Issue #22587 has been updated by Vadim Nevorotin.
Well, I think that the best way is to pass undef to all resources. Because in
that case there is the same behavior of all values. All copy operations must do
the same. If 'undef' is a valid value, so
$test = undef
$test2 = $test
and
class foo (
$test2 = 'test',
) {
...
}
$test = undef
class {'foo': test2 => $test }
must work identical. In both cases $test2 must be 'undef'.
----------------------------------------
Feature #22587: Default value for all type's atrributes
https://projects.puppetlabs.com/issues/22587#change-98815
* Author: Vadim Nevorotin
* Status: Needs More Information
* Priority: Normal
* Assignee: Vadim Nevorotin
* Category:
* Target version:
* Affected Puppet version:
* Keywords:
* Branch:
----------------------------------------
Each attribute for all built-in types must have default values. (from here:
http://docs.puppetlabs.com/references/3.stable/type.html)
It's very important when you wrap some type with parametrized class/defined
type. I that case you should pass parameters from container to wrapped type. So
you must know default values for all type's attribute to add then as default
values for class/defined type.
E.g. you has standard package->config->service parametrized class. You want to
add enable and ensure attributes of service to main class:
class someclass (
$ensure = ????,
$enabled = ????,
...
) {
service {'someservice':
ensure => $ensure,
enabled => $enabled,
...
Now you can't simply use default values of attributes from service to class,
because there is no default values. So behavior of whole class differs from
behavior of a service. And so there is a lot of problems in large installations.
See http://projects.puppetlabs.com/issues/22580 - here is one of examples.
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