Issue #5517 has been updated by Fox Box.
I would also like to see this functionality. The inability to override class
parameters seems to be a shortcoming.
For example (using 2.7.17):
# nodes.pp
node basenode {
include whatever
class { 'mymod': param => 'a' }
}
node mynode inherits basenode {
Class['mymod'] { param => 'b' }
}
# mymod.pp
class mymod ( $param = undef ) {
notify { "$param": }
}
mynode$ sudo puppet agent --test
notice: a
notice: /Stage[main]/Mymod/Notify[a]/message: defined 'message' as 'a'
----------------------------------------
Bug #5517: behavior change within 2.6 makes it impossible to override class
parameters of "included" parametrized classes
https://projects.puppetlabs.com/issues/5517#change-65576
Author: Peter Meier
Status: Accepted
Priority: High
Assignee: Nick Lewis
Category: language
Target version: 2.7.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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