64 lines
1.9 KiB
Python
Executable File
64 lines
1.9 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright 2022 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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import json
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import yaml
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from subprocess import check_output, CalledProcessError
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from charmhelpers.core.hookenv import (
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ERROR,
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log,
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function_fail,
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function_get,
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function_set
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)
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def get_list_crush_rules(output_format="text"):
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"""Get list of Ceph crush rules.
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:param output_format: specify output format
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:type output_format: str
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:returns: text: list of tuple (<rule_id> <rule_name>) or
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yaml: list of crush rules in yaml format
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json: list of crush rules in json format
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:rtype: str
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"""
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crush_rules = check_output(["ceph", "--id", "admin", "osd", "crush",
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"rule", "dump", "-f", "json"]).decode("UTF-8")
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crush_rules = json.loads(crush_rules)
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if output_format == "text":
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return ",".join(["({}, {})".format(rule["rule_id"], rule["rule_name"])
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for rule in crush_rules])
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elif output_format == "yaml":
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return yaml.dump(crush_rules)
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else:
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return json.dumps(crush_rules)
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def main():
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try:
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list_crush_rules = get_list_crush_rules(function_get("format"))
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function_set({"message": list_crush_rules})
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except CalledProcessError as error:
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log(error, ERROR)
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function_fail("List crush rules failed with error: {}".format(error))
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if __name__ == "__main__":
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main()
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