nova/nova/objects/fixed_ip.py

240 lines
10 KiB
Python

# Copyright 2014 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from nova import db
from nova import exception
from nova.objects import base as obj_base
from nova.objects import fields
from nova.objects import instance as instance_obj
from nova.objects import network as network_obj
from nova.objects import virtual_interface as vif_obj
from nova.openstack.common import timeutils
FIXED_IP_OPTIONAL_ATTRS = ['instance', 'network']
class FixedIP(obj_base.NovaPersistentObject, obj_base.NovaObject):
# Version 1.0: Initial version
# Version 1.1: Added virtual_interface field
VERSION = '1.1'
fields = {
'id': fields.IntegerField(),
'address': fields.IPV4AndV6Address(),
'network_id': fields.IntegerField(nullable=True),
'virtual_interface_id': fields.IntegerField(nullable=True),
'instance_uuid': fields.UUIDField(nullable=True),
'allocated': fields.BooleanField(),
'leased': fields.BooleanField(),
'reserved': fields.BooleanField(),
'host': fields.StringField(nullable=True),
'instance': fields.ObjectField('Instance', nullable=True),
'network': fields.ObjectField('Network', nullable=True),
'virtual_interface': fields.ObjectField('VirtualInterface',
nullable=True),
}
@property
def floating_ips(self):
# NOTE(danms): avoid circular import
from nova.objects import floating_ip
return floating_ip.FloatingIPList.get_by_fixed_ip_id(self._context,
self.id)
@staticmethod
def _from_db_object(context, fixedip, db_fixedip, expected_attrs=None):
if expected_attrs is None:
expected_attrs = []
for field in fixedip.fields:
if field == 'virtual_interface':
# NOTE(danms): This field is only set when doing a
# FixedIPList.get_by_network() because it's a relatively
# special-case thing, so skip it here
continue
if field not in FIXED_IP_OPTIONAL_ATTRS:
fixedip[field] = db_fixedip[field]
# NOTE(danms): Instance could be deleted, and thus None
if 'instance' in expected_attrs:
fixedip.instance = instance_obj.Instance._from_db_object(
context,
instance_obj.Instance(),
db_fixedip['instance']) if db_fixedip['instance'] else None
if 'network' in expected_attrs:
fixedip.network = network_obj.Network._from_db_object(
context, network_obj.Network(), db_fixedip['network'])
fixedip._context = context
fixedip.obj_reset_changes()
return fixedip
@obj_base.remotable_classmethod
def get_by_id(cls, context, id, expected_attrs=None):
if expected_attrs is None:
expected_attrs = []
get_network = 'network' in expected_attrs
db_fixedip = db.fixed_ip_get(context, id, get_network=get_network)
return cls._from_db_object(context, cls(), db_fixedip, expected_attrs)
@obj_base.remotable_classmethod
def get_by_address(cls, context, address, expected_attrs=None):
if expected_attrs is None:
expected_attrs = []
db_fixedip = db.fixed_ip_get_by_address(context, str(address),
columns_to_join=expected_attrs)
return cls._from_db_object(context, cls(), db_fixedip, expected_attrs)
@obj_base.remotable_classmethod
def get_by_floating_address(cls, context, address):
db_fixedip = db.fixed_ip_get_by_floating_address(context, address)
return cls._from_db_object(context, cls(), db_fixedip)
@obj_base.remotable_classmethod
def get_by_network_and_host(cls, context, network_id, host):
db_fixedip = db.fixed_ip_get_by_network_host(context, network_id, host)
return cls._from_db_object(context, cls(), db_fixedip)
@obj_base.remotable_classmethod
def associate(cls, context, address, instance_uuid, network_id=None,
reserved=False):
db_fixedip = db.fixed_ip_associate(context, address, instance_uuid,
network_id=network_id,
reserved=reserved)
return cls._from_db_object(context, cls(), db_fixedip)
@obj_base.remotable_classmethod
def associate_pool(cls, context, network_id, instance_uuid=None,
host=None):
db_fixedip = db.fixed_ip_associate_pool(context, network_id,
instance_uuid=instance_uuid,
host=host)
return cls._from_db_object(context, cls(), db_fixedip)
@obj_base.remotable_classmethod
def disassociate_by_address(cls, context, address):
db.fixed_ip_disassociate(context, address)
@obj_base.remotable_classmethod
def _disassociate_all_by_timeout(cls, context, host, time_str):
time = timeutils.parse_isotime(time_str)
return db.fixed_ip_disassociate_all_by_timeout(context, host, time)
@classmethod
def disassociate_all_by_timeout(cls, context, host, time):
return cls._disassociate_all_by_timeout(context, host,
timeutils.isotime(time))
@obj_base.remotable
def create(self, context):
updates = self.obj_get_changes()
if 'id' in updates:
raise exception.ObjectActionError(action='create',
reason='already created')
if 'address' in updates:
updates['address'] = str(updates['address'])
db_fixedip = db.fixed_ip_create(context, updates)
self._from_db_object(context, self, db_fixedip)
@obj_base.remotable
def save(self, context):
updates = self.obj_get_changes()
if 'address' in updates:
raise exception.ObjectActionError(action='save',
reason='address is not mutable')
db.fixed_ip_update(context, str(self.address), updates)
self.obj_reset_changes()
@obj_base.remotable
def disassociate(self, context):
db.fixed_ip_disassociate(context, str(self.address))
self.instance_uuid = None
self.instance = None
self.obj_reset_changes(['instance_uuid', 'instance'])
class FixedIPList(obj_base.ObjectListBase, obj_base.NovaObject):
# Version 1.0: Initial version
# Version 1.1: Added get_by_network()
VERSION = '1.1'
fields = {
'objects': fields.ListOfObjectsField('FixedIP'),
}
child_versions = {
'1.0': '1.0',
'1.1': '1.1',
}
@obj_base.remotable_classmethod
def get_all(cls, context):
db_fixedips = db.fixed_ip_get_all(context)
return obj_base.obj_make_list(context, cls(), FixedIP, db_fixedips)
@obj_base.remotable_classmethod
def get_by_instance_uuid(cls, context, instance_uuid):
db_fixedips = db.fixed_ip_get_by_instance(context, instance_uuid)
return obj_base.obj_make_list(context, cls(), FixedIP, db_fixedips)
@obj_base.remotable_classmethod
def get_by_host(cls, context, host):
db_fixedips = db.fixed_ip_get_by_host(context, host)
return obj_base.obj_make_list(context, cls(), FixedIP, db_fixedips)
@obj_base.remotable_classmethod
def get_by_virtual_interface_id(cls, context, vif_id):
db_fixedips = db.fixed_ips_by_virtual_interface(context, vif_id)
return obj_base.obj_make_list(context, cls(), FixedIP, db_fixedips)
@obj_base.remotable_classmethod
def get_by_network(cls, context, network, host=None):
ipinfo = db.network_get_associated_fixed_ips(context,
network['id'],
host=host)
if not ipinfo:
return []
fips = cls(context=context, objects=[])
for info in ipinfo:
inst = instance_obj.Instance(context=context,
uuid=info['instance_uuid'],
hostname=info['instance_hostname'],
created_at=info['instance_created'],
updated_at=info['instance_updated'])
vif = vif_obj.VirtualInterface(context=context,
id=info['vif_id'],
address=info['vif_address'])
fip = FixedIP(context=context,
address=info['address'],
instance_uuid=info['instance_uuid'],
network_id=info['network_id'],
virtual_interface_id=info['vif_id'],
allocated=info['allocated'],
leased=info['leased'],
instance=inst,
virtual_interface=vif)
fips.objects.append(fip)
fips.obj_reset_changes()
return fips
@obj_base.remotable_classmethod
def bulk_create(self, context, fixed_ips):
ips = []
for fixedip in fixed_ips:
ip = obj_base.obj_to_primitive(fixedip)
if 'id' in ip:
raise exception.ObjectActionError(action='create',
reason='already created')
ips.append(ip)
db.fixed_ip_bulk_create(context, ips)