27 lines
943 B
Python
27 lines
943 B
Python
# Copyright (C) 2013 Hewlett-Packard Development Company, L.P.
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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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import random
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from cinder.scheduler import weights
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class ChanceWeigher(weights.BaseHostWeigher):
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"""Chance Weigher assigns random weights to hosts.
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Used to spread volumes randomly across a list of equally suitable hosts.
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"""
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def _weigh_object(self, host_state, weight_properties):
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return random.random()
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