107 lines
3.7 KiB
Python
107 lines
3.7 KiB
Python
# Copyright 2013, Nachi Ueno, NTT I3, Inc.
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# Copyright 2017, Fujitsu Limited
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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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from neutron_lib.agent import l3_extension
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from oslo_config import cfg
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from oslo_log import log as logging
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from neutron_vpnaas._i18n import _
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from neutron_vpnaas.services.vpn import vpn_service
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LOG = logging.getLogger(__name__)
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vpn_agent_opts = [
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cfg.MultiStrOpt(
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'vpn_device_driver',
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default=['neutron_vpnaas.services.vpn.device_drivers.'
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'ipsec.OpenSwanDriver'],
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sample_default=['neutron_vpnaas.services.vpn.device_drivers.ipsec.'
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'OpenSwanDriver, '
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'neutron_vpnaas.services.vpn.device_drivers.'
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'strongswan_ipsec.StrongSwanDriver, '
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'neutron_vpnaas.services.vpn.device_drivers.'
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'libreswan_ipsec.LibreSwanDriver'],
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help=_("The vpn device drivers Neutron will use")),
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]
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cfg.CONF.register_opts(vpn_agent_opts, 'vpnagent')
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class VPNAgent(l3_extension.L3AgentExtension):
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"""VPNaaS Agent support to be used by Neutron L3 agent."""
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def initialize(self, connection, driver_type):
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LOG.debug("Loading VPNaaS")
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def consume_api(self, agent_api):
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LOG.debug("Loading consume_api for VPNaaS")
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self.agent_api = agent_api
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def __init__(self, host, conf):
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LOG.debug("Initializing VPNaaS agent")
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self.agent_api = None
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self.conf = conf
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self.host = host
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self.service = vpn_service.VPNService(self)
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self.device_drivers = self.service.load_device_drivers(self.host)
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def add_router(self, context, data):
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"""Handles router add event"""
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ri = self.agent_api.get_router_info(data['id'])
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if ri is not None:
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for device_driver in self.device_drivers:
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device_driver.create_router(ri)
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device_driver.sync(context, [ri.router])
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else:
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LOG.debug("Router %s was concurrently deleted while "
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"creating VPN for it", data['id'])
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def update_router(self, context, data):
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"""Handles router update event"""
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for device_driver in self.device_drivers:
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device_driver.sync(context, [data])
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def delete_router(self, context, data):
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"""Handles router delete event"""
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for device_driver in self.device_drivers:
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device_driver.destroy_router(data['id'])
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def ha_state_change(self, context, data):
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"""Enable the vpn process when router transitioned to master.
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And disable vpn process for backup router.
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"""
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router_id = data['router_id']
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state = data['state']
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for device_driver in self.device_drivers:
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if router_id in device_driver.processes:
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process = device_driver.processes[router_id]
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if state == 'master':
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process.enable()
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else:
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process.disable()
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class L3WithVPNaaS(VPNAgent):
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def __init__(self, conf=None):
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if conf:
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self.conf = conf
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else:
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self.conf = cfg.CONF
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super(L3WithVPNaaS, self).__init__(
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host=self.conf.host, conf=self.conf)
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