openstack
/
nova
Code Issues Proposed changes

Add instance action record for snapshot instances 

We currently don't record snapshot instance
actions. This is useful for auditing and debugging.

This patch adds instance snapshot actions.

partial-implements: blueprint fill-the-gap-for-instance-action-records

Change-Id: I9ce48e768cc67543f27a6c87c57b47501fff38c2
This commit is contained in:
Kevin_Zheng 2017-12-06 11:57:32 +08:00
parent 0aa7aafdd7
commit d0336ee172
8 changed files with 104 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
nova/cells/messaging.py
View File

@ -909,6 +909,11 @@ class _TargetedMessageMethods(_BaseMessageMethods):
instance.refresh()
instance.task_state = task_states.IMAGE_SNAPSHOT_PENDING
instance.save(expected_task_state=[None])
objects.InstanceAction.action_start(
message.ctxt, instance.uuid, instance_actions.CREATE_IMAGE,
want_result=False)
self.compute_rpcapi.snapshot_instance(message.ctxt,
instance,
image_id)

19
nova/compute/api.py
View File

@ -2658,6 +2658,9 @@ class API(base.Base):
state=state,
method='snapshot')
self._record_action_start(context, instance,
instance_actions.CREATE_IMAGE)
self.compute_rpcapi.snapshot_instance(context, instance,
image_meta['id'])
@ -2767,6 +2770,8 @@ class API(base.Base):
bdms = objects.BlockDeviceMappingList.get_by_instance_uuid(
context, instance.uuid)
@wrap_instance_event(prefix='api')
def snapshot_instance(self, context, instance, bdms):
mapping = []
for bdm in bdms:
if bdm.no_device:
@ -2779,17 +2784,25 @@ class API(base.Base):
# Linux LVM snapshot creation completes in
# short time, it doesn't matter for now.
name = _('snapshot for %s') % image_meta['name']
LOG.debug('Creating snapshot from volume %s.', volume['id'],
LOG.debug('Creating snapshot from volume %s.',
volume['id'],
instance=instance)
snapshot = self.volume_api.create_snapshot_force(
context, volume['id'], name, volume['display_description'])
mapping_dict = block_device.snapshot_from_bdm(snapshot['id'],
context, volume['id'], name,
volume['display_description'])
mapping_dict = block_device.snapshot_from_bdm(
snapshot['id'],
bdm)
mapping_dict = mapping_dict.get_image_mapping()
else:
mapping_dict = bdm.get_image_mapping()
mapping.append(mapping_dict)
return mapping
self._record_action_start(context, instance,
instance_actions.CREATE_IMAGE)
mapping = snapshot_instance(self, context, instance, bdms)
if quiesced:
self.compute_rpcapi.unquiesce_instance(context, instance, mapping)

1
nova/compute/instance_actions.py
View File

@ -69,3 +69,4 @@ SWAP_VOLUME = 'swap_volume'
LOCK = 'lock'
UNLOCK = 'unlock'
BACKUP = 'createBackup'
CREATE_IMAGE = 'createImage'

1
nova/compute/manager.py
View File

@ -3229,6 +3229,7 @@ class ComputeManager(manager.Manager):
@wrap_exception()
@reverts_task_state
@wrap_instance_event(prefix='compute')
@wrap_instance_fault
@delete_image_on_error
def snapshot_instance(self, context, image_id, instance):

8
nova/tests/unit/cells/test_cells_messaging.py
View File

@ -1343,8 +1343,9 @@ class CellsTargetedMethodsTestCase(test.NoDBTestCase):
self._test_instance_action_method('inject_network_info',
(), {}, (), {}, False)
def test_snapshot_instance(self):
inst = objects.Instance()
@mock.patch.object(objects.InstanceAction, 'action_start')
def test_snapshot_instance(self, action_start):
inst = objects.Instance(uuid=uuids.instance)
meth_cls = self.tgt_methods_cls
self.mox.StubOutWithMock(inst, 'refresh')
@ -1371,6 +1372,9 @@ class CellsTargetedMethodsTestCase(test.NoDBTestCase):
message.need_response = False
meth_cls.snapshot_instance(message, inst, image_id='image-id')
action_start.assert_called_once_with(
message.ctxt, inst.uuid, instance_actions.CREATE_IMAGE,
want_result=False)
@mock.patch.object(objects.InstanceAction, 'action_start')
def test_backup_instance(self, action_start):

7
nova/tests/unit/compute/test_compute.py
View File

@ -3392,14 +3392,17 @@ class ComputeTestCase(BaseTestCase,
fake_delete)
inst_obj = self._get_snapshotting_instance()
with mock.patch.object(compute_utils,
'EventReporter') as mock_event:
if method == 'snapshot':
self.assertRaises(test.TestingException,
self.compute.snapshot_instance,
self.context, image_id='fakesnap',
instance=inst_obj)
mock_event.assert_called_once_with(self.context,
'compute_snapshot_instance',
inst_obj.uuid)
else:
with mock.patch.object(compute_utils,
'EventReporter') as mock_event:
self.assertRaises(test.TestingException,
self.compute.backup_instance,
self.context, image_id='fakesnap',

38
nova/tests/unit/compute/test_compute_api.py
View File

@ -2594,6 +2594,8 @@ class _ComputeAPIUnitTestMixIn(object):
res = self.compute_api.snapshot(self.context, instance,
'fake-name',
extra_properties=extra_props)
mock_record.assert_called_once_with(
self.context, instance, instance_actions.CREATE_IMAGE)
else:
res = self.compute_api.backup(self.context, instance,
'fake-name',
@ -2821,10 +2823,21 @@ class _ComputeAPIUnitTestMixIn(object):
fake_unquiesce_instance)
fake_image.stub_out_image_service(self)
with test.nested(
mock.patch.object(compute_api.API, '_record_action_start'),
mock.patch.object(compute_utils, 'EventReporter')) as (
mock_record, mock_event):
# No block devices defined
self.compute_api.snapshot_volume_backed(
self.context, instance, 'test-snapshot')
mock_record.assert_called_once_with(self.context,
instance,
instance_actions.CREATE_IMAGE)
mock_event.assert_called_once_with(self.context,
'api_snapshot_instance',
instance.uuid)
bdm = fake_block_device.FakeDbBlockDeviceDict(
{'no_device': False, 'volume_id': '1', 'boot_index': 0,
'connection_info': 'inf', 'device_name': '/dev/vda',
@ -2843,6 +2856,10 @@ class _ComputeAPIUnitTestMixIn(object):
'destination_type': 'volume', 'delete_on_termination': False,
'tag': None})
with test.nested(
mock.patch.object(compute_api.API, '_record_action_start'),
mock.patch.object(compute_utils, 'EventReporter')) as (
mock_record, mock_event):
# All the db_only fields and the volume ones are removed
self.compute_api.snapshot_volume_backed(
self.context, instance, 'test-snapshot')
@ -2850,6 +2867,13 @@ class _ComputeAPIUnitTestMixIn(object):
self.assertEqual(quiesce_expected, quiesced[0])
self.assertEqual(quiesce_expected, quiesced[1])
mock_record.assert_called_once_with(self.context,
instance,
instance_actions.CREATE_IMAGE)
mock_event.assert_called_once_with(self.context,
'api_snapshot_instance',
instance.uuid)
instance.system_metadata['image_mappings'] = jsonutils.dumps(
[{'virtual': 'ami', 'device': 'vda'},
{'device': 'vda', 'virtual': 'ephemeral0'},
@ -2882,13 +2906,25 @@ class _ComputeAPIUnitTestMixIn(object):
quiesced = [False, False]
# Check that the mappings from the image properties are not included
with test.nested(
mock.patch.object(compute_api.API, '_record_action_start'),
mock.patch.object(compute_utils, 'EventReporter')) as (
mock_record, mock_event):
# Check that the mappings from the image properties are not
# included
self.compute_api.snapshot_volume_backed(
self.context, instance, 'test-snapshot')
self.assertEqual(quiesce_expected, quiesced[0])
self.assertEqual(quiesce_expected, quiesced[1])
mock_record.assert_called_once_with(self.context,
instance,
instance_actions.CREATE_IMAGE)
mock_event.assert_called_once_with(self.context,
'api_snapshot_instance',
instance.uuid)
def test_snapshot_volume_backed(self):
self._test_snapshot_volume_backed(False, False)

1
releasenotes/notes/fill-instance-action-record-gaps-14b36eba313d6d87.yaml
View File

@ -12,3 +12,4 @@ features:
* unlock
* shelveOffload
* createBackup
* createImage