/usr/lib/python3/dist-packages/cloudinit/patcher.py is in cloud-init 18.2-14-g6d48d265-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | # Copyright (C) 2012 Canonical Ltd.
# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Scott Moser <scott.moser@canonical.com>
# Author: Joshua Harlow <harlowja@yahoo-inc.com>
#
# This file is part of cloud-init. See LICENSE file for license information.
import imp
import logging
import sys
# Default fallback format
FALL_FORMAT = ('FALLBACK: %(asctime)s - %(filename)s[%(levelname)s]: ' +
'%(message)s')
class QuietStreamHandler(logging.StreamHandler):
def handleError(self, record):
pass
def _patch_logging():
# Replace 'handleError' with one that will be more
# tolerant of errors in that it can avoid
# re-notifying on exceptions and when errors
# do occur, it can at least try to write to
# sys.stderr using a fallback logger
fallback_handler = QuietStreamHandler(sys.stderr)
fallback_handler.setFormatter(logging.Formatter(FALL_FORMAT))
def handleError(self, record):
try:
fallback_handler.handle(record)
fallback_handler.flush()
except IOError:
pass
setattr(logging.Handler, 'handleError', handleError)
def patch():
imp.acquire_lock()
try:
_patch_logging()
finally:
imp.release_lock()
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