class MyObj(base.CyborgPersistentObject, base.CyborgObject,
base.CyborgObjectDictCompat):
VERSION = '1.6'
fields = {
'foo': fields.IntegerField(default=1),
'bar': fields.StringField(),
'missing': fields.StringField(),
'readonly': fields.IntegerField(read_only=True),
'rel_object': fields.ObjectField('MyOwnedObject', nullable=True),
'rel_objects': fields.ListOfObjectsField('MyOwnedObject',
nullable=True),
'mutable_default': fields.ListOfStringsField(default=[]),
}
@staticmethod
def _from_db_object(context, obj, db_obj):
self = MyObj()
self.foo = db_obj['foo']
self.bar = db_obj['bar']
self.missing = db_obj['missing']
self.readonly = 1
self._context = context
return self
def obj_load_attr(self, attrname):
setattr(self, attrname, 'loaded!')
def query(cls, context):
obj = cls(context=context, foo=1, bar='bar')
obj.obj_reset_changes()
return obj
def marco(self):
return 'polo'
def _update_test(self):
self.bar = 'updated'
def save(self):
self.obj_reset_changes()
def refresh(self):
self.foo = 321
self.bar = 'refreshed'
self.obj_reset_changes()
def modify_save_modify(self):
self.bar = 'meow'
self.save()
self.foo = 42
self.rel_object = MyOwnedObject(baz=42)
def obj_make_compatible(self, primitive, target_version):
super(MyObj, self).obj_make_compatible(primitive, target_version)
# NOTE(danms): Simulate an older version that had a different
# format for the 'bar' attribute
if target_version == '1.1' and 'bar' in primitive:
primitive['bar'] = 'old%s' % primitive['bar']
class Attribute(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'deployable_id': object_fields.IntegerField(nullable=False),
'key': object_fields.StringField(nullable=False),
'value': object_fields.StringField(nullable=False)
}
def create(self, context):
"""Create an attribute record in the DB."""
if self.deployable_id is None:
raise exception.AttributeInvalid()
values = self.obj_get_changes()
db_attr = self.dbapi.attribute_create(context, self.key, self.value)
self._from_db_object(self, db_attr)
@classmethod
def get(cls, context, uuid):
"""Find a DB attribute and return an Obj attribute."""
db_attr = cls.dbapi.attribute_get(context, uuid)
obj_attr = cls._from_db_object(cls(context), db_attr)
return obj_attr
@classmethod
def attribute_get_by_deployable_uuid(cls, context, deployable_uuid):
"""Get an attribute by deployable uuid."""
db_attr = cls.dbapi.attribute_get_by_deployable_uuid(
context, deployable_uuid)
return cls._from_db_object_list(db_attr, context)
def save(self, context):
"""Update an attribute record in the DB."""
updates = self.obj_get_changes()
db_attr = self.dbapi.attribute_update(context, self.uuid, self.key,
self.value)
self._from_db_object(self, db_attr)
def destroy(self, context):
"""Delete an attribute from the DB."""
self.dbapi.attribute_delete(context, self.uuid)
self.obj_reset_changes()
def set_key_value_pair(self, set_key, set_value):
self.key = set_key
self.value = set_value
class Accelerator(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'uuid': object_fields.UUIDField(nullable=False),
'name': object_fields.StringField(nullable=False),
'description': object_fields.StringField(nullable=True),
'project_id': object_fields.UUIDField(nullable=True),
'user_id': object_fields.UUIDField(nullable=True),
'device_type': object_fields.StringField(nullable=False),
'acc_type': object_fields.StringField(nullable=False),
'acc_capability': object_fields.StringField(nullable=False),
'vendor_id': object_fields.StringField(nullable=False),
'product_id': object_fields.StringField(nullable=False),
'remotable': object_fields.IntegerField(nullable=False),
}
def __init__(self, *args, **kwargs):
super(Accelerator, self).__init__(*args, **kwargs)
def create(self, context=None):
"""Create an Accelerator record in the DB."""
values = self.obj_get_changes()
db_accelerator = self.dbapi.accelerator_create(context, values)
self._from_db_object(context, self, db_accelerator)
class DriverAttribute(base.DriverObjectBase,
object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'key': object_fields.StringField(nullable=False),
'value': object_fields.StringField(nullable=False)
}
def create(self, context, deployable_id):
"""Convert driver-side Attribute into Attribute Object so as to
store in DB.
"""
attr_obj = Attribute()
attr_obj.deployable_id = deployable_id
attr_obj.set_key_value_pair(self.key, self.value)
attr_obj.create(context)
@classmethod
def destroy(cls, context, deployable_id):
"""Delete driver-side attribute list from the DB."""
attr_obj_list = Attribute.get_by_deployable_id(context, deployable_id)
for attr_obj in attr_obj_list:
attr_obj.destroy(context)
@classmethod
def delete_by_key(cls, context, deployable_id, key):
"""Delete driver-side attribute list from the DB."""
attr_obj_list = Attribute.get_by_deployable_id(context, deployable_id)
for attr_obj in attr_obj_list:
if key == attr_obj.key:
attr_obj.destroy(context)
@classmethod
def list(cls, context, deployable_id):
"""Form driver-side attribute list for one deployable."""
attr_obj_list = Attribute.get_by_deployable_id(context, deployable_id)
driver_attr_obj_list = []
for attr_obj in attr_obj_list:
driver_attr_obj = cls(context=context,
key=attr_obj.key,
value=attr_obj.value)
driver_attr_obj_list.append(driver_attr_obj)
return driver_attr_obj_list
class DriverAttachHandle(base.DriverObjectBase,
object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'attach_type': object_fields.StringField(nullable=False),
# PCI BDF or mediated device ID...
'attach_info': object_fields.StringField(nullable=False),
# The status of attach_handle, is in use or not.
'in_use': object_fields.BooleanField(nullable=False, default=False)
}
def create(self, context, deployable_id, cpid_id):
"""Create a driver-side AttachHandle object, call AttachHandle
Object to store in DB.
"""
attach_handle_obj = AttachHandle(context=context,
deployable_id=deployable_id,
cpid_id=cpid_id,
attach_type=self.attach_type,
attach_info=self.attach_info,
in_use=self.in_use)
attach_handle_obj.create(context)
def destroy(self, context, deployable_id):
ah_obj = AttachHandle.get_ah_by_depid_attachinfo(
context, deployable_id, self.attach_info)
if ah_obj is not None:
ah_obj.destroy(context)
@classmethod
def list(cls, context, deployable_id):
"""Form a driver-side attach_handle list for one deployable."""
ah_obj_list = AttachHandle.get_ah_list_by_deployable_id(
context, deployable_id)
driver_ah_obj_list = []
for ah_obj in ah_obj_list:
driver_ah_obj = cls(context=context,
attach_type=ah_obj.attach_type,
attach_info=ah_obj.attach_info,
in_use=ah_obj.in_use)
driver_ah_obj_list.append(driver_ah_obj)
return driver_ah_obj_list
class ARQ(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
# 1.1: v2 API and Nova integration
VERSION = '1.1'
dbapi = dbapi.get_instance()
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'state': object_fields.ARQStateField(nullable=False),
'device_profile_name': object_fields.StringField(nullable=False),
'device_profile_group_id':
object_fields.IntegerField(nullable=False),
# Fields populated by Nova after scheduling for binding
'hostname': object_fields.StringField(nullable=True),
'device_rp_uuid': object_fields.StringField(nullable=True),
'instance_uuid': object_fields.StringField(nullable=True),
# Fields populated by Cyborg after binding
'attach_handle_type': object_fields.StringField(nullable=True),
'attach_handle_info': object_fields.DictOfStringsField(nullable=True),
}
@staticmethod
def _from_db_object(arq, db_extarq):
"""Converts an ARQ to a formal object.
:param arq: An object of the class ARQ
:param db_extarq: A DB model of the object
:return: The object of the class with the database entity added
"""
ahi = db_extarq['attach_handle_info']
if ahi is not None and ahi != '':
d = jsonutils.loads(ahi)
db_extarq['attach_handle_info'] = d
else:
db_extarq['attach_handle_info'] = {}
for field in arq.fields:
arq[field] = db_extarq[field]
arq.obj_reset_changes()
return arq
class Accelerator(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'name': object_fields.StringField(nullable=False),
'description': object_fields.StringField(nullable=True),
'project_id': object_fields.UUIDField(nullable=True),
'user_id': object_fields.UUIDField(nullable=True),
'device_type': object_fields.StringField(nullable=False),
# The type of the accelerator device, e.g GPU, FPGA, ...
'acc_type': object_fields.StringField(nullable=False),
# acc_type defines the usage of the accelerator, e.g Crypto
'acc_capability': object_fields.StringField(nullable=False),
# acc_capability defines the specific capability, e.g AES
'vendor_id': object_fields.StringField(nullable=False),
# vendor_id refers to ids like NVIDIA, XILINX, INTEL,...
'product_id': object_fields.StringField(nullable=False),
# product_id refers to ids like P100
'remotable': object_fields.IntegerField(nullable=False),
# remotable ids if remote accelerator is supported
}
def create(self, context):
"""Create an Accelerator record in the DB."""
values = self.obj_get_changes()
db_acc = self.dbapi.accelerator_create(context, values)
self._from_db_object(self, db_acc)
@classmethod
def get(cls, context, uuid):
"""Find a DB Accelerator and return an Obj Accelerator."""
db_acc = cls.dbapi.accelerator_get(context, uuid)
obj_acc = cls._from_db_object(cls(context), db_acc)
return obj_acc
@classmethod
def list(cls, context, limit, marker, sort_key, sort_dir, project_only):
"""Return a list of Accelerator objects."""
db_accs = cls.dbapi.accelerator_list(context, limit, marker, sort_key,
sort_dir, project_only)
return cls._from_db_object_list(db_accs, context)
def save(self, context):
"""Update an Accelerator record in the DB."""
updates = self.obj_get_changes()
db_acc = self.dbapi.accelerator_update(context, self.uuid, updates)
self._from_db_object(self, db_acc)
def destroy(self, context):
"""Delete the Accelerator from the DB."""
self.dbapi.accelerator_delete(context, self.uuid)
self.obj_reset_changes()
class DriverControlPathID(base.DriverObjectBase,
object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'cpid_type': object_fields.StringField(nullable=False),
# PCI BDF, PowerVM device, etc.
'cpid_info': object_fields.StringField(nullable=False)
}
def create(self, context, device_id):
"""Create a driver-side ControlPathID for drivers. Call
ControlpathID object to store in DB.
"""
cpid_obj = ControlpathID(context=context,
device_id=device_id,
cpid_type=self.cpid_type,
cpid_info=self.cpid_info)
cpid_obj.create(context)
return cpid_obj
def destroy(self, context, device_id):
cpid_obj = ControlpathID.get_by_device_id_cpidinfo(
context, device_id, self.cpid_info)
if cpid_obj is not None:
cpid_obj.destroy(context)
@classmethod
def get(cls, context, device_id):
# return None when can't found any.
cpid_obj = ControlpathID.get_by_device_id(context, device_id)
driver_cpid_obj = None
if cpid_obj is not None:
driver_cpid_obj = cls(context=context,
cpid_type=cpid_obj.cpid_type,
cpid_info=cpid_obj.cpid_info)
return driver_cpid_obj
class ARQ(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'state': object_fields.ARQStateField(nullable=False),
'device_profile': object_fields.ObjectField('DeviceProfile',
nullable=True),
'hostname': object_fields.StringField(nullable=True),
'device_rp_uuid': object_fields.UUIDField(nullable=True),
'device_instance_uuid': object_fields.UUIDField(nullable=True),
'attach_handle': object_fields.ObjectField('AttachHandle',
nullable=True),
}
@staticmethod
def _from_db_object(arq, db_extarq):
"""Converts an ARQ to a formal object.
:param arq: An object of the class ARQ
:param db_extarq: A DB model of the object
:return: The object of the class with the database entity added
"""
device_profile_id = db_extarq.pop('device_profile_id', None)
attach_handle_id = db_extarq.pop('attach_handle_id', None)
for field in arq.fields:
# if field == 'device_profile':
# arq._load_device_profile(device_profile_id)
# if field == 'attach_handle':
# arq._load_device_profile(attach_handle_id)
arq[field] = db_extarq[field]
arq.obj_reset_changes()
return arq
def _load_device_profile(self, device_profile_id):
self.device_profile = objects.DeviceProfile.\
get_by_id(self._context, device_profile_id)
def _load_attach_handle(self, attach_handle_id):
self.attach_handle = objects.AttachHandle.\
get_by_id(self._context, attach_handle_id)
class ExtARQ(base.CyborgObject, object_base.VersionedObjectDictCompat):
""" ExtARQ is a wrapper around ARQ with Cyborg-private fields.
Each ExtARQ object contains exactly one ARQ object as a field.
But, in the db layer, ExtARQ and ARQ are represented together
as a row in a single table. Both share a single UUID.
ExtARQ version is bumped up either if any of its fields change
or if the ARQ version changes.
"""
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'arq': object_fields.ObjectField('ARQ'),
# Cyborg-private fields
# Left substate open now, fill them out during design/implementation
# later.
'substate': object_fields.StringField(nullable=True),
}
def create(self, context, device_profile_id=None):
"""Create an ExtARQ record in the DB."""
if 'device_profile' not in self.arq and not device_profile_id:
raise exception.ObjectActionError(
action='create', reason='Device profile is required in ARQ')
self.arq.state = constants.ARQINITIAL
self.substate = constants.ARQINITIAL
values = self.obj_get_changes()
arq_obj = values.pop('arq', None)
if arq_obj is not None:
values.update(arq_obj.as_dict())
# Pass devprof id to db layer, to avoid repeated queries
if device_profile_id is not None:
values['device_profile_id'] = device_profile_id
db_extarq = self.dbapi.extarq_create(context, values)
self._from_db_object(self, db_extarq)
return self
@classmethod
def get(cls, context, uuid):
"""Find a DB ExtARQ and return an Obj ExtARQ."""
db_extarq = cls.dbapi.extarq_get(context, uuid)
obj_arq = objects.ARQ(context)
obj_extarq = ExtARQ(context)
obj_extarq['arq'] = obj_arq
obj_extarq = cls._from_db_object(obj_extarq, db_extarq)
return obj_extarq
@classmethod
def list(cls, context, limit, marker, sort_key, sort_dir):
"""Return a list of ExtARQ objects."""
db_extarqs = cls.dbapi.extarq_list(context, limit, marker, sort_key,
sort_dir)
obj_extarq_list = cls._from_db_object_list(db_extarqs, context)
return obj_extarq_list
def save(self, context):
"""Update an ExtARQ record in the DB."""
updates = self.obj_get_changes()
db_extarq = self.dbapi.extarq_update(context, self.arq.uuid, updates)
self._from_db_object(self, db_extarq)
def destroy(self, context):
"""Delete an ExtARQ from the DB."""
self.dbapi.extarq_delete(context, self.arq.uuid)
self.obj_reset_changes()
def bind(self, context, host_name, devrp_uuid, instance_uuid):
""" Given a device rp UUID, get the deployable UUID and
an attach handle.
"""
# For the fake device, we just set the state to 'Bound'
# TODO(wangzhh): Move bind logic and unbind logic to the agent later.
arq = self.arq
arq.host_name = host_name
arq.device_rp_uuid = devrp_uuid
arq.instance_uuid = instance_uuid
arq.state = constants.ARQBOUND
self.save(context)
def unbind(self, context):
arq = self.arq
arq.host_name = ''
arq.device_rp_uuid = ''
arq.instance_uuid = ''
arq.state = constants.ARQUNBOUND
self.save(context)
@staticmethod
def _from_db_object(extarq, db_extarq):
"""Converts an ExtARQ to a formal object.
:param extarq: An object of the class ExtARQ
:param db_extarq: A DB model of the object
:return: The object of the class with the database entity added
"""
for field in extarq.fields:
if field != 'arq':
extarq[field] = db_extarq[field]
extarq.arq = objects.ARQ()
extarq.arq._from_db_object(extarq.arq, db_extarq)
extarq.obj_reset_changes()
return extarq
def obj_get_changes(self):
"""Returns a dict of changed fields and their new values."""
changes = {}
for key in self.obj_what_changed():
if key != 'arq':
changes[key] = getattr(self, key)
for key in self.arq.obj_what_changed():
changes[key] = getattr(self.arq, key)
return changes
class Attribute(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'deployable_id': object_fields.IntegerField(nullable=False),
'key': object_fields.StringField(nullable=False),
'value': object_fields.StringField(nullable=False)
}
def create(self, context):
"""Create a attribute record in the DB."""
if self.deployable_id is None:
raise exception.AttributeInvalid()
values = self.obj_get_changes()
db_attr = self.dbapi.attribute_create(context, values)
self._from_db_object(self, db_attr)
@classmethod
def get(cls, context, uuid):
"""Find a DB attribute and return an Obj Deployable."""
db_attr = cls.dbapi.attribute_get(context, uuid)
obj_attr = cls._from_db_object(cls(context), db_attr)
return obj_attr
@classmethod
def get_by_deployable_id(cls, context, deployable_id):
"""Get a attribute by deployable_id"""
db_attr = cls.dbapi.attribute_get_by_deployable_id(
context, deployable_id)
return cls._from_db_object_list(db_attr, context)
@classmethod
def get_by_filter(cls, context, filters):
"""Get a attribute by specified filters"""
db_attr = cls.dbapi.attribute_get_by_filter(context, filters)
return cls._from_db_object_list(db_attr, context)
def save(self, context):
"""Update a attribute record in the DB."""
updates = self.obj_get_changes()
db_attr = self.dbapi.attribute_update(context, self.uuid, self.key,
self.value)
self._from_db_object(self, db_attr)
def destroy(self, context):
"""Delete a attribute from the DB."""
self.dbapi.attribute_delete(context, self.uuid)
self.obj_reset_changes()
def set_key_value_pair(self, set_key, set_value):
self.key = set_key
self.value = set_value
@classmethod
def get_by_dep_key(cls, context, dep_id, key):
"""Get the only one attribute with deployable_id and the key."""
attr_filter = {"deployable_id": dep_id, "key": key}
attr_list = cls.get_by_filter(context, attr_filter)
if len(attr_list) != 0:
return attr_list[0]
else:
return None
class DeviceProfile(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'name': object_fields.StringField(nullable=False),
'profile_json': object_fields.StringField(nullable=False),
}
def create(self, context):
"""Create a device_profile record in the DB."""
values = self.obj_get_changes()
db_device_profile = self.dbapi.device_profile_create(context, values)
self._from_db_object(self, db_device_profile)
@classmethod
def get(cls, context, uuid):
"""Find a DB Device_profile and return a Obj Device_profile."""
db_device_profile = cls.dbapi.device_profile_get_by_uuid(context, uuid)
obj_device_profile = cls._from_db_object(cls(context),
db_device_profile)
return obj_device_profile
@classmethod
def list(cls, context, filters={}):
"""Return a list of Device_profile objects."""
if filters:
sort_dir = filters.pop('sort_dir', 'desc')
sort_key = filters.pop('sort_key', 'created_at')
limit = filters.pop('limit', None)
marker = filters.pop('marker_obj', None)
db_device_profiles = cls.dbapi.device_profile_list_by_filters(
context,
filters,
sort_dir=sort_dir,
sort_key=sort_key,
limit=limit,
marker=marker)
else:
db_device_profiles = cls.dbapi.device_profile_list(context)
return cls._from_db_object_list(db_device_profiles, context)
def save(self, context):
"""Update a Device_profile record in the DB."""
updates = self.obj_get_changes()
db_device_profile = self.dbapi.device_profile_update(
context, self.uuid, updates)
self._from_db_object(self, db_device_profile)
def destroy(self, context):
"""Delete the Device_profile from the DB."""
self.dbapi.device_profile_delete(context, self.uuid)
self.obj_reset_changes()
@classmethod
def get_by_id(cls, context, id):
"""Find a device_profile and return an Obj DeviceProfile."""
db_dp = cls.dbapi.device_profile_get_by_id(context, id)
obj_dp = cls._from_db_object(cls(context), db_dp)
return obj_dp
class DriverDeployable(base.DriverObjectBase,
object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'name': object_fields.StringField(nullable=False),
'num_accelerators': object_fields.IntegerField(nullable=False),
'attribute_list': object_fields.ListOfObjectsField(
'DriverAttribute', default=[], nullable=True),
# TODO() add field related to local_memory or just store in the
# attribute list?
'attach_handle_list': object_fields.ListOfObjectsField(
'DriverAttachHandle', default=[], nullable=True),
'driver_name': object_fields.StringField(nullable=True)
}
def create(self, context, device_id, cpid_id):
"""Create a driver-side Deployable object into DB. This object will be
stored in separate db tables: deployable & attach_handle &
attribute table.
"""
# first store in deployable table through Deployable Object.
deployable_obj = Deployable(context=context,
name=self.name,
num_accelerators=self.num_accelerators,
device_id=device_id,
driver_name=self.driver_name
)
deployable_obj.create(context)
# create attribute_list for this deployable
if hasattr(self, 'attribute_list'):
for driver_attr in self.attribute_list:
driver_attr.create(context, deployable_obj.id)
# create attach_handle_list for this deployable
if hasattr(self, 'attach_handle_list'):
for driver_attach_handle in self.attach_handle_list:
driver_attach_handle.create(context, deployable_obj.id,
cpid_id)
def destroy(self, context, device_id):
"""delete one driver-side deployable by calling existing Deployable
and AttachHandle Object. Use name&host to identify Deployable and
attach_info to identify the AttachHandle
"""
# get deployable_id by name, get only one value.
dep_obj = Deployable.get_by_name_deviceid(context, self.name,
device_id)
# delete attach_handle
if hasattr(self, 'attach_handle_list'):
for driver_ah_obj in self.attach_handle_list:
# get attach_handle_obj, exist and only one.
driver_ah_obj.destroy(context, dep_obj.id)
# delete attribute_list
if hasattr(self, 'attribute_list'):
DriverAttribute.destroy(context, dep_obj.id)
# delete dep_obj
if dep_obj is not None:
dep_obj.destroy(context)
@classmethod
def list(cls, context, device_id):
"""Form driver-side Deployable object list from DB for one device."""
# get deployable_obj_list for one device_id
dep_obj_list = Deployable.get_list_by_device_id(context, device_id)
driver_dep_obj_list = []
for dep_obj in dep_obj_list:
# get driver_ah_obj_list for this dep_obj
driver_ah_obj_list = DriverAttachHandle.list(context, dep_obj.id)
# get driver_attr_obj_list fro this dep_obj
driver_attr_obj_list = DriverAttribute.list(context, dep_obj.id)
driver_dep_obj = cls(context=context,
name=dep_obj.name,
num_accelerators=dep_obj.num_accelerators,
attribute_list=driver_attr_obj_list,
attach_handle_list=driver_ah_obj_list)
driver_dep_obj_list.append(driver_dep_obj)
return driver_dep_obj_list
@classmethod
def get_by_name(cls, context, name):
"""Form driver-side Deployable object list from DB for one device."""
# get deployable_obj_list for one device_id
dep_obj = Deployable.get_by_name(context, name)
driver_ah_obj_list = DriverAttachHandle.list(context, dep_obj.id)
# get driver_attr_obj_list fro this dep_obj
driver_attr_obj_list = DriverAttribute.list(context, dep_obj.id)
driver_dep_obj = cls(context=context, name=dep_obj.name,
num_accelerators=dep_obj.num_accelerators,
attribute_list=driver_attr_obj_list,
attach_handle_list=driver_ah_obj_list)
return driver_dep_obj
class ExtARQ(base.CyborgObject, object_base.VersionedObjectDictCompat,
utils.FactoryMixin, ExtARQJobMixin):
"""ExtARQ is a wrapper around ARQ with Cyborg-private fields.
Each ExtARQ object contains exactly one ARQ object as a field.
But, in the db layer, ExtARQ and ARQ are represented together
as a row in a single table. Both share a single UUID.
ExtARQ version is bumped up either if any of its fields change
or if the ARQ version changes.
"""
# Version 1.0: Initial version
# 1.1: v2 API and Nova integration
VERSION = '1.1'
dbapi = dbapi.get_instance()
fields = {
'arq': object_fields.ObjectField('ARQ'),
# Cyborg-private fields
# Left substate open now, fill them out during design/implementation
# later.
'substate': object_fields.StringField(),
'deployable_uuid': object_fields.UUIDField(nullable=True),
# The dp group is copied in to the extarq, so that any changes or
# deletions to the device profile do not affect running VMs.
'device_profile_group':
object_fields.DictOfStringsField(nullable=True),
# For bound ARQs, we keep the attach handle ID here so that
# it is easy to deallocate on unbind or delete.
'attach_handle_id': object_fields.IntegerField(nullable=True),
}
def create(self, context, device_profile_id=None):
"""Create an ExtARQ record in the DB."""
if 'device_profile_name' not in self.arq and not device_profile_id:
raise exception.ObjectActionError(
action='create',
reason='Device profile name is required in ARQ')
self.arq.state = constants.ARQ_INITIAL
self.substate = constants.ARQ_INITIAL
values = self.obj_get_changes()
arq_obj = values.pop('arq', None)
if arq_obj is not None:
values.update(arq_obj.as_dict())
# Pass devprof id to db layer, to avoid repeated queries
if device_profile_id is not None:
values['device_profile_id'] = device_profile_id
db_extarq = self.dbapi.extarq_create(context, values)
self._from_db_object(self, db_extarq, context)
return self
@classmethod
def get(cls, context, uuid, lock=False):
"""Find a DB ExtARQ and return an Obj ExtARQ."""
db_extarq = cls.dbapi.extarq_get(context, uuid)
obj_arq = objects.ARQ(context)
obj_extarq = cls(context)
obj_extarq['arq'] = obj_arq
obj_extarq = cls._from_db_object(obj_extarq, db_extarq, context)
return obj_extarq
@classmethod
def list(cls, context, uuid_range=None):
"""Return a list of ExtARQ objects."""
db_extarqs = cls.dbapi.extarq_list(context, uuid_range)
obj_extarq_list = cls._from_db_object_list(db_extarqs, context)
return obj_extarq_list
def save(self, context):
"""Update an ExtARQ record in the DB."""
updates = self.obj_get_changes()
db_extarq = self.dbapi.extarq_update(context, self.arq.uuid, updates)
self._from_db_object(self, db_extarq, context)
def update_state(self, context, state, scope=None):
"""Update an ExtARQ state record in the DB."""
updates = self.obj_get_changes()
updates["state"] = state
db_extarq = self.dbapi.extarq_update(context, self.arq.uuid, updates,
scope)
self._from_db_object(self, db_extarq, context)
def update_check_state(self, context, state, scope=None):
if self.arq.state == state:
LOG.info("ExtARQ(%s) state is %s, no need to update",
self.arq.uuid, state)
return False
old = self.arq.state
scope = scope or ARQ_STATES_TRANSFORM_MATRIX[state]
self.update_state(context, state, scope)
ea = ExtARQ.get(context, self.arq.uuid, lock=True)
if not ea:
raise exception.ResourceNotFound(resources='ExtARQ',
msg="Can not find ExtARQ(%s)" %
self.arq.uuid)
current = ea.arq.state
if state != current:
msg = ("Failed to change ARQ state from %s to %s, the current "
"state is %s" % (old, state, current))
LOG.error(msg)
raise exception.ARQBadState(state=current,
uuid=self.arq.uuid,
expected=list(state))
return True
def destroy(self, context):
"""Delete an ExtARQ from the DB."""
self.dbapi.extarq_delete(context, self.arq.uuid)
self.obj_reset_changes()
@classmethod
def delete_by_uuid(cls, context, arq_uuid_list):
"""Delete a list of ARQs based on their UUIDs.
This is not idempotent, i.e., if the first call to delete an
ARQ has succeeded, second and later calls to delete the same ARQ
will get errored out, but it will raise the exception only after
all input arq being operated.
"""
unexisted = []
for uuid in arq_uuid_list:
try:
obj_extarq = objects.ExtARQ.get(context, uuid)
# TODO() Defer deletion to conductor
if obj_extarq.arq.state != constants.ARQ_INITIAL:
obj_extarq.unbind(context)
obj_extarq.destroy(context)
except exception.ResourceNotFound:
unexisted.append(uuid)
continue
if unexisted:
LOG.warning('There are unexisted arqs: %s', unexisted)
raise exception.ResourceNotFound(resource='ARQ',
msg='with uuids %s' % unexisted)
@classmethod
def delete_by_instance(cls, context, instance_uuid):
"""Delete all ARQs for given instance.
This is idempotent, i.e., it would have the same effect if called
repeatedly with the same instance UUID. In other words, it would
not raise an error on the second and later attempts even if the
first one has deleted the ARQs.
"""
obj_extarqs = [
extarq for extarq in objects.ExtARQ.list(context)
if extarq.arq['instance_uuid'] == instance_uuid
]
for obj_extarq in obj_extarqs:
LOG.info('Deleting obj_extarq uuid %s for instance %s',
obj_extarq.arq['uuid'], obj_extarq.arq['instance_uuid'])
obj_extarq.unbind(context)
obj_extarq.destroy(context)
def _get_glance_connection(self):
default_user = '******'
try:
auth_user = CONF.image.username or default_user
except Exception:
auth_user = default_user
return connection.Connection(cloud=auth_user)
def _allocate_attach_handle(self, context, deployable):
try:
ah = AttachHandle.allocate(context, deployable.id)
self.attach_handle_id = ah.id
except Exception as e:
LOG.error(
"Failed to allocate attach handle for ARQ %s"
"from deployable %s. Reason: %s", self.arq.uuid,
deployable.uuid, str(e))
# TODO(Shaohe) Rollback? We have _update_placement,
# should cancel it.
self.update_check_state(context, constants.ARQ_BIND_FAILED)
raise
LOG.info('Attach handle(%s) for ARQ(%s) successfully.', ah.uuid,
self.arq.uuid)
def bind(self, context, deployable):
self._allocate_attach_handle(context, deployable)
# ARQ state changes get committed here
self.update_check_state(context, constants.ARQ_BOUND)
LOG.info('Update ARQ %s state to "Bound" successfully.', self.arq.uuid)
# TODO(Shaohe) rollback self._unbind and self._delete
# if (self.arq.state == constants.ARQ_DELETING
# or self.arq.state == ARQ_UNBOUND):
def unbind(self, context):
arq = self.arq
arq.hostname = None
arq.device_rp_uuid = None
arq.instance_uuid = None
arq.state = constants.ARQ_UNBOUND
# Unbind: mark attach handles as freed
ah_id = self.attach_handle_id
if ah_id:
attach_handle = AttachHandle.get_by_id(context, ah_id)
attach_handle.deallocate(context)
self.attach_handle_id = None
self.save(context)
@classmethod
def _fill_obj_extarq_fields(cls, context, db_extarq):
"""ExtARQ object has some fields that are not present
in db_extarq. We fill them out here.
"""
# From the 2 fields in the ExtARQ, we obtain other fields.
devprof_id = db_extarq['device_profile_id']
devprof_group_id = db_extarq['device_profile_group_id']
devprof = DeviceProfile.get_by_id(context, devprof_id)
db_extarq['device_profile_name'] = devprof['name']
db_extarq['attach_handle_type'] = ''
db_extarq['attach_handle_info'] = ''
if db_extarq['state'] == 'Bound': # TODO() Do proper bind
db_ah = cls.dbapi.attach_handle_get_by_id(
context, db_extarq['attach_handle_id'])
if db_ah is not None:
db_extarq['attach_handle_type'] = db_ah['attach_type']
db_extarq['attach_handle_info'] = db_ah['attach_info']
else:
raise exception.ResourceNotFound(resource='Attach Handle',
msg='with uuid=%s' %
db_extarq['attach_handle_id'])
if db_extarq['deployable_id']:
dep = objects.Deployable.get_by_id(context,
db_extarq['deployable_id'])
db_extarq['deployable_uuid'] = dep.uuid
else:
LOG.debug('Setting deployable UUID to zeroes for db_extarq %s',
db_extarq['uuid'])
db_extarq['deployable_uuid'] = (
'00000000-0000-0000-0000-000000000000')
groups = devprof['groups']
db_extarq['device_profile_group'] = groups[devprof_group_id]
return db_extarq
@classmethod
def _from_db_object(cls, extarq, db_extarq, context):
"""Converts an ExtARQ to a formal object.
:param extarq: An object of the class ExtARQ
:param db_extarq: A DB model of the object
:return: The object of the class with the database entity added
"""
cls._fill_obj_extarq_fields(context, db_extarq)
for field in extarq.fields:
if field != 'arq':
extarq[field] = db_extarq.get(field)
extarq.arq = objects.ARQ()
extarq.arq._from_db_object(extarq.arq, db_extarq)
extarq.obj_reset_changes()
return extarq
@classmethod
def _from_db_object_list(cls, db_objs, context):
"""Converts a list of ExtARQs to a list of formal objects."""
objs = []
for db_obj in db_objs:
extarq = cls(context)
obj = cls._from_db_object(extarq, db_obj, context)
objs.append(obj)
return objs
def obj_get_changes(self):
"""Returns a dict of changed fields and their new values."""
changes = {}
for key in self.obj_what_changed():
if key != 'arq':
changes[key] = getattr(self, key)
for key in self.arq.obj_what_changed():
changes[key] = getattr(self.arq, key)
return changes
class DriverDevice(base.DriverObjectBase,
object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'vendor': object_fields.StringField(nullable=False),
'model': object_fields.StringField(nullable=False),
'type': object_fields.DeviceTypeField(nullable=False),
'std_board_info': object_fields.StringField(nullable=True),
# vendor board info should be a dict for driver-specific resource
# provider.
'vendor_board_info': object_fields.StringField(nullable=True),
# hostname will be set by the agent, so driver don't need to report.
# Each controlpath_id corresponds to a different PF. For now
# we are sticking with a single cpid.
'controlpath_id': object_fields.ObjectField('DriverControlPathID',
nullable=False),
'deployable_list': object_fields.ListOfObjectsField('DriverDeployable',
default=[],
nullable=False)
}
def create(self, context, host):
"""Create a driver-side Device Object into DB. This object will be
stored in many db tables: device, deployable, attach_handle,
controlpath_id etc. by calling related Object."""
# first store in device table through Device Object.
device_obj = Device(context=context,
type=self.type,
vendor=self.vendor,
model=self.model,
hostname=host
)
if hasattr(self, 'std_board_info'):
device_obj.std_board_info = self.std_board_info
if hasattr(self, 'vendor_board_info'):
device_obj.vendor_board_info = self.vendor_board_info
device_obj.create(context)
# for the controlpath_id, call driver_controlpath_id to create.
cpid_obj = self.controlpath_id.create(context, device_obj.id)
# for deployable_list, call internal layer object: driver_deployable
# to create.
for driver_deployable in self.deployable_list:
driver_deployable.create(context, device_obj.id, cpid_obj.id)
def destroy(self, context, host):
"""Delete a driver-side Device Object from db. This should
delete the internal layer objects."""
# get dev_obj_list from hostname
device_obj = self.get_device_obj(context, host)
if hasattr(self.controlpath_id, 'cpid_info'):
cpid_obj = ControlpathID.get_by_device_id_cpidinfo(
context, device_obj.id, self.controlpath_id.cpid_info)
# delete controlpath_id
cpid_obj.destroy(context)
# delete deployable_list first.
for driver_deployable in self.deployable_list:
driver_deployable.destroy(context, device_obj.id)
# delete the device
device_obj.destroy(context)
def get_device_obj(self, context, host):
"""
:param context: requested context.
:param host: hostname of the node.
:return: a device object of current driver device object. It will
return on value because it has controlpath_id.
"""
# get dev_obj_list from hostname
device_obj_list = Device.get_list_by_hostname(context, host)
# use controlpath_id.cpid_info to identiy one Device.
for device_obj in device_obj_list:
# get cpid_obj, could be empty or only one value.
cpid_obj = ControlpathID.get_by_device_id_cpidinfo(
context, device_obj.id, self.controlpath_id.cpid_info)
# find the one cpid_obj with cpid_info
if cpid_obj is not None:
return device_obj
@classmethod
def list(cls, context, host):
"""Form driver-side device object list from DB for one host.
A list may contains driver_device_object without controlpath_id.(In
the case some of controlpath_id can't store successfully but its
devices stores successfully.
)"""
# get dev_obj_list from hostname
dev_obj_list = Device.get_list_by_hostname(context, host)
driver_dev_obj_list = []
for dev_obj in dev_obj_list:
cpid = DriverControlPathID.get(context, dev_obj.id)
# NOTE: will not return device without controlpath_id.
if cpid is not None:
driver_dev_obj = \
cls(context=context, vendor=dev_obj.vendor,
model=dev_obj.model, type=dev_obj.type,
std_board_info=dev_obj.std_board_info,
vendor_board_info=dev_obj.vendor_board_info,
controlpath_id=cpid,
deployable_list=DriverDeployable.list(context,
dev_obj.id)
)
driver_dev_obj_list.append(driver_dev_obj)
return driver_dev_obj_list
class Deployable(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
attributes_list = []
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'name': object_fields.StringField(nullable=False),
'parent_uuid': object_fields.UUIDField(nullable=True),
# parent_uuid refers to the id of the VF's parent node
'root_uuid': object_fields.UUIDField(nullable=True),
# root_uuid refers to the id of the VF's root which has to be a PF
'pcie_address': object_fields.StringField(nullable=False),
'host': object_fields.StringField(nullable=False),
'board': object_fields.StringField(nullable=False),
# board refers to a specific acc board type, e.g P100 GPU card
'vendor': object_fields.StringField(nullable=False),
'version': object_fields.StringField(nullable=False),
'type': object_fields.StringField(nullable=False),
# similar to the acc_type in accelerator.py
'assignable': object_fields.BooleanField(nullable=False),
# identify if a instance is in use
'instance_uuid': object_fields.UUIDField(nullable=True),
# The id of the virtualized accelerator instance
'availability': object_fields.StringField(nullable=False),
# identify the state of acc, e.g released/claimed/...
# 'accelerator_id': object_fields.IntegerField(nullable=False)
# Foreign key constrain to reference accelerator table.
}
def _get_parent_root_uuid(self):
obj_dep = Deployable.get(None, self.parent_uuid)
return obj_dep.root_uuid
def create(self, context):
"""Create a Deployable record in the DB."""
if 'uuid' not in self:
raise exception.ObjectActionError(action='create',
reason='uuid is required')
if self.parent_uuid is None:
self.root_uuid = self.uuid
else:
self.root_uuid = self._get_parent_root_uuid()
values = self.obj_get_changes()
db_dep = self.dbapi.deployable_create(context, values)
self._from_db_object(self, db_dep)
@classmethod
def get(cls, context, uuid):
"""Find a DB Deployable and return an Obj Deployable."""
db_dep = cls.dbapi.deployable_get(context, uuid)
obj_dep = cls._from_db_object(cls(context), db_dep)
return obj_dep
@classmethod
def get_by_host(cls, context, host):
"""Get a Deployable by host."""
db_deps = cls.dbapi.deployable_get_by_host(context, host)
return cls._from_db_object_list(context, db_deps)
@classmethod
def list(cls, context):
"""Return a list of Deployable objects."""
db_deps = cls.dbapi.deployable_list(context)
return cls._from_db_object_list(context, db_deps)
def save(self, context):
"""Update a Deployable record in the DB."""
updates = self.obj_get_changes()
db_dep = self.dbapi.deployable_update(context, self.uuid, updates)
self._from_db_object(self, db_dep)
def destroy(self, context):
"""Delete a Deployable from the DB."""
self.dbapi.deployable_delete(context, self.uuid)
self.obj_reset_changes()
def add_attribute(self, attribute):
"""add a attribute object to the attribute_list.
If the attribute already exists, it will update the value,
otherwise, the vf will be appended to the list.
"""
if not isinstance(attribute, Attribute):
raise exception.InvalidDeployType()
for exist_attr in self.attributes_list:
if base.obj_equal_prims(vf, exist_attr):
LOG.warning("The attribute already exists.")
return None
@classmethod
def get_by_filter(cls,
context,
filters,
sort_key='created_at',
sort_dir='desc',
limit=None,
marker=None,
join=None):
obj_dpl_list = []
db_dpl_list = cls.dbapi.deployable_get_by_filters(context,
filters,
sort_key=sort_key,
sort_dir=sort_dir,
limit=limit,
marker=marker,
join_columns=join)
for db_dpl in db_dpl_list:
obj_dpl = cls._from_db_object(cls(context), db_dpl)
obj_dpl_list.append(obj_dpl)
return obj_dpl_list
class Deployable(base.CyborgObject, object_base.VersionedObjectDictCompat):
# 1.0: Initial version
# 1.1: Added rp_uuid, driver_name, bitstream_id, num_accel_in_use
VERSION = '1.1'
dbapi = dbapi.get_instance()
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'parent_id': object_fields.IntegerField(nullable=True),
# parent_id refers to the id of the deployable's parent node
'root_id': object_fields.IntegerField(nullable=True),
# root_id refers to the id of the deployable's root to for nested tree
'name': object_fields.StringField(nullable=False),
# name of the deployable
'num_accelerators': object_fields.IntegerField(nullable=False),
# number of accelerators spawned by this deployable
'device_id': object_fields.IntegerField(nullable=False),
# Foreign key constrain to reference device table
'driver_name': object_fields.StringField(nullable=True),
# Will change it to non-nullable after other driver report it.
'rp_uuid': object_fields.UUIDField(nullable=True),
# UUID of the Resource provider corresponding to this deployable
'bitstream_id': object_fields.UUIDField(nullable=True),
}
def _get_parent_root_id(self, context):
obj_dep = Deployable.get_by_id(context, self.parent_id)
return obj_dep.root_id
def create(self, context):
"""Create a Deployable record in the DB."""
# FIXME: Add parent_uuid and root_uuid constrains when DB change to
# parent_uuid & root_uuid
values = self.obj_get_changes()
db_dep = self.dbapi.deployable_create(context, values)
self._from_db_object(self, db_dep)
self.obj_reset_changes()
@classmethod
def get(cls, context, uuid):
"""Find a DB Deployable and return an Obj Deployable."""
db_dep = cls.dbapi.deployable_get(context, uuid)
obj_dep = cls._from_db_object(cls(context), db_dep)
obj_dep.obj_reset_changes()
return obj_dep
@classmethod
def get_by_id(cls, context, id):
"""Find a DB Deployable and return an Obj Deployable."""
dpl_query = {"id": id}
obj_dep = Deployable.get_by_filter(context, dpl_query)[0]
obj_dep.obj_reset_changes()
return obj_dep
@classmethod
def get_by_device_rp_uuid(cls, context, devrp_uuid):
db_dep = cls.dbapi.deployable_get_by_rp_uuid(context, devrp_uuid)
obj_dep = cls._from_db_object(cls(context), db_dep)
return obj_dep
@classmethod
def list(cls, context, filters=None):
"""Return a list of Deployable objects."""
if filters:
sort_dir = filters.pop('sort_dir', 'desc')
sort_key = filters.pop('sort_key', 'created_at')
limit = filters.pop('limit', None)
marker = filters.pop('marker_obj', None)
db_deps = cls.dbapi.deployable_get_by_filters(context,
filters,
sort_dir=sort_dir,
sort_key=sort_key,
limit=limit,
marker=marker)
else:
db_deps = cls.dbapi.deployable_list(context)
obj_dpl_list = cls._from_db_object_list(db_deps, context)
return obj_dpl_list
def save(self, context):
"""Update a Deployable record in the DB."""
updates = self.obj_get_changes()
# TODO(Xinran): Will remove this if find some better way.
updates.pop("uuid", None)
updates.pop("created_at", None)
if "updated_at" in updates.keys() and \
updates["updated_at"] is not None:
updates["updated_at"] = updates["updated_at"].replace(tzinfo=None)
db_dep = self.dbapi.deployable_update(context, self.uuid, updates)
self.obj_reset_changes()
self._from_db_object(self, db_dep)
def update(self, context, updates):
"""Update provided key, value pairs"""
self.dbapi.deployable_update(context, self.uuid, updates)
def destroy(self, context):
"""Delete a Deployable from the DB."""
self.dbapi.deployable_delete(context, self.uuid)
self.obj_reset_changes()
@classmethod
def get_by_filter(cls, context, filters):
obj_dpl_list = []
db_dpl_list = cls.dbapi.deployable_get_by_filters(context, filters)
if db_dpl_list:
for db_dpl in db_dpl_list:
obj_dpl = cls._from_db_object(cls(context), db_dpl)
obj_dpl_list.append(obj_dpl)
return obj_dpl_list
@classmethod
def get_list_by_device_id(cls, context, device_id):
dep_filter = {'device_id': device_id}
dep_obj_list = Deployable.list(context, dep_filter)
return dep_obj_list
@classmethod
def get_by_name_deviceid(cls, context, name, device_id):
dep_filter = {'name': name, 'device_id': device_id}
dep_obj_list = Deployable.list(context, dep_filter)
if len(dep_obj_list) != 0:
return dep_obj_list[0]
else:
return None
@classmethod
def get_by_name(cls, context, name):
dep_filter = {'name': name}
dep_obj_list = Deployable.list(context, dep_filter)
if len(dep_obj_list) != 0:
return dep_obj_list[0]
else:
return None
def get_cpid_list(self, context):
query_filter = {"device_id": self.device_id}
# TODO(Sundar) We should probably get cpid from objects layer,
# not db layer
cpid_list = self.dbapi.control_path_get_by_filters(
context, query_filter)
return cpid_list
class Deployable(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '2.0'
dbapi = dbapi.get_instance()
attributes_list = []
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'parent_id': object_fields.IntegerField(nullable=True),
# parent_id refers to the id of the deployable's parent node
'root_id': object_fields.IntegerField(nullable=True),
# root_id refers to the id of the deployable's root to for nested tree
'name': object_fields.StringField(nullable=False),
# name of the deployable
'num_accelerators': object_fields.IntegerField(nullable=False),
# number of accelerators spawned by this deployable
'device_id': object_fields.IntegerField(nullable=False)
# Foreign key constrain to reference device table
}
def _get_parent_root_id(self, context):
obj_dep = Deployable.get_by_id(context, self.parent_id)
return obj_dep.root_id
def create(self, context):
"""Create a Deployable record in the DB."""
# FIXME: Add parent_uuid and root_uuid constrains when DB change to
# parent_uuid & root_uuid
values = self.obj_get_changes()
db_dep = self.dbapi.deployable_create(context, values)
self._from_db_object(self, db_dep)
self.obj_reset_changes()
del self.attributes_list[:]
@classmethod
def get(cls, context, uuid, with_attribute_list=True):
"""Find a DB Deployable and return an Obj Deployable."""
db_dep = cls.dbapi.deployable_get(context, uuid)
obj_dep = cls._from_db_object(cls(context), db_dep)
# retrieve all the attributes for this deployable
if with_attribute_list:
query = {"deployable_id": obj_dep.id}
attr_get_list = Attribute.get_by_filter(context,
query)
obj_dep.attributes_list = attr_get_list
obj_dep.obj_reset_changes()
return obj_dep
@classmethod
def get_by_id(cls, context, id):
"""Find a DB Deployable and return an Obj Deployable."""
dpl_query = {"id": id}
obj_dep = Deployable.get_by_filter(context, dpl_query)[0]
obj_dep.obj_reset_changes()
return obj_dep
@classmethod
def list(cls, context, filters={}):
"""Return a list of Deployable objects."""
if filters:
sort_dir = filters.pop('sort_dir', 'desc')
sort_key = filters.pop('sort_key', 'created_at')
limit = filters.pop('limit', None)
marker = filters.pop('marker_obj', None)
db_deps = cls.dbapi.deployable_get_by_filters(context, filters,
sort_dir=sort_dir,
sort_key=sort_key,
limit=limit,
marker=marker)
else:
db_deps = cls.dbapi.deployable_list(context)
obj_dpl_list = cls._from_db_object_list(db_deps, context)
for obj_dpl in obj_dpl_list:
query = {"deployable_id": obj_dpl.id}
attr_get_list = Attribute.get_by_filter(context,
query)
obj_dpl.attributes_list = attr_get_list
return obj_dpl_list
def save(self, context):
"""Update a Deployable record in the DB."""
updates = self.obj_get_changes()
db_dep = self.dbapi.deployable_update(context, self.uuid, updates)
self.obj_reset_changes()
self._from_db_object(self, db_dep)
query = {"deployable_id": self.id}
attr_get_list = Attribute.get_by_filter(context,
query)
self.attributes_list = attr_get_list
def destroy(self, context):
"""Delete a Deployable from the DB."""
del self.attributes_list[:]
self.dbapi.deployable_delete(context, self.uuid)
self.obj_reset_changes()
def add_attribute(self, context, key, value):
"""Add an attribute object to the attribute_list.
If the attribute already exists, it will update the value,
otherwise, the attribute will be appended to the list
"""
for exist_attr in self.attributes_list:
if key == exist_attr.key:
LOG.warning("The attribute already exists")
if value != exist_attr.value:
exist_attr.value = value
exist_attr.save(context)
return None
# The attribute does not exist yet. Create it.
attr_vals = {
'deployable_id': self.id,
'key': key,
'value': value
}
attr = Attribute(context, **attr_vals)
attr.create(context)
self.attributes_list.append(attr)
def delete_attribute(self, context, attribute):
"""Remove an attribute from the attributes_list
if the attribute does not exist, ignore it
"""
idx = 0
for exist_attribute in self.attributes_list:
if base.obj_equal_prims(attribute, exist_attribute):
removed_attribute = self.attributes_list.pop(idx)
removed_attribute.destroy(context)
return
idx = idx + 1
LOG.warning("The removing attribute does not exist!")
@classmethod
def get_by_filter(cls, context,
filters):
obj_dpl_list = []
db_dpl_list = cls.dbapi.deployable_get_by_filters_with_attributes(
context,
filters)
if db_dpl_list:
for db_dpl in db_dpl_list:
obj_dpl = cls._from_db_object(cls(context), db_dpl)
query = {"deployable_id": obj_dpl.id}
attr_get_list = Attribute.get_by_filter(context,
query)
obj_dpl.attributes_list = attr_get_list
obj_dpl_list.append(obj_dpl)
return obj_dpl_list
@staticmethod
def _from_db_object(obj, db_obj):
"""Converts a deployable to a formal object.
:param obj: An object of the class.
:param db_obj: A DB model of the object
:return: The object of the class with the database entity added
"""
for field in obj.fields:
obj[field] = db_obj[field]
obj.attributes_list = []
return obj
@classmethod
def get_list_by_device_id(cls, context, device_id):
dep_filter = {'device_id': device_id}
dep_obj_list = Deployable.list(context, dep_filter)
return dep_obj_list
@classmethod
def get_by_name_deviceid(cls, context, name, device_id):
dep_filter = {'name': name, 'device_id': device_id}
dep_obj_list = Deployable.list(context, dep_filter)
if len(dep_obj_list) != 0:
return dep_obj_list[0]
else:
return None
class DeviceProfile(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.StringField(nullable=False),
'name': object_fields.StringField(nullable=False),
'groups': object_fields.ListOfDictOfNullableStringsField(),
}
def _to_profile_json(self, obj_changes):
if 'groups' in obj_changes: # Convert to profile_json string
d = {"groups": obj_changes['groups']}
profile_json = jsonutils.dumps(d)
obj_changes['profile_json'] = profile_json
obj_changes.pop('groups', None) # del 'groups'
else:
raise exception.DeviceProfileGroupsExpected()
def create(self, context):
"""Create a Device Profile record in the DB."""
# TODO() validate with a JSON schema
if 'name' not in self:
raise exception.ObjectActionError(action='create',
reason='name is required')
values = self.obj_get_changes()
self._to_profile_json(values)
db_devprof = self.dbapi.device_profile_create(context, values)
self._from_db_object(self, db_devprof)
@classmethod
def get_by_uuid(cls, context, uuid):
"""Find a DB Device_profile and return an Obj Device_profile."""
db_devprof = cls.dbapi.device_profile_get_by_uuid(context, uuid)
obj_devprof = cls._from_db_object(cls(context), db_devprof)
return obj_devprof
@classmethod
def get_by_name(cls, context, name):
"""Find a DB Device Profile and return an Obj Device Profile."""
db_devprof = cls.dbapi.device_profile_get(context, name)
obj_devprof = cls._from_db_object(cls(context), db_devprof)
return obj_devprof
@classmethod
def list(cls, context):
# TODO() add filters, limits, pagination, etc.
"""Return a list of Device Profile objects."""
db_devprofs = cls.dbapi.device_profile_list(context)
obj_dp_list = cls._from_db_object_list(db_devprofs, context)
return obj_dp_list
def save(self, context):
"""Update a Device Profile record in the DB."""
updates = self.obj_get_changes()
self._to_profile_json(updates)
db_devprof = self.dbapi.device_profile_update(context,
self.name, updates)
self._from_db_object(self, db_devprof)
def destroy(self, context):
"""Delete a Device Profile from the DB."""
self.dbapi.device_profile_delete(context, self.uuid)
self.obj_reset_changes()
@classmethod
def _from_db_object(cls, obj, db_obj):
"""Converts a device_profile to a formal object.
:param obj: An object of the class.
:param db_obj: A DB model of the object
:return: The object of the class with the database entity added
"""
# Convert from profile_json to 'groups' ListOfDictOfStrings
d = jsonutils.loads(db_obj['profile_json'])
db_obj['groups'] = d['groups']
obj = base.CyborgObject._from_db_object(obj, db_obj)
return obj
class Port(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'uuid': object_fields.UUIDField(nullable=False),
'computer_node': object_fields.UUIDField(nullable=False),
'phy_port_name': object_fields.StringField(nullable=True),
'pci_slot': object_fields.StringField(nullable=True),
'product_id': object_fields.StringField(nullable=True),
'vendor_id': object_fields.StringField(nullable=False),
'is_used': object_fields.IntegerField(nullable=False),
'accelerator_id': object_fields.UUIDField(nullable=True),
'bind_instance_id': object_fields.UUIDField(nullable=True),
'bind_port_id': object_fields.UUIDField(nullable=True),
'device_type': object_fields.StringField(nullable=True),
}
def __init__(self, *args, **kwargs):
super(Port, self).__init__(*args, **kwargs)
def create(self, context=None):
"""Create an Port record in the DB, this can be used by cyborg-agents
to auto register physical port of network cards."""
values = self.obj_get_changes()
db_port= self.dbapi.port_create(context, values)
self._from_db_object(self, db_port)
@classmethod
def get(cls, context, uuid):
"""Find a DB Port and return an Ojb Port."""
db_port = cls.dbapi.port_get(context, uuid)
obj_port = cls._from_db_object(cls(context), db_port)
return obj_port
@classmethod
def get(cls, context, phy_port_name, pci_slot, computer_node):
"""Return a list of Port objects."""
db_port = cls.dbapi.port_get(context, phy_port_name=phy_port_name,
pci_slot=pci_slot, computer_node=computer_node)
if db_port:
obj_port = cls._from_db_object(cls(context), db_port)
return obj_port
else:
return None
@classmethod
def list(cls, context, limit, marker, sort_key, sort_dir):
"""Return a list of Port objects."""
db_ports = cls.dbapi.port_list(context, limit, marker, sort_key,
sort_dir)
obj_ports = cls._from_db_object_list(context, db_ports)
return obj_ports
def save(self, context):
"""Update a Port record in the DB."""
updates = self.obj_get_changes()
db_port = self.dbapi.port_update(context, self.uuid, updates)
self._from_db_object(self, db_port)
def destory(self, context):
"""Delete the Port record in the DB."""
self.dbapi.port_destory(context, self.uuid)
self.obj_reset_changes()
class Device(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
# Version 1.1: Add AICHIP, GENERIC type
VERSION = '1.1'
dbapi = dbapi.get_instance()
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'type': object_fields.EnumField(valid_values=constants.DEVICE_TYPE,
nullable=False),
'vendor': object_fields.StringField(nullable=False),
'model': object_fields.StringField(nullable=False),
'std_board_info': object_fields.StringField(nullable=True),
'vendor_board_info': object_fields.StringField(nullable=True),
'hostname': object_fields.StringField(nullable=False),
}
def create(self, context):
"""Create a device record in the DB."""
values = self.obj_get_changes()
db_device = self.dbapi.device_create(context, values)
self._from_db_object(self, db_device)
@classmethod
def get(cls, context, uuid):
"""Find a DB Device and return an Obj Device."""
db_device = cls.dbapi.device_get(context, uuid)
obj_device = cls._from_db_object(cls(context), db_device)
return obj_device
@classmethod
def list(cls, context, filters=None):
"""Return a list of Device objects."""
if filters:
sort_dir = filters.pop('sort_dir', 'desc')
sort_key = filters.pop('sort_key', 'created_at')
limit = filters.pop('limit', None)
marker = filters.pop('marker_obj', None)
db_devices = cls.dbapi.device_list_by_filters(
context, filters, sort_dir=sort_dir, sort_key=sort_key,
limit=limit, marker=marker)
else:
db_devices = cls.dbapi.device_list(context)
return cls._from_db_object_list(db_devices, context)
def save(self, context):
"""Update a Device record in the DB."""
updates = self.obj_get_changes()
db_device = self.dbapi.device_update(context, self.uuid, updates)
self._from_db_object(self, db_device)
def destroy(self, context):
"""Delete the Device from the DB."""
self.dbapi.device_delete(context, self.uuid)
self.obj_reset_changes()
@classmethod
def get_list_by_hostname(cls, context, hostname):
"""get device object list from the hostname. return [] if not
exist.
"""
dev_filter = {'hostname': hostname}
device_obj_list = Device.list(context, dev_filter)
return device_obj_list
@classmethod
def get_by_device_id(cls, context, device_id):
"""get device object by the device ID."""
db_device = cls.dbapi.device_get_by_id(context, device_id)
obj_device = cls._from_db_object(cls(context), db_device)
return obj_device
class Deployable(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
attributes_list = []
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'name': object_fields.StringField(nullable=False),
'parent_uuid': object_fields.UUIDField(nullable=True),
# parent_uuid refers to the id of the VF's parent node
'root_uuid': object_fields.UUIDField(nullable=True),
# root_uuid refers to the id of the VF's root which has to be a PF
'address': object_fields.StringField(nullable=False),
# if interface_type is pci(/mdev), address is the pci_address(/path)
'host': object_fields.StringField(nullable=False),
'board': object_fields.StringField(nullable=False),
# board refers to a specific acc board type, e.g P100 GPU card
'vendor': object_fields.StringField(nullable=False),
'version': object_fields.StringField(nullable=False),
'type': object_fields.StringField(nullable=False),
# type of deployable, e.g, pf/vf/*f
'interface_type': object_fields.StringField(nullable=False),
# interface to hypervisor(libvirt), e.g, pci/mdev...
'assignable': object_fields.BooleanField(nullable=False),
# identify if an accelerator is in use
'instance_uuid': object_fields.UUIDField(nullable=True),
# The id of the virtualized accelerator instance
'availability': object_fields.StringField(nullable=False),
# identify the state of acc, e.g released/claimed/...
'accelerator_id': object_fields.IntegerField(nullable=False)
# Foreign key constrain to reference accelerator table
}
def _get_parent_root_uuid(self):
obj_dep = Deployable.get(None, self.parent_uuid)
return obj_dep.root_uuid
def create(self, context):
"""Create a Deployable record in the DB."""
if 'uuid' not in self:
raise exception.ObjectActionError(action='create',
reason='uuid is required')
if not hasattr(self, 'parent_uuid') or self.parent_uuid is None:
self.root_uuid = self.uuid
else:
self.root_uuid = self._get_parent_root_uuid()
values = self.obj_get_changes()
db_dep = self.dbapi.deployable_create(context, values)
self._from_db_object(self, db_dep)
del self.attributes_list[:]
@classmethod
def get(cls, context, uuid):
"""Find a DB Deployable and return an Obj Deployable."""
db_dep = cls.dbapi.deployable_get(context, uuid)
obj_dep = cls._from_db_object(cls(context), db_dep)
# retrieve all the attrobutes for this deployable
query = {"deployable_id": obj_dep.id}
attr_get_list = Attribute.get_by_filter(context, query)
obj_dep.attributes_list = attr_get_list
return obj_dep
@classmethod
def get_by_host(cls, context, host):
"""Get a Deployable by host."""
db_deps = cls.dbapi.deployable_get_by_host(context, host)
obj_dpl_list = cls._from_db_object_list(db_deps, context)
for obj_dpl in obj_dpl_list:
query = {"deployable_id": obj_dpl.id}
attr_get_list = Attribute.get_by_filter(context, query)
obj_dpl.attributes_list = attr_get_list
return obj_dpl_list
@classmethod
def list(cls, context, filters={}):
"""Return a list of Deployable objects."""
if filters:
sort_dir = filters.pop('sort_dir', 'desc')
sort_key = filters.pop('sort_key', 'create_at')
limit = filters.pop('limit', None)
marker = filters.pop('marker_obj', None)
db_deps = cls.dbapi.deployable_get_by_filters(context,
filters,
sort_dir=sort_dir,
sort_key=sort_key,
limit=limit,
marker=marker)
else:
db_deps = cls.dbapi.deployable_list(context)
obj_dpl_list = cls._from_db_object_list(db_deps, context)
for obj_dpl in obj_dpl_list:
query = {"deployable_id": obj_dpl.id}
attr_get_list = Attribute.get_by_filter(context, query)
obj_dpl.attributes_list = attr_get_list
return obj_dpl_list
def save(self, context):
"""Update a Deployable record in the DB."""
updates = self.obj_get_changes()
db_dep = self.dbapi.deployable_update(context, self.uuid, updates)
self._from_db_object(self, db_dep)
query = {"deployable_id": self.id}
attr_get_list = Attribute.get_by_filter(context, query)
self.attributes_list = attr_get_list
def destroy(self, context):
"""Delete a Deployable from the DB."""
del self.attributes_list[:]
self.dbapi.deployable_delete(context, self.uuid)
self.obj_reset_changes()
def add_attribute(self, context, key, value):
"""add a attribute object to the attribute_list.
If the attribute already exists, it will update the value,
otherwise, the vf will be appended to the list
"""
for exist_attr in self.attributes_list:
if key == exist_attr.key:
LOG.warning("The attribute already exists")
if value != exist_attr.value:
exist_attr.value = value
exist_attr.save(context)
return None
# The attribute does not exist yet. Create it.
attr_vals = {'deployable_id': self.id, 'key': key, 'value': value}
attr = Attribute(context, **attr_vals)
attr.create(context)
self.attributes_list.append(attr)
def delete_attribute(self, context, attribute):
"""remove an attribute from the attributes_list
if the attribute does not exist, ignore it
"""
idx = 0
for exist_attribute in self.attributes_list:
if base.obj_equal_prims(attribute, exist_attribute):
removed_attribute = self.attributes_list.pop(idx)
removed_attribute.destroy(context)
return
idx = idx + 1
LOG.warning("The removing attribute does not exist!")
@classmethod
def get_by_filter(cls, context, filters):
obj_dpl_list = []
db_dpl_list = cls.dbapi.deployable_get_by_filters_with_attributes(
context, filters)
if db_dpl_list:
for db_dpl in db_dpl_list:
obj_dpl = cls._from_db_object(cls(context), db_dpl)
query = {"deployable_id": obj_dpl.id}
attr_get_list = Attribute.get_by_filter(context, query)
obj_dpl.attributes_list = attr_get_list
obj_dpl_list.append(obj_dpl)
return obj_dpl_list
@classmethod
def _from_db_object(cls, obj, db_obj):
"""Converts a deployable to a formal object.
:param obj: An object of the class.
:param db_obj: A DB model of the object
:return: The object of the class with the database entity added
"""
obj = base.CyborgObject._from_db_object(obj, db_obj)
obj.attributes_list = []
return obj
class AttachHandle(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'deployable_id': object_fields.IntegerField(nullable=False),
'cpid_id': object_fields.IntegerField(nullable=False),
'attach_type': object_fields.EnumField(valid_values=ATTACH_TYPE,
nullable=False),
# attach_info should be JSON here.
'attach_info': object_fields.StringField(nullable=False),
'in_use': object_fields.BooleanField(nullable=False, default=False)
}
def create(self, context):
"""Create a AttachHandle record in the DB."""
values = self.obj_get_changes()
db_ah = self.dbapi.attach_handle_create(context, values)
self._from_db_object(self, db_ah)
@classmethod
def get(cls, context, uuid):
"""Find a DB AttachHandle and return an Obj AttachHandle."""
db_ah = cls.dbapi.attach_handle_get_by_uuid(context, uuid)
obj_ah = cls._from_db_object(cls(context), db_ah)
return obj_ah
@classmethod
def get_by_id(cls, context, id):
"""Find a DB AttachHandle by ID and return an Obj AttachHandle."""
db_ah = cls.dbapi.attach_handle_get_by_id(context, id)
obj_ah = cls._from_db_object(cls(context), db_ah)
return obj_ah
@classmethod
def list(cls, context, filters={}):
"""Return a list of AttachHandle objects."""
if filters:
sort_dir = filters.pop('sort_dir', 'desc')
sort_key = filters.pop('sort_key', 'created_at')
limit = filters.pop('limit', None)
marker = filters.pop('marker_obj', None)
db_ahs = cls.dbapi.attach_handle_get_by_filters(context, filters,
sort_dir=sort_dir,
sort_key=sort_key,
limit=limit,
marker=marker)
else:
db_ahs = cls.dbapi.attach_handle_list(context)
obj_ah_list = cls._from_db_object_list(db_ahs, context)
return obj_ah_list
def save(self, context):
"""Update an AttachHandle record in the DB"""
updates = self.obj_get_changes()
db_ahs = self.dbapi.attach_handle_update(context, self.uuid, updates)
self._from_db_object(self, db_ahs)
def destroy(self, context):
"""Delete a AttachHandle from the DB."""
self.dbapi.attach_handle_delete(context, self.uuid)
self.obj_reset_changes()
@classmethod
def get_ah_list_by_deployable_id(cls, context, deployable_id):
ah_filter = {'deployable_id': deployable_id}
ah_obj_list = AttachHandle.list(context, ah_filter)
return ah_obj_list
@classmethod
def get_ah_by_depid_attachinfo(cls, context, deployable_id, attach_info):
ah_filter = {'deployable_id': deployable_id,
'attach_info': attach_info}
ah_obj_list = AttachHandle.list(context, ah_filter)
if len(ah_obj_list) != 0:
return ah_obj_list[0]
else:
return None
class TestSubclassedObject(RandomMixInWithNoFields, MyObj):
fields = {'new_field': fields.StringField()}
class ControlpathID(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
# Version 1.1: Add cpid_info_obj
VERSION = '1.1'
dbapi = dbapi.get_instance()
fields = {
'id':
object_fields.IntegerField(nullable=False),
'uuid':
object_fields.UUIDField(nullable=False),
'device_id':
object_fields.IntegerField(nullable=False),
'cpid_type':
object_fields.EnumField(valid_values=constants.CPID_TYPE,
nullable=False),
'cpid_info':
object_fields.StringField(nullable=False)
}
@property
def cpid_info_obj(self):
return jsonutils.loads(self.cpid_info)
@cpid_info_obj.setter
def cpid_info_obj(self, cpid_info_obj):
self.cpid_info = jsonutils.dumps(cpid_info_obj)
def create(self, context):
"""Create a ControlPathID record in the DB."""
values = self.obj_get_changes()
db_cp = self.dbapi.control_path_create(context, values)
self._from_db_object(self, db_cp)
@classmethod
def get(cls, context, uuid):
"""Find a DB ControlpathID and return an Obj ControlpathID."""
db_cp = cls.dbapi.control_path_get_by_uuid(context, uuid)
obj_cp = cls._from_db_object(cls(context), db_cp)
return obj_cp
@classmethod
def list(cls, context, filters=None):
"""Return a list of ControlpathID objects."""
if filters:
sort_dir = filters.pop('sort_dir', 'desc')
sort_key = filters.pop('sort_key', 'created_at')
limit = filters.pop('limit', None)
marker = filters.pop('marker_obj', None)
db_cps = cls.dbapi.control_path_get_by_filters(context,
filters,
sort_dir=sort_dir,
sort_key=sort_key,
limit=limit,
marker=marker)
else:
db_cps = cls.dbapi.control_path_list(context)
obj_cp_list = cls._from_db_object_list(db_cps, context)
return obj_cp_list
def save(self, context):
"""Update an ControlpathID record in the DB"""
updates = self.obj_get_changes()
db_cps = self.dbapi.control_path_update(context, self.uuid, updates)
self._from_db_object(self, db_cps)
def destroy(self, context):
"""Delete a ControlpathID from the DB."""
self.dbapi.control_path_delete(context, self.uuid)
self.obj_reset_changes()
@classmethod
def get_by_device_id(cls, context, device_id):
# control_path is unique for one device.
cpid_filter = {'device_id': device_id}
cpid_obj_list = ControlpathID.list(context, cpid_filter)
if len(cpid_obj_list) != 0:
return cpid_obj_list[0]
else:
return None
@classmethod
def get_by_device_id_cpidinfo(cls, context, device_id, cpid_info):
cpid_filter = {'device_id': device_id, 'cpid_info': cpid_info}
# the list could have one value or is empty.
cpid_obj_list = ControlpathID.list(context, cpid_filter)
if len(cpid_obj_list) != 0:
return cpid_obj_list[0]
else:
return None
class Deployable(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
fields = {
'uuid': object_fields.UUIDField(nullable=False),
'name': object_fields.StringField(nullable=False),
'parent_uuid': object_fields.UUIDField(nullable=True),
# parent_uuid refers to the id of the VF's parent node
'root_uuid': object_fields.UUIDField(nullable=True),
# root_uuid refers to the id of the VF's root which has to be a PF
'pcie_address': object_fields.StringField(nullable=False),
'host': object_fields.StringField(nullable=False),
'board': object_fields.StringField(nullable=False),
# board refers to a specific acc board type, e.g P100 GPU card
'vendor': object_fields.StringField(nullable=False),
'version': object_fields.StringField(nullable=False),
'type': object_fields.StringField(nullable=False),
# similar to the acc_type in accelerator.py
'assignable': object_fields.BooleanField(nullable=False),
# identify if an accelerator is in use
'instance_uuid': object_fields.UUIDField(nullable=True),
# The id of the virtualized accelerator instance
'availability': object_fields.StringField(nullable=False),
# identify the state of acc, e.g released/claimed/...
}
def _get_parent_root_uuid(self):
obj_dep = Deployable.get(None, self.parent_uuid)
return obj_dep.root_uuid
def create(self, context):
"""Create a Deployable record in the DB."""
if 'uuid' not in self:
raise exception.ObjectActionError(action='create',
reason='uuid is required')
if self.parent_uuid is None:
self.root_uuid = self.uuid
else:
self.root_uuid = self._get_parent_root_uuid()
values = self.obj_get_changes()
db_dep = self.dbapi.deployable_create(context, values)
self._from_db_object(self, db_dep)
@classmethod
def get(cls, context, uuid):
"""Find a DB Deployable and return an Obj Deployable."""
db_dep = cls.dbapi.deployable_get(context, uuid)
obj_dep = cls._from_db_object(cls(context), db_dep)
return obj_dep
@classmethod
def get_by_host(cls, context, host):
"""Get a Deployable by host."""
db_deps = cls.dbapi.deployable_get_by_host(context, host)
return cls._from_db_object_list(db_deps, context)
@classmethod
def list(cls, context):
"""Return a list of Deployable objects."""
db_deps = cls.dbapi.deployable_list(context)
return cls._from_db_object_list(db_deps, context)
def save(self, context):
"""Update a Deployable record in the DB."""
updates = self.obj_get_changes()
db_dep = self.dbapi.deployable_update(context, self.uuid, updates)
self._from_db_object(self, db_dep)
def destroy(self, context):
"""Delete a Deployable from the DB."""
self.dbapi.deployable_delete(context, self.uuid)
self.obj_reset_changes()
