setting variables with a pluging

[Bettilyon, Allen]

Hello,

Wondering why this is not working:


control:

   actionsequence = (
       module:base_class
       copy
   )

copy:

   /some/file    dest=/some/file
                       server=$(update_host)


When the output of module:base_class has the following line:

=update_host=10.11.1.252


The error I get is:

cf:host1:/var/cfengine/inputs/update.conf:49: DNS lookup failure. 
Unknown host
Culprit: ${update_host}
Make sure that fully qualified names can be looked up at your site!
i.e. www.gnu.org, not just www. If you use NIS or /etc/hosts
make sure that the full form is registered too as an alias!
gethostbyname: : No such file or directory

I know the variable is getting set, becuause if I swap the copy for the 
following shellcommand:
  "/bin/echo update_host: $(update_hosts)"

Than I see the output of the proper ip address according to the logic in 
the plugin.


I'm guessing it has to do with a parseing order.  The copy context is 
checked before the module is executed.  Anyone have any sudgestions on 
how to achieve this differently?  I'm trying to create a global 
update.conf that I can push to all hosts that is intelligent enough to 
know where to grab the updates from, based on ip address.  

- Allen