Puppet users - Sep 2010 - problem with overriding in two sub classes of the same parent class

Hi all,

I''m working with class inheritance and run into a problem with a node
including two child classes of the same parent class. The two child
classes use the plusignment operator to append to the
''subscrube''
metaparm of the same resource in the parent class.

The error is:

err: Could not retrieve catalog from remote server: Error 400 on
SERVER: Parameter ''subscribe'' is already set on Service[httpd]
by
#<Puppet::Resource::Type:0x983e8f8> at /etc/puppet/manifests/site.pp:
16; cannot redefine at /etc/puppet/manifests/site.pp:24 on node test

I kind of understand why it doesn''t work, but is there a way to
achieve what I''m trying to do? I''ve tried playing with virtual
resources for service[httpd] but I can''t get that to work either. This
is the site.pp:

#Master Puppet configuration file

class httpd {
  service { "httpd":
    enable      => true,
    ensure      => true,
    hasrestart  => true,
    hasstatus   => true,
  }
}

class httpd::ssl inherits httpd {
  package { "mod_ssl": ensure => present, }

  Service["httpd"] {
    subscribe +> Package["mod_ssl"],
  }
}

class httpd::svn inherits httpd {
  package { "mod_dav_svn": ensure => present, }

  Service["httpd"] {
    subscribe +> Package["mod_dav_svn"],
  }
}

node test {
  include httpd::ssl
  include httpd::svn
}

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On Sep 28, 2010, at 7:53 AM, luke.bigum wrote:
> Hi all,
> 
> I''m working with class inheritance and run into a problem with a
node
> including two child classes of the same parent class. The two child
> classes use the plusignment operator to append to the
''subscrube''
> metaparm of the same resource in the parent class.
> 
> The error is:
> 
> err: Could not retrieve catalog from remote server: Error 400 on
> SERVER: Parameter ''subscribe'' is already set on
Service[httpd] by
> #<Puppet::Resource::Type:0x983e8f8> at /etc/puppet/manifests/site.pp:
> 16; cannot redefine at /etc/puppet/manifests/site.pp:24 on node test
> 
> I kind of understand why it doesn''t work, but is there a way to
> achieve what I''m trying to do?
If you are using this as an example and you want it to work in the general case,
I don''t know how.  If you''re asking how to make the example
work, use notify instead of subscribe.

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