Open Stack

So anyway, let's get back to the topic this thread was discussing  
about - "passing meta data into provider stacks".

It seems that we have all reached an agreement that deletepolicy and  
updatepolicy will be passed as params, and metadata will be exposed to  
provider templates through a function

In terms of implemetation,

MetaData:

- add a resolve method to template.py to handle   
{'Fn::ProvidedResource': 'Metadata'}

DeletePolicy/UpdatePolicy:

- add stack_resource.StackResource.compose_policy_params() -> Json  
encoded delete and update policies

- have create_with_template update params with delete/update policies  
composed by compose_policy_params
(json-parameters implementation is already in review, hope it will be  
available soon)


I will start the implementation if there is no objection.


Liang