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OpenStack Study: extended_ips.py**** CubicPower OpenStack Study ****
# # 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 Extended Ips API extension.""" import itertools from nova.api.openstack import common from nova.api.openstack.compute import ips from nova.api.openstack import extensions from nova.api.openstack import wsgi from nova.api.openstack import xmlutil from nova import compute authorize = extensions.soft_extension_authorizer('compute', 'extended_ips')
**** CubicPower OpenStack Study **** class ExtendedIpsController(wsgi.Controller):
**** CubicPower OpenStack Study **** def __init__(self, *args, **kwargs): super(ExtendedIpsController, self).__init__(*args, **kwargs) self.compute_api = compute.API()
**** CubicPower OpenStack Study **** def _extend_server(self, context, server, instance): key = "%s:type" % Extended_ips.alias networks = common.get_networks_for_instance(context, instance) for label, network in networks.items(): # NOTE(vish): ips are hidden in some states via the # hide_server_addresses extension. if label in server['addresses']: all_ips = itertools.chain(network["ips"], network["floating_ips"]) for i, ip in enumerate(all_ips): server['addresses'][label][i][key] = ip['type'] @wsgi.extends
**** CubicPower OpenStack Study **** def show(self, req, resp_obj, id): context = req.environ['nova.context'] if authorize(context): # Attach our slave template to the response object resp_obj.attach(xml=ExtendedIpsServerTemplate()) server = resp_obj.obj['server'] db_instance = req.get_db_instance(server['id']) # server['id'] is guaranteed to be in the cache due to # the core API adding it in its 'show' method. self._extend_server(context, server, db_instance) @wsgi.extends
**** CubicPower OpenStack Study **** def detail(self, req, resp_obj): context = req.environ['nova.context'] if authorize(context): # Attach our slave template to the response object resp_obj.attach(xml=ExtendedIpsServersTemplate()) servers = list(resp_obj.obj['servers']) for server in servers: db_instance = req.get_db_instance(server['id']) # server['id'] is guaranteed to be in the cache due to # the core API adding it in its 'detail' method. self._extend_server(context, server, db_instance)
**** CubicPower OpenStack Study **** class Extended_ips(extensions.ExtensionDescriptor): """Adds type parameter to the ip list.""" name = "ExtendedIps" alias = "OS-EXT-IPS" namespace = ("http://docs.openstack.org/compute/ext/" "extended_ips/api/v1.1") updated = "2013-01-06T00:00:00+00:00"
**** CubicPower OpenStack Study **** def get_controller_extensions(self): controller = ExtendedIpsController() extension = extensions.ControllerExtension(self, 'servers', controller) return [extension] def make_server(elem): elem.append(ips.AddressesTemplate()) ip = elem['addresses']['network']['ip'] ip.set('{%s}type' % Extended_ips.namespace, '%s:type' % Extended_ips.alias)
**** CubicPower OpenStack Study **** def make_server(elem): elem.append(ips.AddressesTemplate()) ip = elem['addresses']['network']['ip'] ip.set('{%s}type' % Extended_ips.namespace, '%s:type' % Extended_ips.alias)
**** CubicPower OpenStack Study **** class ExtendedIpsServerTemplate(xmlutil.TemplateBuilder):
**** CubicPower OpenStack Study **** def construct(self): root = xmlutil.TemplateElement('server', selector='server') xmlutil.SubTemplateElement(root, 'server', selector='servers') make_server(root) return xmlutil.SlaveTemplate(root, 1, nsmap={ Extended_ips.alias: Extended_ips.namespace})
**** CubicPower OpenStack Study **** class ExtendedIpsServersTemplate(xmlutil.TemplateBuilder):
**** CubicPower OpenStack Study **** def construct(self): root = xmlutil.TemplateElement('servers') elem = xmlutil.SubTemplateElement(root, 'server', selector='servers') make_server(elem) return xmlutil.SlaveTemplate(root, 1, nsmap={ Extended_ips.alias: Extended_ips.namespace})
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