bddc7b19c7
Updates to the stable/grizzly version since "openstack.common.setup" has been replaced with "pbr" in later versions and this will require the conversion of setup.py before.
523 lines
18 KiB
Python
523 lines
18 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack Foundation.
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Openstack logging handler.
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This module adds to logging functionality by adding the option to specify
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a context object when calling the various log methods. If the context object
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is not specified, default formatting is used. Additionally, an instance uuid
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may be passed as part of the log message, which is intended to make it easier
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for admins to find messages related to a specific instance.
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It also allows setting of formatting information through conf.
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"""
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import cStringIO
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import inspect
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import itertools
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import logging
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import logging.config
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import logging.handlers
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import os
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import stat
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import sys
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import traceback
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from oslo.config import cfg
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from cloudbaseinit.openstack.common.gettextutils import _
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from cloudbaseinit.openstack.common import jsonutils
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from cloudbaseinit.openstack.common import local
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from cloudbaseinit.openstack.common import notifier
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_DEFAULT_LOG_FORMAT = "%(asctime)s %(levelname)8s [%(name)s] %(message)s"
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_DEFAULT_LOG_DATE_FORMAT = "%Y-%m-%d %H:%M:%S"
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common_cli_opts = [
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cfg.BoolOpt('debug',
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short='d',
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default=False,
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help='Print debugging output (set logging level to '
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'DEBUG instead of default WARNING level).'),
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cfg.BoolOpt('verbose',
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short='v',
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default=False,
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help='Print more verbose output (set logging level to '
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'INFO instead of default WARNING level).'),
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]
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logging_cli_opts = [
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cfg.StrOpt('log-config',
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metavar='PATH',
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help='If this option is specified, the logging configuration '
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'file specified is used and overrides any other logging '
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'options specified. Please see the Python logging module '
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'documentation for details on logging configuration '
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'files.'),
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cfg.StrOpt('log-format',
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default=_DEFAULT_LOG_FORMAT,
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metavar='FORMAT',
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help='A logging.Formatter log message format string which may '
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'use any of the available logging.LogRecord attributes. '
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'Default: %(default)s'),
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cfg.StrOpt('log-date-format',
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default=_DEFAULT_LOG_DATE_FORMAT,
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metavar='DATE_FORMAT',
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help='Format string for %%(asctime)s in log records. '
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'Default: %(default)s'),
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cfg.StrOpt('log-file',
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metavar='PATH',
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deprecated_name='logfile',
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help='(Optional) Name of log file to output to. '
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'If not set, logging will go to stdout.'),
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cfg.StrOpt('log-dir',
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deprecated_name='logdir',
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help='(Optional) The directory to keep log files in '
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'(will be prepended to --log-file)'),
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cfg.BoolOpt('use-syslog',
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default=False,
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help='Use syslog for logging.'),
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cfg.StrOpt('syslog-log-facility',
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default='LOG_USER',
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help='syslog facility to receive log lines')
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]
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generic_log_opts = [
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cfg.BoolOpt('use_stderr',
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default=True,
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help='Log output to standard error'),
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cfg.StrOpt('logfile_mode',
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default='0644',
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help='Default file mode used when creating log files'),
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]
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log_opts = [
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cfg.StrOpt('logging_context_format_string',
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default='%(asctime)s.%(msecs)03d %(levelname)s %(name)s '
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'[%(request_id)s %(user)s %(tenant)s] %(instance)s'
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'%(message)s',
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help='format string to use for log messages with context'),
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cfg.StrOpt('logging_default_format_string',
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default='%(asctime)s.%(msecs)03d %(process)d %(levelname)s '
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'%(name)s [-] %(instance)s%(message)s',
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help='format string to use for log messages without context'),
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cfg.StrOpt('logging_debug_format_suffix',
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default='%(funcName)s %(pathname)s:%(lineno)d',
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help='data to append to log format when level is DEBUG'),
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cfg.StrOpt('logging_exception_prefix',
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default='%(asctime)s.%(msecs)03d %(process)d TRACE %(name)s '
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'%(instance)s',
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help='prefix each line of exception output with this format'),
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cfg.ListOpt('default_log_levels',
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default=[
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'amqplib=WARN',
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'sqlalchemy=WARN',
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'boto=WARN',
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'suds=INFO',
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'keystone=INFO',
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'eventlet.wsgi.server=WARN'
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],
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help='list of logger=LEVEL pairs'),
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cfg.BoolOpt('publish_errors',
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default=False,
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help='publish error events'),
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cfg.BoolOpt('fatal_deprecations',
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default=False,
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help='make deprecations fatal'),
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# NOTE(mikal): there are two options here because sometimes we are handed
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# a full instance (and could include more information), and other times we
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# are just handed a UUID for the instance.
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cfg.StrOpt('instance_format',
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default='[instance: %(uuid)s] ',
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help='If an instance is passed with the log message, format '
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'it like this'),
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cfg.StrOpt('instance_uuid_format',
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default='[instance: %(uuid)s] ',
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help='If an instance UUID is passed with the log message, '
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'format it like this'),
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]
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CONF = cfg.CONF
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CONF.register_cli_opts(common_cli_opts)
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CONF.register_cli_opts(logging_cli_opts)
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CONF.register_opts(generic_log_opts)
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CONF.register_opts(log_opts)
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# our new audit level
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# NOTE(jkoelker) Since we synthesized an audit level, make the logging
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# module aware of it so it acts like other levels.
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logging.AUDIT = logging.INFO + 1
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logging.addLevelName(logging.AUDIT, 'AUDIT')
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try:
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NullHandler = logging.NullHandler
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except AttributeError: # NOTE(jkoelker) NullHandler added in Python 2.7
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class NullHandler(logging.Handler):
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def handle(self, record):
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pass
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def emit(self, record):
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pass
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def createLock(self):
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self.lock = None
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def _dictify_context(context):
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if context is None:
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return None
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if not isinstance(context, dict) and getattr(context, 'to_dict', None):
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context = context.to_dict()
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return context
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def _get_binary_name():
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return os.path.basename(inspect.stack()[-1][1])
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def _get_log_file_path(binary=None):
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logfile = CONF.log_file
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logdir = CONF.log_dir
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if logfile and not logdir:
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return logfile
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if logfile and logdir:
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return os.path.join(logdir, logfile)
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if logdir:
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binary = binary or _get_binary_name()
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return '%s.log' % (os.path.join(logdir, binary),)
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class ContextAdapter(logging.LoggerAdapter):
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warn = logging.LoggerAdapter.warning
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def __init__(self, logger, project_name, version_string):
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self.logger = logger
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self.project = project_name
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self.version = version_string
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def audit(self, msg, *args, **kwargs):
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self.log(logging.AUDIT, msg, *args, **kwargs)
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def deprecated(self, msg, *args, **kwargs):
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stdmsg = _("Deprecated: %s") % msg
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if CONF.fatal_deprecations:
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self.critical(stdmsg, *args, **kwargs)
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raise DeprecatedConfig(msg=stdmsg)
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else:
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self.warn(stdmsg, *args, **kwargs)
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def process(self, msg, kwargs):
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if 'extra' not in kwargs:
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kwargs['extra'] = {}
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extra = kwargs['extra']
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context = kwargs.pop('context', None)
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if not context:
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context = getattr(local.store, 'context', None)
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if context:
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extra.update(_dictify_context(context))
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instance = kwargs.pop('instance', None)
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instance_extra = ''
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if instance:
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instance_extra = CONF.instance_format % instance
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else:
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instance_uuid = kwargs.pop('instance_uuid', None)
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if instance_uuid:
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instance_extra = (CONF.instance_uuid_format
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% {'uuid': instance_uuid})
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extra.update({'instance': instance_extra})
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extra.update({"project": self.project})
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extra.update({"version": self.version})
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extra['extra'] = extra.copy()
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return msg, kwargs
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class JSONFormatter(logging.Formatter):
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def __init__(self, fmt=None, datefmt=None):
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# NOTE(jkoelker) we ignore the fmt argument, but its still there
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# since logging.config.fileConfig passes it.
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self.datefmt = datefmt
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def formatException(self, ei, strip_newlines=True):
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lines = traceback.format_exception(*ei)
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if strip_newlines:
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lines = [itertools.ifilter(
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lambda x: x,
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line.rstrip().splitlines()) for line in lines]
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lines = list(itertools.chain(*lines))
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return lines
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def format(self, record):
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message = {'message': record.getMessage(),
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'asctime': self.formatTime(record, self.datefmt),
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'name': record.name,
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'msg': record.msg,
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'args': record.args,
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'levelname': record.levelname,
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'levelno': record.levelno,
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'pathname': record.pathname,
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'filename': record.filename,
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'module': record.module,
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'lineno': record.lineno,
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'funcname': record.funcName,
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'created': record.created,
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'msecs': record.msecs,
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'relative_created': record.relativeCreated,
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'thread': record.thread,
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'thread_name': record.threadName,
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'process_name': record.processName,
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'process': record.process,
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'traceback': None}
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if hasattr(record, 'extra'):
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message['extra'] = record.extra
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if record.exc_info:
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message['traceback'] = self.formatException(record.exc_info)
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return jsonutils.dumps(message)
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class PublishErrorsHandler(logging.Handler):
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def emit(self, record):
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if ('cloudbaseinit.openstack.common.notifier.log_notifier' in
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CONF.notification_driver):
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return
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notifier.api.notify(None, 'error.publisher',
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'error_notification',
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notifier.api.ERROR,
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dict(error=record.msg))
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def _create_logging_excepthook(product_name):
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def logging_excepthook(type, value, tb):
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extra = {}
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if CONF.verbose:
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extra['exc_info'] = (type, value, tb)
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getLogger(product_name).critical(str(value), **extra)
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return logging_excepthook
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def setup(product_name):
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"""Setup logging."""
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if CONF.log_config:
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logging.config.fileConfig(CONF.log_config)
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else:
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_setup_logging_from_conf()
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sys.excepthook = _create_logging_excepthook(product_name)
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def set_defaults(logging_context_format_string):
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cfg.set_defaults(log_opts,
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logging_context_format_string=
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logging_context_format_string)
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def _find_facility_from_conf():
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facility_names = logging.handlers.SysLogHandler.facility_names
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facility = getattr(logging.handlers.SysLogHandler,
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CONF.syslog_log_facility,
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None)
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if facility is None and CONF.syslog_log_facility in facility_names:
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facility = facility_names.get(CONF.syslog_log_facility)
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if facility is None:
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valid_facilities = facility_names.keys()
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consts = ['LOG_AUTH', 'LOG_AUTHPRIV', 'LOG_CRON', 'LOG_DAEMON',
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'LOG_FTP', 'LOG_KERN', 'LOG_LPR', 'LOG_MAIL', 'LOG_NEWS',
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'LOG_AUTH', 'LOG_SYSLOG', 'LOG_USER', 'LOG_UUCP',
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'LOG_LOCAL0', 'LOG_LOCAL1', 'LOG_LOCAL2', 'LOG_LOCAL3',
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'LOG_LOCAL4', 'LOG_LOCAL5', 'LOG_LOCAL6', 'LOG_LOCAL7']
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valid_facilities.extend(consts)
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raise TypeError(_('syslog facility must be one of: %s') %
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', '.join("'%s'" % fac
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for fac in valid_facilities))
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return facility
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def _setup_logging_from_conf():
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log_root = getLogger(None).logger
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for handler in log_root.handlers:
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log_root.removeHandler(handler)
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if CONF.use_syslog:
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facility = _find_facility_from_conf()
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syslog = logging.handlers.SysLogHandler(address='/dev/log',
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facility=facility)
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log_root.addHandler(syslog)
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logpath = _get_log_file_path()
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if logpath:
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filelog = logging.handlers.WatchedFileHandler(logpath)
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log_root.addHandler(filelog)
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mode = int(CONF.logfile_mode, 8)
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st = os.stat(logpath)
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if st.st_mode != (stat.S_IFREG | mode):
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os.chmod(logpath, mode)
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if CONF.use_stderr:
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streamlog = ColorHandler()
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log_root.addHandler(streamlog)
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elif not CONF.log_file:
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# pass sys.stdout as a positional argument
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# python2.6 calls the argument strm, in 2.7 it's stream
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streamlog = logging.StreamHandler(sys.stdout)
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log_root.addHandler(streamlog)
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if CONF.publish_errors:
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log_root.addHandler(PublishErrorsHandler(logging.ERROR))
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for handler in log_root.handlers:
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datefmt = CONF.log_date_format
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if CONF.log_format:
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handler.setFormatter(logging.Formatter(fmt=CONF.log_format,
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datefmt=datefmt))
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else:
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handler.setFormatter(LegacyFormatter(datefmt=datefmt))
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if CONF.debug:
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log_root.setLevel(logging.DEBUG)
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elif CONF.verbose:
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log_root.setLevel(logging.INFO)
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else:
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log_root.setLevel(logging.WARNING)
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level = logging.NOTSET
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for pair in CONF.default_log_levels:
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mod, _sep, level_name = pair.partition('=')
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level = logging.getLevelName(level_name)
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logger = logging.getLogger(mod)
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logger.setLevel(level)
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for handler in log_root.handlers:
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logger.addHandler(handler)
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_loggers = {}
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def getLogger(name='unknown', version='unknown'):
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if name not in _loggers:
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_loggers[name] = ContextAdapter(logging.getLogger(name),
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name,
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version)
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return _loggers[name]
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class WritableLogger(object):
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"""A thin wrapper that responds to `write` and logs."""
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def __init__(self, logger, level=logging.INFO):
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self.logger = logger
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self.level = level
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def write(self, msg):
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self.logger.log(self.level, msg)
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class LegacyFormatter(logging.Formatter):
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"""A context.RequestContext aware formatter configured through flags.
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The flags used to set format strings are: logging_context_format_string
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and logging_default_format_string. You can also specify
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logging_debug_format_suffix to append extra formatting if the log level is
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debug.
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For information about what variables are available for the formatter see:
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http://docs.python.org/library/logging.html#formatter
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"""
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def format(self, record):
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"""Uses contextstring if request_id is set, otherwise default."""
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# NOTE(sdague): default the fancier formating params
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# to an empty string so we don't throw an exception if
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# they get used
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for key in ('instance', 'color'):
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if key not in record.__dict__:
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record.__dict__[key] = ''
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if record.__dict__.get('request_id', None):
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self._fmt = CONF.logging_context_format_string
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else:
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self._fmt = CONF.logging_default_format_string
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if (record.levelno == logging.DEBUG and
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CONF.logging_debug_format_suffix):
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self._fmt += " " + CONF.logging_debug_format_suffix
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# Cache this on the record, Logger will respect our formated copy
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if record.exc_info:
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record.exc_text = self.formatException(record.exc_info, record)
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return logging.Formatter.format(self, record)
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def formatException(self, exc_info, record=None):
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"""Format exception output with CONF.logging_exception_prefix."""
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if not record:
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return logging.Formatter.formatException(self, exc_info)
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stringbuffer = cStringIO.StringIO()
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traceback.print_exception(exc_info[0], exc_info[1], exc_info[2],
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None, stringbuffer)
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lines = stringbuffer.getvalue().split('\n')
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stringbuffer.close()
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if CONF.logging_exception_prefix.find('%(asctime)') != -1:
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record.asctime = self.formatTime(record, self.datefmt)
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formatted_lines = []
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for line in lines:
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pl = CONF.logging_exception_prefix % record.__dict__
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fl = '%s%s' % (pl, line)
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formatted_lines.append(fl)
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return '\n'.join(formatted_lines)
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class ColorHandler(logging.StreamHandler):
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LEVEL_COLORS = {
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logging.DEBUG: '\033[00;32m', # GREEN
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logging.INFO: '\033[00;36m', # CYAN
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logging.AUDIT: '\033[01;36m', # BOLD CYAN
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logging.WARN: '\033[01;33m', # BOLD YELLOW
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logging.ERROR: '\033[01;31m', # BOLD RED
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logging.CRITICAL: '\033[01;31m', # BOLD RED
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}
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|
def format(self, record):
|
|
record.color = self.LEVEL_COLORS[record.levelno]
|
|
return logging.StreamHandler.format(self, record)
|
|
|
|
|
|
class DeprecatedConfig(Exception):
|
|
message = _("Fatal call to deprecated config: %(msg)s")
|
|
|
|
def __init__(self, msg):
|
|
super(Exception, self).__init__(self.message % dict(msg=msg))
|