25 hosts assigned to 4 hostgroups and 4 services bound to the
hostgroups

125 = 25 hosts, 25 service#1, 25 service#2, 25 service#3, 25 service #4?

Scale this up with hosts and services and it gets really bad.

> If this hostgroup is important than how is each service to learn their
> different address? Because it can't be from the host group nor from any
> macro.
> 

You're wrong.  It just works.

As a new user I guess I assumed that assigning a service to a
hostgroup_name instead of a host_name would work (contrary to the
documentation BTW).

And guess what.  It DOES WORK.

Take a look.  Define three hosts, put them in hostgroup 'ssh'. define a
service 'ssh' assign it to hostgroup_name 'ssh'.  It just works.  The
check_ssh is invoked for each member of the hostgroup just like a newbie
like me would expect.

The problem is that for a service requiring something other than
$HOSTADDRESS$ it breaks down.


David



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