uncloud-mravi/scripts/uncloud

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#!/usr/bin/env python3
import argparse
import logging
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import importlib
import multiprocessing as mp
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import sys
from logging.handlers import SysLogHandler
from uncloud.configure.main import configure_parser
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from uncloud import UncloudException
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def exception_hook(exc_type, exc_value, exc_traceback):
logging.getLogger(__name__).error(
'Uncaught exception',
exc_info=(exc_type, exc_value, exc_traceback)
)
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sys.excepthook = exception_hook
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if __name__ == '__main__':
# Setting up root logger
logger = logging.getLogger()
logger.setLevel(logging.DEBUG)
parent_parser = argparse.ArgumentParser(add_help=False)
parent_parser.add_argument("--debug", "-d", action='store_true')
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arg_parser = argparse.ArgumentParser()
subparsers = arg_parser.add_subparsers(dest="command")
api_parser = subparsers.add_parser("api", parents=[parent_parser])
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host_parser = subparsers.add_parser("host")
host_parser.add_argument("--hostname", required=True)
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scheduler_parser = subparsers.add_parser("scheduler")
filescanner_parser = subparsers.add_parser("filescanner")
imagescanner_parser = subparsers.add_parser("imagescanner")
metadata_parser = subparsers.add_parser("metadata")
config_parser = subparsers.add_parser("configure")
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configure_parser(config_parser)
args = arg_parser.parse_args()
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if not args.command:
arg_parser.print_help()
else:
# if we start etcd in seperate process with default settings
# i.e inheriting few things from parent process etcd3 module
# errors out, so the following command configure multiprocessing
# module to not inherit anything from parent.
mp.set_start_method('spawn')
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arguments = vars(args)
try:
name = arguments.pop('command')
mod = importlib.import_module("uncloud.{}.main".format(name))
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main = getattr(mod, "main")
main(**arguments)
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except UncloudException as err:
logger.error(err)
except Exception as err:
logger.exception(err)