nova/nova/api/openstack/compute/plugins/v3/scheduler_hints.py

42 lines
1.3 KiB
Python

# Copyright 2011 OpenStack Foundation
#
# 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.
import webob.exc
from nova.api.openstack import extensions
from nova.i18n import _
ALIAS = "os-scheduler-hints"
class SchedulerHints(extensions.V3APIExtensionBase):
"""Pass arbitrary key/value pairs to the scheduler."""
name = "SchedulerHints"
alias = ALIAS
version = 1
def get_controller_extensions(self):
return []
def get_resources(self):
return []
def server_create(self, server_dict, create_kwargs):
scheduler_hints = server_dict.get(ALIAS + ':scheduler_hints', {})
if not isinstance(scheduler_hints, dict):
msg = _("Malformed scheduler_hints attribute")
raise webob.exc.HTTPBadRequest(explanation=msg)
create_kwargs['scheduler_hints'] = scheduler_hints