Add support for providing cinder scheduler hints when creating volumes

Registered by Edward Hope-Morley on 2014-07-11

When booting an instance with nova boot --block-device i.e. asking Nova to
auto-create storage for a new instance, there is currently no way for Nova to
hint to the Cinder scheduler how it should go about creating/placing this
volumes. This specification proposes adding support for storing cinder
extra_specs in Nova flavors and passing them to Cinder when volumes are
created.

Scheduler hints were added to python-cinderclient for the Cinder V2 API only so we would have to wait for the following blueprint to land in order to support this feature:

https://blueprints.launchpad.net/nova/+spec/support-cinderclient-v2

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
Edward Hope-Morley
Direction:
Needs approval
Assignee:
Edward Hope-Morley
Definition:
Pending Approval
Series goal:
None
Implementation:
Not started
Milestone target:
None

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