Files
python-ganttclient/nova/scheduler/rpcapi.py
Chris Behrens fbdd11f62d scheduler prep_resize should not update instance['host']
This is done by the manager once things are ready on the destination
compute node.

Fixes bug 1034593

Also removes now-unneeded update_db argument passed via rpcapi and bumps
scheduler rpcapi version for prep_resize to 1.4

Change-Id: I0ac3be39877f3afcf42f5996d0da90042fe7c6e3
2012-08-08 22:49:27 +00:00

89 lines
3.5 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
'''
BASE_RPC_API_VERSION = '1.0'
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, reservations, call=True):
rpc_method = self.call if call else self.cast
return rpc_method(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,
reservations=reservations), version='1.2')
def prep_resize(self, ctxt, instance, instance_type, image,
request_spec, filter_properties):
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), version='1.4')
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, topic):
# 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, topic=topic), version='1.3')
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))