# Licensed under the Apache License, Version 2.0 (the "License"); you may # not use this file except in compliance with the License. You may obtain # a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the # License for the specific language governing permissions and limitations # under the License. # """Application logging""" import logging import sys import warnings def get_loggers(): loggers = {} for logkey in logging.Logger.manager.loggerDict.keys(): loggers[logkey] = logging.getLevelName(logging.getLogger(logkey).level) return loggers def log_level_from_options(options): # if --debug, --quiet or --verbose is not specified, # the default logging level is warning log_level = logging.WARNING if options.verbose_level == 0: # --quiet log_level = logging.ERROR elif options.verbose_level == 2: # One --verbose log_level = logging.INFO elif options.verbose_level >= 3: # Two or more --verbose log_level = logging.DEBUG return log_level def log_level_from_string(level_string): log_level = { 'critical': logging.CRITICAL, 'error': logging.ERROR, 'warning': logging.WARNING, 'info': logging.INFO, 'debug': logging.DEBUG, }.get(level_string, logging.WARNING) return log_level def log_level_from_config(config): # Check the command line option verbose_level = config.get('verbose_level') if config.get('debug', False): verbose_level = 3 if verbose_level == 0: verbose_level = 'error' elif verbose_level == 1: # If a command line option has not been specified, check the # configuration file verbose_level = config.get('log_level', 'warning') elif verbose_level == 2: verbose_level = 'info' else: verbose_level = 'debug' return log_level_from_string(verbose_level) def set_warning_filter(log_level): if log_level == logging.ERROR: warnings.simplefilter("ignore") elif log_level == logging.WARNING: warnings.simplefilter("ignore") elif log_level == logging.INFO: warnings.simplefilter("once") class _FileFormatter(logging.Formatter): """Customize the logging format for logging handler""" _LOG_MESSAGE_BEGIN = ( '%(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s ' ) _LOG_MESSAGE_CONTEXT = '[%(cloud)s %(username)s %(project)s] ' _LOG_MESSAGE_END = '%(message)s' _LOG_DATE_FORMAT = '%Y-%m-%d %H:%M:%S' def __init__(self, options=None, config=None, **kwargs): context = {} if options: context = { 'cloud': getattr(options, 'cloud', ''), 'project': getattr(options, 'os_project_name', ''), 'username': getattr(options, 'username', ''), } elif config: context = { 'cloud': config.config.get('cloud', ''), 'project': config.auth.get('project_name', ''), 'username': config.auth.get('username', ''), } if context: self.fmt = ( self._LOG_MESSAGE_BEGIN + (self._LOG_MESSAGE_CONTEXT % context) + self._LOG_MESSAGE_END ) else: self.fmt = self._LOG_MESSAGE_BEGIN + self._LOG_MESSAGE_END logging.Formatter.__init__(self, self.fmt, self._LOG_DATE_FORMAT) class LogConfigurator(object): _CONSOLE_MESSAGE_FORMAT = '%(message)s' def __init__(self, options): self.root_logger = logging.getLogger('') self.root_logger.setLevel(logging.DEBUG) # Force verbose_level 3 on --debug self.dump_trace = False if options.debug: options.verbose_level = 3 self.dump_trace = True # Always send higher-level messages to the console via stderr self.console_logger = logging.StreamHandler(sys.stderr) log_level = log_level_from_options(options) self.console_logger.setLevel(log_level) formatter = logging.Formatter(self._CONSOLE_MESSAGE_FORMAT) self.console_logger.setFormatter(formatter) self.root_logger.addHandler(self.console_logger) # Set the warning filter now set_warning_filter(log_level) # Set up logging to a file self.file_logger = None log_file = options.log_file if log_file: self.file_logger = logging.FileHandler(filename=log_file) self.file_logger.setFormatter(_FileFormatter(options=options)) self.file_logger.setLevel(log_level) self.root_logger.addHandler(self.file_logger) # Requests logs some stuff at INFO that we don't want # unless we have DEBUG requests_log = logging.getLogger("requests") # Other modules we don't want DEBUG output for cliff_log = logging.getLogger('cliff') stevedore_log = logging.getLogger('stevedore') iso8601_log = logging.getLogger("iso8601") if options.debug: # --debug forces traceback requests_log.setLevel(logging.DEBUG) else: requests_log.setLevel(logging.ERROR) cliff_log.setLevel(logging.ERROR) stevedore_log.setLevel(logging.ERROR) iso8601_log.setLevel(logging.ERROR) def configure(self, cloud_config): log_level = log_level_from_config(cloud_config.config) set_warning_filter(log_level) self.dump_trace = cloud_config.config.get('debug', self.dump_trace) self.console_logger.setLevel(log_level) log_file = cloud_config.config.get('log_file') if log_file: if not self.file_logger: self.file_logger = logging.FileHandler(filename=log_file) self.file_logger.setFormatter(_FileFormatter(config=cloud_config)) self.file_logger.setLevel(log_level) self.root_logger.addHandler(self.file_logger) logconfig = cloud_config.config.get('logging') if logconfig: highest_level = logging.NOTSET for k in logconfig.keys(): level = log_level_from_string(logconfig[k]) logging.getLogger(k).setLevel(level) if highest_level < level: highest_level = level self.console_logger.setLevel(highest_level) if self.file_logger: self.file_logger.setLevel(highest_level) # loggers that are not set will use the handler level, so we # need to set the global level for all the loggers for logkey in logging.Logger.manager.loggerDict.keys(): logger = logging.getLogger(logkey) if logger.level == logging.NOTSET: logger.setLevel(log_level)