Inheritance

[John Relph]

Christoph Maser writes:
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>Could we change that to read
>
>hostgroups	+, linux-servers,web-servers
>
>
>this +<string> looks a bit awkward to me. Also considering how you use
>"!" as a unary operator +<string> makes people think the "+" is an
>operator for the following string.

Disagreed.  Your proposed syntax is more confusing.  Your syntax makes
it look like "+" is itself a hostgroup (albeit with special meaning).
The original syntax is well known and understood.  For example, Apache
configuration files use the "+" as proposed below.

I prefer Ethan's proposed syntax.

	-- John

>Chris
>Ethan Galstad wrote:
>> This is great idea.  I have personally run into a few situations where 
>> this feature would be useful, so I've just posted a patch to CVS for 
>> inclusion in Nagios 3. :-)
>> 
>> "Additive" string inheritance will work like this:
>> 
>> define host{
>> 	name	template
>> 	hostgroups	all-servers
>> 	}
>> 
>> define host{
>> 	name	linux1
>> 	use	template
>> 	hostgroups	+linux-servers,web-servers
>> 	}
>> 
>> The resulting effective definition will then be:
>> 
>> define host{
>> 	name	linux1
>> 	hostgroups	all-servers,linux-servers,web-servers
>> 	}
>> 
>> 
>> Kashif Ali wrote:
>>> I am not a coder, and to be honest, i appreciate all the work the 
>>> developers have done. I just wanted to know if there was any one who 
>>> thought this was a good idea, and maybe if it was already being done for 
>>> future releases :). I did think it was a good idea, maybe there is 
>>> better ways of doing what i wanted.
>>>
>>> Thanks anyway :)
>>>
>>> Kashif
>>>
>>> On 08/01/07, *Andreas Ericsson* <ae at op5.se <mailto:ae at op5.se>> wrote:
>>>
>>>     Kashif Ali wrote:
>>>      > Hey guys,
>>>      >
>>>      > A couple of days ago i posted a mail talking about a inheritance
>>>     and also
>>>      > described a idea. I havent had a reply, just wondering
>>>      >
>>>      > 1) was it a rubbish idea?
>>>
>>>     Not rubbish as such, but I'm not interested in writing this up (or even
>>>     using the feature), so I stayed silent. If you cook up the code and send
>>>     it to Ethan he might accept it. I don't think anyone else feels
>>>     strongly
>>>     enough about this to write the code for it though.
>>>
>>>      > 2) is this already being done?
>>>      >
>>>
>>>     If you're not writing the patch, I shouldn't think so.
>>>
>>>     --
>>>     Andreas Ericsson                   andreas.ericsson at op5.se
>>>     <mailto:andreas.ericsson at op5.se>
>>>     OP5 AB                             www.op5.se <http://www.op5.se>
>>>     Tel: +46 8-230225                  Fax: +46 8-230231
>> 
>> 
>> Ethan Galstad,
>> Nagios Developer
>> ---
>> Email: nagios at nagios.org
>> Website: http://www.nagios.org
>> 
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-- 
John Relph <John.Relph at noaa.gov>
NOAA/NESDIS/National Oceanographic Data Center

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Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier.
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642