On Friday, January 17, 2014 2:39:16 AM UTC-6, William Leese wrote:
>
> code wise, I guess this boils down to:
>
> @user{ 'wleese3':
> comment => "bleh",
> uid => 9999,
> }
>
> User <| title == 'wleese3' |> { comment => 'blah', uid => undef }
>
> where I used to rely on uid => undef resulting in 9999 being used.
>
If that ever worked for you as you think it did then that represented a
Puppet bug. The behavior does not correspond to current or any historic
behavior of which I am aware.
Declaring a resource parameter to have the pseudo-value undef is an
affirmative expression of not declaring any value for that parameter.
Resource parameter *overrides*, on the other hand, are more literal than
that. Overriding a parameter with undef is not an expression of not
overriding that parameter at all; rather, doing so overrides the target
resource declaration as if it had originally declared undef for the
parameter in question. That is, it overrides the original declaration as
if it had not declared any value for the parameter.
John
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