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- #!/usr/bin/env python
- """
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
- http://www.apache.org/licenses/LICENSE-2.0
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- """
- from resource_management.core.resources.system import Execute
- from resource_management.libraries.functions import conf_select
- from resource_management.libraries.functions import stack_select
- from resource_management.libraries.functions.format import format
- def prestart(env, stack_component):
- import params
- if params.version and params.stack_supports_rolling_upgrade:
- conf_select.select(params.stack_name, stack_component, params.version)
- stack_select.select(stack_component, params.version)
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