Puppet users - Aug 2011 - How to subclass a module?

Hi

I defined a module (xyz), which has following directories

 manifests/init.pp

class xyz is defined in init.pp in which I defined a service xyz. Now,
I want to have a another variation of xyz, say xyz_new which has a
different service start script, that is

class xyz_new inherits xyz {
    Service[''xyz'']: {
        start => "<new path to another start script>"
    }
}

Where should I define this new class xyz_new?

I put it under modules/xyz/manifests/classes/xyz_new.pp

The problem is that when I include this new class xyz_new, Puppet
complained about can not find init

err: /Stage[main]/xyz/Service[xyz]: Could not evaluate: Could not find
init script for ''xyz''

How can I avoid this?

Thanks

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On Aug 10, 12:04 am, Haitao Jiang <jianghai...@gmail.com>
wrote:
> I put it under modules/xyz/manifests/classes/xyz_new.pp
For Puppet auto-loading, the full path to that file should be:

modules/xyz/manifests/xyz_new.pp

and you won''t need any ''import'' statements.
> The problem is that when I include this new class xyz_new, Puppet
> complained about can not find init
>
> err: /Stage[main]/xyz/Service[xyz]: Could not evaluate: Could not find
> init script for ''xyz''
After some experimenting, you need to also override the
''status''
parameter, as Puppet needs to check if a service is alive or not to
figure out if it has to start and stop. This example will restart
Apache if it''s down:

class foo {
  service { "woof":
    ensure => running,
  }
}

class bar inherits foo {
  Service["woof"] {
    start => "/etc/init.d/httpd start",
    status => "/etc/init.d/httpd status",
  }
}

include bar

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