76 lines
2.5 KiB
Python
76 lines
2.5 KiB
Python
# Copyright 2018 Canonical Ltd.
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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 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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"""Module for disfiguring Juju bundles."""
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import argparse
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import yaml
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import sys
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def remove_machine_specification(input_yaml):
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"""
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Will remove the machine specifications from a supplied bundle.
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:param input_yaml: Juju bundle to strip machinens from
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:type input_yaml: dict
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:returns: bundle without machine placements
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:rtype: dict
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"""
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machines = input_yaml.pop("machines", None)
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input_series = input_yaml.get('series', None)
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if machines:
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for (name, details) in machines.items():
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if details['series']:
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if input_series and details['series'] != input_series:
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raise Exception("Mixing series is not supported")
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input_yaml['series'] = details['series']
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input_series = input_yaml['series']
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for (application_name, application) in input_yaml['services'].items():
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application.pop("to", None)
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return input_yaml
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def parse_args(args):
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"""Parse command line arguments.
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:param args: List of configure functions functions
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:type list: [str1, str2,...] List of command line arguments
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:returns: Parsed arguments
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:rtype: Namespace
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"""
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parser = argparse.ArgumentParser()
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parser.add_argument('-i', '--input',
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help='Bundle to remove placement from',
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required=True)
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parser.add_argument('-o', '--output',
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help='Where to output',
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default="/dev/stdout")
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return parser.parse_args(args)
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def main():
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"""Run the configuration defined by the command line args.
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Remove machine placement as specified in the command line args
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"""
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args = parse_args(sys.argv[1:])
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with open(args.input, 'r') as file:
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input_yaml = yaml.safe_load(file)
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stripped_yaml = remove_machine_specification(input_yaml)
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with open(args.output, 'w') as output:
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print(yaml.dump(stripped_yaml), file=output)
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