ddb3199318
Each service implemented the get_backdoor_port method individually. This patch moves the implementation of this method to the base rpc API instead, and removes the now unnecessary code from each of the services. The server side method was left on all of the managers for rpc backwards copmatibility. They can be removed on the next major rpc version bump of those APIs. Part of blueprint base-rpc-api. Change-Id: Ia8838fafd80eb86a1c2d66f5e97370042d8d8c53
124 lines
4.9 KiB
Python
124 lines
4.9 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012, Red Hat, Inc.
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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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"""
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Client side of the scheduler manager RPC API.
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"""
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from oslo.config import cfg
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from nova.openstack.common import jsonutils
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import nova.openstack.common.rpc.proxy
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rpcapi_opts = [
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cfg.StrOpt('scheduler_topic',
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default='scheduler',
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help='the topic scheduler nodes listen on'),
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]
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CONF = cfg.CONF
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CONF.register_opts(rpcapi_opts)
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class SchedulerAPI(nova.openstack.common.rpc.proxy.RpcProxy):
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'''Client side of the scheduler rpc API.
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API version history:
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1.0 - Initial version.
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1.1 - Changes to prep_resize():
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- remove instance_uuid, add instance
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- remove instance_type_id, add instance_type
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- remove topic, it was unused
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1.2 - Remove topic from run_instance, it was unused
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1.3 - Remove instance_id, add instance to live_migration
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1.4 - Remove update_db from prep_resize
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1.5 - Add reservations argument to prep_resize()
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1.6 - Remove reservations argument to run_instance()
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1.7 - Add create_volume() method, remove topic from live_migration()
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2.0 - Remove 1.x backwards compat
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2.1 - Add image_id to create_volume()
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2.2 - Remove reservations argument to create_volume()
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2.3 - Remove create_volume()
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2.4 - Change update_service_capabilities()
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- accepts a list of capabilities
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2.5 - Add get_backdoor_port()
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2.6 - Add select_hosts()
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'''
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#
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# NOTE(russellb): This is the default minimum version that the server
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# (manager) side must implement unless otherwise specified using a version
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# argument to self.call()/cast()/etc. here. It should be left as X.0 where
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# X is the current major API version (1.0, 2.0, ...). For more information
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# about rpc API versioning, see the docs in
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# openstack/common/rpc/dispatcher.py.
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#
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BASE_RPC_API_VERSION = '2.0'
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def __init__(self):
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super(SchedulerAPI, self).__init__(topic=CONF.scheduler_topic,
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default_version=self.BASE_RPC_API_VERSION)
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def run_instance(self, ctxt, request_spec, admin_password,
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injected_files, requested_networks, is_first_time,
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filter_properties):
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return self.cast(ctxt, self.make_msg('run_instance',
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request_spec=request_spec, admin_password=admin_password,
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injected_files=injected_files,
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requested_networks=requested_networks,
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is_first_time=is_first_time,
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filter_properties=filter_properties))
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def prep_resize(self, ctxt, instance, instance_type, image,
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request_spec, filter_properties, reservations):
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instance_p = jsonutils.to_primitive(instance)
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instance_type_p = jsonutils.to_primitive(instance_type)
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reservations_p = jsonutils.to_primitive(reservations)
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image_p = jsonutils.to_primitive(image)
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self.cast(ctxt, self.make_msg('prep_resize',
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instance=instance_p, instance_type=instance_type_p,
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image=image_p, request_spec=request_spec,
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filter_properties=filter_properties,
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reservations=reservations_p))
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def show_host_resources(self, ctxt, host):
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return self.call(ctxt, self.make_msg('show_host_resources', host=host))
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def live_migration(self, ctxt, block_migration, disk_over_commit,
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instance, dest):
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# NOTE(comstud): Call vs cast so we can get exceptions back, otherwise
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# this call in the scheduler driver doesn't return anything.
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instance_p = jsonutils.to_primitive(instance)
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return self.call(ctxt, self.make_msg('live_migration',
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block_migration=block_migration,
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disk_over_commit=disk_over_commit, instance=instance_p,
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dest=dest))
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def update_service_capabilities(self, ctxt, service_name, host,
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capabilities):
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self.fanout_cast(ctxt, self.make_msg('update_service_capabilities',
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service_name=service_name, host=host,
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capabilities=capabilities),
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version='2.4')
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def select_hosts(self, ctxt, request_spec, filter_properties):
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return self.call(ctxt, self.make_msg('select_hosts',
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request_spec=request_spec,
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filter_properties=filter_properties),
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version='2.6')
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