class VolumeAttachment(base.CinderPersistentObject, base.CinderObject,
base.CinderObjectDictCompat,
base.CinderComparableObject):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'id': fields.UUIDField(),
'volume_id': fields.UUIDField(),
'instance_uuid': fields.UUIDField(nullable=True),
'attached_host': fields.StringField(nullable=True),
'mountpoint': fields.StringField(nullable=True),
'attach_time': fields.DateTimeField(nullable=True),
'detach_time': fields.DateTimeField(nullable=True),
'attach_status': c_fields.VolumeAttachStatusField(nullable=True),
'attach_mode': fields.StringField(nullable=True),
}
@staticmethod
def _from_db_object(context, attachment, db_attachment):
for name, field in attachment.fields.items():
value = db_attachment.get(name)
if isinstance(field, fields.IntegerField):
value = value or 0
attachment[name] = value
attachment._context = context
attachment.obj_reset_changes()
return attachment
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
db.volume_attachment_update(self._context, self.id, updates)
self.obj_reset_changes()
class VolumeAttachment(base.CinderPersistentObject, base.CinderObject,
base.CinderObjectDictCompat,
base.CinderComparableObject):
# Version 1.0: Initial version
VERSION = '1.0'
fields = {
'id': fields.UUIDField(),
'volume_id': fields.UUIDField(),
'instance_uuid': fields.UUIDField(nullable=True),
'attached_host': fields.StringField(nullable=True),
'mountpoint': fields.StringField(nullable=True),
'attach_time': fields.DateTimeField(nullable=True),
'detach_time': fields.DateTimeField(nullable=True),
'attach_status': c_fields.VolumeAttachStatusField(nullable=True),
'attach_mode': fields.StringField(nullable=True),
}
@staticmethod
def _from_db_object(context, attachment, db_attachment):
for name, field in attachment.fields.items():
value = db_attachment.get(name)
if isinstance(field, fields.IntegerField):
value = value or 0
attachment[name] = value
attachment._context = context
attachment.obj_reset_changes()
return attachment
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
db.volume_attachment_update(self._context, self.id, updates)
self.obj_reset_changes()
def finish_attach(self,
instance_uuid,
host_name,
mount_point,
attach_mode='rw'):
with self.obj_as_admin():
db_volume, updated_values = db.volume_attached(
self._context, self.id, instance_uuid, host_name, mount_point,
attach_mode)
self.update(updated_values)
self.obj_reset_changes(updated_values.keys())
return objects.Volume._from_db_object(self._context, objects.Volume(),
db_volume)
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already created'))
updates = self.cinder_obj_get_changes()
with self.obj_as_admin():
db_attachment = db.volume_attach(self._context, updates)
self._from_db_object(self._context, self, db_attachment)
def setUp(self):
super(TestVolumeAttachStatus, self).setUp()
self.field = fields.VolumeAttachStatusField()
self.coerce_good_values = [
('attaching', fields.VolumeAttachStatus.ATTACHING),
('attached', fields.VolumeAttachStatus.ATTACHED),
('detached', fields.VolumeAttachStatus.DETACHED),
('error_attaching', fields.VolumeAttachStatus.ERROR_ATTACHING),
('error_detaching', fields.VolumeAttachStatus.ERROR_DETACHING)
]
self.coerce_bad_values = ['acme']
self.to_primitive_values = self.coerce_good_values[0:1]
self.from_primitive_values = self.coerce_good_values[0:1]
class Volume(cleanable.CinderCleanableObject, base.CinderObject,
base.CinderObjectDictCompat, base.CinderComparableObject,
base.ClusteredObject):
# Version 1.0: Initial version
# Version 1.1: Added metadata, admin_metadata, volume_attachment, and
# volume_type
# Version 1.2: Added glance_metadata, consistencygroup and snapshots
# Version 1.3: Added finish_volume_migration()
# Version 1.4: Added cluster fields
# Version 1.5: Added group
# Version 1.6: This object is now cleanable (adds rows to workers table)
# Version 1.7: Added service_uuid
# Version 1.8: Added shared_targets
VERSION = '1.8'
OPTIONAL_FIELDS = ('metadata', 'admin_metadata', 'glance_metadata',
'volume_type', 'volume_attachment', 'consistencygroup',
'snapshots', 'cluster', 'group')
fields = {
'id': fields.UUIDField(),
'_name_id': fields.UUIDField(nullable=True),
'ec2_id': fields.UUIDField(nullable=True),
'user_id': fields.StringField(nullable=True),
'project_id': fields.StringField(nullable=True),
'snapshot_id': fields.UUIDField(nullable=True),
'cluster_name': fields.StringField(nullable=True),
'cluster': fields.ObjectField('Cluster', nullable=True,
read_only=True),
'host': fields.StringField(nullable=True),
'size': fields.IntegerField(nullable=True),
'availability_zone': fields.StringField(nullable=True),
'status': fields.StringField(nullable=True),
'attach_status': c_fields.VolumeAttachStatusField(nullable=True),
'migration_status': fields.StringField(nullable=True),
'scheduled_at': fields.DateTimeField(nullable=True),
'launched_at': fields.DateTimeField(nullable=True),
'terminated_at': fields.DateTimeField(nullable=True),
'display_name': fields.StringField(nullable=True),
'display_description': fields.StringField(nullable=True),
'provider_id': fields.StringField(nullable=True),
'provider_location': fields.StringField(nullable=True),
'provider_auth': fields.StringField(nullable=True),
'provider_geometry': fields.StringField(nullable=True),
'volume_type_id': fields.UUIDField(nullable=True),
'source_volid': fields.UUIDField(nullable=True),
'encryption_key_id': fields.UUIDField(nullable=True),
'consistencygroup_id': fields.UUIDField(nullable=True),
'group_id': fields.UUIDField(nullable=True),
'deleted': fields.BooleanField(default=False, nullable=True),
'bootable': fields.BooleanField(default=False, nullable=True),
'multiattach': fields.BooleanField(default=False, nullable=True),
'replication_status': fields.StringField(nullable=True),
'replication_extended_status': fields.StringField(nullable=True),
'replication_driver_data': fields.StringField(nullable=True),
'previous_status': fields.StringField(nullable=True),
'metadata': fields.DictOfStringsField(nullable=True),
'admin_metadata': fields.DictOfStringsField(nullable=True),
'glance_metadata': fields.DictOfStringsField(nullable=True),
'volume_type': fields.ObjectField('VolumeType', nullable=True),
'volume_attachment': fields.ObjectField('VolumeAttachmentList',
nullable=True),
'consistencygroup': fields.ObjectField('ConsistencyGroup',
nullable=True),
'snapshots': fields.ObjectField('SnapshotList', nullable=True),
'group': fields.ObjectField('Group', nullable=True),
'service_uuid': fields.StringField(nullable=True),
'shared_targets': fields.BooleanField(default=True, nullable=True),
}
# NOTE(thangp): obj_extra_fields is used to hold properties that are not
# usually part of the model
obj_extra_fields = ['name', 'name_id', 'volume_metadata',
'volume_admin_metadata', 'volume_glance_metadata']
@classmethod
def _get_expected_attrs(cls, context, *args, **kwargs):
expected_attrs = ['metadata', 'volume_type', 'volume_type.extra_specs']
if context.is_admin:
expected_attrs.append('admin_metadata')
return expected_attrs
@property
def name_id(self):
return self.id if not self._name_id else self._name_id
@name_id.setter
def name_id(self, value):
self._name_id = value
@property
def name(self):
return CONF.volume_name_template % self.name_id
# TODO(dulek): Three properties below are for compatibility with dict
# representation of volume. The format there is different (list of
# SQLAlchemy models) so we need a conversion. Anyway - these should be
# removed when we stop this class from deriving from DictObjectCompat.
@property
def volume_metadata(self):
md = [MetadataObject(k, v) for k, v in self.metadata.items()]
return md
@volume_metadata.setter
def volume_metadata(self, value):
md = {d['key']: d['value'] for d in value}
self.metadata = md
@property
def volume_admin_metadata(self):
md = [MetadataObject(k, v) for k, v in self.admin_metadata.items()]
return md
@volume_admin_metadata.setter
def volume_admin_metadata(self, value):
md = {d['key']: d['value'] for d in value}
self.admin_metadata = md
@property
def volume_glance_metadata(self):
md = [MetadataObject(k, v) for k, v in self.glance_metadata.items()]
return md
@volume_glance_metadata.setter
def volume_glance_metadata(self, value):
md = {d['key']: d['value'] for d in value}
self.glance_metadata = md
def __init__(self, *args, **kwargs):
super(Volume, self).__init__(*args, **kwargs)
self._reset_metadata_tracking()
def obj_reset_changes(self, fields=None):
super(Volume, self).obj_reset_changes(fields)
self._reset_metadata_tracking(fields=fields)
@classmethod
def _obj_from_primitive(cls, context, objver, primitive):
obj = super(Volume, Volume)._obj_from_primitive(context, objver,
primitive)
obj._reset_metadata_tracking()
return obj
def _reset_metadata_tracking(self, fields=None):
if fields is None or 'metadata' in fields:
self._orig_metadata = (dict(self.metadata)
if 'metadata' in self else {})
if fields is None or 'admin_metadata' in fields:
self._orig_admin_metadata = (dict(self.admin_metadata)
if 'admin_metadata' in self
else {})
if fields is None or 'glance_metadata' in fields:
self._orig_glance_metadata = (dict(self.glance_metadata)
if 'glance_metadata' in self
else {})
def obj_what_changed(self):
changes = super(Volume, self).obj_what_changed()
if 'metadata' in self and self.metadata != self._orig_metadata:
changes.add('metadata')
if ('admin_metadata' in self and
self.admin_metadata != self._orig_admin_metadata):
changes.add('admin_metadata')
if ('glance_metadata' in self and
self.glance_metadata != self._orig_glance_metadata):
changes.add('glance_metadata')
return changes
def obj_make_compatible(self, primitive, target_version):
"""Make a Volume representation compatible with a target version."""
added_fields = (((1, 4), ('cluster', 'cluster_name')),
((1, 5), ('group', 'group_id')),
((1, 7), ('service_uuid')))
# Convert all related objects
super(Volume, self).obj_make_compatible(primitive, target_version)
target_version = versionutils.convert_version_to_tuple(target_version)
for version, remove_fields in added_fields:
if target_version < version:
for obj_field in remove_fields:
primitive.pop(obj_field, None)
@classmethod
def _from_db_object(cls, context, volume, db_volume, expected_attrs=None):
if expected_attrs is None:
expected_attrs = []
for name, field in volume.fields.items():
if name in cls.OPTIONAL_FIELDS:
continue
value = db_volume.get(name)
if isinstance(field, fields.IntegerField):
value = value or 0
volume[name] = value
# Get data from db_volume object that was queried by joined query
# from DB
if 'metadata' in expected_attrs:
metadata = db_volume.get('volume_metadata', [])
volume.metadata = {item['key']: item['value'] for item in metadata}
if 'admin_metadata' in expected_attrs:
metadata = db_volume.get('volume_admin_metadata', [])
volume.admin_metadata = {item['key']: item['value']
for item in metadata}
if 'glance_metadata' in expected_attrs:
metadata = db_volume.get('volume_glance_metadata', [])
volume.glance_metadata = {item['key']: item['value']
for item in metadata}
if 'volume_type' in expected_attrs:
db_volume_type = db_volume.get('volume_type')
if db_volume_type:
vt_expected_attrs = []
if 'volume_type.extra_specs' in expected_attrs:
vt_expected_attrs.append('extra_specs')
volume.volume_type = objects.VolumeType._from_db_object(
context, objects.VolumeType(), db_volume_type,
expected_attrs=vt_expected_attrs)
if 'volume_attachment' in expected_attrs:
attachments = base.obj_make_list(
context, objects.VolumeAttachmentList(context),
objects.VolumeAttachment,
db_volume.get('volume_attachment'))
volume.volume_attachment = attachments
if volume.consistencygroup_id and 'consistencygroup' in expected_attrs:
consistencygroup = objects.ConsistencyGroup(context)
consistencygroup._from_db_object(context,
consistencygroup,
db_volume['consistencygroup'])
volume.consistencygroup = consistencygroup
if 'snapshots' in expected_attrs:
snapshots = base.obj_make_list(
context, objects.SnapshotList(context),
objects.Snapshot,
db_volume['snapshots'])
volume.snapshots = snapshots
if 'cluster' in expected_attrs:
db_cluster = db_volume.get('cluster')
# If this volume doesn't belong to a cluster the cluster field in
# the ORM instance will have value of None.
if db_cluster:
volume.cluster = objects.Cluster(context)
objects.Cluster._from_db_object(context, volume.cluster,
db_cluster)
else:
volume.cluster = None
if volume.group_id and 'group' in expected_attrs:
group = objects.Group(context)
group._from_db_object(context,
group,
db_volume['group'])
volume.group = group
volume._context = context
volume.obj_reset_changes()
return volume
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already created'))
updates = self.cinder_obj_get_changes()
if 'consistencygroup' in updates:
raise exception.ObjectActionError(
action='create', reason=_('consistencygroup assigned'))
if 'snapshots' in updates:
raise exception.ObjectActionError(
action='create', reason=_('snapshots assigned'))
if 'cluster' in updates:
raise exception.ObjectActionError(
action='create', reason=_('cluster assigned'))
if 'group' in updates:
raise exception.ObjectActionError(
action='create', reason=_('group assigned'))
if ('volume_type_id' not in updates or
updates['volume_type_id'] is None):
updates['volume_type_id'] = (
volume_types.get_default_volume_type()['id'])
db_volume = db.volume_create(self._context, updates)
self._from_db_object(self._context, self, db_volume)
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
# NOTE(xyang): Allow this to pass if 'consistencygroup' is
# set to None. This is to support backward compatibility.
# Also remove 'consistencygroup' from updates because
# consistencygroup is the name of a relationship in the ORM
# Volume model, so SQLA tries to do some kind of update of
# the foreign key based on the provided updates if
# 'consistencygroup' is in updates.
if updates.pop('consistencygroup', None):
raise exception.ObjectActionError(
action='save', reason=_('consistencygroup changed'))
if 'group' in updates:
raise exception.ObjectActionError(
action='save', reason=_('group changed'))
if 'glance_metadata' in updates:
raise exception.ObjectActionError(
action='save', reason=_('glance_metadata changed'))
if 'snapshots' in updates:
raise exception.ObjectActionError(
action='save', reason=_('snapshots changed'))
if 'cluster' in updates:
raise exception.ObjectActionError(
action='save', reason=_('cluster changed'))
if 'metadata' in updates:
# Metadata items that are not specified in the
# self.metadata will be deleted
metadata = updates.pop('metadata', None)
self.metadata = db.volume_metadata_update(self._context,
self.id, metadata,
True)
if self._context.is_admin and 'admin_metadata' in updates:
metadata = updates.pop('admin_metadata', None)
self.admin_metadata = db.volume_admin_metadata_update(
self._context, self.id, metadata, True)
# When we are creating a volume and we change from 'creating'
# status to 'downloading' status we have to change the worker entry
# in the DB to reflect this change, otherwise the cleanup will
# not be performed as it will be mistaken for a volume that has
# been somehow changed (reset status, forced operation...)
if updates.get('status') == 'downloading':
self.set_worker()
# updates are changed after popping out metadata.
if updates:
db.volume_update(self._context, self.id, updates)
self.obj_reset_changes()
def destroy(self):
with self.obj_as_admin():
updated_values = db.volume_destroy(self._context, self.id)
self.update(updated_values)
self.obj_reset_changes(updated_values.keys())
def obj_load_attr(self, attrname):
if attrname not in self.OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
if attrname == 'metadata':
self.metadata = db.volume_metadata_get(self._context, self.id)
elif attrname == 'admin_metadata':
self.admin_metadata = {}
if self._context.is_admin:
self.admin_metadata = db.volume_admin_metadata_get(
self._context, self.id)
elif attrname == 'glance_metadata':
try:
# NOTE(dulek): We're using alias here to have conversion from
# list to dict done there.
self.volume_glance_metadata = db.volume_glance_metadata_get(
self._context, self.id)
except exception.GlanceMetadataNotFound:
# NOTE(dulek): DB API raises when volume has no
# glance_metadata. Silencing this because at this level no
# metadata is a completely valid result.
self.glance_metadata = {}
elif attrname == 'volume_type':
# If the volume doesn't have volume_type, VolumeType.get_by_id
# would trigger a db call which raise VolumeTypeNotFound exception.
self.volume_type = (objects.VolumeType.get_by_id(
self._context, self.volume_type_id) if self.volume_type_id
else None)
elif attrname == 'volume_attachment':
attachments = objects.VolumeAttachmentList.get_all_by_volume_id(
self._context, self.id)
self.volume_attachment = attachments
elif attrname == 'consistencygroup':
if self.consistencygroup_id is None:
self.consistencygroup = None
else:
consistencygroup = objects.ConsistencyGroup.get_by_id(
self._context, self.consistencygroup_id)
self.consistencygroup = consistencygroup
elif attrname == 'snapshots':
self.snapshots = objects.SnapshotList.get_all_for_volume(
self._context, self.id)
elif attrname == 'cluster':
# If this volume doesn't belong to a cluster (cluster_name is
# empty), then cluster field will be None.
if self.cluster_name:
self.cluster = objects.Cluster.get_by_id(
self._context, name=self.cluster_name)
else:
self.cluster = None
elif attrname == 'group':
if self.group_id is None:
self.group = None
else:
group = objects.Group.get_by_id(
self._context, self.group_id)
self.group = group
self.obj_reset_changes(fields=[attrname])
def delete_metadata_key(self, key):
db.volume_metadata_delete(self._context, self.id, key)
md_was_changed = 'metadata' in self.obj_what_changed()
del self.metadata[key]
self._orig_metadata.pop(key, None)
if not md_was_changed:
self.obj_reset_changes(['metadata'])
def finish_volume_migration(self, dest_volume):
# We swap fields between source (i.e. self) and destination at the
# end of migration because we want to keep the original volume id
# in the DB but now pointing to the migrated volume.
skip = ({'id', 'provider_location', 'glance_metadata',
'volume_type'} | set(self.obj_extra_fields))
for key in set(dest_volume.fields.keys()) - skip:
# Only swap attributes that are already set. We do not want to
# unexpectedly trigger a lazy-load.
if not dest_volume.obj_attr_is_set(key):
continue
value = getattr(dest_volume, key)
value_to_dst = getattr(self, key)
# Destination must have a _name_id since the id no longer matches
# the volume. If it doesn't have a _name_id we set one.
if key == '_name_id':
if not dest_volume._name_id:
setattr(dest_volume, key, self.id)
continue
elif key == 'migration_status':
value = None
value_to_dst = 'deleting'
elif key == 'display_description':
value_to_dst = 'migration src for ' + self.id
elif key == 'status':
value_to_dst = 'deleting'
# Because dest_volume will be deleted soon, we can
# skip to copy volume_type_id and volume_type which
# are not keys for volume deletion.
elif key == 'volume_type_id':
# Initialize volume_type of source volume using
# new volume_type_id.
self.update({'volume_type_id': value})
continue
setattr(self, key, value)
setattr(dest_volume, key, value_to_dst)
self.save()
dest_volume.save()
return dest_volume
def get_latest_snapshot(self):
"""Get volume's latest snapshot"""
snapshot_db = db.snapshot_get_latest_for_volume(self._context, self.id)
snapshot = objects.Snapshot(self._context)
return snapshot._from_db_object(self._context,
snapshot, snapshot_db)
@staticmethod
def _is_cleanable(status, obj_version):
# Before 1.6 we didn't have workers table, so cleanup wasn't supported.
# cleaning.
if obj_version and obj_version < 1.6:
return False
return status in ('creating', 'deleting', 'uploading', 'downloading')
def begin_attach(self, attach_mode):
attachment = objects.VolumeAttachment(
context=self._context,
attach_status=c_fields.VolumeAttachStatus.ATTACHING,
volume_id=self.id)
attachment.create()
with self.obj_as_admin():
self.admin_metadata['attached_mode'] = attach_mode
self.save()
return attachment
def finish_detach(self, attachment_id):
with self.obj_as_admin():
volume_updates, attachment_updates = (
db.volume_detached(self._context, self.id, attachment_id))
db.volume_admin_metadata_delete(self._context, self.id,
'attached_mode')
self.admin_metadata.pop('attached_mode', None)
# Remove attachment in volume only when this field is loaded.
if attachment_updates and self.obj_attr_is_set('volume_attachment'):
for i, attachment in enumerate(self.volume_attachment):
if attachment.id == attachment_id:
del self.volume_attachment.objects[i]
break
self.update(volume_updates)
self.obj_reset_changes(
list(volume_updates.keys()) +
['volume_attachment', 'admin_metadata'])
def is_replicated(self):
return self.volume_type and self.volume_type.is_replicated()
def is_multiattach(self):
return self.volume_type and self.volume_type.is_multiattach()
class VolumeAttachment(base.CinderPersistentObject, base.CinderObject,
base.CinderObjectDictCompat,
base.CinderComparableObject):
# Version 1.0: Initial version
# Version 1.1: Added volume relationship
# Version 1.2: Added connection_info attribute
# Version 1.3: Added the connector attribute.
VERSION = '1.3'
OPTIONAL_FIELDS = ['volume']
obj_extra_fields = ['project_id', 'volume_host']
fields = {
'id': fields.UUIDField(),
'volume_id': fields.UUIDField(),
'instance_uuid': fields.UUIDField(nullable=True),
'attached_host': fields.StringField(nullable=True),
'mountpoint': fields.StringField(nullable=True),
'attach_time': fields.DateTimeField(nullable=True),
'detach_time': fields.DateTimeField(nullable=True),
'attach_status': c_fields.VolumeAttachStatusField(nullable=True),
'attach_mode': fields.StringField(nullable=True),
'volume': fields.ObjectField('Volume', nullable=False),
'connection_info': c_fields.DictOfNullableField(nullable=True),
'connector': c_fields.DictOfNullableField(nullable=True)
}
@property
def project_id(self):
return self.volume.project_id
@property
def volume_host(self):
return self.volume.host
@classmethod
def _get_expected_attrs(cls, context, *args, **kwargs):
return ['volume']
def obj_make_compatible(self, primitive, target_version):
"""Make an object representation compatible with target version."""
super(VolumeAttachment,
self).obj_make_compatible(primitive, target_version)
target_version = versionutils.convert_version_to_tuple(target_version)
if target_version < (1, 3):
primitive.pop('connector', None)
if target_version < (1, 2):
primitive.pop('connection_info', None)
@classmethod
def _from_db_object(cls,
context,
attachment,
db_attachment,
expected_attrs=None):
if expected_attrs is None:
expected_attrs = cls._get_expected_attrs(context)
for name, field in attachment.fields.items():
if name in cls.OPTIONAL_FIELDS:
continue
value = db_attachment.get(name)
if isinstance(field, fields.IntegerField):
value = value or 0
if name in ('connection_info', 'connector'):
# Both of these fields are nullable serialized json dicts.
setattr(attachment, name,
jsonutils.loads(value) if value else None)
else:
attachment[name] = value
# NOTE: hasattr check is necessary to avoid doing a lazy loading when
# loading VolumeList.get_all: Getting a Volume loads its
# VolumeAttachmentList, which think they have the volume loaded, but
# they don't. More detail on https://review.openstack.org/632549
if 'volume' in expected_attrs and hasattr(db_attachment, 'volume'):
db_volume = db_attachment.volume
if db_volume:
attachment.volume = objects.Volume._from_db_object(
context, objects.Volume(), db_volume)
attachment._context = context
attachment.obj_reset_changes()
# This is an online data migration which we should remove when enough
# time has passed and we have a blocker schema migration to check to
# make sure that the attachment_specs table is empty. Operators should
# run the "cinder-manage db online_data_migrations" CLI to force the
# migration on-demand.
connector = db.attachment_specs_get(context, attachment.id)
if connector:
# Update ourselves and delete the attachment_specs.
attachment.connector = connector
attachment.save()
# TODO(mriedem): Really need a delete-all method for this.
for spec_key in connector:
db.attachment_specs_delete(context, attachment.id, spec_key)
return attachment
def obj_load_attr(self, attrname):
if attrname not in self.OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
if attrname == 'volume':
volume = objects.Volume.get_by_id(self._context, self.volume_id)
self.volume = volume
self.obj_reset_changes(fields=[attrname])
@staticmethod
def _convert_connection_info_to_db_format(updates):
properties = updates.pop('connection_info', None)
if properties is not None:
updates['connection_info'] = jsonutils.dumps(properties)
@staticmethod
def _convert_connector_to_db_format(updates):
connector = updates.pop('connector', None)
if connector is not None:
updates['connector'] = jsonutils.dumps(connector)
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
if 'connection_info' in updates:
self._convert_connection_info_to_db_format(updates)
if 'connector' in updates:
self._convert_connector_to_db_format(updates)
if 'volume' in updates:
raise exception.ObjectActionError(action='save',
reason=_('volume changed'))
db.volume_attachment_update(self._context, self.id, updates)
self.obj_reset_changes()
def finish_attach(self,
instance_uuid,
host_name,
mount_point,
attach_mode='rw'):
with self.obj_as_admin():
db_volume, updated_values = db.volume_attached(
self._context, self.id, instance_uuid, host_name, mount_point,
attach_mode)
self.update(updated_values)
self.obj_reset_changes(updated_values.keys())
return objects.Volume._from_db_object(self._context, objects.Volume(),
db_volume)
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already created'))
updates = self.cinder_obj_get_changes()
if 'connector' in updates:
self._convert_connector_to_db_format(updates)
with self.obj_as_admin():
db_attachment = db.volume_attach(self._context, updates)
self._from_db_object(self._context, self, db_attachment)
def destroy(self):
updated_values = db.attachment_destroy(self._context, self.id)
self.update(updated_values)
self.obj_reset_changes(updated_values.keys())
class VolumeAttachment(base.CinderPersistentObject, base.CinderObject,
base.CinderObjectDictCompat,
base.CinderComparableObject):
# Version 1.0: Initial version
# Version 1.1: Added volume relationship
# Version 1.2: Added connection_info attribute
VERSION = '1.2'
OPTIONAL_FIELDS = ['volume']
obj_extra_fields = ['project_id', 'volume_host']
fields = {
'id': fields.UUIDField(),
'volume_id': fields.UUIDField(),
'instance_uuid': fields.UUIDField(nullable=True),
'attached_host': fields.StringField(nullable=True),
'mountpoint': fields.StringField(nullable=True),
'attach_time': fields.DateTimeField(nullable=True),
'detach_time': fields.DateTimeField(nullable=True),
'attach_status': c_fields.VolumeAttachStatusField(nullable=True),
'attach_mode': fields.StringField(nullable=True),
'volume': fields.ObjectField('Volume', nullable=False),
'connection_info': c_fields.DictOfNullableField(nullable=True)
}
@property
def project_id(self):
return self.volume.project_id
@property
def volume_host(self):
return self.volume.host
@classmethod
def _get_expected_attrs(cls, context, *args, **kwargs):
return ['volume']
def obj_make_compatible(self, primitive, target_version):
"""Make an object representation compatible with target version."""
super(VolumeAttachment,
self).obj_make_compatible(primitive, target_version)
target_version = versionutils.convert_version_to_tuple(target_version)
if target_version < (1, 2):
primitive.pop('connection_info', None)
@classmethod
def _from_db_object(cls,
context,
attachment,
db_attachment,
expected_attrs=None):
if expected_attrs is None:
expected_attrs = cls._get_expected_attrs(context)
for name, field in attachment.fields.items():
if name in cls.OPTIONAL_FIELDS:
continue
value = db_attachment.get(name)
if isinstance(field, fields.IntegerField):
value = value or 0
if name == 'connection_info':
attachment.connection_info = jsonutils.loads(
value) if value else None
else:
attachment[name] = value
if 'volume' in expected_attrs:
db_volume = db_attachment.get('volume')
if db_volume:
attachment.volume = objects.Volume._from_db_object(
context, objects.Volume(), db_volume)
attachment._context = context
attachment.obj_reset_changes()
return attachment
def obj_load_attr(self, attrname):
if attrname not in self.OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
if attrname == 'volume':
volume = objects.Volume.get_by_id(self._context, self.volume_id)
self.volume = volume
self.obj_reset_changes(fields=[attrname])
@staticmethod
def _convert_connection_info_to_db_format(updates):
properties = updates.pop('connection_info', None)
if properties is not None:
updates['connection_info'] = jsonutils.dumps(properties)
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
if 'connection_info' in updates:
self._convert_connection_info_to_db_format(updates)
if 'volume' in updates:
raise exception.ObjectActionError(action='save',
reason=_('volume changed'))
db.volume_attachment_update(self._context, self.id, updates)
self.obj_reset_changes()
def finish_attach(self,
instance_uuid,
host_name,
mount_point,
attach_mode='rw'):
with self.obj_as_admin():
db_volume, updated_values = db.volume_attached(
self._context, self.id, instance_uuid, host_name, mount_point,
attach_mode)
self.update(updated_values)
self.obj_reset_changes(updated_values.keys())
return objects.Volume._from_db_object(self._context, objects.Volume(),
db_volume)
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already created'))
updates = self.cinder_obj_get_changes()
with self.obj_as_admin():
db_attachment = db.volume_attach(self._context, updates)
self._from_db_object(self._context, self, db_attachment)
def destroy(self):
updated_values = db.attachment_destroy(self._context, self.id)
self.update(updated_values)
self.obj_reset_changes(updated_values.keys())
class VolumeAttachment(base.CinderPersistentObject, base.CinderObject,
base.CinderObjectDictCompat,
base.CinderComparableObject):
# Version 1.0: Initial version
# Version 1.1: Added volume relationship
VERSION = '1.1'
OPTIONAL_FIELDS = ['volume']
obj_extra_fields = ['project_id', 'volume_host']
fields = {
'id': fields.UUIDField(),
'volume_id': fields.UUIDField(),
'instance_uuid': fields.UUIDField(nullable=True),
'attached_host': fields.StringField(nullable=True),
'mountpoint': fields.StringField(nullable=True),
'attach_time': fields.DateTimeField(nullable=True),
'detach_time': fields.DateTimeField(nullable=True),
'attach_status': c_fields.VolumeAttachStatusField(nullable=True),
'attach_mode': fields.StringField(nullable=True),
'volume': fields.ObjectField('Volume', nullable=False),
}
@property
def project_id(self):
return self.volume.project_id
@property
def volume_host(self):
return self.volume.host
@classmethod
def _get_expected_attrs(cls, context, *args, **kwargs):
return ['volume']
@classmethod
def _from_db_object(cls,
context,
attachment,
db_attachment,
expected_attrs=None):
if expected_attrs is None:
expected_attrs = cls._get_expected_attrs(context)
for name, field in attachment.fields.items():
if name in cls.OPTIONAL_FIELDS:
continue
value = db_attachment.get(name)
if isinstance(field, fields.IntegerField):
value = value or 0
attachment[name] = value
if 'volume' in expected_attrs:
db_volume = db_attachment.get('volume')
if db_volume:
attachment.volume = objects.Volume._from_db_object(
context, objects.Volume(), db_volume)
attachment._context = context
attachment.obj_reset_changes()
return attachment
def obj_load_attr(self, attrname):
if attrname not in self.OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
if attrname == 'volume':
volume = objects.Volume.get_by_id(self._context, self.id)
self.volume = volume
self.obj_reset_changes(fields=[attrname])
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
if 'volume' in updates:
raise exception.ObjectActionError(action='save',
reason=_('volume changed'))
db.volume_attachment_update(self._context, self.id, updates)
self.obj_reset_changes()
def finish_attach(self,
instance_uuid,
host_name,
mount_point,
attach_mode='rw'):
with self.obj_as_admin():
db_volume, updated_values = db.volume_attached(
self._context, self.id, instance_uuid, host_name, mount_point,
attach_mode)
self.update(updated_values)
self.obj_reset_changes(updated_values.keys())
return objects.Volume._from_db_object(self._context, objects.Volume(),
db_volume)
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already created'))
updates = self.cinder_obj_get_changes()
with self.obj_as_admin():
db_attachment = db.volume_attach(self._context, updates)
self._from_db_object(self._context, self, db_attachment)
