def test_from_legacy_dict(self):
obj = migrate_data.HyperVLiveMigrateData(is_shared_instance_path=False)
legacy = obj.to_legacy_dict()
obj2 = migrate_data.HyperVLiveMigrateData()
obj2.from_legacy_dict(legacy)
self.assertEqual(obj.is_shared_instance_path,
obj2.is_shared_instance_path)
def test_obj_make_compatible(self):
obj = migrate_data.HyperVLiveMigrateData(
is_shared_instance_path=True, old_vol_attachment_ids={'yes': 'no'})
primitive = obj.obj_to_primitive(target_version='1.0')
self.assertNotIn('is_shared_instance_path', primitive)
primitive = obj.obj_to_primitive(target_version='1.1')
self.assertNotIn('old_vol_attachment_ids', primitive)
def test_to_legacy_dict(self):
obj = migrate_data.HyperVLiveMigrateData(
is_shared_instance_path=False)
expected = {
'is_shared_instance_path': False,
}
self.assertEqual(expected, obj.to_legacy_dict())
def check_can_live_migrate_destination(self,
ctxt,
instance_ref,
src_compute_info,
dst_compute_info,
block_migration=False,
disk_over_commit=False):
LOG.debug("check_can_live_migrate_destination called", instance_ref)
return migrate_data_obj.HyperVLiveMigrateData()
def check_can_live_migrate_destination(self, ctxt, instance_ref,
src_compute_info, dst_compute_info,
block_migration=False,
disk_over_commit=False):
LOG.debug("check_can_live_migrate_destination called",
instance=instance_ref)
migrate_data = migrate_data_obj.HyperVLiveMigrateData()
migrate_data.is_shared_instance_path = (
self._pathutils.check_remote_instances_dir_shared(
instance_ref.host))
return migrate_data
def test_obj_make_compatible(self):
obj = migrate_data.HyperVLiveMigrateData(
is_shared_instance_path=True,
old_vol_attachment_ids={'yes': 'no'},
wait_for_vif_plugged=True)
data = lambda x: x['nova_object.data']
primitive = data(obj.obj_to_primitive())
self.assertIn('is_shared_instance_path', primitive)
primitive = data(obj.obj_to_primitive(target_version='1.0'))
self.assertNotIn('is_shared_instance_path', primitive)
primitive = data(obj.obj_to_primitive(target_version='1.1'))
self.assertNotIn('old_vol_attachment_ids', primitive)
primitive = data(obj.obj_to_primitive(target_version='1.2'))
self.assertNotIn('wait_for_vif_plugged', primitive)
def live_migration(self,
context,
instance_ref,
dest,
post_method,
recover_method,
block_migration=False,
migrate_data=None):
LOG.debug("live_migration called", instance=instance_ref)
instance_name = instance_ref["name"]
if migrate_data and 'is_shared_instance_path' in migrate_data:
shared_storage = migrate_data.is_shared_instance_path
else:
shared_storage = (
self._pathutils.check_remote_instances_dir_shared(dest))
if migrate_data:
migrate_data.is_shared_instance_path = shared_storage
else:
migrate_data = migrate_data_obj.HyperVLiveMigrateData(
is_shared_instance_path=shared_storage)
try:
# We must make sure that the console log workers are stopped,
# otherwise we won't be able to delete / move VM log files.
self._serial_console_ops.stop_console_handler(instance_name)
if not shared_storage:
self._pathutils.copy_vm_console_logs(instance_name, dest)
self._vmops.copy_vm_dvd_disks(instance_name, dest)
self._livemigrutils.live_migrate_vm(
instance_name, dest, migrate_disks=not shared_storage)
except Exception:
with excutils.save_and_reraise_exception():
LOG.debug(
"Calling live migration recover_method "
"for instance: %s", instance_name)
recover_method(context, instance_ref, dest, migrate_data)
LOG.debug("Calling live migration post_method for instance: %s",
instance_name)
post_method(context, instance_ref, dest, block_migration, migrate_data)
def _test_post_live_migration(self,
mock_disconnect_volumes,
shared_storage=False):
migrate_data = migrate_data_obj.HyperVLiveMigrateData(
is_shared_instance_path=shared_storage)
self._livemigrops.post_live_migration(self.context,
mock.sentinel.instance,
mock.sentinel.block_device_info,
migrate_data)
mock_disconnect_volumes.assert_called_once_with(
mock.sentinel.block_device_info)
mock_get_inst_dir = self._pathutils.get_instance_dir
if not shared_storage:
mock_get_inst_dir.assert_called_once_with(
mock.sentinel.instance.name, create_dir=False, remove_dir=True)
else:
self.assertFalse(mock_get_inst_dir.called)
def check_can_live_migrate_destination(self, ctxt, instance_ref,
src_compute_info, dst_compute_info,
block_migration=False,
disk_over_commit=False):
LOG.debug("check_can_live_migrate_destination called",
instance=instance_ref)
migrate_data = migrate_data_obj.HyperVLiveMigrateData()
try:
# The remote instance dir might not exist or other issue to cause
# OSError in check_remote_instances_dir_shared function
migrate_data.is_shared_instance_path = (
self._pathutils.check_remote_instances_dir_shared(
instance_ref.host))
except exception.FileNotFound as e:
reason = _('Unavailable instance location: %s') % e
raise exception.MigrationPreCheckError(reason=reason)
return migrate_data
def _test_live_migration(self,
mock_copy_dvd_disk,
mock_stop_console_handler,
side_effect=None,
shared_storage=False,
migrate_data_received=True,
migrate_data_version='1.1'):
mock_instance = fake_instance.fake_instance_obj(self.context)
mock_post = mock.MagicMock()
mock_recover = mock.MagicMock()
mock_copy_logs = self._livemigrops._pathutils.copy_vm_console_logs
fake_dest = mock.sentinel.DESTINATION
mock_check_shared_inst_dir = (
self._pathutils.check_remote_instances_dir_shared)
mock_check_shared_inst_dir.return_value = shared_storage
self._livemigrops._livemigrutils.live_migrate_vm.side_effect = [
side_effect
]
if migrate_data_received:
migrate_data = migrate_data_obj.HyperVLiveMigrateData()
if migrate_data_version != '1.0':
migrate_data.is_shared_instance_path = shared_storage
else:
migrate_data = None
if side_effect is os_win_exc.HyperVException:
self.assertRaises(os_win_exc.HyperVException,
self._livemigrops.live_migration, self.context,
mock_instance, fake_dest, mock_post,
mock_recover, mock.sentinel.block_migr,
migrate_data)
mock_recover.assert_called_once_with(self.context, mock_instance,
fake_dest, migrate_data)
else:
self._livemigrops.live_migration(
context=self.context,
instance_ref=mock_instance,
dest=fake_dest,
post_method=mock_post,
recover_method=mock_recover,
block_migration=(mock.sentinel.block_migr),
migrate_data=migrate_data)
post_call_args = mock_post.call_args_list
self.assertEqual(1, len(post_call_args))
post_call_args_list = post_call_args[0][0]
self.assertEqual((self.context, mock_instance, fake_dest,
mock.sentinel.block_migr),
post_call_args_list[:-1])
# The last argument, the migrate_data object, should be created
# by the callee if not received.
migrate_data_arg = post_call_args_list[-1]
self.assertIsInstance(migrate_data_arg,
migrate_data_obj.HyperVLiveMigrateData)
self.assertEqual(shared_storage,
migrate_data_arg.is_shared_instance_path)
if not migrate_data_received or migrate_data_version == '1.0':
mock_check_shared_inst_dir.assert_called_once_with(fake_dest)
else:
self.assertFalse(mock_check_shared_inst_dir.called)
mock_stop_console_handler.assert_called_once_with(mock_instance.name)
if not shared_storage:
mock_copy_logs.assert_called_once_with(mock_instance.name,
fake_dest)
mock_copy_dvd_disk.assert_called_once_with(mock_instance.name,
fake_dest)
else:
self.assertFalse(mock_copy_logs.called)
self.assertFalse(mock_copy_dvd_disk.called)
mock_live_migr = self._livemigrops._livemigrutils.live_migrate_vm
mock_live_migr.assert_called_once_with(mock_instance.name, fake_dest)
def test_obj_make_compatible(self):
obj = migrate_data.HyperVLiveMigrateData(is_shared_instance_path=True)
primitive = obj.obj_to_primitive(target_version='1.0')
self.assertNotIn('is_shared_instance_path', primitive)
