def _setup_fakelibvirt(self):
# So that the _supports_direct_io does the test based
# on the current working directory, instead of the
# default instances_path which doesn't exist
self.flags(instances_path=self.useFixture(fixtures.TempDir()).path)
# Put fakelibvirt in place
if 'libvirt' in sys.modules:
self.saved_libvirt = sys.modules['libvirt']
else:
self.saved_libvirt = None
self.useFixture(nova_fixtures.OSBrickFixture())
self.useFixture(nova_fixtures.LibvirtImageBackendFixture())
self.useFixture(nova_fixtures.LibvirtFixture())
self.useFixture(
fixtures.MonkeyPatch(
'nova.virt.libvirt.host.Host._conn_event_thread',
lambda *args: None))
self.flags(rescue_image_id="2",
rescue_kernel_id="3",
rescue_ramdisk_id=None,
snapshots_directory='./',
sysinfo_serial='none',
group='libvirt')
def fake_wait():
pass
def fake_detach_device_with_retry(_self, get_device_conf_func, device,
live, *args, **kwargs):
# Still calling detach, but instead of returning function
# that actually checks if device is gone from XML, just continue
# because XML never gets updated in these tests
_self.detach_device(get_device_conf_func(device), live=live)
return fake_wait
self.stub_out(
'nova.virt.libvirt.driver.LibvirtDriver.'
'_get_instance_disk_info_from_config',
lambda self, guest_config, block_device_info: [])
self.stub_out('nova.virt.disk.api.extend', lambda image, size: None)
self.stub_out(
'nova.virt.libvirt.driver.LibvirtDriver.'
'delete_instance_files', lambda self, instance: None)
self.stub_out('nova.virt.libvirt.guest.Guest.detach_device_with_retry',
fake_detach_device_with_retry)
self.stub_out('nova.virt.libvirt.guest.Guest.migrate',
lambda self, destination, migrate_uri=None, migrate_disks
=None, destination_xml=None, flags=0, bandwidth=0: None)
# We can't actually make a config drive v2 because ensure_tree has
# been faked out
self.stub_out('nova.virt.configdrive.ConfigDriveBuilder.make_drive',
lambda self, path: None)
def setUp(self):
self.flags(instances_path=self.useFixture(fixtures.TempDir()).path)
self.computes = {}
self.compute_rp_uuids = {}
super(ServersTestBase, self).setUp()
self.useFixture(nova_fixtures.LibvirtImageBackendFixture())
self.useFixture(nova_fixtures.LibvirtFixture())
self.useFixture(nova_fixtures.OSBrickFixture())
self.useFixture(
fixtures.MockPatch('nova.virt.libvirt.LibvirtDriver._create_image',
return_value=(False, False)))
self.useFixture(
fixtures.MockPatch(
'nova.virt.libvirt.LibvirtDriver._get_local_gb_info',
return_value={
'total': 128,
'used': 44,
'free': 84
}))
self.useFixture(
fixtures.MockPatch(
'nova.virt.libvirt.driver.libvirt_utils.is_valid_hostname',
return_value=True))
self.useFixture(
fixtures.MockPatch(
'nova.virt.libvirt.driver.libvirt_utils.file_open',
side_effect=lambda *a, **k: io.BytesIO(b'')))
self.useFixture(
fixtures.MockPatch('nova.privsep.utils.supports_direct_io',
return_value=True))
self.useFixture(
fixtures.MockPatch('nova.virt.libvirt.host.Host.get_online_cpus',
return_value=set(range(16))))
# Mock the 'get_connection' function, as we're going to need to provide
# custom capabilities for each test
_p = mock.patch('nova.virt.libvirt.host.Host.get_connection')
self.mock_conn = _p.start()
self.addCleanup(_p.stop)
def setUp(self):
super(NUMALiveMigrationBase, self).setUp()
self.useFixture(nova_fixtures.OSBrickFixture())
# NOTE(artom) There's a specific code path that we want to test.
# There's an instance.save() call in the compute manager's
# post_live_migration_at_destination(), and another instance.save()
# call in the libvirt driver's cleanup(), as called from
# _post_live_migration() in the compute manager. We want to make sure
# the latter does not clobber any NUMA topology information saved by
# the former. In order to trigger that code path, two things need to
# happen. First, the do_cleanup variable needs to be True, in order for
# driver.cleanup() to actually get called by _post_live_migration().
# Second, destroy_disks needs to be True as well, in order for
# cleanup() to enter the code block containing the instance.save()
# call. Both do_cleanup and destroy_disks are set by
# _live_migration_cleanup_flags(), so we just monkeypatch it to return
# what we want regardless of any shared storage configuration.
self.useFixture(
fixtures.MonkeyPatch(
'nova.compute.manager.ComputeManager.'
'_live_migration_cleanup_flags', lambda *args, **kwargs:
(True, True)))
def setUp(self):
super().setUp()
self.neutron.list_extensions = self.list_extensions
self.neutron_api = neutron.API()
self.useFixture(nova_fixtures.OSBrickFixture())
self.start_compute(hostname='start_host',
host_info=fakelibvirt.HostInfo(cpu_nodes=1,
cpu_sockets=1,
cpu_cores=4,
cpu_threads=2))
self.start_compute(hostname='end_host',
host_info=fakelibvirt.HostInfo(cpu_nodes=1,
cpu_sockets=1,
cpu_cores=4,
cpu_threads=2))
self.ctxt = context.get_admin_context()
# TODO(sean-k-mooney): remove this when it is part of ServersTestBase
self.useFixture(
fixtures.MonkeyPatch(
'nova.tests.fixtures.libvirt.Domain.migrateToURI3',
self._migrate_stub))