33 lines
1.2 KiB
Python
33 lines
1.2 KiB
Python
# Copyright (c) 2011 Openstack, LLC.
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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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import nova.scheduler
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from nova.scheduler.filters import abstract_filter
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class AllHostsFilter(abstract_filter.AbstractHostFilter):
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"""NOP host filter. Returns all hosts in ZoneManager."""
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def instance_type_to_filter(self, instance_type):
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"""Return anything to prevent base-class from raising
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exception.
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"""
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return (self._full_name(), instance_type)
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def filter_hosts(self, zone_manager, query):
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"""Return a list of hosts from ZoneManager list."""
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return [(host, services)
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for host, services in zone_manager.service_states.iteritems()]
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