00897bd3b7
3rd part of blueprint quantum-scheduler 1. Allow networks to be hosted by certain dhcp agents. Network to dhcp agent is a many to many relationship. Provide a simple scheduler to schedule a network randomly to an active dhcp agent when a network or port is created. 2. Allow admin user to (de)schedule network to a certain dhcp agent manually. 3. Allow routers to be hosted by a certain l3 agent. Router to l3 agent is a many to one relationship. Provide a simple scheduler to schedule a router to l3 agent if the router is not scheduled when the router is updated. 4. Auto schedule networks and routers to agents when agents start. 5. Only support ovs plugin at this point Change-Id: Iddec3ea9d4c0fe2d51a59f7db47145722fc5a1cd
68 lines
2.5 KiB
Python
68 lines
2.5 KiB
Python
# Copyright (c) 2012 OpenStack, LLC.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo.config import cfg
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from quantum.common import constants
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from quantum.common import utils
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from quantum import context as quantum_context
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from quantum import manager
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from quantum.openstack.common import jsonutils
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from quantum.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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class L3RpcCallbackMixin(object):
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"""A mix-in that enable L3 agent rpc support in plugin implementations."""
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def sync_routers(self, context, **kwargs):
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"""Sync routers according to filters to a specific agent.
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@param context: contain user information
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@param kwargs: host, or router_id
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@return: a list of routers
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with their interfaces and floating_ips
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"""
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router_id = kwargs.get('router_id')
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host = kwargs.get('host')
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context = quantum_context.get_admin_context()
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plugin = manager.QuantumManager.get_plugin()
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if utils.is_extension_supported(
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plugin, constants.AGENT_SCHEDULER_EXT_ALIAS):
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if cfg.CONF.router_auto_schedule:
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plugin.auto_schedule_routers(context, host, router_id)
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routers = plugin.list_active_sync_routers_on_active_l3_agent(
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context, host, router_id)
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else:
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routers = plugin.get_sync_data(context, router_id)
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LOG.debug(_("Routers returned to l3 agent:\n %s"),
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jsonutils.dumps(routers, indent=5))
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return routers
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def get_external_network_id(self, context, **kwargs):
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"""Get one external network id for l3 agent.
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l3 agent expects only on external network when it performs
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this query.
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"""
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context = quantum_context.get_admin_context()
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plugin = manager.QuantumManager.get_plugin()
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net_id = plugin.get_external_network_id(context)
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LOG.debug(_("External network ID returned to l3 agent: %s"),
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net_id)
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return net_id
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