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#!/usr/bin/env python3
import logging
import sys
import importlib
import argparse
import multiprocessing as mp
from uncloud import UncloudException
from contextlib import suppress
def exception_hook(exc_type, exc_value, exc_traceback):
logging.getLogger(__name__).error(
'Uncaught exception',
exc_info=(exc_type, exc_value, exc_traceback)
)
sys.excepthook = exception_hook
if __name__ == '__main__':
# Setting up root logger
logger = logging.getLogger()
logger.setLevel(logging.DEBUG)
arg_parser = argparse.ArgumentParser()
subparsers = arg_parser.add_subparsers(dest='command')
parent_parser = argparse.ArgumentParser(add_help=False)
parent_parser.add_argument('--debug', '-d', action='store_true', default=False,
help='More verbose logging')
for component in ['api', 'scheduler', 'host', 'filescanner', 'imagescanner',
'metadata', 'configure', 'cli']:
mod = importlib.import_module('uncloud.{}.main'.format(component))
parser = getattr(mod, 'arg_parser')
subparsers.add_parser(name=parser.prog, parents=[parser, parent_parser])
args = arg_parser.parse_args()
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')
arguments = vars(args)
try:
name = arguments.pop('command')
mod = importlib.import_module('uncloud.{}.main'.format(name))
main = getattr(mod, 'main')
main(**arguments)
except UncloudException as err:
logger.error(err)
except Exception as err:
logger.exception(err)