79 lines
3.0 KiB
Python
79 lines
3.0 KiB
Python
# Copyright 2017 Cisco Systems
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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 logging
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LOG = logging.getLogger(__name__)
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# A list of features and their supported microversions. Note that these are
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# explicit functioning versions, not a range.
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# There should be a minimum of two versions per feature. The first entry in
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# this list should always be the lowest possible API microversion for a
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# feature i.e. the version at which that feature was introduced. The second
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# entry should be the current service version when the feature was added to
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# horizon.
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# Further documentation can be found at
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# https://docs.openstack.org/horizon/latest/contributor/topics/
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# microversion_support.html
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MICROVERSION_FEATURES = {
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"nova": {
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"locked_attribute": ["2.9", "2.42"],
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"instance_description": ["2.19", "2.42"],
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"remote_console_mks": ["2.8", "2.53"],
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"servergroup_soft_policies": ["2.15", "2.60"],
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"servergroup_user_info": ["2.13", "2.60"],
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"multiattach": ["2.60"],
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"auto_allocated_network": ["2.37", "2.42"],
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},
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"cinder": {
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"groups": ["3.27", "3.43", "3.48"],
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"consistency_groups": ["2.0", "3.10"],
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"message_list": ["3.5", "3.29"]
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}
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}
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# NOTE(robcresswell): Since each client implements their own wrapper class for
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# API objects, we'll need to allow that to be passed in. In the future this
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# should be replaced by some common handling in Oslo.
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def get_microversion_for_features(service, features, wrapper_class,
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min_ver, max_ver):
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"""Retrieves that highest known functional microversion for features"""
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if not features:
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return None
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# Convert a single feature string into a list for backward compatibility.
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if isinstance(features, str):
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features = [features]
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try:
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service_features = MICROVERSION_FEATURES[service]
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except KeyError:
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LOG.debug("'%s' could not be found in the MICROVERSION_FEATURES dict",
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service)
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return None
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feature_versions = set(service_features[features[0]])
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for feature in features[1:]:
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feature_versions &= set(service_features[feature])
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if not feature_versions:
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return None
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# Sort version candidates from larger versins
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feature_versions = sorted(feature_versions, reverse=True,
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key=lambda v: [int(i) for i in v.split('.')])
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for version in feature_versions:
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microversion = wrapper_class(version)
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if microversion.matches(min_ver, max_ver):
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return microversion
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return None
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