23e7f6c292
Main issue with rabbitmq clusterer setup is to shut down gospel node as last one, which is bulk of this change Co-Authored-By: Sam Yaple <sam@yaple.net> Change-Id: I88e566a19ed813b0e3eef65ef7139ccfaa0c2700 Implements: blueprint upgrade-rabbitmq Partially-implements: blueprint upgrade-kolla
71 lines
1.9 KiB
Python
71 lines
1.9 KiB
Python
#!/usr/bin/python
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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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import json
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import re
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import subprocess
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import traceback
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def convert_erlang_to_json(term):
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term = re.sub('[\s+]', '', term)
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term = re.sub('([<>].*?)}', r'"\1"}', term)
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term = re.sub('{([a-z].*?),', r'{"\1":', term)
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term = re.sub(':([a-z].*?)}', r':"\1"}', term)
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return json.loads(term)
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def main():
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try:
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raw_status = subprocess.check_output(
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"rabbitmqctl eval 'rabbit_clusterer:status().'",
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shell=True, stderr=subprocess.STDOUT
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)
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if "Rabbit is running in cluster configuration" not in raw_status:
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raise AttributeError
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status = convert_erlang_to_json(
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'\n'.join(raw_status.split('\n')[1:-3])
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)
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gospel_node = None
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for msg in status:
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if 'gospel' in msg:
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gospel_node = msg['gospel']['node'].split('@')[1]
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if gospel_node is None:
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raise AttributeError
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except AttributeError:
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result = {
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'failed': True,
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'error': raw_status,
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'changed': True
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}
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except Exception:
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result = {
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'failed': True,
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'error': traceback.format_exc(),
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'changed': True
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}
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else:
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result = {
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'failed': False,
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'hostname': gospel_node,
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'changed': False
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}
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print(json.dumps(result))
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if __name__ == '__main__':
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main()
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