Inside a custom function, how do you if noop is enabled ?

[Frédéric Lespez]

In a manifest, you can test the built-in variable $clientnoop to know if puppet agent runs in noop mode or not.
See https://docs.puppetlabs.com/puppet/latest/reference/lang_facts_and_builtin_vars.html#puppet-agent-facts

But inside a custom function, how can you know if noop is enabled or not ?
It seems that you cannot access the built-in variable $clientnoop inside function.

Any clues ?

Regards,
Fred

[Henrik Lindberg]

In the 3.x function API use:

lookupvar('varname')

In the 4.x function API use:

closure_scope.lookupvar('varname')

Here is the specification for the 4.x API.
https://github.com/puppetlabs/puppet-specifications/blob/master/language/func-api.md

Note that closure_scope in the 4.x API does not give access to the
variables in the scope calling the function, but it does provide access
to global variables.

Also consider looking up the $facts hash instead of directly looking up
individual facts like $clientnoop. This to be future proof. (See the
link you posted regarding details).

Regards
- henrik


> Regards,
> Fred
>
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[Frédéric Lespez]

In the 3.x function API use:

   lookupvar('varname')

In the 4.x function API use:

   closure_scope.lookupvar('varname')

Here is the specification for the 4.x API.
https://github.com/puppetlabs/puppet-specifications/blob/master/language/func-api.md

Thank Henrik. It works like a charm.
 

Also consider looking up the $facts hash instead of directly looking up
individual facts like $clientnoop. This to be future proof. (See the
link you posted regarding details).

In fact, using the $fact hash was my first choice. But I didn't find a clientnoop  fact, nor a noop fact.
Did I miss something ?

[Henrik Lindberg]

On 2015-21-09 22:34, Frédéric Lespez wrote:
>
> In the 3.x function API use:
>
> lookupvar('varname')
>
> In the 4.x function API use:
>
> closure_scope.lookupvar('varname')
>
> Here is the specification for the 4.x API.
> https://github.com/puppetlabs/puppet-specifications/blob/master/language/func-api.md

> <https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fpuppetlabs%2Fpuppet-specifications%2Fblob%2Fmaster%2Flanguage%2Ffunc-api.md&sa=D&sntz=1&usg=AFQjCNE-GaBgyAfECLuUg52Idq1Erm6KtQ>

>
>
> Thank Henrik. It works like a charm.
>
> Also consider looking up the $facts hash instead of directly looking up
> individual facts like $clientnoop. This to be future proof. (See the
> link you posted regarding details).
>
> In fact, using the $fact hash was my first choice. But I didn't find a
> clientnoop fact, nor a noop fact.
> Did I miss something ?
>

The docs are vague regarding $clientnoop - have to dig deeper to find
out what is going on wrt. that variable.

If you expected (as I did, but I did not really try things out) that it
is a fact and should have been in the $facts hash, then I suggest that a
ticket is logged. It is either a problem in code, or something that
should be mentioned in documentation.

- henrik

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