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OpenStack Study: virtual_interfaces.py**** CubicPower OpenStack Study ****
# Copyright (C) 2011 Midokura KK # 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. """The virtual interfaces extension.""" from nova.api.openstack import common from nova.api.openstack import extensions from nova.api.openstack import wsgi from nova.api.openstack import xmlutil from nova import compute from nova import network authorize = extensions.extension_authorizer('compute', 'virtual_interfaces') vif_nsmap = {None: wsgi.XMLNS_V11}
**** CubicPower OpenStack Study **** class VirtualInterfaceTemplate(xmlutil.TemplateBuilder):
**** CubicPower OpenStack Study **** def construct(self): root = xmlutil.TemplateElement('virtual_interfaces') elem = xmlutil.SubTemplateElement(root, 'virtual_interface', selector='virtual_interfaces') elem.set('id') elem.set('mac_address') return xmlutil.MasterTemplate(root, 1, nsmap=vif_nsmap) def _translate_vif_summary_view(_context, vif): """Maps keys for VIF summary view.""" d = {} d['id'] = vif['uuid'] d['mac_address'] = vif['address'] return d
**** CubicPower OpenStack Study **** def _translate_vif_summary_view(_context, vif): """Maps keys for VIF summary view.""" d = {} d['id'] = vif['uuid'] d['mac_address'] = vif['address'] return d
**** CubicPower OpenStack Study **** class ServerVirtualInterfaceController(object): """The instance VIF API controller for the OpenStack API. """
**** CubicPower OpenStack Study **** def __init__(self): self.compute_api = compute.API() self.network_api = network.API() super(ServerVirtualInterfaceController, self).__init__()
**** CubicPower OpenStack Study **** def _items(self, req, server_id, entity_maker): """Returns a list of VIFs, transformed through entity_maker.""" context = req.environ['nova.context'] instance = common.get_instance(self.compute_api, context, server_id) vifs = self.network_api.get_vifs_by_instance(context, instance) limited_list = common.limited(vifs, req) res = [entity_maker(context, vif) for vif in limited_list] return {'virtual_interfaces': res} @wsgi.serializers(xml=VirtualInterfaceTemplate)
**** CubicPower OpenStack Study **** def index(self, req, server_id): """Returns the list of VIFs for a given instance.""" authorize(req.environ['nova.context']) return self._items(req, server_id, entity_maker=_translate_vif_summary_view)
**** CubicPower OpenStack Study **** class Virtual_interfaces(extensions.ExtensionDescriptor): """Virtual interface support.""" name = "VirtualInterfaces" alias = "os-virtual-interfaces" namespace = ("http://docs.openstack.org/compute/ext/" "virtual_interfaces/api/v1.1") updated = "2011-08-17T00:00:00+00:00"
**** CubicPower OpenStack Study **** def get_resources(self): resources = [] res = extensions.ResourceExtension( 'os-virtual-interfaces', controller=ServerVirtualInterfaceController(), parent=dict(member_name='server', collection_name='servers')) resources.append(res) return resources
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