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# 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 import objects
from nova.objects import base as obj_base
from nova.objects import fields
FLOATING_IP_OPTIONAL_ATTRS = ['fixed_ip']
# TODO(berrange): Remove NovaObjectDictCompat
@obj_base.NovaObjectRegistry.register
class FloatingIP(obj_base.NovaPersistentObject, obj_base.NovaObject,
obj_base.NovaObjectDictCompat):
# Version 1.0: Initial version
# Version 1.1: Added _get_addresses_by_instance_uuid()
# Version 1.2: FixedIP <= version 1.2
# Version 1.3: FixedIP <= version 1.3
# Version 1.4: FixedIP <= version 1.4
# Version 1.5: FixedIP <= version 1.5
# Version 1.6: FixedIP <= version 1.6
VERSION = '1.6'
fields = {
'id': fields.IntegerField(),
'address': fields.IPAddressField(),
'fixed_ip_id': fields.IntegerField(nullable=True),
'project_id': fields.UUIDField(nullable=True),
'host': fields.StringField(nullable=True),
'auto_assigned': fields.BooleanField(),
'pool': fields.StringField(nullable=True),
'interface': fields.StringField(nullable=True),
'fixed_ip': fields.ObjectField('FixedIP', nullable=True),
}
obj_relationships = {
'fixed_ip': [('1.0', '1.1'), ('1.2', '1.2'), ('1.3', '1.3'),
('1.4', '1.4'), ('1.5', '1.5'), ('1.6', '1.6')],
}
@staticmethod
def _from_db_object(context, floatingip, db_floatingip,
expected_attrs=None):
if expected_attrs is None:
expected_attrs = []
for field in floatingip.fields:
if field not in FLOATING_IP_OPTIONAL_ATTRS:
floatingip[field] = db_floatingip[field]
if ('fixed_ip' in expected_attrs and
db_floatingip['fixed_ip'] is not None):
floatingip.fixed_ip = objects.FixedIP._from_db_object(
context, objects.FixedIP(context), db_floatingip['fixed_ip'])
floatingip._context = context
floatingip.obj_reset_changes()
return floatingip
def obj_load_attr(self, attrname):
if attrname not in FLOATING_IP_OPTIONAL_ATTRS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason='attribute %s is not lazy-loadable' % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
if self.fixed_ip_id is not None:
self.fixed_ip = objects.FixedIP.get_by_id(
self._context, self.fixed_ip_id, expected_attrs=['network'])
else:
self.fixed_ip = None
@obj_base.remotable_classmethod
def get_by_id(cls, context, id):
db_floatingip = db.floating_ip_get(context, id)
# XXX joins fixed.instance
return cls._from_db_object(context, cls(context), db_floatingip,
expected_attrs=['fixed_ip'])
@obj_base.remotable_classmethod
def get_by_address(cls, context, address):
db_floatingip = db.floating_ip_get_by_address(context, str(address))
return cls._from_db_object(context, cls(context), db_floatingip)
@obj_base.remotable_classmethod
def get_pool_names(cls, context):
return [x['name'] for x in db.floating_ip_get_pools(context)]
@obj_base.remotable_classmethod
def allocate_address(cls, context, project_id, pool, auto_assigned=False):
return db.floating_ip_allocate_address(context, project_id, pool,
auto_assigned=auto_assigned)
@obj_base.remotable_classmethod
def associate(cls, context, floating_address, fixed_address, host):
db_fixed = db.floating_ip_fixed_ip_associate(context,
str(floating_address),
str(fixed_address),
host)
if db_fixed is None:
return None
floating = FloatingIP(
context=context, address=floating_address, host=host,
fixed_ip_id=db_fixed['id'],
fixed_ip=objects.FixedIP._from_db_object(
context, objects.FixedIP(context), db_fixed,
expected_attrs=['network']))
return floating
@obj_base.remotable_classmethod
def deallocate(cls, context, address):
return db.floating_ip_deallocate(context, str(address))
@obj_base.remotable_classmethod
def destroy(cls, context, address):
db.floating_ip_destroy(context, str(address))
@obj_base.remotable_classmethod
def disassociate(cls, context, address):
db_fixed = db.floating_ip_disassociate(context, str(address))
return cls(context=context, address=address,
fixed_ip_id=db_fixed['id'],
fixed_ip=objects.FixedIP._from_db_object(
context, objects.FixedIP(context), db_fixed,
expected_attrs=['network']))
@obj_base.remotable_classmethod
def _get_addresses_by_instance_uuid(cls, context, instance_uuid):
return db.instance_floating_address_get_all(context, instance_uuid)
@classmethod
def get_addresses_by_instance(cls, context, instance):
return cls._get_addresses_by_instance_uuid(context, instance['uuid'])
@obj_base.remotable
def save(self):
updates = self.obj_get_changes()
if 'address' in updates:
raise exception.ObjectActionError(action='save',
reason='address is not mutable')
if 'fixed_ip_id' in updates:
reason = 'fixed_ip_id is not mutable'
raise exception.ObjectActionError(action='save', reason=reason)
# NOTE(danms): Make sure we don't pass the calculated fixed_ip
# relationship to the DB update method
updates.pop('fixed_ip', None)
db_floatingip = db.floating_ip_update(self._context, str(self.address),
updates)
self._from_db_object(self._context, self, db_floatingip)
@obj_base.NovaObjectRegistry.register
class FloatingIPList(obj_base.ObjectListBase, obj_base.NovaObject):
# Version 1.3: FloatingIP 1.2
# Version 1.4: FloatingIP 1.3
# Version 1.5: FloatingIP 1.4
# Version 1.6: FloatingIP 1.5
# Version 1.7: FloatingIP 1.6
fields = {
'objects': fields.ListOfObjectsField('FloatingIP'),
}
child_versions = {
'1.0': '1.0',
'1.1': '1.1',
'1.2': '1.1',
'1.3': '1.2',
'1.4': '1.3',
'1.5': '1.4',
'1.6': '1.5',
'1.7': '1.6',
}
VERSION = '1.7'
@obj_base.remotable_classmethod
def get_all(cls, context):
db_floatingips = db.floating_ip_get_all(context)
return obj_base.obj_make_list(context, cls(context),
objects.FloatingIP, db_floatingips)
@obj_base.remotable_classmethod
def get_by_host(cls, context, host):
db_floatingips = db.floating_ip_get_all_by_host(context, host)
return obj_base.obj_make_list(context, cls(context),
objects.FloatingIP, db_floatingips)
@obj_base.remotable_classmethod
def get_by_project(cls, context, project_id):
db_floatingips = db.floating_ip_get_all_by_project(context, project_id)
return obj_base.obj_make_list(context, cls(context),
objects.FloatingIP, db_floatingips)
@obj_base.remotable_classmethod
def get_by_fixed_address(cls, context, fixed_address):
db_floatingips = db.floating_ip_get_by_fixed_address(
context, str(fixed_address))
return obj_base.obj_make_list(context, cls(context),
objects.FloatingIP, db_floatingips)
@obj_base.remotable_classmethod
def get_by_fixed_ip_id(cls, context, fixed_ip_id):
db_floatingips = db.floating_ip_get_by_fixed_ip_id(context,
fixed_ip_id)
return obj_base.obj_make_list(context, cls(), FloatingIP,
db_floatingips)
@staticmethod
def make_ip_info(address, pool, interface):
return {'address': str(address),
'pool': pool,
'interface': interface}
@obj_base.remotable_classmethod
def create(cls, context, ip_info, want_result=False):
db_floatingips = db.floating_ip_bulk_create(context, ip_info,
want_result=want_result)
if want_result:
return obj_base.obj_make_list(context, cls(), FloatingIP,
db_floatingips)
@obj_base.remotable_classmethod
def destroy(cls, context, ips):
db.floating_ip_bulk_destroy(context, ips)
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