Mechanism to transfer ownership of a Cinder volume

There is a need to support transferring of Cinder Volumes from one customer to another. An example might be where a specialty consultancy produces bespoke bootable volumes or volumes with large data sets. Once the volume is created, it can be transferred to the end customer using this process. Similarly, for bulk import of data to the cloud, the data ingress system can create a new cinder volume, copy the data from the physical device, and then transfer ownership of the device to the end-user.