uncloud-mravi/scripts/ucloud

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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
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import colorama
from logging.handlers import SysLogHandler
from ucloud.configure.main import configure_parser
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def exception_hook(exc_type, exc_value, exc_traceback):
logger.error(
'Uncaught exception',
exc_info=(exc_type, exc_value, exc_traceback)
)
# print('Error: ', end='')
# print(exc_type, exc_value, exc_traceback)
class NoTracebackStreamHandler(logging.StreamHandler):
def handle(self, record):
info, cache = record.exc_info, record.exc_text
record.exc_info, record.exc_text = None, None
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if record.levelname == 'WARNING':
color = colorama.Fore.YELLOW
elif record.levelname == 'ERROR':
color = colorama.Fore.LIGHTRED_EX
else:
color = colorama.Fore.RED
try:
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print(color)
super().handle(record)
finally:
record.exc_info = info
record.exc_text = cache
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print(colorama.Style.RESET_ALL)
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if __name__ == '__main__':
sys.excepthook = exception_hook
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arg_parser = argparse.ArgumentParser()
subparsers = arg_parser.add_subparsers(dest="command")
api_parser = subparsers.add_parser("api")
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")
configure_parser(config_parser)
args = arg_parser.parse_args()
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if not args.command:
arg_parser.print_help()
else:
# Setting up root logger
logger = logging.getLogger('ucloud')
syslog_handler = SysLogHandler(address='/dev/log')
syslog_handler.setLevel(logging.DEBUG)
syslog_formatter = logging.Formatter('%(pathname)s:%(lineno)d -- %(levelname)-8s %(message)s')
syslog_handler.setFormatter(syslog_formatter)
stream_handler = NoTracebackStreamHandler()
stream_handler.setLevel(logging.WARNING)
stream_formatter = logging.Formatter('%(message)s')
stream_handler.setFormatter(stream_formatter)
logger.addHandler(syslog_handler)
logger.addHandler(stream_handler)
# 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("ucloud.{}.main".format(name))
main = getattr(mod, "main")
main(**arguments)
except Exception as err:
logger.exception(err)