Support Cinder Custom Constraints
Support Cinder Custom Constraints, and apply them to related resources.
Many resources have property Volume/Snapshot which related with cinder
volume/snapshot, but we haven’t support corresponding custom constraints.
- Add cinder volume custom constraint, and to apply it for resources.
- Add cinder snapshot custom constraint, and to apply it for resources.
- Target Milestone for completion:
- Add/Apply cinder volume custom constraint.
- Add/Apply cinder snapshot custom constraint.
- Add UT/Tempest tests for all the changes.