130 lines
5.0 KiB
Python
130 lines
5.0 KiB
Python
# Copyright 2018 OpenStack Foundation
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# Copyright 2017 Letv Cloud Computing
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# All Rights Reserved.
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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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#
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from neutron_lib.api.definitions import l3 as l3_apidef
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from neutron_lib.api.definitions import qos_gateway_ip
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from neutron_lib.api import extensions
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from neutron_lib.services.qos import constants as qos_consts
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from oslo_log import log as logging
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from neutron.db import _resource_extend as resource_extend
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from neutron.db import l3_db
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from neutron.db import l3_gwmode_db
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from neutron.objects.qos import policy as policy_object
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LOG = logging.getLogger(__name__)
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@resource_extend.has_resource_extenders
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class L3_gw_ip_qos_dbonly_mixin(l3_gwmode_db.L3_NAT_dbonly_mixin):
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"""Mixin class to add router gateway IP's QoS extra attributes."""
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_gw_ip_qos = None
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@staticmethod
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@resource_extend.extends([l3_apidef.ROUTERS])
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def _extend_router_dict_gw_qos(router_res, router_db):
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if router_db.gw_port_id and router_db.get('qos_policy_binding'):
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policy_id = router_db.qos_policy_binding.policy_id
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router_res[l3_apidef.EXTERNAL_GW_INFO].update(
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{qos_consts.QOS_POLICY_ID: policy_id})
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@property
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def _is_gw_ip_qos_supported(self):
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if self._gw_ip_qos is None:
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# Check L3 service plugin
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self._gw_ip_qos = extensions.is_extension_supported(
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self, qos_gateway_ip.ALIAS)
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return self._gw_ip_qos
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def _create_gw_ip_qos_db(self, context, router_id, policy_id):
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policy = policy_object.QosPolicy.get_policy_obj(context, policy_id)
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policy.attach_router(router_id)
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def _delete_gw_ip_qos_db(self, context, router_id, policy_id):
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policy = policy_object.QosPolicy.get_policy_obj(context, policy_id)
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policy.detach_router(router_id)
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def _update_router_gw_info(self, context, router_id, info, router=None):
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# Calls superclass, pass router db object for avoiding re-loading
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router = super(L3_gw_ip_qos_dbonly_mixin,
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self)._update_router_gw_info(
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context, router_id, info, router)
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if self._is_gw_ip_qos_supported and router.gw_port:
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self._update_router_gw_qos_policy(context, router_id,
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info, router)
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return router
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def _get_router_gateway_policy_binding(self, context, router_id):
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router = self._get_router(context, router_id)
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return router.qos_policy_binding
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def _update_router_gw_qos_policy(self, context, router_id, info, router):
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if not info or qos_consts.QOS_POLICY_ID not in info:
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# An explicit 'None' for `qos_polcy_id` indicates to clear
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# the router gateway IP policy. So if info does not have
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# the key `qos_polcy_id`, we can not decide what behavior
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# to be done, then directly return here.
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return
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new_qos_policy_id = info[qos_consts.QOS_POLICY_ID]
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if router.qos_policy_binding:
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old_qos_policy_id = router.qos_policy_binding.policy_id
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if old_qos_policy_id == new_qos_policy_id:
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return
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if old_qos_policy_id:
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self._delete_gw_ip_qos_db(context,
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router_id,
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old_qos_policy_id)
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with context.session.begin(subtransactions=True):
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context.session.refresh(router)
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if new_qos_policy_id:
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self._create_gw_ip_qos_db(
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context, router_id, new_qos_policy_id)
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def _build_routers_list(self, context, routers, gw_ports):
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routers = super(L3_gw_ip_qos_dbonly_mixin,
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self)._build_routers_list(
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context, routers, gw_ports)
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if not self._is_gw_ip_qos_supported:
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return routers
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for rtr in routers:
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gw_port_id = rtr['gw_port_id']
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# Collect gw ports only if available
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if gw_port_id and gw_ports.get(gw_port_id):
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rtr['gw_port'] = gw_ports[gw_port_id]
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router_gateway_policy_binding = (
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self._get_router_gateway_policy_binding(
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context, rtr['id']))
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qos_policy_id = None
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if router_gateway_policy_binding:
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qos_policy_id = router_gateway_policy_binding.policy_id
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rtr['gw_port'][qos_consts.QOS_POLICY_ID] = qos_policy_id
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return routers
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class L3_gw_ip_qos_db_mixin(L3_gw_ip_qos_dbonly_mixin,
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l3_db.L3_NAT_db_mixin):
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pass
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