It's a function of my ignorance of writing custom facts. I have yet to find
> a good reference for doing so and aped entirely code examples found online.
> I haven't the slightest idea of what setcode does. Here's my top search
> result for 'factor puppet':
>
>
Good question. The 'setcode do" ... "end" block is executed by facter to
generate a custom value for your fact. The value of the last expression in
that block is returned as the value for your custom fact. There are a
couple of resources here that you can check out -->
http://projects.puppetlabs.com/projects/1/wiki/Adding_Facts and -->
http://www.puppetlabs.com/blog/facter-part-1-facter-101/ that should provide
some help!
>
> I search for 'factor' or 'fact' and get a brief reference to using
> pre-cooked facts. The search 'puppet custom facts' lead to the references
> mentioned in my previous email; none of which are API references. The phrase
> 'facter rdoc puppet' returns nothing apropos. Do you know of a proper
> reference to facter's API? If not, would you kindly explain setcode and why
> code being outside of it makes you nervous?
>
>
>> Also, try 'notify'ing the fact value in the scope wherein you evaluate
>> the template. For example,
>>
>> class example {
>> notify { "maintenance_work_mem_debug":
>> message => "maintenance_work_mem is '${::maintenance_work_mem}'
>> for kernel '${::kernel}'"
>> }
>>
>> file {"/etc/my_templated_file":
>> content => template("my_template.erb")
>> }
>> }
>>
>>
> The issue has nondeterministically resolved itself, which is a bummer; I
> can no longer debug. I understand 'notify' only in the context of services
> or execs. What does it mean to notify a fact? Moreover, do you have a
> reference to the broader meaning of 'notify' that I am, apparently, missing?
>
Also, 'notify' is another resource in Puppet, just like 'file', 'package',
and 'service' are. You can setup a notify resource to output the contents
of its 'message' parameter to the screen with every puppet run. This helps
you debug because you can also use string interpolation to retrieve the
value of variables or facts during the puppet run. John used the following
example:
notify { "maintenance_work_mem_debug":
> message => "maintenance_work_mem is '${::maintenance_work_mem}'
> for kernel '${::kernel}'"
> }
Using that notify resource, it will output "maintenance_work_mem is <value
of that fact>" during the puppet run.
Hope this helps!
>
>
>>
>> John
>>
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>>
>
>
> --
> Brian L. Troutwine
>
>
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--
Gary Larizza
Professional Services Engineer
Puppet Labs
Join us for PuppetConf <http://bit.ly/puppetconfsig>, September 22nd and
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