- Only virt drivers in the nova.virt namespace may be loaded.
This has been the case according to nova docs for several
releases, but a quirk in some library code meant that loading
things outside the namespace continued to work
unintentionally. That has been fixed, which means "compute_driver
= nova.virt.foo" is invalid (and now enforced as such), and should
be "compute_driver = foo" instead.
- Virt drivers are no longer loaded with the import_object_ns
function, which means that only virt drivers in the nova.virt
namespace can be loaded.