61 lines
2.0 KiB
Python
61 lines
2.0 KiB
Python
# Copyright 2016 Huawei Technologies Co.,LTD.
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# All Rights Reserved.
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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 engine RPC API.
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"""
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from oslo_config import cfg
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import oslo_messaging as messaging
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from nimble.common import rpc
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from nimble.engine import manager
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from nimble.objects import base as objects_base
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CONF = cfg.CONF
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class EngineAPI(object):
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"""Client side of the engine RPC API.
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API version history:
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| 1.0 - Initial version.
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"""
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RPC_API_VERSION = '1.0'
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def __init__(self, topic=None):
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super(EngineAPI, self).__init__()
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self.topic = topic
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if self.topic is None:
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self.topic = manager.MANAGER_TOPIC
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target = messaging.Target(topic=self.topic,
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version='1.0')
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serializer = objects_base.NimbleObjectSerializer()
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self.client = rpc.get_client(target,
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version_cap=self.RPC_API_VERSION,
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serializer=serializer)
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def create_instance(self, context, instance):
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"""Signal to engine service to perform a deployment."""
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cctxt = self.client.prepare(topic=self.topic, server=CONF.host)
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return cctxt.cast(context, 'create_instance', instance=instance)
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def delete_instance(self, context, instance):
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"""Signal to engine service to delete an instance."""
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cctxt = self.client.prepare(topic=self.topic, server=CONF.host)
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return cctxt.call(context, 'delete_instance', instance=instance)
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