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OpenStack Study: hide_server_addresses.py**** CubicPower OpenStack Study ****
# Copyright 2012 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. """Extension for hiding server addresses in certain states.""" from oslo.config import cfg from nova.api.openstack import extensions from nova.api.openstack import wsgi from nova.compute import vm_states opts = [ cfg.ListOpt('osapi_hide_server_address_states', default=[vm_states.BUILDING], help='List of instance states that should hide network info'), ] CONF = cfg.CONF CONF.register_opts(opts) ALIAS = 'os-hide-server-addresses' authorize = extensions.soft_extension_authorizer('compute', 'v3:' + ALIAS)
**** CubicPower OpenStack Study **** class Controller(wsgi.Controller):
**** CubicPower OpenStack Study **** def __init__(self, *args, **kwargs): super(Controller, self).__init__(*args, **kwargs) hidden_states = CONF.osapi_hide_server_address_states # NOTE(jkoelker) _ is not considered uppercase ;) valid_vm_states = [getattr(vm_states, state) for state in dir(vm_states) if state.isupper()] self.hide_address_states = [state.lower() for state in hidden_states if state in valid_vm_states]
**** CubicPower OpenStack Study **** def _perhaps_hide_addresses(self, instance, resp_server): if instance.get('vm_state') in self.hide_address_states: resp_server['addresses'] = {} @wsgi.extends
**** CubicPower OpenStack Study **** def show(self, req, resp_obj, id): resp = resp_obj if not authorize(req.environ['nova.context']): return if 'server' in resp.obj and 'addresses' in resp.obj['server']: instance = req.get_db_instance(id) self._perhaps_hide_addresses(instance, resp.obj['server']) @wsgi.extends
**** CubicPower OpenStack Study **** def detail(self, req, resp_obj): resp = resp_obj if not authorize(req.environ['nova.context']): return for server in list(resp.obj['servers']): if 'addresses' in server: instance = req.get_db_instance(server['id']) self._perhaps_hide_addresses(instance, server)
**** CubicPower OpenStack Study **** class HideServerAddresses(extensions.V3APIExtensionBase): """Support hiding server addresses in certain states.""" name = 'HideServerAddresses' alias = ALIAS version = 1
**** CubicPower OpenStack Study **** def get_controller_extensions(self): return [extensions.ControllerExtension(self, 'servers', Controller())]
**** CubicPower OpenStack Study **** def get_resources(self): return []
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