Re: [Puppet Users] Overriding resources created with a define

[John T. Guthrie]

Hello all,

First, I would like to thank you for your suggestion about an 'if/case' 
statement.  I think that should do what I want.  However, I would think 
that even if defines are scoped separately from classes, that wouldn't 
necessarily apply in the case that I outlined below since I used a 
different define name in the subclass as opposed to the name for the 
define in the parent class.  I was trying to get a resource override 
into a define.  Is that not possible; i.e., can defines only handle 
resource definitions, but not overrides?

Thanks.

John Guthrie

On 01/08/2010 03:29 PM, Trevor Vaughan wrote:
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So, I believe (someone please correct me if I'm wrong) that defines are
actually separately scoped from the classes that contain them and cannot
currently be overridden.

The nesting that you have below is merely a convenience for writing:

define test::myfile () { ... }

I would suggest either using a template or an inline 'if/case' statement
to apply the logic you require.

Trevor

On 01/08/2010 03:06 PM, John T. Guthrie wrote:
   
Hello all,

Suppose you have a resource that is created with a define such as the
following:

class test {
     define myfile () {
         file {
             "/tmp/$name":
                 content =>  generate("/bin/echo","$name");
         }
     }

     myfile {
         "foo":
     }
}

And it turns out that I want to create a subclass that overrides a
property of "/tmp/foo", how would I go about doing that?  When I try to
add the following subclass:

class test::override inherits test {
     define myfileover () {
         File["/tmp/$name"] {
             content =>  generate("/bin/echo","$name","$name")
         }
     }

     myfileover {
         "blah":
     }
}

I get the following error:

Could not retrieve catalog: Only subclasses can override parameters at
/etc/puppet/network/prod/modules/test/manifests/init.pp:20 on node
xxxx.  Does anyone have any suggestions?

Thanks.

John Guthrie
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