Issue #17773 has been updated by eric sorenson.

Status changed from Unreviewed to Needs More Information
Assignee set to Nick Cammorato

Nick, by "a few other issues crop up" do you mean different bugs in the bug 
tracker about this? Or problems in other providers that are also related to not 
having an explicit `to_s` called on them?

Can you explain why the `to_s` fixes the problem? I don't dispute that it helps 
(though I haven't set up a reproduction step) but I don't understand why.
----------------------------------------
Bug #17773: Using Mailalias provider causes agent to throw "Could not prefetch 
mailalias provider 'aliases': undefined method `strip' for nil:NilClass"
https://projects.puppetlabs.com/issues/17773#change-84076

Author: Nick Cammorato
Status: Needs More Information
Priority: Normal
Assignee: Nick Cammorato
Category: Red Hat
Target version: 
Affected Puppet version: 2.7.19
Keywords: 
Branch: 


CENTOS6.3, Ruby 1.8.7, Puppet agent/master 2.7.19

On a non-standard alias location, and as a virtual resource, as follows:
    @mailalias { $name:
      ensure => $ensures,
      recipient => $destination,
      target => $target,
    }
    
Everything still processes(apparently correctly) when the resources are 
realized, but a refresh is triggered on each and every puppet run.

The offending code seems to be in providers/mailalias/aliases.rb within the 
process method.

Altering the following:
    ret[:name] = records[0].strip
    ret[:recipient] = records[1].strip
so that the to_s conversion is implicit appears to resolve it.  As in:
    ret[:name] = records[0].to_s.strip
    ret[:recipient] = records[1].to_s.strip

I couldn't find anything in the changelog for 2.7.20 indicating that this was 
fixed.


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