316 lines
14 KiB
Python
316 lines
14 KiB
Python
# Copyright 2014 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_utils import timeutils
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from oslo_utils import versionutils
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from nova.db import api as db
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from nova.db.sqlalchemy import api as db_api
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from nova.db.sqlalchemy import models
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from nova import exception
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from nova import objects
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from nova.objects import base as obj_base
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from nova.objects import fields
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from nova import utils
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FIXED_IP_OPTIONAL_ATTRS = ['instance', 'network', 'virtual_interface',
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'floating_ips']
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# TODO(berrange): Remove NovaObjectDictCompat
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@obj_base.NovaObjectRegistry.register
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class FixedIP(obj_base.NovaPersistentObject, obj_base.NovaObject,
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obj_base.NovaObjectDictCompat):
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# Version 1.0: Initial version
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# Version 1.1: Added virtual_interface field
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# Version 1.2: Instance version 1.14
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# Version 1.3: Instance 1.15
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# Version 1.4: Added default_route field
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# Version 1.5: Added floating_ips field
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# Version 1.6: Instance 1.16
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# Version 1.7: Instance 1.17
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# Version 1.8: Instance 1.18
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# Version 1.9: Instance 1.19
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# Version 1.10: Instance 1.20
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# Version 1.11: Instance 1.21
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# Version 1.12: Instance 1.22, FloatingIPList 1.9
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# Version 1.13: Instance 1.23, FloatingIPList 1.10
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# Version 1.14: Added vif_id kwarg to associate(_pool), FloatingIPList 1.11
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VERSION = '1.14'
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fields = {
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'id': fields.IntegerField(),
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'address': fields.IPV4AndV6AddressField(),
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'network_id': fields.IntegerField(nullable=True),
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'virtual_interface_id': fields.IntegerField(nullable=True),
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'instance_uuid': fields.UUIDField(nullable=True),
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'allocated': fields.BooleanField(),
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'leased': fields.BooleanField(),
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'reserved': fields.BooleanField(),
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'host': fields.StringField(nullable=True),
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'default_route': fields.BooleanField(),
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'instance': fields.ObjectField('Instance', nullable=True),
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'network': fields.ObjectField('Network', nullable=True),
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'virtual_interface': fields.ObjectField('VirtualInterface',
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nullable=True),
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# NOTE(danms): This should not ever be made lazy-loadable
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# because it would create a bit of a loop between FixedIP
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# and FloatingIP
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'floating_ips': fields.ObjectField('FloatingIPList'),
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}
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def obj_make_compatible(self, primitive, target_version):
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super(FixedIP, self).obj_make_compatible(primitive, target_version)
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target_version = versionutils.convert_version_to_tuple(target_version)
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if target_version < (1, 4) and 'default_route' in primitive:
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del primitive['default_route']
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@staticmethod
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def _from_db_object(context, fixedip, db_fixedip, expected_attrs=None):
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if expected_attrs is None:
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expected_attrs = []
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for field in fixedip.fields:
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if field == 'default_route':
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# NOTE(danms): This field is only set when doing a
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# FixedIPList.get_by_network() because it's a relatively
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# special-case thing, so skip it here
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continue
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if field not in FIXED_IP_OPTIONAL_ATTRS:
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fixedip[field] = db_fixedip[field]
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# NOTE(danms): Instance could be deleted, and thus None
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if 'instance' in expected_attrs:
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fixedip.instance = objects.Instance._from_db_object(
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context,
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objects.Instance(context),
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db_fixedip['instance']) if db_fixedip['instance'] else None
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if 'network' in expected_attrs:
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fixedip.network = objects.Network._from_db_object(
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context,
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objects.Network(context),
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db_fixedip['network']) if db_fixedip['network'] else None
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if 'virtual_interface' in expected_attrs:
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db_vif = db_fixedip['virtual_interface']
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vif = objects.VirtualInterface._from_db_object(
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context,
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objects.VirtualInterface(context),
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db_fixedip['virtual_interface']) if db_vif else None
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fixedip.virtual_interface = vif
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if 'floating_ips' in expected_attrs:
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fixedip.floating_ips = obj_base.obj_make_list(
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context, objects.FloatingIPList(context),
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objects.FloatingIP, db_fixedip['floating_ips'])
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fixedip._context = context
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fixedip.obj_reset_changes()
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return fixedip
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@obj_base.remotable_classmethod
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def get_by_id(cls, context, id, expected_attrs=None):
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if expected_attrs is None:
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expected_attrs = []
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get_network = 'network' in expected_attrs
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db_fixedip = db.fixed_ip_get(context, id, get_network=get_network)
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return cls._from_db_object(context, cls(context), db_fixedip,
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expected_attrs)
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@obj_base.remotable_classmethod
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def get_by_address(cls, context, address, expected_attrs=None):
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if expected_attrs is None:
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expected_attrs = []
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db_fixedip = db.fixed_ip_get_by_address(context, str(address),
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columns_to_join=expected_attrs)
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return cls._from_db_object(context, cls(context), db_fixedip,
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expected_attrs)
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@obj_base.remotable_classmethod
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def get_by_floating_address(cls, context, address):
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db_fixedip = db.fixed_ip_get_by_floating_address(context, str(address))
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if db_fixedip is not None:
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return cls._from_db_object(context, cls(context), db_fixedip)
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@obj_base.remotable_classmethod
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def get_by_network_and_host(cls, context, network_id, host):
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db_fixedip = db.fixed_ip_get_by_network_host(context, network_id, host)
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return cls._from_db_object(context, cls(context), db_fixedip)
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@obj_base.remotable_classmethod
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def associate(cls, context, address, instance_uuid, network_id=None,
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reserved=False, vif_id=None):
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db_fixedip = db.fixed_ip_associate(context, address, instance_uuid,
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network_id=network_id,
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reserved=reserved,
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virtual_interface_id=vif_id)
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return cls._from_db_object(context, cls(context), db_fixedip)
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@obj_base.remotable_classmethod
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def associate_pool(cls, context, network_id, instance_uuid=None,
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host=None, vif_id=None):
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db_fixedip = db.fixed_ip_associate_pool(context, network_id,
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instance_uuid=instance_uuid,
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host=host,
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virtual_interface_id=vif_id)
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return cls._from_db_object(context, cls(context), db_fixedip)
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@obj_base.remotable_classmethod
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def disassociate_by_address(cls, context, address):
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db.fixed_ip_disassociate(context, address)
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@obj_base.remotable_classmethod
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def _disassociate_all_by_timeout(cls, context, host, time_str):
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time = timeutils.parse_isotime(time_str)
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return db.fixed_ip_disassociate_all_by_timeout(context, host, time)
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@classmethod
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def disassociate_all_by_timeout(cls, context, host, time):
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return cls._disassociate_all_by_timeout(context, host,
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utils.isotime(time))
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@obj_base.remotable
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def create(self):
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updates = self.obj_get_changes()
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if 'id' in updates:
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raise exception.ObjectActionError(action='create',
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reason='already created')
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if 'address' in updates:
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updates['address'] = str(updates['address'])
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db_fixedip = db.fixed_ip_create(self._context, updates)
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self._from_db_object(self._context, self, db_fixedip)
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@obj_base.remotable
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def save(self):
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updates = self.obj_get_changes()
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if 'address' in updates:
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raise exception.ObjectActionError(action='save',
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reason='address is not mutable')
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db.fixed_ip_update(self._context, str(self.address), updates)
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self.obj_reset_changes()
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@obj_base.remotable
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def disassociate(self):
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db.fixed_ip_disassociate(self._context, str(self.address))
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self.instance_uuid = None
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self.instance = None
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self.obj_reset_changes(['instance_uuid', 'instance'])
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@obj_base.NovaObjectRegistry.register
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class FixedIPList(obj_base.ObjectListBase, obj_base.NovaObject):
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# Version 1.0: Initial version
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# Version 1.1: Added get_by_network()
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# Version 1.2: FixedIP <= version 1.2
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# Version 1.3: FixedIP <= version 1.3
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# Version 1.4: FixedIP <= version 1.4
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# Version 1.5: FixedIP <= version 1.5, added expected attrs to gets
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# Version 1.6: FixedIP <= version 1.6
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# Version 1.7: FixedIP <= version 1.7
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# Version 1.8: FixedIP <= version 1.8
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# Version 1.9: FixedIP <= version 1.9
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# Version 1.10: FixedIP <= version 1.10
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# Version 1.11: FixedIP <= version 1.11
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# Version 1.12: FixedIP <= version 1.12
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# Version 1.13: FixedIP <= version 1.13
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# Version 1.14: FixedIP <= version 1.14
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# Version 1.15: Added get_count_by_project() for quotas
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VERSION = '1.15'
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fields = {
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'objects': fields.ListOfObjectsField('FixedIP'),
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}
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@staticmethod
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@db_api.pick_context_manager_reader
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def _get_count_by_project_from_db(context, project_id):
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return context.session.query(models.FixedIp.id).\
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filter_by(deleted=0).\
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join(models.Instance,
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models.Instance.uuid == models.FixedIp.instance_uuid).\
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filter(models.Instance.project_id == project_id).\
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count()
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@obj_base.remotable_classmethod
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def get_all(cls, context):
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db_fixedips = db.fixed_ip_get_all(context)
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return obj_base.obj_make_list(context, cls(context),
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objects.FixedIP, db_fixedips)
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@obj_base.remotable_classmethod
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def get_by_instance_uuid(cls, context, instance_uuid):
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expected_attrs = ['network', 'virtual_interface', 'floating_ips']
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db_fixedips = db.fixed_ip_get_by_instance(context, instance_uuid)
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return obj_base.obj_make_list(context, cls(context),
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objects.FixedIP, db_fixedips,
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expected_attrs=expected_attrs)
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@obj_base.remotable_classmethod
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def get_by_host(cls, context, host):
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db_fixedips = db.fixed_ip_get_by_host(context, host)
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return obj_base.obj_make_list(context, cls(context),
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objects.FixedIP, db_fixedips)
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@obj_base.remotable_classmethod
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def get_by_virtual_interface_id(cls, context, vif_id):
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expected_attrs = ['network', 'floating_ips']
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db_fixedips = db.fixed_ips_by_virtual_interface(context, vif_id)
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return obj_base.obj_make_list(context, cls(context),
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objects.FixedIP, db_fixedips,
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expected_attrs=expected_attrs)
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@obj_base.remotable_classmethod
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def get_by_network(cls, context, network, host=None):
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ipinfo = db.network_get_associated_fixed_ips(context,
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network['id'],
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host=host)
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if not ipinfo:
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return []
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fips = cls(context=context, objects=[])
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for info in ipinfo:
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inst = objects.Instance(context=context,
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uuid=info['instance_uuid'],
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hostname=info['instance_hostname'],
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created_at=info['instance_created'],
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updated_at=info['instance_updated'])
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vif = objects.VirtualInterface(context=context,
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id=info['vif_id'],
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address=info['vif_address'])
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fip = objects.FixedIP(context=context,
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address=info['address'],
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instance_uuid=info['instance_uuid'],
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network_id=info['network_id'],
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virtual_interface_id=info['vif_id'],
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allocated=info['allocated'],
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leased=info['leased'],
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default_route=info['default_route'],
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instance=inst,
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virtual_interface=vif)
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fips.objects.append(fip)
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fips.obj_reset_changes()
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return fips
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@obj_base.remotable_classmethod
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def bulk_create(self, context, fixed_ips):
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ips = []
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for fixedip in fixed_ips:
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ip = obj_base.obj_to_primitive(fixedip)
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if 'id' in ip:
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raise exception.ObjectActionError(action='create',
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reason='already created')
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ips.append(ip)
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db.fixed_ip_bulk_create(context, ips)
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@obj_base.remotable_classmethod
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def get_count_by_project(cls, context, project_id):
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return cls._get_count_by_project_from_db(context, project_id)
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