48f91f9a49
Like we did for the compute RPC API, add version 2.0 of the scheduler API while still retaining 1.x support. This allows all services to be updated with 2.0 support before 1.x support is removed. Change-Id: If438d5b6f521ea4c487d1490d4b8cf6547ba5c72
99 lines
3.9 KiB
Python
99 lines
3.9 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2012, Red Hat, Inc.
|
|
#
|
|
# 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.
|
|
|
|
"""
|
|
Client side of the scheduler manager RPC API.
|
|
"""
|
|
|
|
from nova import flags
|
|
from nova.openstack.common import jsonutils
|
|
import nova.openstack.common.rpc.proxy
|
|
|
|
|
|
FLAGS = flags.FLAGS
|
|
|
|
|
|
class SchedulerAPI(nova.openstack.common.rpc.proxy.RpcProxy):
|
|
'''Client side of the scheduler rpc API.
|
|
|
|
API version history:
|
|
|
|
1.0 - Initial version.
|
|
1.1 - Changes to prep_resize():
|
|
- remove instance_uuid, add instance
|
|
- remove instance_type_id, add instance_type
|
|
- remove topic, it was unused
|
|
1.2 - Remove topic from run_instance, it was unused
|
|
1.3 - Remove instance_id, add instance to live_migration
|
|
1.4 - Remove update_db from prep_resize
|
|
1.5 - Add reservations argument to prep_resize()
|
|
1.6 - Remove reservations argument to run_instance()
|
|
1.7 - Add create_volume() method, remove topic from live_migration()
|
|
|
|
2.0 - Remove 1.x backwards compat
|
|
'''
|
|
|
|
BASE_RPC_API_VERSION = '2.0'
|
|
|
|
def __init__(self):
|
|
super(SchedulerAPI, self).__init__(topic=FLAGS.scheduler_topic,
|
|
default_version=self.BASE_RPC_API_VERSION)
|
|
|
|
def run_instance(self, ctxt, request_spec, admin_password,
|
|
injected_files, requested_networks, is_first_time,
|
|
filter_properties):
|
|
return self.cast(ctxt, self.make_msg('run_instance',
|
|
request_spec=request_spec, admin_password=admin_password,
|
|
injected_files=injected_files,
|
|
requested_networks=requested_networks,
|
|
is_first_time=is_first_time,
|
|
filter_properties=filter_properties))
|
|
|
|
def prep_resize(self, ctxt, instance, instance_type, image,
|
|
request_spec, filter_properties, reservations):
|
|
instance_p = jsonutils.to_primitive(instance)
|
|
instance_type_p = jsonutils.to_primitive(instance_type)
|
|
self.cast(ctxt, self.make_msg('prep_resize',
|
|
instance=instance_p, instance_type=instance_type_p,
|
|
image=image, request_spec=request_spec,
|
|
filter_properties=filter_properties,
|
|
reservations=reservations))
|
|
|
|
def show_host_resources(self, ctxt, host):
|
|
return self.call(ctxt, self.make_msg('show_host_resources', host=host))
|
|
|
|
def live_migration(self, ctxt, block_migration, disk_over_commit,
|
|
instance, dest):
|
|
# NOTE(comstud): Call vs cast so we can get exceptions back, otherwise
|
|
# this call in the scheduler driver doesn't return anything.
|
|
instance_p = jsonutils.to_primitive(instance)
|
|
return self.call(ctxt, self.make_msg('live_migration',
|
|
block_migration=block_migration,
|
|
disk_over_commit=disk_over_commit, instance=instance_p,
|
|
dest=dest))
|
|
|
|
def create_volume(self, ctxt, volume_id, snapshot_id, reservations):
|
|
self.cast(ctxt,
|
|
self.make_msg('create_volume',
|
|
volume_id=volume_id, snapshot_id=snapshot_id,
|
|
reservations=reservations))
|
|
|
|
def update_service_capabilities(self, ctxt, service_name, host,
|
|
capabilities):
|
|
self.fanout_cast(ctxt, self.make_msg('update_service_capabilities',
|
|
service_name=service_name, host=host,
|
|
capabilities=capabilities))
|