e95d51f989
Sometimes making changes in basic deployment breaks the order of
passed env files and leads to a failed deployment. This patch
orders the environment files according to the rules defined in
the capabilities-map.yaml file.
Change-Id: Idbb6f0f3adebebd429bcb3447e559838180f4b1c
(cherry picked from commit bae4296502)
98 lines
3.1 KiB
Python
98 lines
3.1 KiB
Python
# Copyright 2017 Red Hat, 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");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import yaml
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from tripleo_common import constants
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def update_in_env(swift, env, key, value='', delete_key=False):
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"""Update plan environment."""
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if delete_key:
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try:
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del env[key]
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except KeyError:
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pass
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else:
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try:
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env[key].update(value)
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except (KeyError, AttributeError):
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env[key] = value
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put_env(swift, env)
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return env
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def get_env(swift, name):
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"""Get plan environment from Swift and convert it to a dictionary."""
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env = yaml.safe_load(
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swift.get_object(name, constants.PLAN_ENVIRONMENT)[1]
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)
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# Ensure the name is correct, as it will be used to update the
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# container later
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if env.get('name') != name:
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env['name'] = name
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return env
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def put_env(swift, env):
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"""Convert given environment to yaml and upload it to Swift."""
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swift.put_object(
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env['name'],
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constants.PLAN_ENVIRONMENT,
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yaml.safe_dump(env, default_flow_style=False)
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)
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def apply_environments_order(capabilities, environments):
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"""traverses the capabilities and orders the environment files
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by dependency rules defined in capabilities-map, so that parent
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environments are first and children environments override these
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parents
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:param capabilities: dict representing capabilities-map.yaml file
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:param environments: list representing the environments section of the
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plan-environments.yaml file
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:return: list containing ordered environments
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"""
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# get ordering rules from capabilities-map file
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order_rules = {}
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for topic in capabilities.get('topics', []):
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for group in topic.get('environment_groups', []):
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for environment in group.get('environments', []):
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order_rules[environment['file']] = []
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if 'requires' in environment:
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order_rules[environment['file']] \
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= environment.get('requires', [])
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# apply ordering rules
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for e in environments:
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path = e.get('path', '')
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if path not in order_rules:
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continue
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path_pos = environments.index(e)
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for requirement in order_rules[path]:
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if {'path': requirement} in environments:
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requirement_pos = environments.index({'path': requirement})
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if requirement_pos > path_pos:
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item = environments.pop(requirement_pos)
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environments.insert(path_pos, item)
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return environments
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