Store and allow libvirt instance device buses and models to be updated for OpenStack Compute (nova)

QEMU support for device buses and models can come and go dependent on the underlying instance machine type *and* QEMU version used within an environment. The defaults provided by libosinfo and currently hardcoded in to the libvirt driver are also not persisted by each instance at present. ...

Provide nova-manage commands to refresh block device mapping connection_info for OpenStack Compute (nova)

The connection_info associated with a Cinder volume attachment stashed within Nova's block device mappings can often become stale. Previously operators have had to query the database directly for an understanding of the current state of the connection_info and could only migrate or shelve the instance to force a ref...

Image and flavor defined ephemeral storage encryption for OpenStack Compute (nova)

Image and flavor defined ephemeral storage encryption.