Puppet users - Sep 2013 - Facter value at Catalog compilation

Hi,

I''ve got a facter shipped with a custom module. This factor returns the
version of a determined package. It returns nil if the package is not
installed yet.

When running for the first time, assuming the package is not installed, the
facter will be still nil. When referring to that facter in the manifest -
for example in a file resource - it fails, because it has been compiled
with a nil value. When the package is already installed, it works great.

Just out of curiosity, is there any workaround other than if/else
statements?

Thanks,
-frederiko

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Post the code for the custom fact?

On Thursday, September 19, 2013 2:23:15 PM UTC-7, Frederiko Costa
wrote:
>
> Hi,
>
> I''ve got a facter shipped with a custom module. This factor
returns the
> version of a determined package. It returns nil if the package is not 
> installed yet.
>
> When running for the first time, assuming the package is not installed, 
> the facter will be still nil. When referring to that facter in the manifest
> - for example in a file resource - it fails, because it has been compiled 
> with a nil value. When the package is already installed, it works great.
>
> Just out of curiosity, is there any workaround other than if/else 
> statements?
>
> Thanks,
> -frederiko
>
>  
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Sure ...
Here it is:

#
# terracota_version.rb
#

# Reports terracota version if terracotta is installed

Facter.add(:terracotta_version) do
  cmd = %x{/bin/rpm -qa terracotta --queryformat %{VERSION}}
  setcode do
if ! cmd.nil?
cmd
 else
nil
end
  end
end

-frederiko



On Fri, Sep 20, 2013 at 10:25 AM, Ellison Marks <gtyaoi@gmail.com> wrote:
> Post the code for the custom fact?
>
>
> On Thursday, September 19, 2013 2:23:15 PM UTC-7, Frederiko Costa wrote:
>>
>> Hi,
>>
>> I''ve got a facter shipped with a custom module. This factor
returns the
>> version of a determined package. It returns nil if the package is not
>> installed yet.
>>
>> When running for the first time, assuming the package is not installed,
>> the facter will be still nil. When referring to that facter in the
manifest
>> - for example in a file resource - it fails, because it has been
compiled
>> with a nil value. When the package is already installed, it works
great.
>>
>> Just out of curiosity, is there any workaround other than if/else
>> statements?
>>
>> Thanks,
>> -frederiko
>>
>>   --
> You received this message because you are subscribed to the Google Groups
> "Puppet Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to puppet-users+unsubscribe@googlegroups.com.
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> Visit this group at http://groups.google.com/group/puppet-users.
> For more options, visit https://groups.google.com/groups/opt_out.
>
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On Thursday, September 19, 2013 4:23:15 PM UTC-5, Frederiko Costa
wrote:
>
> Hi,
>
> I''ve got a facter shipped with a custom module. This factor
returns the
> version of a determined package. It returns nil if the package is not 
> installed yet.
>
> When running for the first time, assuming the package is not installed, 
> the facter will be still nil. When referring to that facter in the manifest
> - for example in a file resource - it fails, because it has been compiled 
> with a nil value. When the package is already installed, it works great.
>
> Just out of curiosity, is there any workaround other than if/else 
> statements?
>
>
Like what?  Puppet has more conditional statements than just if/else, but 
I''m having trouble seeing how you imagine being able to handle a
special
case such as you describe without using any of them.

Were you also seeking advice about your bootstrapping problem?  If so, then 
it would be helpful to have some information about how your custom fact is 
used, and more generally what your module is trying to accomplish.


John

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