forked from uncloud/uncloud
86 lines
2.8 KiB
Python
Executable file
86 lines
2.8 KiB
Python
Executable file
#!/usr/bin/env python3
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import logging
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import sys
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import importlib
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import argparse
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import multiprocessing as mp
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from uncloud import UncloudException
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from contextlib import suppress
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# the components that use etcd
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ETCD_COMPONENTS= ['api',
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'scheduler',
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'host',
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'filescanner',
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'imagescanner',
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'metadata',
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'configure' ]
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ALL_COMPONENTS = ETCD_COMPONENTS.copy()
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ALL_COMPONENTS.append('cli')
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def exception_hook(exc_type, exc_value, exc_traceback):
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logging.getLogger(__name__).error(
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'Uncaught exception',
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exc_info=(exc_type, exc_value, exc_traceback)
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)
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sys.excepthook = exception_hook
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if __name__ == '__main__':
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# Setting up root logger
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logger = logging.getLogger()
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logger.setLevel(logging.DEBUG)
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arg_parser = argparse.ArgumentParser()
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subparsers = arg_parser.add_subparsers(dest='command')
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parent_parser = argparse.ArgumentParser(add_help=False)
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parent_parser.add_argument('--debug', '-d', action='store_true', default=False,
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help='More verbose logging')
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etcd_parser = argparse.ArgumentParser(add_help=False)
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etcd_parser.add_argument('--etcd-host')
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etcd_parser.add_argument('--etcd-port')
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etcd_parser.add_argument('--etcd-ca-cert',
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help="CA that signed the etcd certificate")
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etcd_parser.add_argument('--etcd-cert-cert',
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help="Path to client certificate")
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etcd_parser.add_argument('--etcd-cert-key',
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help="Path to client certificate key")
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for component in ALL_COMPONENTS:
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mod = importlib.import_module('uncloud.{}.main'.format(component))
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parser = getattr(mod, 'arg_parser')
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if component in ETCD_COMPONENTS:
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subparsers.add_parser(name=parser.prog, parents=[parser, parent_parser, etcd_parser])
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else:
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subparsers.add_parser(name=parser.prog, parents=[parser, parent_parser])
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args = arg_parser.parse_args()
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if not args.command:
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arg_parser.print_help()
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else:
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# if we start etcd in seperate process with default settings
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# i.e inheriting few things from parent process etcd3 module
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# errors out, so the following command configure multiprocessing
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# module to not inherit anything from parent.
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# mp.set_start_method('spawn')
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arguments = vars(args)
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print(arguments)
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print(etcd_parser)
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try:
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name = arguments.pop('command')
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mod = importlib.import_module('uncloud.{}.main'.format(name))
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main = getattr(mod, 'main')
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main(arguments)
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except UncloudException as err:
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logger.error(err)
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sys.exit(1)
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except Exception as err:
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logger.exception(err)
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sys.exit(1)
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