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60 lines
2.2 KiB
Python
60 lines
2.2 KiB
Python
#!/usr/bin/env python
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'''
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doublethink/cli.py - doublethink Command Line Tools
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Copyright (C) 2017 Internet Archive
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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'''
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import os, sys
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import argparse
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import doublethink
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import logging
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def purge_stale_services(argv=None):
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"""Command-line utility to periodically purge stale entries from the "services" table.
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It is designed to be used in conjunction with cron.
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"""
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argv = argv or sys.argv
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arg_parser = argparse.ArgumentParser(
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prog=os.path.basename(argv[0]), description=(
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'doublethink-purge-stale-services: utility to periodically '
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'purge stale entries from the "services" table.'))
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arg_parser.add_argument(
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"-d", "--rethinkdb-db", required=True, dest="database",
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help="A RethinkDB database containing a 'services' table")
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arg_parser.add_argument("-s", "--rethinkdb-servers",
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metavar="SERVERS", dest="servers", default='localhost',
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help="rethinkdb servers, e.g. db0.foo.org,db0.foo.org:38015,db1.foo.org")
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arg_parser.add_argument(
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'-v', '--verbose', dest='log_level', action='store_const',
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default=logging.INFO, const=logging.DEBUG, help=(
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'verbose logging'))
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args = arg_parser.parse_args(argv[1:])
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logging.basicConfig(
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stream=sys.stdout, level=args.log_level, format=(
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'%(asctime)s %(process)d %(levelname)s %(threadName)s '
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'%(name)s.%(funcName)s(%(filename)s:%(lineno)d) %(message)s'))
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args.servers = [srv.strip() for srv in args.servers.split(",")]
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rethinker = doublethink.Rethinker(servers=args.servers, db=args.database)
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registry = doublethink.services.ServiceRegistry(rethinker)
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registry.purge_stale_services()
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return 0
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