Puppet users - Jun 2012 - Question about puppetlabs/stdlib (/etc/facter/facts.d)

This may be an obvious question, but I''d rather ask than guess at it.

Do the actual file names have any meaning to puppet or facter ?

Seems to me that as long as the facts are syntactically correct and do not
conflict with facts in any other file,
the file names are only important to the human maintainer of this fact
collection.

Is this accurate ?

“Sometimes I think the surest sign that intelligent life exists elsewhere in the
universe is that none of it has tried to contact us.”
Bill Waterson (Calvin & Hobbes)

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On Tue, Jun 19, 2012 at 8:56 AM, Dan White <ygor@comcast.net> wrote:
> This may be an obvious question, but I''d rather ask than guess at
it.
>
> Do the actual file names have any meaning to puppet or facter ?
>
They used to matter with Facter, but they don''t since 1.5.8.

You can see this by running `facter uptime_days` from the command line.
 The fact is actually implemented in uptime.rb, so Facter wouldn''t load
the
right file in 1.5.7 and prior.  It would think the fact doesn''t exist
as a
result.  In 1.5.8 and later, Facter loads all facts from all files and
evaluates the one you explicitly request.  So it doesn''t matter anymore
in
1.5.8 and later.

In Puppet, you should name your custom types and providers matching the
name of the type and provider.  This is because the autoloader in Puppet
behaves differently than Facter''s loading mechanism.  The autoloader
expects types, providers, functions, faces, and reports to be located in a
path based on their name.

> Seems to me that as long as the facts are syntactically correct and do not
> conflict with facts in any other file,
> the file names are only important to the human maintainer of this fact
> collection.
>
> Is this accurate ?
>
Yes, for custom facts with Facter 1.5.8 and later it''s accurate.

-Jeff

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Thanks for the response, Jeff.

On Jun 19, 2012, at 4:03 PM, Jeff McCune wrote:
> On Tue, Jun 19, 2012 at 8:56 AM, Dan White <ygor@comcast.net> wrote:
> This may be an obvious question, but I''d rather ask than guess at
it.
> 
> Do the actual file names have any meaning to puppet or facter ?
> 
> They used to matter with Facter, but they don''t since 1.5.8.
> 
> You can see this by running `facter uptime_days` from the command line. 
The fact is actually implemented in uptime.rb, so Facter wouldn''t load
the right file in 1.5.7 and prior.  It would think the fact doesn''t
exist as a result.  In 1.5.8 and later, Facter loads all facts from all files
and evaluates the one you explicitly request.  So it doesn''t matter
anymore in 1.5.8 and later.
I think I covered that with "no conflicting facts".  If the system
already has a fact "uptime_days", then I would not want to try to
re-define it.
> In Puppet, you should name your custom types and providers matching the
name of the type and provider.  This is because the autoloader in Puppet behaves
differently than Facter''s loading mechanism.  The autoloader expects
types, providers, functions, faces, and reports to be located in a path based on
their name.
This makes perfect sense -- with one tiny possible exception: I started out
talking about custom facts.  I agree with what you are saying about types and
providers and such, but I started, to paraphrase the great Jack Webb, with just
the facts. :)
> Seems to me that as long as the facts are syntactically correct and do not
conflict with facts in any other file,
> the file names are only important to the human maintainer of this fact
collection.
> 
> Is this accurate ?
> 
> Yes, for custom facts with Facter 1.5.8 and later it''s accurate.
Thanks again.

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