142 lines
4.6 KiB
Python
142 lines
4.6 KiB
Python
# Copyright (c) 2013 OpenStack Foundation.
|
|
# All rights reserved.
|
|
#
|
|
# 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.
|
|
|
|
import abc
|
|
|
|
from neutron.api import extensions
|
|
from neutron.api.v2 import base
|
|
from neutron.api.v2 import resource
|
|
from neutron.extensions import agent
|
|
from neutron import manager
|
|
from neutron.plugins.common import constants as plugin_const
|
|
from neutron import policy
|
|
from neutron import wsgi
|
|
|
|
from neutron_lbaas._i18n import _
|
|
from neutron_lbaas.extensions import loadbalancer
|
|
from neutron_lbaas.extensions import loadbalancerv2
|
|
from neutron_lbaas.services.loadbalancer import constants as lb_const
|
|
|
|
LOADBALANCER = 'agent-loadbalancer'
|
|
LOADBALANCERS = LOADBALANCER + 's'
|
|
LOADBALANCER_AGENT = 'loadbalancer-hosting-agent'
|
|
|
|
|
|
class LoadBalancerSchedulerController(wsgi.Controller):
|
|
def index(self, request, **kwargs):
|
|
lbaas_plugin = manager.NeutronManager.get_service_plugins().get(
|
|
plugin_const.LOADBALANCERV2)
|
|
if not lbaas_plugin:
|
|
return {'load_balancers': []}
|
|
|
|
policy.enforce(request.context,
|
|
"get_%s" % LOADBALANCERS,
|
|
{},
|
|
plugin=lbaas_plugin)
|
|
lbs = lbaas_plugin.db.list_loadbalancers_on_lbaas_agent(
|
|
request.context, kwargs['agent_id'])
|
|
return {'loadbalancers': [lb.to_api_dict() for lb in lbs]}
|
|
|
|
|
|
class LbaasAgentHostingLoadBalancerController(wsgi.Controller):
|
|
def index(self, request, **kwargs):
|
|
lbaas_plugin = manager.NeutronManager.get_service_plugins().get(
|
|
plugin_const.LOADBALANCERV2)
|
|
if not lbaas_plugin:
|
|
return
|
|
|
|
policy.enforce(request.context,
|
|
"get_%s" % LOADBALANCER_AGENT,
|
|
{},
|
|
plugin=lbaas_plugin)
|
|
return lbaas_plugin.db.get_agent_hosting_loadbalancer(
|
|
request.context, kwargs['loadbalancer_id'])
|
|
|
|
|
|
class Lbaas_agentschedulerv2(extensions.ExtensionDescriptor):
|
|
"""Extension class supporting LBaaS agent scheduler.
|
|
"""
|
|
|
|
@classmethod
|
|
def get_name(cls):
|
|
return "Loadbalancer Agent Scheduler V2"
|
|
|
|
@classmethod
|
|
def get_alias(cls):
|
|
return lb_const.LBAAS_AGENT_SCHEDULER_V2_EXT_ALIAS
|
|
|
|
@classmethod
|
|
def get_description(cls):
|
|
return "Schedule load balancers among lbaas agents"
|
|
|
|
@classmethod
|
|
def get_namespace(cls):
|
|
return "http://docs.openstack.org/ext/lbaas_agent_scheduler/api/v1.0"
|
|
|
|
@classmethod
|
|
def get_updated(cls):
|
|
return "2013-02-07T10:00:00-00:00"
|
|
|
|
@classmethod
|
|
def get_resources(cls):
|
|
"""Returns Ext Resources."""
|
|
exts = []
|
|
parent = dict(member_name="agent",
|
|
collection_name="agents")
|
|
|
|
controller = resource.Resource(LoadBalancerSchedulerController(),
|
|
base.FAULT_MAP)
|
|
exts.append(extensions.ResourceExtension(
|
|
LOADBALANCERS, controller, parent))
|
|
|
|
parent = dict(member_name="loadbalancer",
|
|
collection_name="loadbalancers")
|
|
|
|
controller = resource.Resource(
|
|
LbaasAgentHostingLoadBalancerController(), base.FAULT_MAP)
|
|
exts.append(extensions.ResourceExtension(
|
|
LOADBALANCER_AGENT, controller, parent,
|
|
path_prefix=loadbalancerv2.LOADBALANCERV2_PREFIX))
|
|
return exts
|
|
|
|
def get_extended_resources(self, version):
|
|
return {}
|
|
|
|
|
|
class NoEligibleLbaasAgent(loadbalancer.NoEligibleBackend):
|
|
message = _("No eligible agent found "
|
|
"for loadbalancer %(loadbalancer_id)s.")
|
|
|
|
|
|
class NoActiveLbaasAgent(agent.AgentNotFound):
|
|
message = _("No active agent found "
|
|
"for loadbalancer %(loadbalancer_id)s.")
|
|
|
|
|
|
class LbaasAgentSchedulerPluginBase(object):
|
|
"""REST API to operate the lbaas agent scheduler.
|
|
|
|
All of method must be in an admin context.
|
|
"""
|
|
|
|
@abc.abstractmethod
|
|
def list_loadbalancers_on_lbaas_agent(self, context, id):
|
|
pass
|
|
|
|
@abc.abstractmethod
|
|
def get_agent_hosting_loadbalancer(self, context, loadbalancer_id,
|
|
active=None):
|
|
pass
|