4c0ee4dc06
Modify the persistence logic for VPNaaS to separate out the validation for the reference implmentation. This allows providers to override/extend the validation, as needed. Additional commits will address the separation for other providers and for other L3 services. In addition, the logic that sets default values for optional attributes is also moved into separate methods to allow providers to override the defaults used. Only attributes that have multiple validations are considered at this time, but this can be extended, as needed. Currently, one UT fails due to an oslo.messaging bug that has been fixed, but not yet released for Neutron use. As a workaround, the affected test case has been commented out. This test verifies that the right (only, in this case) device driver is used for validation. Once the issue with releasing oslo.messaging 1.4.0.0a2 or newer is resolved, this can be uncommented. In the future, TaskFlow may be used for the L3 services workflow, and these changes will provide validation modularization for that effort. Change-Id: Id420983ccbceece5f4a00546941618318b9562c7 Partially-implements: blueprint l3-svcs-vendor-validation
95 lines
3.2 KiB
Python
95 lines
3.2 KiB
Python
# Copyright 2013, Nachi Ueno, NTT I3, Inc.
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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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import abc
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import six
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from neutron.common import rpc as n_rpc
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from neutron.db.vpn import vpn_validator
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from neutron import manager
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from neutron.openstack.common import log as logging
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from neutron.plugins.common import constants
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LOG = logging.getLogger(__name__)
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@six.add_metaclass(abc.ABCMeta)
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class VpnDriver(object):
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def __init__(self, service_plugin, validator=None):
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self.service_plugin = service_plugin
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if validator is None:
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validator = vpn_validator.VpnReferenceValidator()
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self.validator = validator
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@property
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def service_type(self):
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pass
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@abc.abstractmethod
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def create_vpnservice(self, context, vpnservice):
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pass
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@abc.abstractmethod
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def update_vpnservice(
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self, context, old_vpnservice, vpnservice):
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pass
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@abc.abstractmethod
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def delete_vpnservice(self, context, vpnservice):
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pass
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class BaseIPsecVpnAgentApi(n_rpc.RpcProxy):
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"""Base class for IPSec API to agent."""
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def __init__(self, to_agent_topic, topic, default_version):
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self.to_agent_topic = to_agent_topic
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super(BaseIPsecVpnAgentApi, self).__init__(topic, default_version)
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def _agent_notification(self, context, method, router_id,
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version=None, **kwargs):
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"""Notify update for the agent.
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This method will find where is the router, and
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dispatch notification for the agent.
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"""
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admin_context = context.is_admin and context or context.elevated()
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plugin = manager.NeutronManager.get_service_plugins().get(
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constants.L3_ROUTER_NAT)
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if not version:
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version = self.RPC_API_VERSION
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l3_agents = plugin.get_l3_agents_hosting_routers(
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admin_context, [router_id],
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admin_state_up=True,
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active=True)
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for l3_agent in l3_agents:
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LOG.debug(_('Notify agent at %(topic)s.%(host)s the message '
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'%(method)s %(args)s'),
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{'topic': self.to_agent_topic,
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'host': l3_agent.host,
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'method': method,
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'args': kwargs})
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self.cast(
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context, self.make_msg(method, **kwargs),
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version=version,
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topic='%s.%s' % (self.to_agent_topic, l3_agent.host))
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def vpnservice_updated(self, context, router_id, **kwargs):
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"""Send update event of vpnservices."""
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self._agent_notification(context, 'vpnservice_updated', router_id,
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**kwargs)
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