d1c0e73bc6
H302 violation is reported by flake8 when importing separated objects from
modules instead of importing the whole module.
e.g. from package.module import function
function()
is changed to
from package import module
module.function()
Change-Id: I570eeee2a7633c1590b54ac98b411a71fc9d4f4e
Partial-Bug: #1291032
138 lines
4.3 KiB
Python
138 lines
4.3 KiB
Python
# Copyright (c) 2013 OpenStack Foundation.
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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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from neutron.api import extensions
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from neutron.api.v2 import base
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from neutron.api.v2 import resource
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from neutron.common import constants
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from neutron.extensions import agent
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from neutron.extensions import loadbalancer
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from neutron import manager
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from neutron.plugins.common import constants as plugin_const
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from neutron import policy
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from neutron import wsgi
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LOADBALANCER_POOL = 'loadbalancer-pool'
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LOADBALANCER_POOLS = LOADBALANCER_POOL + 's'
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LOADBALANCER_AGENT = 'loadbalancer-agent'
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class PoolSchedulerController(wsgi.Controller):
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def index(self, request, **kwargs):
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lbaas_plugin = manager.NeutronManager.get_service_plugins().get(
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plugin_const.LOADBALANCER)
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if not lbaas_plugin:
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return {'pools': []}
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policy.enforce(request.context,
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"get_%s" % LOADBALANCER_POOLS,
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{},
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plugin=lbaas_plugin)
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return lbaas_plugin.list_pools_on_lbaas_agent(
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request.context, kwargs['agent_id'])
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class LbaasAgentHostingPoolController(wsgi.Controller):
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def index(self, request, **kwargs):
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lbaas_plugin = manager.NeutronManager.get_service_plugins().get(
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plugin_const.LOADBALANCER)
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if not lbaas_plugin:
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return
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policy.enforce(request.context,
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"get_%s" % LOADBALANCER_AGENT,
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{},
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plugin=lbaas_plugin)
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return lbaas_plugin.get_lbaas_agent_hosting_pool(
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request.context, kwargs['pool_id'])
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class Lbaas_agentscheduler(extensions.ExtensionDescriptor):
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"""Extension class supporting LBaaS agent scheduler.
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"""
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@classmethod
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def get_name(cls):
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return "Loadbalancer Agent Scheduler"
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@classmethod
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def get_alias(cls):
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return constants.LBAAS_AGENT_SCHEDULER_EXT_ALIAS
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@classmethod
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def get_description(cls):
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return "Schedule pools among lbaas agents"
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@classmethod
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def get_namespace(cls):
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return "http://docs.openstack.org/ext/lbaas_agent_scheduler/api/v1.0"
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@classmethod
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def get_updated(cls):
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return "2013-02-07T10:00:00-00:00"
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@classmethod
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def get_resources(cls):
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"""Returns Ext Resources."""
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exts = []
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parent = dict(member_name="agent",
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collection_name="agents")
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controller = resource.Resource(PoolSchedulerController(),
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base.FAULT_MAP)
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exts.append(extensions.ResourceExtension(
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LOADBALANCER_POOLS, controller, parent))
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parent = dict(member_name="pool",
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collection_name="pools")
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controller = resource.Resource(LbaasAgentHostingPoolController(),
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base.FAULT_MAP)
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exts.append(extensions.ResourceExtension(
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LOADBALANCER_AGENT, controller, parent,
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path_prefix=plugin_const.
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COMMON_PREFIXES[plugin_const.LOADBALANCER]))
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return exts
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def get_extended_resources(self, version):
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return {}
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class NoEligibleLbaasAgent(loadbalancer.NoEligibleBackend):
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message = _("No eligible loadbalancer agent found "
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"for pool %(pool_id)s.")
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class NoActiveLbaasAgent(agent.AgentNotFound):
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message = _("No active loadbalancer agent found "
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"for pool %(pool_id)s.")
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class LbaasAgentSchedulerPluginBase(object):
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"""REST API to operate the lbaas agent scheduler.
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All of method must be in an admin context.
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"""
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@abc.abstractmethod
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def list_pools_on_lbaas_agent(self, context, id):
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pass
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@abc.abstractmethod
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def get_lbaas_agent_hosting_pool(self, context, pool_id):
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pass
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