25 lines
960 B
Python
25 lines
960 B
Python
# Copyright (c) 2014 Cisco Systems Inc.
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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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from nova.scheduler.filters import metrics_filter
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from nova.scheduler.solvers import constraints
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class MetricsConstraint(constraints.BaseFilterConstraint):
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"""This constraint is used to filter out those hosts which don't have the
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corresponding metrics.
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"""
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host_filter_cls = metrics_filter.MetricsFilter
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