Issue #5517 has been updated by Jonathon Anderson.
Nick Lewis wrote:
> Do you have a concrete use case for this? There may be another way to
> accomplish the desired behavior, or at least to provide some mechanism to
> accomplish it.
*I'm* trying to do this to pass variables to a templated file in the
parameterized class. I have `class {'ntp': servers => [list, of, servers] }`,
later overridden as `Class['ntp'] { servers => [other, list, of, servers] }`.
In this use case, I always see the original list of servers in the eventual
`ntp.conf`.
Andrew Forgue wrote:
> other resources can have their attributes overridden by sub classes, it is
> logical and, I think, reasonable to assume that classes can as well (and
> since this used to work in 2.6.½ it’s a clear regression).
I share this reasoning.
----------------------------------------
Bug #5517: behavior change within 2.6 makes it impossible to override class
parameters of "included" parametrized classes
https://projects.puppetlabs.com/issues/5517
Author: Peter Meier
Status: Investigating
Priority: High
Assignee: Nick Lewis
Category: language
Target version: 2.6.x
Affected Puppet version: 2.6.3
Keywords: parameterized_classes
Branch:
In 2.6.1 the following recipe:
<pre>
class a(
$b_c = { 'b' => 'foo' }
) {
notice $a::b_c
if $a::b_c {
notice $a::b_c['b']
}
}
class b {
class{'a': b_c => false }
}
class b::c inherits b {
Class['a']{ b_c => { 'b' => 'bleh' } }
}
class b::d {
include ::b::c
}
include b::d
</pre>
produces the following output:
<pre>
$ puppet foo.pp
notice: Scope(Class[A]): bbleh
notice: Scope(Class[A]): bleh
</pre>
Which is what I expected. However with 2.6.3 it produces the following output:
<pre>
# puppet foo.pp
notice: Scope(Class[A]): false
</pre>
Imho likely the changes for #4778 and #5074 are responsible for that behavior
change.
However this makes it impossible to overwrite parameters of a "included"
parametrized class in a subclass. There are only ugly workarounds for that
problem and I think this should actually work as it did within 2.6.1. Otherwise
the usefulness of parametrized classes is quite reduced.
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