86 lines
3.3 KiB
Python
86 lines
3.3 KiB
Python
# Copyright 2012 OpenStack Foundation
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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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"""The Extended Server Attributes API extension."""
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from nova.api.openstack import api_version_request
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from nova.api.openstack import extensions
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from nova.api.openstack import wsgi
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ALIAS = "os-extended-server-attributes"
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authorize = extensions.os_compute_soft_authorizer(ALIAS)
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class ExtendedServerAttributesController(wsgi.Controller):
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def __init__(self, *args, **kwargs):
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super(ExtendedServerAttributesController, self).__init__(*args,
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**kwargs)
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self.api_version_2_3 = api_version_request.APIVersionRequest('2.3')
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def _extend_server(self, context, server, instance, requested_version):
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key = "OS-EXT-SRV-ATTR:hypervisor_hostname"
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server[key] = instance.node
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properties = ['host', 'name']
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if requested_version >= self.api_version_2_3:
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properties += ['reservation_id', 'launch_index',
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'hostname', 'kernel_id', 'ramdisk_id',
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'root_device_name', 'user_data']
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for attr in properties:
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if attr == 'name':
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key = "OS-EXT-SRV-ATTR:instance_%s" % attr
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else:
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key = "OS-EXT-SRV-ATTR:%s" % attr
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server[key] = instance[attr]
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@wsgi.extends
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def show(self, req, resp_obj, id):
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context = req.environ['nova.context']
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if authorize(context):
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server = resp_obj.obj['server']
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db_instance = req.get_db_instance(server['id'])
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# server['id'] is guaranteed to be in the cache due to
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# the core API adding it in its 'show' method.
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self._extend_server(context, server, db_instance,
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req.api_version_request)
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@wsgi.extends
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def detail(self, req, resp_obj):
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context = req.environ['nova.context']
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if authorize(context):
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servers = list(resp_obj.obj['servers'])
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for server in servers:
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db_instance = req.get_db_instance(server['id'])
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# server['id'] is guaranteed to be in the cache due to
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# the core API adding it in its 'detail' method.
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self._extend_server(context, server, db_instance,
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req.api_version_request)
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class ExtendedServerAttributes(extensions.V21APIExtensionBase):
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"""Extended Server Attributes support."""
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name = "ExtendedServerAttributes"
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alias = ALIAS
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version = 1
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def get_controller_extensions(self):
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controller = ExtendedServerAttributesController()
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extension = extensions.ControllerExtension(self, 'servers', controller)
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return [extension]
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def get_resources(self):
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return []
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