def test_init(self):
def fake_validate(obj, dct):
pass
self.stub_out('nova.block_device.BlockDeviceDict._fields',
set(['field1', 'field2']))
self.stub_out('nova.block_device.BlockDeviceDict._db_only_fields',
set(['db_field1', 'db_field2']))
self.stub_out('nova.block_device.BlockDeviceDict._validate',
fake_validate)
# Make sure db fields are not picked up if they are not
# in the original dict
dev_dict = block_device.BlockDeviceDict({
'field1': 'foo',
'field2': 'bar',
'db_field1': 'baz'
})
self.assertIn('field1', dev_dict)
self.assertIn('field2', dev_dict)
self.assertIn('db_field1', dev_dict)
self.assertNotIn('db_field2', dev_dict)
# Make sure all expected fields are defaulted
dev_dict = block_device.BlockDeviceDict({'field1': 'foo'})
self.assertIn('field1', dev_dict)
self.assertIn('field2', dev_dict)
self.assertIsNone(dev_dict['field2'])
self.assertNotIn('db_field1', dev_dict)
self.assertNotIn('db_field2', dev_dict)
# Unless they are not meant to be
dev_dict = block_device.BlockDeviceDict({'field1': 'foo'},
do_not_default=set(['field2']))
self.assertIn('field1', dev_dict)
self.assertNotIn('field2', dev_dict)
self.assertNotIn('db_field1', dev_dict)
self.assertNotIn('db_field2', dev_dict)
# Passing kwargs to constructor works
dev_dict = block_device.BlockDeviceDict(field1='foo')
self.assertIn('field1', dev_dict)
self.assertIn('field2', dev_dict)
self.assertIsNone(dev_dict['field2'])
dev_dict = block_device.BlockDeviceDict({'field1': 'foo'},
field2='bar')
self.assertEqual('foo', dev_dict['field1'])
self.assertEqual('bar', dev_dict['field2'])
def create(*args, **kwargs):
self.assertFalse(kwargs['legacy_bdm'])
for expected, received in zip(bdm_expected,
kwargs['block_device_mapping']):
self.assertThat(block_device.BlockDeviceDict(expected),
matchers.DictMatches(received))
return old_create(*args, **kwargs)
def test_validate(self):
self.assertRaises(exception.InvalidBDMFormat,
block_device.BlockDeviceDict,
{'bogus_field': 'lame_val'})
lame_bdm = dict(self.new_mapping[2])
del lame_bdm['source_type']
self.assertRaises(exception.InvalidBDMFormat,
block_device.BlockDeviceDict,
lame_bdm)
lame_bdm['no_device'] = True
block_device.BlockDeviceDict(lame_bdm)
lame_dev_bdm = dict(self.new_mapping[2])
lame_dev_bdm['device_name'] = "not a valid name"
self.assertRaises(exception.InvalidBDMFormat,
block_device.BlockDeviceDict,
lame_dev_bdm)
lame_dev_bdm['device_name'] = ""
self.assertRaises(exception.InvalidBDMFormat,
block_device.BlockDeviceDict,
lame_dev_bdm)
cool_volume_size_bdm = dict(self.new_mapping[2])
cool_volume_size_bdm['volume_size'] = '42'
cool_volume_size_bdm = block_device.BlockDeviceDict(
cool_volume_size_bdm)
self.assertEqual(42, cool_volume_size_bdm['volume_size'])
lame_volume_size_bdm = dict(self.new_mapping[2])
lame_volume_size_bdm['volume_size'] = 'some_non_int_string'
self.assertRaises(exception.InvalidBDMFormat,
block_device.BlockDeviceDict,
lame_volume_size_bdm)
truthy_bdm = dict(self.new_mapping[2])
truthy_bdm['delete_on_termination'] = '1'
truthy_bdm = block_device.BlockDeviceDict(truthy_bdm)
self.assertTrue(truthy_bdm['delete_on_termination'])
verbose_bdm = dict(self.new_mapping[2])
verbose_bdm['boot_index'] = 'first'
self.assertRaises(exception.InvalidBDMFormat,
block_device.BlockDeviceDict,
verbose_bdm)
def test_init_prepend_dev_to_device_name(self):
bdm = {'id': 3, 'instance_uuid': 'fake-instance',
'device_name': 'vda',
'source_type': 'volume',
'destination_type': 'volume',
'volume_id': 'fake-volume-id-1',
'boot_index': 0}
bdm_dict = block_device.BlockDeviceDict(bdm)
self.assertEqual('/dev/vda', bdm_dict['device_name'])
bdm['device_name'] = '/dev/vdb'
bdm_dict = block_device.BlockDeviceDict(bdm)
self.assertEqual('/dev/vdb', bdm_dict['device_name'])
bdm['device_name'] = None
bdm_dict = block_device.BlockDeviceDict(bdm)
self.assertIsNone(bdm_dict['device_name'])
def test_init(self):
self.stubs.Set(block_device.BlockDeviceDict, '_fields',
set(['field1', 'field2']))
self.stubs.Set(block_device.BlockDeviceDict, '_db_only_fields',
set(['db_field1', 'db_field2']))
# Make sure db fields are not picked up if they are not
# in the original dict
dev_dict = block_device.BlockDeviceDict({
'field1': 'foo',
'field2': 'bar',
'db_field1': 'baz'
})
self.assertTrue('field1' in dev_dict)
self.assertTrue('field2' in dev_dict)
self.assertTrue('db_field1' in dev_dict)
self.assertFalse('db_field2' in dev_dict)
# Make sure all expected fields are defaulted
dev_dict = block_device.BlockDeviceDict({'field1': 'foo'})
self.assertTrue('field1' in dev_dict)
self.assertTrue('field2' in dev_dict)
self.assertTrue(dev_dict['field2'] is None)
self.assertFalse('db_field1' in dev_dict)
self.assertFalse('db_field2' in dev_dict)
# Unless they are not meant to be
dev_dict = block_device.BlockDeviceDict({'field1': 'foo'},
do_not_default=set(['field2']))
self.assertTrue('field1' in dev_dict)
self.assertFalse('field2' in dev_dict)
self.assertFalse('db_field1' in dev_dict)
self.assertFalse('db_field2' in dev_dict)
# Assert basic validation works
# NOTE (ndipanov): Move to separate test once we have
# more complex validations in place
self.assertRaises(exception.InvalidBDMFormat,
block_device.BlockDeviceDict, {
'field1': 'foo',
'bogus_field': 'lame_val'
})
def test_init_boolify_delete_on_termination(self):
# Make sure that when delete_on_termination is not passed it's
# still set to False and not None
bdm = {'id': 3, 'instance_uuid': 'fake-instance',
'device_name': 'vda',
'source_type': 'volume',
'destination_type': 'volume',
'volume_id': 'fake-volume-id-1',
'boot_index': 0}
bdm_dict = block_device.BlockDeviceDict(bdm)
self.assertFalse(bdm_dict['delete_on_termination'])
def test_update_block_device_mapping(self):
instance_type = {'swap': 1, 'ephemeral_gb': 1}
instance = self._create_fake_instance_obj()
bdms = [block_device.BlockDeviceDict({'source_type': 'image',
'destination_type': 'local',
'image_id': 'fake-image',
'boot_index': 0})]
self.compute_api._update_block_device_mapping(
instance_type, instance.uuid, bdms)
bdms = db.block_device_mapping_get_all_by_instance(
self.context, instance['uuid'])
self.assertEqual(0, len(bdms))
def test_init(self):
def fake_validate(obj, dct):
pass
self.stubs.Set(block_device.BlockDeviceDict, '_fields',
set(['field1', 'field2']))
self.stubs.Set(block_device.BlockDeviceDict, '_db_only_fields',
set(['db_field1', 'db_field2']))
self.stubs.Set(block_device.BlockDeviceDict, '_validate',
fake_validate)
# Make sure db fields are not picked up if they are not
# in the original dict
dev_dict = block_device.BlockDeviceDict({
'field1': 'foo',
'field2': 'bar',
'db_field1': 'baz'
})
self.assertTrue('field1' in dev_dict)
self.assertTrue('field2' in dev_dict)
self.assertTrue('db_field1' in dev_dict)
self.assertFalse('db_field2' in dev_dict)
# Make sure all expected fields are defaulted
dev_dict = block_device.BlockDeviceDict({'field1': 'foo'})
self.assertTrue('field1' in dev_dict)
self.assertTrue('field2' in dev_dict)
self.assertTrue(dev_dict['field2'] is None)
self.assertFalse('db_field1' in dev_dict)
self.assertFalse('db_field2' in dev_dict)
# Unless they are not meant to be
dev_dict = block_device.BlockDeviceDict({'field1': 'foo'},
do_not_default=set(['field2']))
self.assertTrue('field1' in dev_dict)
self.assertFalse('field2' in dev_dict)
self.assertFalse('db_field1' in dev_dict)
self.assertFalse('db_field2' in dev_dict)
def __init__(self, bdm):
# TODO(ndipanov): Remove this check when we have all the rpc methods
# use objects for block devices.
if isinstance(bdm, obj_base.NovaObject):
self.__dict__['_bdm_obj'] = bdm
else:
self.__dict__['_bdm_obj'] = objects.BlockDeviceMapping()
self._bdm_obj.update(block_device.BlockDeviceDict(bdm))
self._bdm_obj.obj_reset_changes()
if self._bdm_obj.no_device:
raise _NotTransformable()
self.update({field: None for field in self._fields})
self._transform()
def _fake_bdm(volume_id, target_lun):
connection_info = {'driver_volume_type': 'fibre_channel',
'data': {'volume_id': volume_id,
'target_lun': target_lun,
'initiator_target_map':
{'21000024F5': ['50050768']}}}
mapping_dict = {'source_type': 'volume', 'volume_id': volume_id,
'destination_type': 'volume',
'connection_info':
jsonutils.dumps(connection_info),
}
bdm_dict = nova_block_device.BlockDeviceDict(mapping_dict)
bdm_obj = bdmobj.BlockDeviceMapping(**bdm_dict)
return nova_virt_bdm.DriverVolumeBlockDevice(bdm_obj)
def test_from_api_valid_source_to_local_mapping_with_string_bi(self):
api_dict = {'id': 1,
'source_type': 'image',
'destination_type': 'local',
'volume_id': 'fake-volume-id-1',
'uuid': 1,
'boot_index': '0'}
retexp = block_device.BlockDeviceDict(
{'id': 1,
'source_type': 'image',
'image_id': 1,
'destination_type': 'local',
'volume_id': 'fake-volume-id-1',
'boot_index': 0})
self.assertEqual(retexp,
block_device.BlockDeviceDict.from_api(api_dict, True))
from nova import context
from nova import objects
from nova.objects import block_device as block_device_obj
from nova import test
from nova.tests.unit import fake_instance
from nova.virt import imagecache
CONF = cfg.CONF
swap_bdm_128 = [
block_device.BlockDeviceDict({
'id': 1,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sdb1',
'source_type': 'blank',
'destination_type': 'local',
'delete_on_termination': True,
'guest_format': 'swap',
'disk_bus': 'scsi',
'volume_size': 128,
'boot_index': -1
})
]
swap_bdm_256 = [
block_device.BlockDeviceDict({
'id': 1,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sdb1',
'source_type': 'blank',
'destination_type': 'local',
'delete_on_termination': True,
class TestDriverBlockDevice(test.NoDBTestCase):
driver_classes = {
'swap': driver_block_device.DriverSwapBlockDevice,
'ephemeral': driver_block_device.DriverEphemeralBlockDevice,
'volume': driver_block_device.DriverVolumeBlockDevice,
'snapshot': driver_block_device.DriverSnapshotBlockDevice,
'image': driver_block_device.DriverImageBlockDevice,
'blank': driver_block_device.DriverBlankBlockDevice
}
swap_bdm_dict = block_device.BlockDeviceDict(
{'id': 1, 'instance_uuid': uuids.instance,
'device_name': '/dev/sdb1',
'source_type': 'blank',
'destination_type': 'local',
'delete_on_termination': True,
'guest_format': 'swap',
'disk_bus': 'scsi',
'volume_size': 2,
'boot_index': -1})
swap_driver_bdm = {
'device_name': '/dev/sdb1',
'swap_size': 2,
'disk_bus': 'scsi'}
swap_legacy_driver_bdm = {
'device_name': '/dev/sdb1',
'swap_size': 2}
ephemeral_bdm_dict = block_device.BlockDeviceDict(
{'id': 2, 'instance_uuid': uuids.instance,
'device_name': '/dev/sdc1',
'source_type': 'blank',
'destination_type': 'local',
'disk_bus': 'scsi',
'device_type': 'disk',
'volume_size': 4,
'guest_format': 'ext4',
'delete_on_termination': True,
'boot_index': -1})
ephemeral_driver_bdm = {
'device_name': '/dev/sdc1',
'size': 4,
'device_type': 'disk',
'guest_format': 'ext4',
'disk_bus': 'scsi'}
ephemeral_legacy_driver_bdm = {
'device_name': '/dev/sdc1',
'size': 4,
'virtual_name': 'ephemeral0',
'num': 0}
volume_bdm_dict = block_device.BlockDeviceDict(
{'id': 3, 'instance_uuid': uuids.instance,
'device_name': '/dev/sda1',
'source_type': 'volume',
'disk_bus': 'scsi',
'device_type': 'disk',
'volume_size': 8,
'destination_type': 'volume',
'volume_id': 'fake-volume-id-1',
'guest_format': 'ext4',
'connection_info': '{"fake": "connection_info"}',
'delete_on_termination': False,
'boot_index': 0})
volume_driver_bdm = {
'mount_device': '/dev/sda1',
'connection_info': {"fake": "connection_info"},
'delete_on_termination': False,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': 'ext4',
'boot_index': 0}
volume_legacy_driver_bdm = {
'mount_device': '/dev/sda1',
'connection_info': {"fake": "connection_info"},
'delete_on_termination': False}
snapshot_bdm_dict = block_device.BlockDeviceDict(
{'id': 4, 'instance_uuid': uuids.instance,
'device_name': '/dev/sda2',
'delete_on_termination': True,
'volume_size': 3,
'disk_bus': 'scsi',
'device_type': 'disk',
'source_type': 'snapshot',
'destination_type': 'volume',
'connection_info': '{"fake": "connection_info"}',
'snapshot_id': 'fake-snapshot-id-1',
'volume_id': 'fake-volume-id-2',
'boot_index': -1})
snapshot_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {"fake": "connection_info"},
'delete_on_termination': True,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': None,
'boot_index': -1}
snapshot_legacy_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {"fake": "connection_info"},
'delete_on_termination': True}
image_bdm_dict = block_device.BlockDeviceDict(
{'id': 5, 'instance_uuid': uuids.instance,
'device_name': '/dev/sda2',
'delete_on_termination': True,
'volume_size': 1,
'disk_bus': 'scsi',
'device_type': 'disk',
'source_type': 'image',
'destination_type': 'volume',
'connection_info': '{"fake": "connection_info"}',
'image_id': 'fake-image-id-1',
'volume_id': 'fake-volume-id-2',
'boot_index': -1})
image_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {"fake": "connection_info"},
'delete_on_termination': True,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': None,
'boot_index': -1}
image_legacy_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {"fake": "connection_info"},
'delete_on_termination': True}
blank_bdm_dict = block_device.BlockDeviceDict(
{'id': 6, 'instance_uuid': uuids.instance,
'device_name': '/dev/sda2',
'delete_on_termination': True,
'volume_size': 3,
'disk_bus': 'scsi',
'device_type': 'disk',
'source_type': 'blank',
'destination_type': 'volume',
'connection_info': '{"fake": "connection_info"}',
'snapshot_id': 'fake-snapshot-id-1',
'volume_id': 'fake-volume-id-2',
'boot_index': -1})
blank_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {"fake": "connection_info"},
'delete_on_termination': True,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': None,
'boot_index': -1}
blank_legacy_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {"fake": "connection_info"},
'delete_on_termination': True}
def setUp(self):
super(TestDriverBlockDevice, self).setUp()
self.volume_api = self.mox.CreateMock(cinder.API)
self.virt_driver = self.mox.CreateMock(driver.ComputeDriver)
self.context = context.RequestContext('fake_user',
'fake_project')
# create bdm objects for testing
self.swap_bdm = fake_block_device.fake_bdm_object(
self.context, self.swap_bdm_dict)
self.ephemeral_bdm = fake_block_device.fake_bdm_object(
self.context, self.ephemeral_bdm_dict)
self.volume_bdm = fake_block_device.fake_bdm_object(
self.context, self.volume_bdm_dict)
self.snapshot_bdm = fake_block_device.fake_bdm_object(
self.context, self.snapshot_bdm_dict)
self.image_bdm = fake_block_device.fake_bdm_object(
self.context, self.image_bdm_dict)
self.blank_bdm = fake_block_device.fake_bdm_object(
self.context, self.blank_bdm_dict)
def test_no_device_raises(self):
for name, cls in self.driver_classes.items():
bdm = fake_block_device.fake_bdm_object(
self.context, {'no_device': True})
self.assertRaises(driver_block_device._NotTransformable,
cls, bdm)
def _test_driver_device(self, name):
db_bdm = getattr(self, "%s_bdm" % name)
test_bdm = self.driver_classes[name](db_bdm)
self.assertThat(test_bdm, matchers.DictMatches(
getattr(self, "%s_driver_bdm" % name)))
for k, v in db_bdm.items():
field_val = getattr(test_bdm._bdm_obj, k)
if isinstance(field_val, bool):
v = bool(v)
self.assertEqual(field_val, v)
self.assertThat(test_bdm.legacy(),
matchers.DictMatches(
getattr(self, "%s_legacy_driver_bdm" % name)))
# Test passthru attributes
for passthru in test_bdm._proxy_as_attr:
self.assertEqual(getattr(test_bdm, passthru),
getattr(test_bdm._bdm_obj, passthru))
# Make sure that all others raise _invalidType
for other_name, cls in self.driver_classes.items():
if other_name == name:
continue
self.assertRaises(driver_block_device._InvalidType,
cls,
getattr(self, '%s_bdm' % name))
# Test the save method
with mock.patch.object(test_bdm._bdm_obj, 'save') as save_mock:
for fld, alias in test_bdm._update_on_save.items():
# We can't set fake values on enums, like device_type,
# so skip those.
if not isinstance(test_bdm._bdm_obj.fields[fld],
fields.BaseEnumField):
test_bdm[alias or fld] = 'fake_changed_value'
test_bdm.save()
for fld, alias in test_bdm._update_on_save.items():
self.assertEqual(test_bdm[alias or fld],
getattr(test_bdm._bdm_obj, fld))
save_mock.assert_called_once_with()
def check_save():
self.assertEqual(set([]), test_bdm._bdm_obj.obj_what_changed())
# Test that nothing is set on the object if there are no actual changes
test_bdm._bdm_obj.obj_reset_changes()
with mock.patch.object(test_bdm._bdm_obj, 'save') as save_mock:
save_mock.side_effect = check_save
test_bdm.save()
def _test_driver_default_size(self, name):
size = 'swap_size' if name == 'swap' else 'size'
no_size_bdm = getattr(self, "%s_bdm_dict" % name).copy()
no_size_bdm['volume_size'] = None
driver_bdm = self.driver_classes[name](
fake_block_device.fake_bdm_object(self.context, no_size_bdm))
self.assertEqual(driver_bdm[size], 0)
del no_size_bdm['volume_size']
driver_bdm = self.driver_classes[name](
fake_block_device.fake_bdm_object(self.context, no_size_bdm))
self.assertEqual(driver_bdm[size], 0)
def test_driver_swap_block_device(self):
self._test_driver_device("swap")
def test_driver_swap_default_size(self):
self._test_driver_default_size('swap')
def test_driver_ephemeral_block_device(self):
self._test_driver_device("ephemeral")
def test_driver_ephemeral_default_size(self):
self._test_driver_default_size('ephemeral')
def test_driver_volume_block_device(self):
self._test_driver_device("volume")
test_bdm = self.driver_classes['volume'](
self.volume_bdm)
self.assertEqual(test_bdm['connection_info'],
jsonutils.loads(test_bdm._bdm_obj.connection_info))
self.assertEqual(test_bdm._bdm_obj.id, 3)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-1')
self.assertEqual(test_bdm.volume_size, 8)
def test_driver_snapshot_block_device(self):
self._test_driver_device("snapshot")
test_bdm = self.driver_classes['snapshot'](
self.snapshot_bdm)
self.assertEqual(test_bdm._bdm_obj.id, 4)
self.assertEqual(test_bdm.snapshot_id, 'fake-snapshot-id-1')
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
self.assertEqual(test_bdm.volume_size, 3)
def test_driver_image_block_device(self):
self._test_driver_device('image')
test_bdm = self.driver_classes['image'](
self.image_bdm)
self.assertEqual(test_bdm._bdm_obj.id, 5)
self.assertEqual(test_bdm.image_id, 'fake-image-id-1')
self.assertEqual(test_bdm.volume_size, 1)
def test_driver_image_block_device_destination_local(self):
self._test_driver_device('image')
bdm = self.image_bdm_dict.copy()
bdm['destination_type'] = 'local'
self.assertRaises(driver_block_device._InvalidType,
self.driver_classes['image'],
fake_block_device.fake_bdm_object(self.context, bdm))
def test_driver_blank_block_device(self):
self._test_driver_device('blank')
test_bdm = self.driver_classes['blank'](
self.blank_bdm)
self.assertEqual(6, test_bdm._bdm_obj.id)
self.assertEqual('fake-volume-id-2', test_bdm.volume_id)
self.assertEqual(3, test_bdm.volume_size)
def _test_call_wait_func(self, delete_on_termination, delete_fail=False):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
test_bdm['delete_on_termination'] = delete_on_termination
with mock.patch.object(self.volume_api, 'delete') as vol_delete:
wait_func = mock.MagicMock()
mock_exception = exception.VolumeNotCreated(volume_id='fake-id',
seconds=1,
attempts=1,
volume_status='error')
wait_func.side_effect = mock_exception
if delete_on_termination and delete_fail:
vol_delete.side_effect = Exception()
self.assertRaises(exception.VolumeNotCreated,
test_bdm._call_wait_func,
context=self.context,
wait_func=wait_func,
volume_api=self.volume_api,
volume_id='fake-id')
self.assertEqual(delete_on_termination, vol_delete.called)
def test_call_wait_delete_volume(self):
self._test_call_wait_func(True)
def test_call_wait_delete_volume_fail(self):
self._test_call_wait_func(True, True)
def test_call_wait_no_delete_volume(self):
self._test_call_wait_func(False)
def _test_volume_attach(self, driver_bdm, bdm_dict,
fake_volume, check_attach=True,
fail_check_attach=False, driver_attach=False,
fail_driver_attach=False, volume_attach=True,
fail_volume_attach=False, access_mode='rw',
availability_zone=None):
elevated_context = self.context.elevated()
self.stubs.Set(self.context, 'elevated',
lambda: elevated_context)
self.mox.StubOutWithMock(driver_bdm._bdm_obj, 'save')
self.mox.StubOutWithMock(encryptors, 'get_encryption_metadata')
instance_detail = {'id': '123', 'uuid': uuids.uuid,
'availability_zone': availability_zone}
instance = fake_instance.fake_instance_obj(self.context,
**instance_detail)
connector = {'ip': 'fake_ip', 'host': 'fake_host'}
connection_info = {'data': {'access_mode': access_mode}}
expected_conn_info = {'data': {'access_mode': access_mode},
'serial': fake_volume['id']}
enc_data = {'fake': 'enc_data'}
self.volume_api.get(self.context,
fake_volume['id']).AndReturn(fake_volume)
if check_attach:
if not fail_check_attach:
self.volume_api.check_attach(self.context, fake_volume,
instance=instance).AndReturn(None)
else:
self.volume_api.check_attach(self.context, fake_volume,
instance=instance).AndRaise(
test.TestingException)
driver_bdm._bdm_obj.save().AndReturn(None)
return instance, expected_conn_info
self.virt_driver.get_volume_connector(instance).AndReturn(connector)
self.volume_api.initialize_connection(
elevated_context, fake_volume['id'],
connector).AndReturn(connection_info)
if driver_attach:
encryptors.get_encryption_metadata(
elevated_context, self.volume_api, fake_volume['id'],
connection_info).AndReturn(enc_data)
if not fail_driver_attach:
self.virt_driver.attach_volume(
elevated_context, expected_conn_info, instance,
bdm_dict['device_name'],
disk_bus=bdm_dict['disk_bus'],
device_type=bdm_dict['device_type'],
encryption=enc_data).AndReturn(None)
else:
self.virt_driver.attach_volume(
elevated_context, expected_conn_info, instance,
bdm_dict['device_name'],
disk_bus=bdm_dict['disk_bus'],
device_type=bdm_dict['device_type'],
encryption=enc_data).AndRaise(test.TestingException)
self.volume_api.terminate_connection(
elevated_context, fake_volume['id'],
connector).AndReturn(None)
driver_bdm._bdm_obj.save().AndReturn(None)
return instance, expected_conn_info
if volume_attach:
driver_bdm._bdm_obj.save().AndReturn(None)
if not fail_volume_attach:
self.volume_api.attach(elevated_context, fake_volume['id'],
uuids.uuid, bdm_dict['device_name'],
mode=access_mode).AndReturn(None)
else:
self.volume_api.attach(elevated_context, fake_volume['id'],
uuids.uuid, bdm_dict['device_name'],
mode=access_mode).AndRaise(
test.TestingException)
if driver_attach:
self.virt_driver.detach_volume(
expected_conn_info, instance,
bdm_dict['device_name'],
encryption=enc_data).AndReturn(None)
self.volume_api.terminate_connection(
elevated_context, fake_volume['id'],
connector).AndReturn(None)
self.volume_api.detach(elevated_context,
fake_volume['id']).AndReturn(None)
driver_bdm._bdm_obj.save().AndReturn(None)
return instance, expected_conn_info
def test_volume_attach(self):
test_bdm = self.driver_classes['volume'](
self.volume_bdm)
volume = {'id': 'fake-volume-id-1',
'attach_status': 'detached'}
instance, expected_conn_info = self._test_volume_attach(
test_bdm, self.volume_bdm, volume)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance,
self.volume_api, self.virt_driver)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_volume_attach_ro(self):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
volume = {'id': 'fake-volume-id-1',
'attach_status': 'detached'}
instance, expected_conn_info = self._test_volume_attach(
test_bdm, self.volume_bdm, volume, access_mode='ro')
self.mox.ReplayAll()
test_bdm.attach(self.context, instance,
self.volume_api, self.virt_driver)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_volume_attach_update_size(self):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
test_bdm.volume_size = None
volume = {'id': 'fake-volume-id-1',
'attach_status': 'detached',
'size': 42}
instance, expected_conn_info = self._test_volume_attach(
test_bdm, self.volume_bdm, volume)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance,
self.volume_api, self.virt_driver)
self.assertEqual(expected_conn_info, test_bdm['connection_info'])
self.assertEqual(42, test_bdm.volume_size)
def test_volume_attach_check_attach_fails(self):
test_bdm = self.driver_classes['volume'](
self.volume_bdm)
volume = {'id': 'fake-volume-id-1'}
instance, _ = self._test_volume_attach(
test_bdm, self.volume_bdm, volume, fail_check_attach=True)
self.mox.ReplayAll()
self.assertRaises(test.TestingException, test_bdm.attach, self.context,
instance, self.volume_api, self.virt_driver)
def test_volume_no_volume_attach(self):
test_bdm = self.driver_classes['volume'](
self.volume_bdm)
volume = {'id': 'fake-volume-id-1',
'attach_status': 'detached'}
instance, expected_conn_info = self._test_volume_attach(
test_bdm, self.volume_bdm, volume, check_attach=False,
driver_attach=False)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance,
self.volume_api, self.virt_driver,
do_check_attach=False, do_driver_attach=False)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_volume_attach_no_check_driver_attach(self):
test_bdm = self.driver_classes['volume'](
self.volume_bdm)
volume = {'id': 'fake-volume-id-1',
'attach_status': 'detached'}
instance, expected_conn_info = self._test_volume_attach(
test_bdm, self.volume_bdm, volume, check_attach=False,
driver_attach=True)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance,
self.volume_api, self.virt_driver,
do_check_attach=False, do_driver_attach=True)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_volume_attach_driver_attach_fails(self):
test_bdm = self.driver_classes['volume'](
self.volume_bdm)
volume = {'id': 'fake-volume-id-1'}
instance, _ = self._test_volume_attach(
test_bdm, self.volume_bdm, volume, driver_attach=True,
fail_driver_attach=True)
self.mox.ReplayAll()
self.assertRaises(test.TestingException, test_bdm.attach, self.context,
instance, self.volume_api, self.virt_driver,
do_driver_attach=True)
def test_volume_attach_volume_attach_fails(self):
test_bdm = self.driver_classes['volume'](
self.volume_bdm)
volume = {'id': 'fake-volume-id-1',
'attach_status': 'detached'}
instance, _ = self._test_volume_attach(
test_bdm, self.volume_bdm, volume, driver_attach=True,
fail_volume_attach=True)
self.mox.ReplayAll()
self.assertRaises(test.TestingException, test_bdm.attach, self.context,
instance, self.volume_api, self.virt_driver,
do_driver_attach=True)
def test_volume_attach_no_driver_attach_volume_attach_fails(self):
test_bdm = self.driver_classes['volume'](
self.volume_bdm)
volume = {'id': 'fake-volume-id-1',
'attach_status': 'detached'}
instance, _ = self._test_volume_attach(
test_bdm, self.volume_bdm, volume, fail_volume_attach=True)
self.mox.ReplayAll()
self.assertRaises(test.TestingException, test_bdm.attach, self.context,
instance, self.volume_api, self.virt_driver,
do_driver_attach=False)
def test_refresh_connection(self):
test_bdm = self.driver_classes['snapshot'](
self.snapshot_bdm)
instance = {'id': 'fake_id', 'uuid': uuids.uuid}
connector = {'ip': 'fake_ip', 'host': 'fake_host'}
connection_info = {'data': {'multipath_id': 'fake_multipath_id'}}
expected_conn_info = {'data': {'multipath_id': 'fake_multipath_id'},
'serial': 'fake-volume-id-2'}
self.mox.StubOutWithMock(test_bdm._bdm_obj, 'save')
self.virt_driver.get_volume_connector(instance).AndReturn(connector)
self.volume_api.initialize_connection(
self.context, test_bdm.volume_id,
connector).AndReturn(connection_info)
test_bdm._bdm_obj.save().AndReturn(None)
self.mox.ReplayAll()
test_bdm.refresh_connection_info(self.context, instance,
self.volume_api, self.virt_driver)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_snapshot_attach_no_volume(self):
no_volume_snapshot = self.snapshot_bdm_dict.copy()
no_volume_snapshot['volume_id'] = None
test_bdm = self.driver_classes['snapshot'](
fake_block_device.fake_bdm_object(
self.context, no_volume_snapshot))
snapshot = {'id': 'fake-volume-id-1',
'attach_status': 'detached'}
volume = {'id': 'fake-volume-id-2',
'attach_status': 'detached'}
wait_func = self.mox.CreateMockAnything()
self.volume_api.get_snapshot(self.context,
'fake-snapshot-id-1').AndReturn(snapshot)
self.volume_api.create(self.context, 3, '', '', snapshot,
availability_zone=None).AndReturn(volume)
wait_func(self.context, 'fake-volume-id-2').AndReturn(None)
instance, expected_conn_info = self._test_volume_attach(
test_bdm, no_volume_snapshot, volume)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, wait_func)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_snapshot_attach_no_volume_cinder_cross_az_attach_false(self):
# Tests that the volume created from the snapshot has the same AZ as
# the instance.
self.flags(cross_az_attach=False, group='cinder')
no_volume_snapshot = self.snapshot_bdm_dict.copy()
no_volume_snapshot['volume_id'] = None
test_bdm = self.driver_classes['snapshot'](
fake_block_device.fake_bdm_object(
self.context, no_volume_snapshot))
snapshot = {'id': 'fake-volume-id-1',
'attach_status': 'detached'}
volume = {'id': 'fake-volume-id-2',
'attach_status': 'detached'}
wait_func = self.mox.CreateMockAnything()
self.volume_api.get_snapshot(self.context,
'fake-snapshot-id-1').AndReturn(snapshot)
self.volume_api.create(self.context, 3, '', '', snapshot,
availability_zone='test-az').AndReturn(volume)
wait_func(self.context, 'fake-volume-id-2').AndReturn(None)
instance, expected_conn_info = self._test_volume_attach(
test_bdm, no_volume_snapshot, volume,
availability_zone='test-az')
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, wait_func)
self.assertEqual('fake-volume-id-2', test_bdm.volume_id)
def test_snapshot_attach_fail_volume(self):
fail_volume_snapshot = self.snapshot_bdm_dict.copy()
fail_volume_snapshot['volume_id'] = None
test_bdm = self.driver_classes['snapshot'](
fake_block_device.fake_bdm_object(
self.context, fail_volume_snapshot))
snapshot = {'id': 'fake-volume-id-1',
'attach_status': 'detached'}
volume = {'id': 'fake-volume-id-2',
'attach_status': 'detached'}
instance = fake_instance.fake_instance_obj(mock.sentinel.ctx,
**{'uuid': uuids.uuid})
with test.nested(
mock.patch.object(self.volume_api, 'get_snapshot',
return_value=snapshot),
mock.patch.object(self.volume_api, 'create', return_value=volume),
mock.patch.object(self.volume_api, 'delete'),
) as (vol_get_snap, vol_create, vol_delete):
wait_func = mock.MagicMock()
mock_exception = exception.VolumeNotCreated(volume_id=volume['id'],
seconds=1,
attempts=1,
volume_status='error')
wait_func.side_effect = mock_exception
self.assertRaises(exception.VolumeNotCreated,
test_bdm.attach, context=self.context,
instance=instance,
volume_api=self.volume_api,
virt_driver=self.virt_driver,
wait_func=wait_func)
vol_get_snap.assert_called_once_with(
self.context, 'fake-snapshot-id-1')
vol_create.assert_called_once_with(
self.context, 3, '', '', snapshot, availability_zone=None)
vol_delete.assert_called_once_with(self.context, volume['id'])
def test_snapshot_attach_volume(self):
test_bdm = self.driver_classes['snapshot'](
self.snapshot_bdm)
instance = {'id': 'fake_id', 'uuid': uuids.uuid}
volume_class = self.driver_classes['volume']
self.mox.StubOutWithMock(volume_class, 'attach')
# Make sure theses are not called
self.mox.StubOutWithMock(self.volume_api, 'get_snapshot')
self.mox.StubOutWithMock(self.volume_api, 'create')
volume_class.attach(self.context, instance, self.volume_api,
self.virt_driver, do_check_attach=True
).AndReturn(None)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_image_attach_no_volume(self):
no_volume_image = self.image_bdm_dict.copy()
no_volume_image['volume_id'] = None
test_bdm = self.driver_classes['image'](
fake_block_device.fake_bdm_object(
self.context, no_volume_image))
image = {'id': 'fake-image-id-1'}
volume = {'id': 'fake-volume-id-2',
'attach_status': 'detached'}
wait_func = self.mox.CreateMockAnything()
self.volume_api.create(self.context, 1, '', '', image_id=image['id'],
availability_zone=None).AndReturn(volume)
wait_func(self.context, 'fake-volume-id-2').AndReturn(None)
instance, expected_conn_info = self._test_volume_attach(
test_bdm, no_volume_image, volume)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, wait_func)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_image_attach_no_volume_cinder_cross_az_attach_false(self):
# Tests that the volume created from the image has the same AZ as the
# instance.
self.flags(cross_az_attach=False, group='cinder')
no_volume_image = self.image_bdm_dict.copy()
no_volume_image['volume_id'] = None
test_bdm = self.driver_classes['image'](
fake_block_device.fake_bdm_object(
self.context, no_volume_image))
image = {'id': 'fake-image-id-1'}
volume = {'id': 'fake-volume-id-2',
'attach_status': 'detached'}
wait_func = self.mox.CreateMockAnything()
self.volume_api.create(self.context, 1, '', '', image_id=image['id'],
availability_zone='test-az').AndReturn(volume)
wait_func(self.context, 'fake-volume-id-2').AndReturn(None)
instance, expected_conn_info = self._test_volume_attach(
test_bdm, no_volume_image, volume,
availability_zone='test-az')
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, wait_func)
self.assertEqual('fake-volume-id-2', test_bdm.volume_id)
def test_image_attach_fail_volume(self):
fail_volume_image = self.image_bdm_dict.copy()
fail_volume_image['volume_id'] = None
test_bdm = self.driver_classes['image'](
fake_block_device.fake_bdm_object(
self.context, fail_volume_image))
image = {'id': 'fake-image-id-1'}
volume = {'id': 'fake-volume-id-2',
'attach_status': 'detached'}
instance = fake_instance.fake_instance_obj(mock.sentinel.ctx,
**{'uuid': uuids.uuid})
with test.nested(
mock.patch.object(self.volume_api, 'create', return_value=volume),
mock.patch.object(self.volume_api, 'delete'),
) as (vol_create, vol_delete):
wait_func = mock.MagicMock()
mock_exception = exception.VolumeNotCreated(volume_id=volume['id'],
seconds=1,
attempts=1,
volume_status='error')
wait_func.side_effect = mock_exception
self.assertRaises(exception.VolumeNotCreated,
test_bdm.attach, context=self.context,
instance=instance,
volume_api=self.volume_api,
virt_driver=self.virt_driver,
wait_func=wait_func)
vol_create.assert_called_once_with(
self.context, 1, '', '', image_id=image['id'],
availability_zone=None)
vol_delete.assert_called_once_with(self.context, volume['id'])
def test_image_attach_volume(self):
test_bdm = self.driver_classes['image'](
self.image_bdm)
instance = {'id': 'fake_id', 'uuid': uuids.uuid}
volume_class = self.driver_classes['volume']
self.mox.StubOutWithMock(volume_class, 'attach')
# Make sure theses are not called
self.mox.StubOutWithMock(self.volume_api, 'get_snapshot')
self.mox.StubOutWithMock(self.volume_api, 'create')
volume_class.attach(self.context, instance, self.volume_api,
self.virt_driver, do_check_attach=True
).AndReturn(None)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_blank_attach_fail_volume(self):
no_blank_volume = self.blank_bdm_dict.copy()
no_blank_volume['volume_id'] = None
test_bdm = self.driver_classes['blank'](
fake_block_device.fake_bdm_object(
self.context, no_blank_volume))
instance = fake_instance.fake_instance_obj(mock.sentinel.ctx,
**{'uuid': uuids.uuid})
volume = {'id': 'fake-volume-id-2',
'display_name': '%s-blank-vol' % uuids.uuid}
with test.nested(
mock.patch.object(self.volume_api, 'create', return_value=volume),
mock.patch.object(self.volume_api, 'delete'),
) as (vol_create, vol_delete):
wait_func = mock.MagicMock()
mock_exception = exception.VolumeNotCreated(volume_id=volume['id'],
seconds=1,
attempts=1,
volume_status='error')
wait_func.side_effect = mock_exception
self.assertRaises(exception.VolumeNotCreated,
test_bdm.attach, context=self.context,
instance=instance,
volume_api=self.volume_api,
virt_driver=self.virt_driver,
wait_func=wait_func)
vol_create.assert_called_once_with(
self.context, test_bdm.volume_size,
'%s-blank-vol' % uuids.uuid,
'', availability_zone=None)
vol_delete.assert_called_once_with(
self.context, volume['id'])
def test_blank_attach_volume(self):
no_blank_volume = self.blank_bdm_dict.copy()
no_blank_volume['volume_id'] = None
test_bdm = self.driver_classes['blank'](
fake_block_device.fake_bdm_object(
self.context, no_blank_volume))
instance = fake_instance.fake_instance_obj(mock.sentinel.ctx,
**{'uuid': uuids.uuid})
volume_class = self.driver_classes['volume']
volume = {'id': 'fake-volume-id-2',
'display_name': '%s-blank-vol' % uuids.uuid}
with test.nested(
mock.patch.object(self.volume_api, 'create', return_value=volume),
mock.patch.object(volume_class, 'attach')
) as (vol_create, vol_attach):
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
vol_create.assert_called_once_with(
self.context, test_bdm.volume_size,
'%s-blank-vol' % uuids.uuid,
'', availability_zone=None)
vol_attach.assert_called_once_with(self.context, instance,
self.volume_api,
self.virt_driver,
do_check_attach=True)
self.assertEqual('fake-volume-id-2', test_bdm.volume_id)
def test_blank_attach_volume_cinder_cross_az_attach_false(self):
# Tests that the blank volume created is in the same availability zone
# as the instance.
self.flags(cross_az_attach=False, group='cinder')
no_blank_volume = self.blank_bdm_dict.copy()
no_blank_volume['volume_id'] = None
test_bdm = self.driver_classes['blank'](
fake_block_device.fake_bdm_object(
self.context, no_blank_volume))
updates = {'uuid': uuids.uuid, 'availability_zone': 'test-az'}
instance = fake_instance.fake_instance_obj(mock.sentinel.ctx,
**updates)
volume_class = self.driver_classes['volume']
volume = {'id': 'fake-volume-id-2',
'display_name': '%s-blank-vol' % uuids.uuid}
with mock.patch.object(self.volume_api, 'create',
return_value=volume) as vol_create:
with mock.patch.object(volume_class, 'attach') as vol_attach:
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
vol_create.assert_called_once_with(
self.context, test_bdm.volume_size,
'%s-blank-vol' % uuids.uuid,
'', availability_zone='test-az')
vol_attach.assert_called_once_with(self.context, instance,
self.volume_api,
self.virt_driver,
do_check_attach=True)
self.assertEqual('fake-volume-id-2', test_bdm.volume_id)
def test_convert_block_devices(self):
bdms = objects.BlockDeviceMappingList(
objects=[self.volume_bdm, self.ephemeral_bdm])
converted = driver_block_device._convert_block_devices(
self.driver_classes['volume'], bdms)
self.assertEqual(converted, [self.volume_driver_bdm])
def test_convert_all_volumes(self):
converted = driver_block_device.convert_all_volumes()
self.assertEqual([], converted)
converted = driver_block_device.convert_all_volumes(
self.volume_bdm, self.ephemeral_bdm, self.image_bdm,
self.blank_bdm, self.snapshot_bdm)
self.assertEqual(converted, [self.volume_driver_bdm,
self.image_driver_bdm,
self.blank_driver_bdm,
self.snapshot_driver_bdm])
def test_convert_volume(self):
self.assertIsNone(driver_block_device.convert_volume(self.swap_bdm))
self.assertEqual(self.volume_driver_bdm,
driver_block_device.convert_volume(self.volume_bdm))
self.assertEqual(self.snapshot_driver_bdm,
driver_block_device.convert_volume(self.snapshot_bdm))
def test_legacy_block_devices(self):
test_snapshot = self.driver_classes['snapshot'](
self.snapshot_bdm)
block_device_mapping = [test_snapshot, test_snapshot]
legacy_bdm = driver_block_device.legacy_block_devices(
block_device_mapping)
self.assertEqual(legacy_bdm, [self.snapshot_legacy_driver_bdm,
self.snapshot_legacy_driver_bdm])
# Test that the ephemerals work as expected
test_ephemerals = [self.driver_classes['ephemeral'](
self.ephemeral_bdm) for _ in range(2)]
expected = [self.ephemeral_legacy_driver_bdm.copy()
for _ in range(2)]
expected[0]['virtual_name'] = 'ephemeral0'
expected[0]['num'] = 0
expected[1]['virtual_name'] = 'ephemeral1'
expected[1]['num'] = 1
legacy_ephemerals = driver_block_device.legacy_block_devices(
test_ephemerals)
self.assertEqual(expected, legacy_ephemerals)
def test_get_swap(self):
swap = [self.swap_driver_bdm]
legacy_swap = [self.swap_legacy_driver_bdm]
no_swap = [self.volume_driver_bdm]
self.assertEqual(swap[0], driver_block_device.get_swap(swap))
self.assertEqual(legacy_swap[0],
driver_block_device.get_swap(legacy_swap))
self.assertIsNone(driver_block_device.get_swap(no_swap))
self.assertIsNone(driver_block_device.get_swap([]))
def test_is_implemented(self):
for bdm in (self.image_bdm, self.volume_bdm, self.swap_bdm,
self.ephemeral_bdm, self.snapshot_bdm):
self.assertTrue(driver_block_device.is_implemented(bdm))
local_image = self.image_bdm_dict.copy()
local_image['destination_type'] = 'local'
self.assertFalse(driver_block_device.is_implemented(
fake_block_device.fake_bdm_object(self.context, local_image)))
def test_is_block_device_mapping(self):
test_swap = self.driver_classes['swap'](self.swap_bdm)
test_ephemeral = self.driver_classes['ephemeral'](self.ephemeral_bdm)
test_image = self.driver_classes['image'](self.image_bdm)
test_snapshot = self.driver_classes['snapshot'](self.snapshot_bdm)
test_volume = self.driver_classes['volume'](self.volume_bdm)
test_blank = self.driver_classes['blank'](self.blank_bdm)
for bdm in (test_image, test_snapshot, test_volume, test_blank):
self.assertTrue(driver_block_device.is_block_device_mapping(
bdm._bdm_obj))
for bdm in (test_swap, test_ephemeral):
self.assertFalse(driver_block_device.is_block_device_mapping(
bdm._bdm_obj))
def test_get_volume_create_az_cinder_cross_az_attach_true(self):
# Tests that we get None back if cinder.cross_az_attach=True even if
# the instance has an AZ assigned. Note that since cross_az_attach
# defaults to True we don't need to set a flag explicitly for the test.
updates = {'availability_zone': 'test-az'}
instance = fake_instance.fake_instance_obj(self.context, **updates)
self.assertIsNone(
driver_block_device._get_volume_create_az_value(instance))
def test_refresh_conn_infos(self):
# Only DriverVolumeBlockDevice derived devices should refresh their
# connection_info during a refresh_conn_infos call.
test_volume = mock.MagicMock(
spec=driver_block_device.DriverVolumeBlockDevice)
test_image = mock.MagicMock(
spec=driver_block_device.DriverImageBlockDevice)
test_snapshot = mock.MagicMock(
spec=driver_block_device.DriverSnapshotBlockDevice)
test_blank = mock.MagicMock(
spec=driver_block_device.DriverBlankBlockDevice)
test_eph = mock.MagicMock(
spec=driver_block_device.DriverEphemeralBlockDevice)
test_swap = mock.MagicMock(
spec=driver_block_device.DriverSwapBlockDevice)
block_device_mapping = [test_volume, test_image, test_eph,
test_snapshot, test_swap, test_blank]
driver_block_device.refresh_conn_infos(block_device_mapping,
mock.sentinel.refresh_context,
mock.sentinel.refresh_instance,
mock.sentinel.refresh_vol_api,
mock.sentinel.refresh_virt_drv)
for test_mock in [test_volume, test_image, test_snapshot, test_blank]:
test_mock.refresh_connection_info.assert_called_once_with(
mock.sentinel.refresh_context,
mock.sentinel.refresh_instance,
mock.sentinel.refresh_vol_api,
mock.sentinel.refresh_virt_drv)
# NOTE(lyarwood): Can't think of a better way of testing this as we
# can't assert_not_called if the method isn't in the spec.
self.assertFalse(hasattr(test_eph, 'refresh_connection_info'))
self.assertFalse(hasattr(test_swap, 'refresh_connection_info'))
def create(*args, **kwargs):
self.assertThat(
block_device.BlockDeviceDict(self.bdm[0]),
matchers.DictMatches(kwargs['block_device_mapping'][0]))
return old_create(*args, **kwargs)
class TestDriverBlockDevice(test.NoDBTestCase):
driver_classes = {
'swap': driver_block_device.DriverSwapBlockDevice,
'ephemeral': driver_block_device.DriverEphemeralBlockDevice,
'volume': driver_block_device.DriverVolumeBlockDevice,
'snapshot': driver_block_device.DriverSnapshotBlockDevice,
'image': driver_block_device.DriverImageBlockDevice,
'blank': driver_block_device.DriverBlankBlockDevice
}
swap_bdm = block_device.BlockDeviceDict({
'id': 1,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sdb1',
'source_type': 'blank',
'destination_type': 'local',
'delete_on_termination': True,
'guest_format': 'swap',
'disk_bus': 'scsi',
'volume_size': 2,
'boot_index': -1
})
swap_driver_bdm = {
'device_name': '/dev/sdb1',
'swap_size': 2,
'disk_bus': 'scsi'
}
swap_legacy_driver_bdm = {'device_name': '/dev/sdb1', 'swap_size': 2}
ephemeral_bdm = block_device.BlockDeviceDict({
'id': 2,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sdc1',
'source_type': 'blank',
'destination_type': 'local',
'disk_bus': 'scsi',
'device_type': 'disk',
'volume_size': 4,
'guest_format': 'ext4',
'delete_on_termination': True,
'boot_index': -1
})
ephemeral_driver_bdm = {
'device_name': '/dev/sdc1',
'size': 4,
'device_type': 'disk',
'guest_format': 'ext4',
'disk_bus': 'scsi'
}
ephemeral_legacy_driver_bdm = {
'device_name': '/dev/sdc1',
'size': 4,
'virtual_name': 'ephemeral0',
'num': 0
}
volume_bdm = block_device.BlockDeviceDict({
'id': 3,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sda1',
'source_type': 'volume',
'disk_bus': 'scsi',
'device_type': 'disk',
'volume_size': 8,
'destination_type': 'volume',
'volume_id': 'fake-volume-id-1',
'guest_format': 'ext4',
'connection_info': '{"fake": "connection_info"}',
'delete_on_termination': False,
'boot_index': 0
})
volume_driver_bdm = {
'mount_device': '/dev/sda1',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': False,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': 'ext4',
'boot_index': 0
}
volume_legacy_driver_bdm = {
'mount_device': '/dev/sda1',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': False
}
snapshot_bdm = block_device.BlockDeviceDict({
'id': 4,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sda2',
'delete_on_termination': True,
'volume_size': 3,
'disk_bus': 'scsi',
'device_type': 'disk',
'source_type': 'snapshot',
'destination_type': 'volume',
'connection_info': '{"fake": "connection_info"}',
'snapshot_id': 'fake-snapshot-id-1',
'volume_id': 'fake-volume-id-2',
'boot_index': -1
})
snapshot_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': None,
'boot_index': -1
}
snapshot_legacy_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True
}
image_bdm = block_device.BlockDeviceDict({
'id': 5,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sda2',
'delete_on_termination': True,
'volume_size': 1,
'disk_bus': 'scsi',
'device_type': 'disk',
'source_type': 'image',
'destination_type': 'volume',
'connection_info': '{"fake": "connection_info"}',
'image_id': 'fake-image-id-1',
'volume_id': 'fake-volume-id-2',
'boot_index': -1
})
image_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': None,
'boot_index': -1
}
image_legacy_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True
}
blank_bdm = block_device.BlockDeviceDict({
'id': 6,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sda2',
'delete_on_termination': True,
'volume_size': 3,
'disk_bus': 'scsi',
'device_type': 'disk',
'source_type': 'blank',
'destination_type': 'volume',
'connection_info': '{"fake": "connection_info"}',
'snapshot_id': 'fake-snapshot-id-1',
'volume_id': 'fake-volume-id-2',
'boot_index': -1
})
blank_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': None,
'boot_index': -1
}
blank_legacy_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True
}
def setUp(self):
super(TestDriverBlockDevice, self).setUp()
self.volume_api = self.mox.CreateMock(cinder.API)
self.virt_driver = self.mox.CreateMock(driver.ComputeDriver)
self.context = context.RequestContext('fake_user', 'fake_project')
def test_no_device_raises(self):
for name, cls in self.driver_classes.items():
self.assertRaises(driver_block_device._NotTransformable, cls,
{'no_device': True})
def _test_driver_device(self, name):
db_bdm = getattr(self, "%s_bdm" % name)
test_bdm = self.driver_classes[name](db_bdm)
self.assertThat(
test_bdm,
matchers.DictMatches(getattr(self, "%s_driver_bdm" % name)))
for k, v in six.iteritems(db_bdm):
field_val = getattr(test_bdm._bdm_obj, k)
if isinstance(field_val, bool):
v = bool(v)
self.assertEqual(field_val, v)
self.assertThat(
test_bdm.legacy(),
matchers.DictMatches(getattr(self, "%s_legacy_driver_bdm" % name)))
# Test passthru attributes
for passthru in test_bdm._proxy_as_attr:
self.assertEqual(getattr(test_bdm, passthru),
getattr(test_bdm._bdm_obj, passthru))
# Make sure that all others raise _invalidType
for other_name, cls in six.iteritems(self.driver_classes):
if other_name == name:
continue
self.assertRaises(driver_block_device._InvalidType, cls,
getattr(self, '%s_bdm' % name))
# Test the save method
with mock.patch.object(test_bdm._bdm_obj, 'save') as save_mock:
for fld, alias in six.iteritems(test_bdm._update_on_save):
test_bdm[alias or fld] = 'fake_changed_value'
test_bdm.save()
for fld, alias in six.iteritems(test_bdm._update_on_save):
self.assertEqual(test_bdm[alias or fld],
getattr(test_bdm._bdm_obj, fld))
save_mock.assert_called_once_with()
def check_save():
self.assertEqual(set([]), test_bdm._bdm_obj.obj_what_changed())
# Test that nothing is set on the object if there are no actual changes
test_bdm._bdm_obj.obj_reset_changes()
with mock.patch.object(test_bdm._bdm_obj, 'save') as save_mock:
save_mock.side_effect = check_save
test_bdm.save()
def _test_driver_default_size(self, name):
size = 'swap_size' if name == 'swap' else 'size'
no_size_bdm = getattr(self, "%s_bdm" % name).copy()
no_size_bdm['volume_size'] = None
driver_bdm = self.driver_classes[name](no_size_bdm)
self.assertEqual(driver_bdm[size], 0)
del no_size_bdm['volume_size']
driver_bdm = self.driver_classes[name](no_size_bdm)
self.assertEqual(driver_bdm[size], 0)
def test_driver_swap_block_device(self):
self._test_driver_device("swap")
def test_driver_swap_default_size(self):
self._test_driver_default_size('swap')
def test_driver_ephemeral_block_device(self):
self._test_driver_device("ephemeral")
def test_driver_ephemeral_default_size(self):
self._test_driver_default_size('ephemeral')
def test_driver_volume_block_device(self):
self._test_driver_device("volume")
test_bdm = self.driver_classes['volume'](self.volume_bdm)
self.assertEqual(test_bdm['connection_info'],
jsonutils.loads(test_bdm._bdm_obj.connection_info))
self.assertEqual(test_bdm._bdm_obj.id, 3)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-1')
self.assertEqual(test_bdm.volume_size, 8)
def test_driver_snapshot_block_device(self):
self._test_driver_device("snapshot")
test_bdm = self.driver_classes['snapshot'](self.snapshot_bdm)
self.assertEqual(test_bdm._bdm_obj.id, 4)
self.assertEqual(test_bdm.snapshot_id, 'fake-snapshot-id-1')
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
self.assertEqual(test_bdm.volume_size, 3)
def test_driver_image_block_device(self):
self._test_driver_device('image')
test_bdm = self.driver_classes['image'](self.image_bdm)
self.assertEqual(test_bdm._bdm_obj.id, 5)
self.assertEqual(test_bdm.image_id, 'fake-image-id-1')
self.assertEqual(test_bdm.volume_size, 1)
def test_driver_image_block_device_destination_local(self):
self._test_driver_device('image')
bdm = self.image_bdm.copy()
bdm['destination_type'] = 'local'
self.assertRaises(driver_block_device._InvalidType,
self.driver_classes['image'], bdm)
def test_driver_blank_block_device(self):
self._test_driver_device('blank')
test_bdm = self.driver_classes['blank'](self.blank_bdm)
self.assertEqual(6, test_bdm._bdm_obj.id)
self.assertEqual('fake-volume-id-2', test_bdm.volume_id)
self.assertEqual(3, test_bdm.volume_size)
def _test_volume_attach(self,
driver_bdm,
bdm_dict,
fake_volume,
check_attach=True,
fail_check_attach=False,
driver_attach=False,
fail_driver_attach=False,
volume_attach=True,
fail_volume_attach=False,
access_mode='rw'):
elevated_context = self.context.elevated()
self.stubs.Set(self.context, 'elevated', lambda: elevated_context)
self.mox.StubOutWithMock(driver_bdm._bdm_obj, 'save')
self.mox.StubOutWithMock(encryptors, 'get_encryption_metadata')
instance_detail = {'id': '123', 'uuid': 'fake_uuid'}
instance = fake_instance.fake_instance_obj(self.context,
**instance_detail)
connector = {'ip': 'fake_ip', 'host': 'fake_host'}
connection_info = {'data': {'access_mode': access_mode}}
expected_conn_info = {
'data': {
'access_mode': access_mode
},
'serial': fake_volume['id']
}
enc_data = {'fake': 'enc_data'}
self.volume_api.get(self.context,
fake_volume['id']).AndReturn(fake_volume)
if check_attach:
if not fail_check_attach:
self.volume_api.check_attach(self.context,
fake_volume,
instance=instance).AndReturn(None)
else:
self.volume_api.check_attach(self.context,
fake_volume,
instance=instance).AndRaise(
test.TestingException)
driver_bdm._bdm_obj.save().AndReturn(None)
return instance, expected_conn_info
self.virt_driver.get_volume_connector(instance).AndReturn(connector)
self.volume_api.initialize_connection(
elevated_context, fake_volume['id'],
connector).AndReturn(connection_info)
if driver_attach:
encryptors.get_encryption_metadata(
elevated_context, self.volume_api, fake_volume['id'],
connection_info).AndReturn(enc_data)
if not fail_driver_attach:
self.virt_driver.attach_volume(
elevated_context,
expected_conn_info,
instance,
bdm_dict['device_name'],
disk_bus=bdm_dict['disk_bus'],
device_type=bdm_dict['device_type'],
encryption=enc_data).AndReturn(None)
else:
self.virt_driver.attach_volume(
elevated_context,
expected_conn_info,
instance,
bdm_dict['device_name'],
disk_bus=bdm_dict['disk_bus'],
device_type=bdm_dict['device_type'],
encryption=enc_data).AndRaise(test.TestingException)
self.volume_api.terminate_connection(elevated_context,
fake_volume['id'],
connector).AndReturn(None)
driver_bdm._bdm_obj.save().AndReturn(None)
return instance, expected_conn_info
if volume_attach:
driver_bdm._bdm_obj.save().AndReturn(None)
if not fail_volume_attach:
self.volume_api.attach(elevated_context,
fake_volume['id'],
'fake_uuid',
bdm_dict['device_name'],
mode=access_mode).AndReturn(None)
else:
self.volume_api.attach(elevated_context,
fake_volume['id'],
'fake_uuid',
bdm_dict['device_name'],
mode=access_mode).AndRaise(
test.TestingException)
driver_bdm._bdm_obj.save().AndReturn(None)
return instance, expected_conn_info
def test_volume_attach(self):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
volume = {'id': 'fake-volume-id-1', 'attach_status': 'detached'}
instance, expected_conn_info = self._test_volume_attach(
test_bdm, self.volume_bdm, volume)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_volume_attach_ro(self):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
volume = {'id': 'fake-volume-id-1', 'attach_status': 'detached'}
instance, expected_conn_info = self._test_volume_attach(
test_bdm, self.volume_bdm, volume, access_mode='ro')
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_volume_attach_check_attach_fails(self):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
volume = {'id': 'fake-volume-id-1'}
instance, _ = self._test_volume_attach(test_bdm,
self.volume_bdm,
volume,
fail_check_attach=True)
self.mox.ReplayAll()
self.assertRaises(test.TestingException, test_bdm.attach, self.context,
instance, self.volume_api, self.virt_driver)
def test_volume_no_volume_attach(self):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
volume = {'id': 'fake-volume-id-1', 'attach_status': 'detached'}
instance, expected_conn_info = self._test_volume_attach(
test_bdm,
self.volume_bdm,
volume,
check_attach=False,
driver_attach=False)
self.mox.ReplayAll()
test_bdm.attach(self.context,
instance,
self.volume_api,
self.virt_driver,
do_check_attach=False,
do_driver_attach=False)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_volume_attach_no_check_driver_attach(self):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
volume = {'id': 'fake-volume-id-1', 'attach_status': 'detached'}
instance, expected_conn_info = self._test_volume_attach(
test_bdm,
self.volume_bdm,
volume,
check_attach=False,
driver_attach=True)
self.mox.ReplayAll()
test_bdm.attach(self.context,
instance,
self.volume_api,
self.virt_driver,
do_check_attach=False,
do_driver_attach=True)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_volume_attach_driver_attach_fails(self):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
volume = {'id': 'fake-volume-id-1'}
instance, _ = self._test_volume_attach(test_bdm,
self.volume_bdm,
volume,
driver_attach=True,
fail_driver_attach=True)
self.mox.ReplayAll()
self.assertRaises(test.TestingException,
test_bdm.attach,
self.context,
instance,
self.volume_api,
self.virt_driver,
do_driver_attach=True)
def test_volume_attach_volume_attach_fails(self):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
volume = {'id': 'fake-volume-id-1', 'attach_status': 'detached'}
instance, _ = self._test_volume_attach(test_bdm,
self.volume_bdm,
volume,
driver_attach=True,
fail_volume_attach=True)
self.mox.ReplayAll()
self.assertRaises(test.TestingException,
test_bdm.attach,
self.context,
instance,
self.volume_api,
self.virt_driver,
do_driver_attach=True)
def test_refresh_connection(self):
test_bdm = self.driver_classes['snapshot'](self.snapshot_bdm)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
connector = {'ip': 'fake_ip', 'host': 'fake_host'}
connection_info = {'data': {'multipath_id': 'fake_multipath_id'}}
expected_conn_info = {
'data': {
'multipath_id': 'fake_multipath_id'
},
'serial': 'fake-volume-id-2'
}
self.mox.StubOutWithMock(test_bdm._bdm_obj, 'save')
self.virt_driver.get_volume_connector(instance).AndReturn(connector)
self.volume_api.initialize_connection(
self.context, test_bdm.volume_id,
connector).AndReturn(connection_info)
test_bdm._bdm_obj.save().AndReturn(None)
self.mox.ReplayAll()
test_bdm.refresh_connection_info(self.context, instance,
self.volume_api, self.virt_driver)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_snapshot_attach_no_volume(self):
no_volume_snapshot = self.snapshot_bdm.copy()
no_volume_snapshot['volume_id'] = None
test_bdm = self.driver_classes['snapshot'](no_volume_snapshot)
snapshot = {'id': 'fake-volume-id-1', 'attach_status': 'detached'}
volume = {'id': 'fake-volume-id-2', 'attach_status': 'detached'}
wait_func = self.mox.CreateMockAnything()
self.volume_api.get_snapshot(self.context,
'fake-snapshot-id-1').AndReturn(snapshot)
self.volume_api.create(self.context,
3,
'',
'',
snapshot,
availability_zone=None).AndReturn(volume)
wait_func(self.context, 'fake-volume-id-2').AndReturn(None)
instance, expected_conn_info = self._test_volume_attach(
test_bdm, no_volume_snapshot, volume)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, wait_func)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_snapshot_attach_volume(self):
test_bdm = self.driver_classes['snapshot'](self.snapshot_bdm)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
volume_class = self.driver_classes['volume']
self.mox.StubOutWithMock(volume_class, 'attach')
# Make sure theses are not called
self.mox.StubOutWithMock(self.volume_api, 'get_snapshot')
self.mox.StubOutWithMock(self.volume_api, 'create')
volume_class.attach(self.context,
instance,
self.volume_api,
self.virt_driver,
do_check_attach=True).AndReturn(None)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_image_attach_no_volume(self):
no_volume_image = self.image_bdm.copy()
no_volume_image['volume_id'] = None
test_bdm = self.driver_classes['image'](no_volume_image)
image = {'id': 'fake-image-id-1'}
volume = {'id': 'fake-volume-id-2', 'attach_status': 'detached'}
wait_func = self.mox.CreateMockAnything()
self.volume_api.create(self.context,
1,
'',
'',
image_id=image['id'],
availability_zone=None).AndReturn(volume)
wait_func(self.context, 'fake-volume-id-2').AndReturn(None)
instance, expected_conn_info = self._test_volume_attach(
test_bdm, no_volume_image, volume)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, wait_func)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_image_attach_volume(self):
test_bdm = self.driver_classes['image'](self.image_bdm)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
volume_class = self.driver_classes['volume']
self.mox.StubOutWithMock(volume_class, 'attach')
# Make sure theses are not called
self.mox.StubOutWithMock(self.volume_api, 'get_snapshot')
self.mox.StubOutWithMock(self.volume_api, 'create')
volume_class.attach(self.context,
instance,
self.volume_api,
self.virt_driver,
do_check_attach=True).AndReturn(None)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_blank_attach_volume(self):
no_blank_volume = self.blank_bdm.copy()
no_blank_volume['volume_id'] = None
test_bdm = self.driver_classes['blank'](no_blank_volume)
instance = fake_instance.fake_instance_obj(mock.sentinel.ctx,
**{'uuid': 'fake-uuid'})
volume_class = self.driver_classes['volume']
volume = {
'id': 'fake-volume-id-2',
'display_name': 'fake-uuid-blank-vol'
}
with contextlib.nested(
mock.patch.object(self.volume_api,
'create',
return_value=volume),
mock.patch.object(volume_class,
'attach')) as (vol_create, vol_attach):
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
vol_create.assert_called_once_with(
self.context,
test_bdm.volume_size,
'fake-uuid-blank-vol',
'',
availability_zone=instance.availability_zone)
vol_attach.assert_called_once_with(self.context,
instance,
self.volume_api,
self.virt_driver,
do_check_attach=True)
self.assertEqual('fake-volume-id-2', test_bdm.volume_id)
def test_convert_block_devices(self):
converted = driver_block_device._convert_block_devices(
self.driver_classes['volume'],
[self.volume_bdm, self.ephemeral_bdm])
self.assertEqual(converted, [self.volume_driver_bdm])
def test_convert_all_volumes(self):
converted = driver_block_device.convert_all_volumes()
self.assertEqual([], converted)
converted = driver_block_device.convert_all_volumes(
self.volume_bdm, self.ephemeral_bdm, self.image_bdm,
self.blank_bdm, self.snapshot_bdm)
self.assertEqual(converted, [
self.volume_driver_bdm, self.image_driver_bdm,
self.blank_driver_bdm, self.snapshot_driver_bdm
])
def test_convert_volume(self):
self.assertIsNone(driver_block_device.convert_volume(self.swap_bdm))
self.assertEqual(self.volume_driver_bdm,
driver_block_device.convert_volume(self.volume_bdm))
self.assertEqual(self.snapshot_driver_bdm,
driver_block_device.convert_volume(self.snapshot_bdm))
def test_legacy_block_devices(self):
test_snapshot = self.driver_classes['snapshot'](self.snapshot_bdm)
block_device_mapping = [test_snapshot, test_snapshot]
legacy_bdm = driver_block_device.legacy_block_devices(
block_device_mapping)
self.assertEqual(
legacy_bdm,
[self.snapshot_legacy_driver_bdm, self.snapshot_legacy_driver_bdm])
# Test that the ephemerals work as expected
test_ephemerals = [
self.driver_classes['ephemeral'](self.ephemeral_bdm)
for _ in range(2)
]
expected = [self.ephemeral_legacy_driver_bdm.copy() for _ in range(2)]
expected[0]['virtual_name'] = 'ephemeral0'
expected[0]['num'] = 0
expected[1]['virtual_name'] = 'ephemeral1'
expected[1]['num'] = 1
legacy_ephemerals = driver_block_device.legacy_block_devices(
test_ephemerals)
self.assertEqual(expected, legacy_ephemerals)
def test_get_swap(self):
swap = [self.swap_driver_bdm]
legacy_swap = [self.swap_legacy_driver_bdm]
no_swap = [self.volume_driver_bdm]
self.assertEqual(swap[0], driver_block_device.get_swap(swap))
self.assertEqual(legacy_swap[0],
driver_block_device.get_swap(legacy_swap))
self.assertIsNone(driver_block_device.get_swap(no_swap))
self.assertIsNone(driver_block_device.get_swap([]))
def test_is_implemented(self):
for bdm in (self.image_bdm, self.volume_bdm, self.swap_bdm,
self.ephemeral_bdm, self.snapshot_bdm):
self.assertTrue(driver_block_device.is_implemented(bdm))
local_image = self.image_bdm.copy()
local_image['destination_type'] = 'local'
self.assertFalse(driver_block_device.is_implemented(local_image))
def test_is_block_device_mapping(self):
test_swap = self.driver_classes['swap'](self.swap_bdm)
test_ephemeral = self.driver_classes['ephemeral'](self.ephemeral_bdm)
test_image = self.driver_classes['image'](self.image_bdm)
test_snapshot = self.driver_classes['snapshot'](self.snapshot_bdm)
test_volume = self.driver_classes['volume'](self.volume_bdm)
test_blank = self.driver_classes['blank'](self.blank_bdm)
for bdm in (test_image, test_snapshot, test_volume, test_blank):
self.assertTrue(
driver_block_device.is_block_device_mapping(bdm._bdm_obj))
for bdm in (test_swap, test_ephemeral):
self.assertFalse(
driver_block_device.is_block_device_mapping(bdm._bdm_obj))
def get_image_mapping(self):
return block_device.BlockDeviceDict(self).get_image_mapping()
class TestDriverBlockDevice(test.NoDBTestCase):
driver_classes = {
'swap': driver_block_device.DriverSwapBlockDevice,
'ephemeral': driver_block_device.DriverEphemeralBlockDevice,
'volume': driver_block_device.DriverVolumeBlockDevice,
'snapshot': driver_block_device.DriverSnapshotBlockDevice,
'image': driver_block_device.DriverImageBlockDevice
}
swap_bdm = block_device.BlockDeviceDict({
'id': 1,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sdb1',
'source_type': 'blank',
'destination_type': 'local',
'delete_on_termination': True,
'guest_format': 'swap',
'disk_bus': 'scsi',
'volume_size': 2,
'boot_index': -1
})
swap_driver_bdm = {
'device_name': '/dev/sdb1',
'swap_size': 2,
'disk_bus': 'scsi'
}
swap_legacy_driver_bdm = {'device_name': '/dev/sdb1', 'swap_size': 2}
ephemeral_bdm = block_device.BlockDeviceDict({
'id': 2,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sdc1',
'source_type': 'blank',
'destination_type': 'local',
'disk_bus': 'scsi',
'device_type': 'disk',
'volume_size': 4,
'guest_format': 'ext4',
'delete_on_termination': True,
'boot_index': -1
})
ephemeral_driver_bdm = {
'device_name': '/dev/sdc1',
'size': 4,
'device_type': 'disk',
'guest_format': 'ext4',
'disk_bus': 'scsi'
}
ephemeral_legacy_driver_bdm = {
'device_name': '/dev/sdc1',
'size': 4,
'virtual_name': 'ephemeral0',
'num': 0
}
volume_bdm = block_device.BlockDeviceDict({
'id': 3,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sda1',
'source_type': 'volume',
'disk_bus': 'scsi',
'device_type': 'disk',
'volume_size': 8,
'destination_type': 'volume',
'volume_id': 'fake-volume-id-1',
'guest_format': 'ext4',
'connection_info': '{"fake": "connection_info"}',
'delete_on_termination': False,
'boot_index': 0
})
volume_driver_bdm = {
'mount_device': '/dev/sda1',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': False,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': 'ext4',
'boot_index': 0
}
volume_legacy_driver_bdm = {
'mount_device': '/dev/sda1',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': False
}
snapshot_bdm = block_device.BlockDeviceDict({
'id': 4,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sda2',
'delete_on_termination': True,
'volume_size': 3,
'disk_bus': 'scsi',
'device_type': 'disk',
'source_type': 'snapshot',
'destination_type': 'volume',
'connection_info': '{"fake": "connection_info"}',
'snapshot_id': 'fake-snapshot-id-1',
'volume_id': 'fake-volume-id-2',
'boot_index': -1
})
snapshot_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': None,
'boot_index': -1
}
snapshot_legacy_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True
}
image_bdm = block_device.BlockDeviceDict({
'id': 5,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sda2',
'delete_on_termination': True,
'volume_size': 1,
'disk_bus': 'scsi',
'device_type': 'disk',
'source_type': 'image',
'destination_type': 'volume',
'connection_info': '{"fake": "connection_info"}',
'image_id': 'fake-image-id-1',
'volume_id': 'fake-volume-id-2',
'boot_index': -1
})
image_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': None,
'boot_index': -1
}
image_legacy_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True
}
def setUp(self):
super(TestDriverBlockDevice, self).setUp()
self.volume_api = self.mox.CreateMock(cinder.API)
self.virt_driver = self.mox.CreateMock(driver.ComputeDriver)
self.db_api = self.mox.CreateMock(conductor_api.API)
self.context = context.RequestContext('fake_user', 'fake_project')
def test_driver_block_device_base_class(self):
self.base_class_transform_called = False
class DummyBlockDevice(driver_block_device.DriverBlockDevice):
_fields = set(['foo', 'bar'])
_legacy_fields = set(['foo', 'baz'])
def _transform(inst, bdm):
self.base_class_transform_called = True
dummy_device = DummyBlockDevice({'foo': 'foo_val', 'id': 42})
self.assertTrue(self.base_class_transform_called)
self.assertThat(dummy_device,
matchers.DictMatches({
'foo': None,
'bar': None
}))
self.assertEquals(dummy_device.id, 42)
self.assertThat(dummy_device.legacy(),
matchers.DictMatches({
'foo': None,
'baz': None
}))
self.assertRaises(driver_block_device._NotTransformable,
DummyBlockDevice, {'no_device': True})
def _test_driver_device(self, name):
test_bdm = self.driver_classes[name](getattr(self, "%s_bdm" % name))
self.assertThat(
test_bdm,
matchers.DictMatches(getattr(self, "%s_driver_bdm" % name)))
self.assertThat(
test_bdm.legacy(),
matchers.DictMatches(getattr(self, "%s_legacy_driver_bdm" % name)))
# Make sure that all others raise _invalidType
for other_name, cls in self.driver_classes.iteritems():
if other_name == name:
continue
self.assertRaises(driver_block_device._InvalidType, cls,
getattr(self, '%s_bdm' % name))
def _test_driver_default_size(self, name):
size = 'swap_size' if name == 'swap' else 'size'
no_size_bdm = getattr(self, "%s_bdm" % name).copy()
no_size_bdm['volume_size'] = None
driver_bdm = self.driver_classes[name](no_size_bdm)
self.assertEqual(driver_bdm[size], 0)
del no_size_bdm['volume_size']
driver_bdm = self.driver_classes[name](no_size_bdm)
self.assertEqual(driver_bdm[size], 0)
def test_driver_swap_block_device(self):
self._test_driver_device("swap")
def test_driver_swap_default_size(self):
self._test_driver_default_size('swap')
def test_driver_ephemeral_block_device(self):
self._test_driver_device("ephemeral")
def test_driver_ephemeral_default_size(self):
self._test_driver_default_size('ephemeral')
def test_driver_volume_block_device(self):
self._test_driver_device("volume")
test_bdm = self.driver_classes['volume'](self.volume_bdm)
self.assertEquals(test_bdm.id, 3)
self.assertEquals(test_bdm.volume_id, 'fake-volume-id-1')
self.assertEquals(test_bdm.volume_size, 8)
def test_driver_snapshot_block_device(self):
self._test_driver_device("snapshot")
test_bdm = self.driver_classes['snapshot'](self.snapshot_bdm)
self.assertEquals(test_bdm.id, 4)
self.assertEquals(test_bdm.snapshot_id, 'fake-snapshot-id-1')
self.assertEquals(test_bdm.volume_id, 'fake-volume-id-2')
self.assertEquals(test_bdm.volume_size, 3)
def test_driver_image_block_device(self):
self._test_driver_device('image')
test_bdm = self.driver_classes['image'](self.image_bdm)
self.assertEquals(test_bdm.id, 5)
self.assertEquals(test_bdm.image_id, 'fake-image-id-1')
self.assertEquals(test_bdm.volume_size, 1)
def test_driver_image_block_device_destination_local(self):
self._test_driver_device('image')
bdm = self.image_bdm.copy()
bdm['destination_type'] = 'local'
self.assertRaises(driver_block_device._InvalidType,
self.driver_classes['image'], bdm)
def test_volume_attach(self):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
elevated_context = self.context.elevated()
self.stubs.Set(self.context, 'elevated', lambda: elevated_context)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
volume = {'id': 'fake-volume-id-1'}
connector = {'ip': 'fake_ip', 'host': 'fake_host'}
connection_info = {'data': {}}
expected_conn_info = {'data': {}, 'serial': 'fake-volume-id-1'}
self.volume_api.get(self.context, 'fake-volume-id-1').AndReturn(volume)
self.volume_api.check_attach(self.context, volume,
instance=instance).AndReturn(None)
self.virt_driver.get_volume_connector(instance).AndReturn(connector)
self.volume_api.initialize_connection(
elevated_context, volume['id'],
connector).AndReturn(connection_info)
self.volume_api.attach(elevated_context, 'fake-volume-id-1',
'fake_uuid', '/dev/sda1').AndReturn(None)
self.db_api.block_device_mapping_update(
elevated_context, 3,
{'connection_info': jsonutils.dumps(expected_conn_info)})
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, self.db_api)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_refresh_connection(self):
test_bdm = self.driver_classes['snapshot'](self.snapshot_bdm)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
connector = {'ip': 'fake_ip', 'host': 'fake_host'}
connection_info = {'data': {}}
expected_conn_info = {'data': {}, 'serial': 'fake-volume-id-2'}
self.virt_driver.get_volume_connector(instance).AndReturn(connector)
self.volume_api.initialize_connection(
self.context, test_bdm.volume_id,
connector).AndReturn(connection_info)
self.db_api.block_device_mapping_update(
self.context, 4,
{'connection_info': jsonutils.dumps(expected_conn_info)})
self.mox.ReplayAll()
test_bdm.refresh_connection_info(self.context, instance,
self.volume_api, self.virt_driver,
self.db_api)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_snapshot_attach_no_volume(self):
no_volume_snapshot = self.snapshot_bdm.copy()
no_volume_snapshot['volume_id'] = None
test_bdm = self.driver_classes['snapshot'](no_volume_snapshot)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
snapshot = {'id': 'fake-snapshot-id-1'}
volume = {'id': 'fake-volume-id-2'}
wait_func = self.mox.CreateMockAnything()
volume_class = self.driver_classes['volume']
self.mox.StubOutWithMock(volume_class, 'attach')
self.volume_api.get_snapshot(self.context,
'fake-snapshot-id-1').AndReturn(snapshot)
self.volume_api.create(self.context, 3, '', '',
snapshot).AndReturn(volume)
wait_func(self.context, 'fake-volume-id-2').AndReturn(None)
self.db_api.block_device_mapping_update(self.context, 4, {
'volume_id': 'fake-volume-id-2'
}).AndReturn(None)
volume_class.attach(self.context, instance, self.volume_api,
self.virt_driver, self.db_api).AndReturn(None)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, self.db_api, wait_func)
self.assertEquals(test_bdm.volume_id, 'fake-volume-id-2')
def test_snapshot_attach_volume(self):
test_bdm = self.driver_classes['snapshot'](self.snapshot_bdm)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
volume_class = self.driver_classes['volume']
self.mox.StubOutWithMock(volume_class, 'attach')
# Make sure theses are not called
self.mox.StubOutWithMock(self.volume_api, 'get_snapshot')
self.mox.StubOutWithMock(self.volume_api, 'create')
self.mox.StubOutWithMock(self.db_api, 'block_device_mapping_update')
volume_class.attach(self.context, instance, self.volume_api,
self.virt_driver, self.db_api).AndReturn(None)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, self.db_api)
self.assertEquals(test_bdm.volume_id, 'fake-volume-id-2')
def test_image_attach_no_volume(self):
no_volume_image = self.image_bdm.copy()
no_volume_image['volume_id'] = None
test_bdm = self.driver_classes['image'](no_volume_image)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
image = {'id': 'fake-image-id-1'}
volume = {'id': 'fake-volume-id-2'}
wait_func = self.mox.CreateMockAnything()
volume_class = self.driver_classes['volume']
self.mox.StubOutWithMock(volume_class, 'attach')
self.volume_api.create(self.context, 1, '', '',
image_id=image['id']).AndReturn(volume)
wait_func(self.context, 'fake-volume-id-2').AndReturn(None)
self.db_api.block_device_mapping_update(self.context, 5, {
'volume_id': 'fake-volume-id-2'
}).AndReturn(None)
volume_class.attach(self.context, instance, self.volume_api,
self.virt_driver, self.db_api).AndReturn(None)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, self.db_api, wait_func)
self.assertEquals(test_bdm.volume_id, 'fake-volume-id-2')
def test_image_attach_volume(self):
test_bdm = self.driver_classes['image'](self.image_bdm)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
volume_class = self.driver_classes['volume']
self.mox.StubOutWithMock(volume_class, 'attach')
# Make sure theses are not called
self.mox.StubOutWithMock(self.volume_api, 'get_snapshot')
self.mox.StubOutWithMock(self.volume_api, 'create')
self.mox.StubOutWithMock(self.db_api, 'block_device_mapping_update')
volume_class.attach(self.context, instance, self.volume_api,
self.virt_driver, self.db_api).AndReturn(None)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, self.db_api)
self.assertEquals(test_bdm.volume_id, 'fake-volume-id-2')
def test_convert_block_devices(self):
converted = driver_block_device._convert_block_devices(
self.driver_classes['volume'],
[self.volume_bdm, self.ephemeral_bdm])
self.assertEquals(converted, [self.volume_driver_bdm])
def test_legacy_block_devices(self):
test_snapshot = self.driver_classes['snapshot'](self.snapshot_bdm)
block_device_mapping = [test_snapshot, test_snapshot]
legacy_bdm = driver_block_device.legacy_block_devices(
block_device_mapping)
self.assertEquals(
legacy_bdm,
[self.snapshot_legacy_driver_bdm, self.snapshot_legacy_driver_bdm])
# Test that the ephemerals work as expected
test_ephemerals = [
self.driver_classes['ephemeral'](self.ephemeral_bdm)
for _ in xrange(2)
]
expected = [self.ephemeral_legacy_driver_bdm.copy() for _ in xrange(2)]
expected[0]['virtual_name'] = 'ephemeral0'
expected[0]['num'] = 0
expected[1]['virtual_name'] = 'ephemeral1'
expected[1]['num'] = 1
legacy_ephemerals = driver_block_device.legacy_block_devices(
test_ephemerals)
self.assertEquals(expected, legacy_ephemerals)
def test_get_swap(self):
swap = [self.swap_driver_bdm]
legacy_swap = [self.swap_legacy_driver_bdm]
no_swap = [self.volume_driver_bdm]
self.assertEquals(swap[0], driver_block_device.get_swap(swap))
self.assertEquals(legacy_swap[0],
driver_block_device.get_swap(legacy_swap))
self.assertEquals(no_swap, driver_block_device.get_swap(no_swap))
self.assertIsNone(driver_block_device.get_swap([]))
def test_is_implemented(self):
for bdm in (self.image_bdm, self.volume_bdm, self.swap_bdm,
self.ephemeral_bdm, self.snapshot_bdm):
self.assertTrue(driver_block_device.is_implemented(bdm))
local_image = self.image_bdm.copy()
local_image['destination_type'] = 'local'
self.assertFalse(driver_block_device.is_implemented(local_image))
from nova.compute import vm_states
import nova.conf
from nova import context
from nova import objects
from nova.objects import block_device as block_device_obj
from nova import test
from nova.tests.unit import fake_instance
from nova.virt import imagecache
CONF = nova.conf.CONF
swap_bdm_128 = [block_device.BlockDeviceDict(
{'id': 1, 'instance_uuid': uuids.instance,
'device_name': '/dev/sdb1',
'source_type': 'blank',
'destination_type': 'local',
'delete_on_termination': True,
'guest_format': 'swap',
'disk_bus': 'scsi',
'volume_size': 128,
'boot_index': -1})]
swap_bdm_256 = [block_device.BlockDeviceDict(
{'id': 1, 'instance_uuid': uuids.instance,
'device_name': '/dev/sdb1',
'source_type': 'blank',
'destination_type': 'local',
'delete_on_termination': True,
'guest_format': 'swap',
'disk_bus': 'scsi',
'volume_size': 256,
'boot_index': -1})]
class TestDriverBlockDevice(test.NoDBTestCase):
driver_classes = {
'swap': driver_block_device.DriverSwapBlockDevice,
'ephemeral': driver_block_device.DriverEphemeralBlockDevice,
'volume': driver_block_device.DriverVolumeBlockDevice,
'snapshot': driver_block_device.DriverSnapshotBlockDevice,
'image': driver_block_device.DriverImageBlockDevice
}
swap_bdm = block_device.BlockDeviceDict({
'id': 1,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sdb1',
'source_type': 'blank',
'destination_type': 'local',
'delete_on_termination': True,
'guest_format': 'swap',
'disk_bus': 'scsi',
'volume_size': 2,
'boot_index': -1
})
swap_driver_bdm = {
'device_name': '/dev/sdb1',
'swap_size': 2,
'disk_bus': 'scsi'
}
swap_legacy_driver_bdm = {'device_name': '/dev/sdb1', 'swap_size': 2}
ephemeral_bdm = block_device.BlockDeviceDict({
'id': 2,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sdc1',
'source_type': 'blank',
'destination_type': 'local',
'disk_bus': 'scsi',
'device_type': 'disk',
'volume_size': 4,
'guest_format': 'ext4',
'delete_on_termination': True,
'boot_index': -1
})
ephemeral_driver_bdm = {
'device_name': '/dev/sdc1',
'size': 4,
'device_type': 'disk',
'guest_format': 'ext4',
'disk_bus': 'scsi'
}
ephemeral_legacy_driver_bdm = {
'device_name': '/dev/sdc1',
'size': 4,
'virtual_name': 'ephemeral0',
'num': 0
}
volume_bdm = block_device.BlockDeviceDict({
'id': 3,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sda1',
'source_type': 'volume',
'disk_bus': 'scsi',
'device_type': 'disk',
'volume_size': 8,
'destination_type': 'volume',
'volume_id': 'fake-volume-id-1',
'guest_format': 'ext4',
'connection_info': '{"fake": "connection_info"}',
'delete_on_termination': False,
'boot_index': 0
})
volume_driver_bdm = {
'mount_device': '/dev/sda1',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': False,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': 'ext4',
'boot_index': 0
}
volume_legacy_driver_bdm = {
'mount_device': '/dev/sda1',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': False
}
snapshot_bdm = block_device.BlockDeviceDict({
'id': 4,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sda2',
'delete_on_termination': True,
'volume_size': 3,
'disk_bus': 'scsi',
'device_type': 'disk',
'source_type': 'snapshot',
'destination_type': 'volume',
'connection_info': '{"fake": "connection_info"}',
'snapshot_id': 'fake-snapshot-id-1',
'volume_id': 'fake-volume-id-2',
'boot_index': -1
})
snapshot_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': None,
'boot_index': -1
}
snapshot_legacy_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True
}
image_bdm = block_device.BlockDeviceDict({
'id': 5,
'instance_uuid': 'fake-instance',
'device_name': '/dev/sda2',
'delete_on_termination': True,
'volume_size': 1,
'disk_bus': 'scsi',
'device_type': 'disk',
'source_type': 'image',
'destination_type': 'volume',
'connection_info': '{"fake": "connection_info"}',
'image_id': 'fake-image-id-1',
'volume_id': 'fake-volume-id-2',
'boot_index': -1
})
image_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True,
'disk_bus': 'scsi',
'device_type': 'disk',
'guest_format': None,
'boot_index': -1
}
image_legacy_driver_bdm = {
'mount_device': '/dev/sda2',
'connection_info': {
"fake": "connection_info"
},
'delete_on_termination': True
}
def setUp(self):
super(TestDriverBlockDevice, self).setUp()
self.volume_api = self.mox.CreateMock(cinder.API)
self.virt_driver = self.mox.CreateMock(driver.ComputeDriver)
self.context = context.RequestContext('fake_user', 'fake_project')
def test_no_device_raises(self):
for name, cls in self.driver_classes.items():
self.assertRaises(driver_block_device._NotTransformable, cls,
{'no_device': True})
def _test_driver_device(self, name):
db_bdm = getattr(self, "%s_bdm" % name)
test_bdm = self.driver_classes[name](db_bdm)
self.assertThat(
test_bdm,
matchers.DictMatches(getattr(self, "%s_driver_bdm" % name)))
for k, v in db_bdm.iteritems():
field_val = getattr(test_bdm._bdm_obj, k)
if isinstance(field_val, bool):
v = bool(v)
self.assertEqual(field_val, v)
self.assertThat(
test_bdm.legacy(),
matchers.DictMatches(getattr(self, "%s_legacy_driver_bdm" % name)))
# Test passthru attributes
for passthru in test_bdm._proxy_as_attr:
self.assertEqual(getattr(test_bdm, passthru),
getattr(test_bdm._bdm_obj, passthru))
for no_pass in set(db_bdm.keys()) - test_bdm._proxy_as_attr:
self.assertRaises(AttributeError, getattr, test_bdm, no_pass)
# Make sure that all others raise _invalidType
for other_name, cls in self.driver_classes.iteritems():
if other_name == name:
continue
self.assertRaises(driver_block_device._InvalidType, cls,
getattr(self, '%s_bdm' % name))
# Test the save method
with mock.patch.object(test_bdm._bdm_obj, 'save') as save_mock:
test_bdm.save(self.context)
for fld, alias in test_bdm._update_on_save.iteritems():
self.assertEqual(test_bdm[alias or fld],
getattr(test_bdm._bdm_obj, fld))
save_mock.assert_called_once_with(self.context)
def _test_driver_default_size(self, name):
size = 'swap_size' if name == 'swap' else 'size'
no_size_bdm = getattr(self, "%s_bdm" % name).copy()
no_size_bdm['volume_size'] = None
driver_bdm = self.driver_classes[name](no_size_bdm)
self.assertEqual(driver_bdm[size], 0)
del no_size_bdm['volume_size']
driver_bdm = self.driver_classes[name](no_size_bdm)
self.assertEqual(driver_bdm[size], 0)
def test_driver_swap_block_device(self):
self._test_driver_device("swap")
def test_driver_swap_default_size(self):
self._test_driver_default_size('swap')
def test_driver_ephemeral_block_device(self):
self._test_driver_device("ephemeral")
def test_driver_ephemeral_default_size(self):
self._test_driver_default_size('ephemeral')
def test_driver_volume_block_device(self):
self._test_driver_device("volume")
test_bdm = self.driver_classes['volume'](self.volume_bdm)
self.assertEqual(test_bdm['connection_info'],
jsonutils.loads(test_bdm._bdm_obj.connection_info))
self.assertEqual(test_bdm._bdm_obj.id, 3)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-1')
self.assertEqual(test_bdm.volume_size, 8)
def test_driver_snapshot_block_device(self):
self._test_driver_device("snapshot")
test_bdm = self.driver_classes['snapshot'](self.snapshot_bdm)
self.assertEqual(test_bdm._bdm_obj.id, 4)
self.assertEqual(test_bdm.snapshot_id, 'fake-snapshot-id-1')
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
self.assertEqual(test_bdm.volume_size, 3)
def test_driver_image_block_device(self):
self._test_driver_device('image')
test_bdm = self.driver_classes['image'](self.image_bdm)
self.assertEqual(test_bdm._bdm_obj.id, 5)
self.assertEqual(test_bdm.image_id, 'fake-image-id-1')
self.assertEqual(test_bdm.volume_size, 1)
def test_driver_image_block_device_destination_local(self):
self._test_driver_device('image')
bdm = self.image_bdm.copy()
bdm['destination_type'] = 'local'
self.assertRaises(driver_block_device._InvalidType,
self.driver_classes['image'], bdm)
def _test_volume_attach(self, driver_bdm, bdm_dict, fake_volume):
elevated_context = self.context.elevated()
self.stubs.Set(self.context, 'elevated', lambda: elevated_context)
self.mox.StubOutWithMock(driver_bdm._bdm_obj, 'save')
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
connector = {'ip': 'fake_ip', 'host': 'fake_host'}
connection_info = {'data': {}}
expected_conn_info = {'data': {}, 'serial': fake_volume['id']}
self.volume_api.get(self.context,
fake_volume['id']).AndReturn(fake_volume)
self.volume_api.check_attach(self.context,
fake_volume,
instance=instance).AndReturn(None)
self.virt_driver.get_volume_connector(instance).AndReturn(connector)
self.volume_api.initialize_connection(
elevated_context, fake_volume['id'],
connector).AndReturn(connection_info)
self.volume_api.attach(elevated_context, fake_volume['id'],
'fake_uuid',
bdm_dict['device_name']).AndReturn(None)
driver_bdm._bdm_obj.save(self.context).AndReturn(None)
return instance, expected_conn_info
def test_volume_attach(self):
test_bdm = self.driver_classes['volume'](self.volume_bdm)
volume = {'id': 'fake-volume-id-1'}
instance, expected_conn_info = self._test_volume_attach(
test_bdm, self.volume_bdm, volume)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_refresh_connection(self):
test_bdm = self.driver_classes['snapshot'](self.snapshot_bdm)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
connector = {'ip': 'fake_ip', 'host': 'fake_host'}
connection_info = {'data': {}}
expected_conn_info = {'data': {}, 'serial': 'fake-volume-id-2'}
self.mox.StubOutWithMock(test_bdm._bdm_obj, 'save')
self.virt_driver.get_volume_connector(instance).AndReturn(connector)
self.volume_api.initialize_connection(
self.context, test_bdm.volume_id,
connector).AndReturn(connection_info)
test_bdm._bdm_obj.save(self.context).AndReturn(None)
self.mox.ReplayAll()
test_bdm.refresh_connection_info(self.context, instance,
self.volume_api, self.virt_driver)
self.assertThat(test_bdm['connection_info'],
matchers.DictMatches(expected_conn_info))
def test_snapshot_attach_no_volume(self):
no_volume_snapshot = self.snapshot_bdm.copy()
no_volume_snapshot['volume_id'] = None
test_bdm = self.driver_classes['snapshot'](no_volume_snapshot)
snapshot = {'id': 'fake-snapshot-id-1'}
volume = {'id': 'fake-volume-id-2'}
wait_func = self.mox.CreateMockAnything()
self.volume_api.get_snapshot(self.context,
'fake-snapshot-id-1').AndReturn(snapshot)
self.volume_api.create(self.context, 3, '', '',
snapshot).AndReturn(volume)
wait_func(self.context, 'fake-volume-id-2').AndReturn(None)
instance, expected_conn_info = self._test_volume_attach(
test_bdm, no_volume_snapshot, volume)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, wait_func)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_snapshot_attach_volume(self):
test_bdm = self.driver_classes['snapshot'](self.snapshot_bdm)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
volume_class = self.driver_classes['volume']
self.mox.StubOutWithMock(volume_class, 'attach')
# Make sure theses are not called
self.mox.StubOutWithMock(self.volume_api, 'get_snapshot')
self.mox.StubOutWithMock(self.volume_api, 'create')
volume_class.attach(self.context, instance, self.volume_api,
self.virt_driver).AndReturn(None)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_image_attach_no_volume(self):
no_volume_image = self.image_bdm.copy()
no_volume_image['volume_id'] = None
test_bdm = self.driver_classes['image'](no_volume_image)
image = {'id': 'fake-image-id-1'}
volume = {'id': 'fake-volume-id-2'}
wait_func = self.mox.CreateMockAnything()
self.volume_api.create(self.context, 1, '', '',
image_id=image['id']).AndReturn(volume)
wait_func(self.context, 'fake-volume-id-2').AndReturn(None)
instance, expected_conn_info = self._test_volume_attach(
test_bdm, no_volume_image, volume)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver, wait_func)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_image_attach_volume(self):
test_bdm = self.driver_classes['image'](self.image_bdm)
instance = {'id': 'fake_id', 'uuid': 'fake_uuid'}
volume_class = self.driver_classes['volume']
self.mox.StubOutWithMock(volume_class, 'attach')
# Make sure theses are not called
self.mox.StubOutWithMock(self.volume_api, 'get_snapshot')
self.mox.StubOutWithMock(self.volume_api, 'create')
volume_class.attach(self.context, instance, self.volume_api,
self.virt_driver).AndReturn(None)
self.mox.ReplayAll()
test_bdm.attach(self.context, instance, self.volume_api,
self.virt_driver)
self.assertEqual(test_bdm.volume_id, 'fake-volume-id-2')
def test_convert_block_devices(self):
converted = driver_block_device._convert_block_devices(
self.driver_classes['volume'],
[self.volume_bdm, self.ephemeral_bdm])
self.assertEqual(converted, [self.volume_driver_bdm])
def test_legacy_block_devices(self):
test_snapshot = self.driver_classes['snapshot'](self.snapshot_bdm)
block_device_mapping = [test_snapshot, test_snapshot]
legacy_bdm = driver_block_device.legacy_block_devices(
block_device_mapping)
self.assertEqual(
legacy_bdm,
[self.snapshot_legacy_driver_bdm, self.snapshot_legacy_driver_bdm])
# Test that the ephemerals work as expected
test_ephemerals = [
self.driver_classes['ephemeral'](self.ephemeral_bdm)
for _ in xrange(2)
]
expected = [self.ephemeral_legacy_driver_bdm.copy() for _ in xrange(2)]
expected[0]['virtual_name'] = 'ephemeral0'
expected[0]['num'] = 0
expected[1]['virtual_name'] = 'ephemeral1'
expected[1]['num'] = 1
legacy_ephemerals = driver_block_device.legacy_block_devices(
test_ephemerals)
self.assertEqual(expected, legacy_ephemerals)
def test_get_swap(self):
swap = [self.swap_driver_bdm]
legacy_swap = [self.swap_legacy_driver_bdm]
no_swap = [self.volume_driver_bdm]
self.assertEqual(swap[0], driver_block_device.get_swap(swap))
self.assertEqual(legacy_swap[0],
driver_block_device.get_swap(legacy_swap))
self.assertEqual(no_swap, driver_block_device.get_swap(no_swap))
self.assertIsNone(driver_block_device.get_swap([]))
def test_is_implemented(self):
for bdm in (self.image_bdm, self.volume_bdm, self.swap_bdm,
self.ephemeral_bdm, self.snapshot_bdm):
self.assertTrue(driver_block_device.is_implemented(bdm))
local_image = self.image_bdm.copy()
local_image['destination_type'] = 'local'
self.assertFalse(driver_block_device.is_implemented(local_image))
