Puppet users - Sep 2011 - Scope and puppet 2.7

Hi all,

I''m planning to upgrade our server/client to 2.7 and would like to
completely understand the big change in the dynamic scope deprecation.


It says that 2.7 will issue deprecation warning. Ok, so I''ve upgraded a
test server, test node and moved my code there. ran puppet and  no
warnings. Great!

So, now, I''d like to qualify my vars. In a code like:

class global_defaults {
        include common::ganglia
        include common::bacula
	[...]
        include common::snmp
}


node ''mynode'' {
        $mcast_ip = ''22.22.11.11''
	$cluster = ''Test''
        $pakiti_tag = ''tag1''
        $grid_service = ''ui''
        $root_password = ''ui''
        $rootkit_detector_mail = ''arnaubria_at_my_domain''
 	include global_defaults
}


all the vars defined into "mynode" refer to classes included in
global_defaults.

So,i.e, $mcast_ip and $cluster which refer to ganglia module should
they be renamed to $common::ganglia::mcast_ip and
$common::ganglia::cluster ?

Cause this is not working and giving a error:

Cannot assign to variables in other namespaces

**same if I declare them "global" variables $::mcast_ip

So, what''s wrong with my code? why I can''t rename my vars to
new syntax?


TIA,
Arnau

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On Wed, 14 Sep 2011 15:16:45 +0200
Arnau Bria wrote:
> Hi all,
Hi !

I reply myself... maybe it''s useful for someone in the future.
 
> I''m planning to upgrade our server/client to 2.7 and would like to
> completely understand the big change in the dynamic scope deprecation.
> 
> 
> It says that 2.7 will issue deprecation warning. Ok, so I''ve
upgraded
> a test server, test node and moved my code there. ran puppet and  no
> warnings. Great!
Warning are logged into puppetmaster log, not at client level.
 
[...]
> So,i.e, $mcast_ip and $cluster which refer to ganglia module should
> they be renamed to $common::ganglia::mcast_ip and
> $common::ganglia::cluster ?
> 
> Cause this is not working and giving a error:
> 
> Cannot assign to variables in other namespaces
from: http://docs.puppetlabs.com/guides/language_guide.html

"Qualified variables are read-only — you cannot set a variable’s value
from other class."

so, the var''s value must be set inside the class (local scope) or in
the top (outside any class in site.pp). 


Cheers,
Arnau

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