Puppet users - Dec 2012 - Configuration for modules

I''m writing a module (with new types and new providers) to configure
Splunk
(either main servers or forwarders) that uses the Splunk REST API.

This API needs some authentication information, and I''d like that to be
configurable per-host (ie per host that puppet agent runs on).

Is there a standard way to do this? Should I drop a new file in to 
/etc/puppet/splunk.conf (or similar) with the config parameters I want to 
use, or even better, is there a nice well defined way to do this through a 
manifest?

I''ve thought about setting a global parameter, I have two classes; 
''splunk-monitor'' and ''splunk-user''. Planning
to make these both inherit
from a common class ''Puppet::Provider::Splunk'' with some
common utilities
like REST HTTP things - I copied this approach from the package providers.

If I were to set global parameters, would I need to define it like so:
Splunk-monitor {
  parameter => blah
}
Splunk-user {
  the_same_parameter_again => blah
}

.. or is there a way to define global configuration for the parent that 
applies to both:
Splunk {
  common_parameter => blah
}

Not sure how this would work when considering enumerating all the existing 
instances of configuration that this module adds - there can be many splunk 
monitor instances configured, so I''d want to enumerate them first, much
like how the package providers enumerate installed packages first.

I''ve tried to think about modules that need authentication information
to
analyse for some best practices, but haven''t come across any.

Any pointers in the right direction would be greatly appreciated.

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On 12/09/2012 06:15 AM, Nathan Ward wrote:
> If I were to set global parameters, would I need to define it like so:
> Splunk-monitor {
>    parameter => blah
> }
> Splunk-user {
>    the_same_parameter_again => blah
> }
>
> .. or is there a way to define global configuration for the parent that
> applies to both:
> Splunk {
>    common_parameter => blah
> }
I''m not expert in custom providers, but if you will write only two 
custom providers, what''s the problem with first approach? The KISS 
principle...

Because even if second approach works, everyone reading your manifests 
won''t know what the *_!#($ ''Splunk'' is... when you
don''t use it anywhere
but in that place setting the global parameters.

So in your case I would keep it simple and define it "twice", once per
resource type.



-- 
Jakov Sosic
www.srce.unizg.hr

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