1e2dfc4bb4
Multiattach capable volumes can only be attached with microversion 2.60 or later, so this checks if the volume being attached is multiattach capable and if microversion 2.60 is available, use it. Part of blueprint multi-attach-volume Closes-Bug: #1751564 Change-Id: If708e3edb05cff6e93cfc3dfccb91b1441dcd181
77 lines
2.9 KiB
Python
77 lines
2.9 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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},
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"cinder": {
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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 compatiblity.
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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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