Pseudo parameters should be tied to template versions

[Steve Baker]

So we can manage adding pseudo-parameters over time, they should be bound to template versions.

[Pradeep Kumar Singh (pradeep-singh-u)]

Hi Steve,

Can you please guide me briefly how to fix the issue?

[Steve Baker (steve-stevebaker)]

There needs to be a subclass of HOTParameters called HOTParameters20130523
http://git.openstack.org/cgit/openstack/heat/tree/heat/engine/hot/parameters.py#n112

All current 4 pseudo-parameters should be put in this class.

HOTemplate20130523 needs to return a HOTParameters20130523:
http://git.openstack.org/cgit/openstack/heat/tree/heat/engine/hot/template.py#n198

From then on, whenever we add a pseudo-parameter, we subclass HOTParameters20130523 and add it there.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/188660

[OpenStack Infra (hudson-openstack)]

Change abandoned by Zane Bitter (<email address hidden>) on branch: master
Review: https://review.openstack.org/188660
Reason: No response to feedback for a year