def fake_instance_obj(context, obj_instance_class=None, **updates):
if obj_instance_class is None:
obj_instance_class = objects.Instance
expected_attrs = updates.pop('expected_attrs', None)
flavor = updates.pop('flavor', None)
if not flavor:
flavor = objects.Flavor(id=1, name='flavor1',
memory_mb=256, vcpus=1,
root_gb=1, ephemeral_gb=1,
flavorid='1',
swap=0, rxtx_factor=1.0,
vcpu_weight=1,
disabled=False,
is_public=True,
extra_specs={},
projects=[])
flavor.obj_reset_changes()
inst = obj_instance_class._from_db_object(context,
obj_instance_class(), fake_db_instance(**updates),
expected_attrs=expected_attrs)
inst.keypairs = objects.KeyPairList(objects=[])
inst.tags = objects.TagList()
if flavor:
inst.flavor = flavor
# This is needed for instance quota counting until we have the
# ability to count allocations in placement.
if 'vcpus' in flavor and 'vcpus' not in updates:
inst.vcpus = flavor.vcpus
if 'memory_mb' in flavor and 'memory_mb' not in updates:
inst.memory_mb = flavor.memory_mb
inst.old_flavor = None
inst.new_flavor = None
inst.obj_reset_changes()
return inst
def fake_db_req(**updates):
ctxt = context.RequestContext('fake-user', 'fake-project')
instance_uuid = uuidutils.generate_uuid()
instance = fake_instance.fake_instance_obj(ctxt,
objects.Instance,
uuid=instance_uuid)
# This will always be set this way for an instance at build time
instance.host = None
block_devices = objects.BlockDeviceMappingList(objects=[
fake_block_device.fake_bdm_object(
context,
fake_block_device.FakeDbBlockDeviceDict(
source_type='blank',
destination_type='local',
guest_format='foo',
device_type='disk',
disk_bus='',
boot_index=1,
device_name='xvda',
delete_on_termination=False,
snapshot_id=None,
volume_id=None,
volume_size=0,
image_id='bar',
no_device=False,
connection_info=None,
tag='',
instance_uuid=uuids.instance))
])
tags = objects.TagList(
objects=[objects.Tag(tag='tag1', resource_id=instance_uuid)])
db_build_request = {
'id': 1,
'project_id': 'fake-project',
'instance_uuid': instance_uuid,
'instance': jsonutils.dumps(instance.obj_to_primitive()),
'block_device_mappings':
jsonutils.dumps(block_devices.obj_to_primitive()),
'tags': jsonutils.dumps(tags.obj_to_primitive()),
'created_at': datetime.datetime(2016, 1, 16),
'updated_at': datetime.datetime(2016, 1, 16),
}
for name, field in objects.BuildRequest.fields.items():
if name in db_build_request:
continue
if field.nullable:
db_build_request[name] = None
elif field.default != fields.UnspecifiedDefault:
db_build_request[name] = field.default
else:
raise Exception('fake_db_req needs help with %s' % name)
if updates:
db_build_request.update(updates)
return db_build_request
def test_send_version_instance_update_uses_flavor(self, mock_emit):
# instance.update notification needs some tags value to avoid lazy-load
self.instance.tags = objects.TagList()
# Make sure that the notification payload chooses the values in
# instance.flavor.$value instead of instance.$value
notification_base._send_versioned_instance_update(
mock.MagicMock(), self.instance, self.payload, 'host', 'compute')
payload = mock_emit.call_args_list[0][1]['payload']['nova_object.data']
flavor_payload = payload['flavor']['nova_object.data']
data = {k: flavor_payload[k] for k in self.test_keys}
self.assertEqual(self.flavor_values, data)
def _load_instance(self, db_instance):
# NOTE(alaski): Be very careful with instance loading because it
# changes more than most objects.
try:
self.instance = objects.Instance.obj_from_primitive(
jsonutils.loads(db_instance))
except TypeError:
LOG.debug(
'Failed to load instance from BuildRequest with uuid '
'%s because it is None', self.instance_uuid)
raise exception.BuildRequestNotFound(uuid=self.instance_uuid)
except ovoo_exc.IncompatibleObjectVersion as exc:
# This should only happen if proper service upgrade strategies are
# not followed. Log the exception and raise BuildRequestNotFound.
# If the instance can't be loaded this object is useless and may
# as well not exist.
LOG.debug(
'Could not deserialize instance store in BuildRequest '
'with uuid %(instance_uuid)s. Found version %(version)s '
'which is not supported here.',
dict(instance_uuid=self.instance_uuid, version=exc.objver))
LOG.exception(
_LE('Could not deserialize instance in '
'BuildRequest'))
raise exception.BuildRequestNotFound(uuid=self.instance_uuid)
# NOTE(sbauza): The instance primitive should already have the deleted
# field being set, so when hydrating it back here, we should get the
# right value but in case we don't have it, let's suppose that the
# instance is not deleted, which is the default value for that field.
self.instance.obj_set_defaults('deleted')
# NOTE(alaski): Set some fields on instance that are needed by the api,
# not lazy-loadable, and don't change.
self.instance.disable_terminate = False
self.instance.terminated_at = None
self.instance.host = None
self.instance.node = None
self.instance.launched_at = None
self.instance.launched_on = None
self.instance.cell_name = None
# The fields above are not set until the instance is in a cell at
# which point this BuildRequest will be gone. locked_by could
# potentially be set by an update so it should not be overwritten.
if not self.instance.obj_attr_is_set('locked_by'):
self.instance.locked_by = None
# created_at/updated_at are not on the serialized instance because it
# was never persisted.
self.instance.created_at = self.created_at
self.instance.updated_at = self.updated_at
self.instance.tags = objects.TagList([])
def _load_tags(self, db_tags):
# 'db_tags' is a serialized TagList object. If it's None
# we're in a mixed version nova-api scenario and can't retrieve the
# actual list. Set it to an empty list here which will cause a
# temporary API inconsistency that will be resolved as soon as the
# instance is scheduled and on a compute.
if db_tags is None:
LOG.debug(
'Failed to load tags from BuildRequest '
'for instance %s because it is None', self.instance_uuid)
self.tags = objects.TagList()
return
self.tags = (objects.TagList.obj_from_primitive(
jsonutils.loads(db_tags)))
def delete_all(self, req, server_id):
context = req.environ["nova.context"]
context.can(st_policies.POLICY_ROOT % 'delete_all')
im = _get_instance_mapping(context, server_id)
with nova_context.target_cell(context, im.cell_mapping) as cctxt:
instance = self._check_instance_in_valid_state(
cctxt, server_id, 'delete tags')
try:
with nova_context.target_cell(context, im.cell_mapping) as cctxt:
objects.TagList.destroy(cctxt, server_id)
instance.tags = objects.TagList()
except exception.InstanceNotFound as e:
raise webob.exc.HTTPNotFound(explanation=e.format_message())
notifications_base.send_instance_update_notification(
context, instance, service="nova-api")
def _from_db_object(context, instance, db_inst, expected_attrs=None):
"""Method to help with migration to objects.
Converts a database entity to a formal object.
"""
instance._context = context
if expected_attrs is None:
expected_attrs = []
# Most of the field names match right now, so be quick
for field in instance.fields:
if field in INSTANCE_OPTIONAL_ATTRS:
continue
elif field == 'deleted':
instance.deleted = db_inst['deleted'] == db_inst['id']
elif field == 'cleaned':
instance.cleaned = db_inst['cleaned'] == 1
else:
instance[field] = db_inst[field]
# NOTE(danms): We can be called with a dict instead of a
# SQLAlchemy object, so we have to be careful here
if hasattr(db_inst, '__dict__'):
have_extra = 'extra' in db_inst.__dict__ and db_inst['extra']
else:
have_extra = 'extra' in db_inst and db_inst['extra']
if 'metadata' in expected_attrs:
instance['metadata'] = utils.instance_meta(db_inst)
if 'system_metadata' in expected_attrs:
instance['system_metadata'] = utils.instance_sys_meta(db_inst)
if 'fault' in expected_attrs:
instance['fault'] = (objects.InstanceFault.get_latest_for_instance(
context, instance.uuid))
if 'numa_topology' in expected_attrs:
if have_extra:
instance._load_numa_topology(
db_inst['extra'].get('numa_topology'))
else:
instance.numa_topology = None
if 'pci_requests' in expected_attrs:
if have_extra:
instance._load_pci_requests(
db_inst['extra'].get('pci_requests'))
else:
instance.pci_requests = None
if 'vcpu_model' in expected_attrs:
if have_extra:
instance._load_vcpu_model(db_inst['extra'].get('vcpu_model'))
else:
instance.vcpu_model = None
if 'ec2_ids' in expected_attrs:
instance._load_ec2_ids()
if 'migration_context' in expected_attrs:
if have_extra:
instance._load_migration_context(
db_inst['extra'].get('migration_context'))
else:
instance.migration_context = None
if 'info_cache' in expected_attrs:
if db_inst.get('info_cache') is None:
instance.info_cache = None
elif not instance.obj_attr_is_set('info_cache'):
# TODO(danms): If this ever happens on a backlevel instance
# passed to us by a backlevel service, things will break
instance.info_cache = objects.InstanceInfoCache(context)
if instance.info_cache is not None:
instance.info_cache._from_db_object(context,
instance.info_cache,
db_inst['info_cache'])
if any([
x in expected_attrs
for x in ('flavor', 'old_flavor', 'new_flavor')
]):
if have_extra and db_inst['extra'].get('flavor'):
instance._flavor_from_db(db_inst['extra']['flavor'])
# TODO(danms): If we are updating these on a backlevel instance,
# we'll end up sending back new versions of these objects (see
# above note for new info_caches
if 'pci_devices' in expected_attrs:
pci_devices = base.obj_make_list(context,
objects.PciDeviceList(context),
objects.PciDevice,
db_inst['pci_devices'])
instance['pci_devices'] = pci_devices
if 'security_groups' in expected_attrs:
sec_groups = base.obj_make_list(context,
objects.SecurityGroupList(context),
objects.SecurityGroup,
db_inst.get('security_groups', []))
instance['security_groups'] = sec_groups
if 'tags' in expected_attrs:
tags = base.obj_make_list(context, objects.TagList(context),
objects.Tag, db_inst['tags'])
instance['tags'] = tags
instance.obj_reset_changes()
return instance
def _from_db_object(context, instance, db_inst, expected_attrs=None):
"""Method to help with migration to objects.
Converts a database entity to a formal object.
"""
instance._context = context
if expected_attrs is None:
expected_attrs = []
# Most of the field names match right now, so be quick
for field in instance.fields:
if field in INSTANCE_OPTIONAL_ATTRS:
continue
elif field == 'deleted':
instance.deleted = db_inst['deleted'] == db_inst['id']
elif field == 'cleaned':
instance.cleaned = db_inst['cleaned'] == 1
else:
instance[field] = db_inst[field]
if 'metadata' in expected_attrs:
instance['metadata'] = utils.instance_meta(db_inst)
if 'system_metadata' in expected_attrs:
instance['system_metadata'] = utils.instance_sys_meta(db_inst)
if 'fault' in expected_attrs:
instance['fault'] = (objects.InstanceFault.get_latest_for_instance(
context, instance.uuid))
if 'numa_topology' in expected_attrs:
instance._load_numa_topology(
db_inst.get('extra').get('numa_topology'))
if 'pci_requests' in expected_attrs:
instance._load_pci_requests(
db_inst.get('extra').get('pci_requests'))
if 'info_cache' in expected_attrs:
if db_inst['info_cache'] is None:
instance.info_cache = None
elif not instance.obj_attr_is_set('info_cache'):
# TODO(danms): If this ever happens on a backlevel instance
# passed to us by a backlevel service, things will break
instance.info_cache = objects.InstanceInfoCache(context)
if instance.info_cache is not None:
instance.info_cache._from_db_object(context,
instance.info_cache,
db_inst['info_cache'])
# TODO(danms): If we are updating these on a backlevel instance,
# we'll end up sending back new versions of these objects (see
# above note for new info_caches
if 'pci_devices' in expected_attrs:
pci_devices = base.obj_make_list(context,
objects.PciDeviceList(context),
objects.PciDevice,
db_inst['pci_devices'])
instance['pci_devices'] = pci_devices
if 'security_groups' in expected_attrs:
sec_groups = base.obj_make_list(context,
objects.SecurityGroupList(context),
objects.SecurityGroup,
db_inst['security_groups'])
instance['security_groups'] = sec_groups
if 'tags' in expected_attrs:
tags = base.obj_make_list(context, objects.TagList(context),
objects.Tag, db_inst['tags'])
instance['tags'] = tags
instance.obj_reset_changes()
return instance
