nova/nova/tests/functional/libvirt
Sean Mooney 9f57d16f38 Block rebuild when NUMA topology changed
If the image change during a rebuild it's possible for the request
NUMA topology to change. As a rebuild uses a noop claim in the
resource tracker the NUMA topology will not be updated as part of
a rebuild.

If the NUMA constraints do not change, a rebuild will continue as normal.
If the new constraints conflict with the existing NUMA constraints of the
instance the rebuild will be rejected without altering the status of the
instance.

This change introduces an API check to block rebuild when the NUMA
requirements for the new image do not match the existing NUMA constraints.
This is in line with the previous check introduced to prevent the rebuild of
volume-backed instances which similarly are not supported.

This change adds functional tests to assert the expected behaviour of
rebuilding NUMA instances with new images. This change also asserts that
in place rebuilds of numa instances is currently not supported.

Conflicts:
    nova/api/openstack/compute/servers.py
    nova/tests/functional/libvirt/test_numa_servers.py

NOTE(sean-k-mooney): due to the lack of
Ifcda7336d56c9b623720ee018ec5697740986273 the Fake HostInfo objects
created in the functional tests were updated to use the NUMAHostInfo
class. Prior to Ifcda7336d56c9b623720ee018ec5697740986273 the
Fake HostInfo class did not construct a numa topology from the kwargs
and instead only set a numa topology if it was passed in during
construction. In older release the initialization of the numa
topology from kwargs was a feature of NUMAHostInfo.
The servers.py conflicts are due to a lack of
I5576fa2a67d2771614266022428b4a95487ab6d5 in Stein.

Closes-Bug: #1763766
Partial-implements: blueprint inplace-rebuild-of-numa-instances
Change-Id: I0322d872bdff68936033a6f5a54e8296a6fb3434
(cherry picked from commit 6f5358ac19)
(cherry picked from commit 745de99063)
2020-01-22 14:59:01 +00:00
..
__init__.py tests: introduce a NUMAServersTest class 2015-04-16 11:43:53 -04:00
base.py libvirt: Use SATA bus for cdrom devices when using Q35 machine type 2019-06-13 15:56:58 +00:00
test_numa_servers.py Block rebuild when NUMA topology changed 2020-01-22 14:59:01 +00:00
test_pci_sriov_servers.py Include all network devices in nova diagnostics 2019-05-04 09:44:22 -06:00
test_report_cpu_traits.py Convert driver supported capabilities to compute node provider traits 2019-02-28 23:28:19 +00:00
test_reshape.py FUP for test_reshape 2019-03-06 15:12:54 -06:00
test_rt_servers.py tests: Create functional libvirt test base class 2018-08-23 17:37:50 +00:00
test_shared_resource_provider.py Use uuidsentinel from oslo.utils 2018-09-05 09:08:54 -05:00