0e7bfe61bd
The aim of this patchset is to integrate taskflow in the Watcher Applier. Taskflow will help us a lot to make Action Plan execution easy, consistent, scalable and reliable. DocImpact Partially implements: blueprint use-taskflow Change-Id: I903d6509d74a61ad64e1506b8a7156e6e91abcfb Closes-Bug: #1535326 Closes-Bug: #1531912
77 lines
2.4 KiB
Python
77 lines
2.4 KiB
Python
# -*- encoding: utf-8 -*-
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# Copyright (c) 2015 b<>com
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#
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# Authors: Jean-Emile DARTOIS <jean-emile.dartois@b-com.com>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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from oslo_log import log
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from watcher.applier.actions import base
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from watcher.common import exception
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from watcher.common import keystone as kclient
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from watcher.common import nova as nclient
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LOG = log.getLogger(__name__)
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class Migrate(base.BaseAction):
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@property
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def instance_uuid(self):
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return self.applies_to
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@property
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def migration_type(self):
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return self.input_parameters.get('migration_type')
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@property
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def dst_hypervisor(self):
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return self.input_parameters.get('dst_hypervisor')
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@property
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def src_hypervisor(self):
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return self.input_parameters.get('src_hypervisor')
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def migrate(self, destination):
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keystone = kclient.KeystoneClient()
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wrapper = nclient.NovaClient(keystone.get_credentials(),
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session=keystone.get_session())
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LOG.debug("Migrate instance %s to %s ", self.instance_uuid,
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destination)
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instance = wrapper.find_instance(self.instance_uuid)
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if instance:
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if self.migration_type == 'live':
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return wrapper.live_migrate_instance(
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instance_id=self.instance_uuid, dest_hostname=destination)
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else:
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raise exception.InvalidParameterValue(err=self.migration_type)
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else:
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raise exception.InstanceNotFound(name=self.instance_uuid)
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def execute(self):
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return self.migrate(destination=self.dst_hypervisor)
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def revert(self):
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return self.migrate(destination=self.src_hypervisor)
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def precondition(self):
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# todo(jed) check if the instance exist/ check if the instance is on
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# the src_hypervisor
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pass
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def postcondition(self):
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# todo(jed) we can image to check extra parameters (nework reponse,ect)
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pass
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