def mapPriority(self, level):
"""Map the priority level to a syslog level """
return self.levelMap.get(level, SysLogHandler.mapPriority(self, level))
class JsonLogFormatter(logging.Formatter):
"""
Log formatter that outputs machine-readable json.
Adapted from:
https://github.com/mozilla-services/python-dockerflow/blob/master/src/dockerflow/logging.py
https://github.com/DanHoerst/json-log-formatter/blob/master/json_log_formatter/__init__.py
"""
LOGGING_FORMAT_VERSION = "1"
def __init__(self,
fmt=None,
datefmt=None,
style="%",
logger_name="json_logger"):
parent_init = logging.Formatter.__init__
parent_init(self, format, datefmt, style)
self.logger_name = logger_name
self.hostname = socket.gethostname()
self.syslog_handler = SysLogHandler()
def format(self, record):
"""
Map from Python LogRecord attributes to JSON log format fields
* usage - logger.info('My message', extra={'something': 'sick. tight.'})
* from - https://docs.python.org/3/library/logging.html#logrecord-attributes
* to -
{
'message': 'My message',
'time': '2015-09-01T06:06:26.524448',
'something': 'sick. tight.'
}
"""
data = OrderedDict({
'logger':
record.name,
'level':
self.syslog_handler.mapPriority(record.levelname),
'time':
datetime.utcnow().isoformat(),
})
message = record.getMessage()
# Only include the 'msg' key if it has content and is not already a JSON blob.
if message and not message.startswith("{") and not message.endswith(
"}"):
data["msg"] = message
data.update({
'hostname': self.hostname,
})
if global_ctx.user:
data['user_id'] = global_ctx.user.pk
if global_ctx.remote_addr:
data['remote_addr'] = global_ctx.remote_addr
# Include any other custom attributes set on the record.
data.update({
attr_name: record.__dict__[attr_name]
for attr_name in record.__dict__ if attr_name not in BUILTIN_ATTRS
})
if global_ctx.trace_id:
data['trace_id'] = global_ctx.trace_id
if global_ctx.amzn_trace:
data['amzn_trace'] = global_ctx.amzn_trace
# If there is an error, format it for nice output.
if record.exc_info is not None:
data["error"] = repr(record.exc_info[1])
data["traceback"] = safer_format_traceback(*record.exc_info)
return json.dumps(data, cls=SafeJSONEncoder)
def mapPriority(self, level):
"""Map the priority level to a syslog level """
return self.levelMap.get(level, SysLogHandler.mapPriority(self, level))
class JsonLogFormatter(logging.Formatter):
"""
:obj:`logging.Formatter` that transforms the logging record into machine
readable JSON.
This was adapted from the following projects:
https://github.com/mozilla-services/python-dockerflow/blob/master/src/dockerflow/logging.py # noqa
https://github.com/DanHoerst/json-log-formatter/blob/master/json_log_formatter/__init__.py # noqa
Usage:
-----
>>> logger = logging.getLogger('greenbudget')
>>> logger.info("Some message", extra={"foo": "bar", "apple": "banana"})
>>> {
>>> "message": "Some message",
>>> "foo": "bar",
>>> "apple": "banana",
>>> }
"""
LOGGING_FORMAT_VERSION = "1"
def __init__(self,
fmt=None,
datefmt=None,
style="%",
logger_name="greenbudget"):
logging.Formatter.__init__(self, fmt, datefmt, style)
self.logger_name = logger_name
self.hostname = socket.gethostname()
self.syslog_handler = SysLogHandler()
def format(self, record):
data = OrderedDict({
'logger':
record.name,
'level':
self.syslog_handler.mapPriority(record.levelname),
'time':
datetime.utcnow().isoformat(),
})
# Only include the `msg` if it has content and is not already a JSON
# blob.
message = record.getMessage()
if (message and not message.startswith("{")
and not message.endswith("}")):
data["msg"] = message
data['hostname'] = self.hostname
if global_ctx.user:
data['user_id'] = global_ctx.user.pk
if global_ctx.remote_addr:
data['remote_addr'] = global_ctx.remote_addr
# Include any other custom attributes set on the record.
data.update({
attr_name: record.__dict__[attr_name]
for attr_name in record.__dict__ if attr_name not in BUILTIN_ATTRS
})
# If there is an error, let's format it for some nice output.
if record.exc_info is not None:
data["error"] = repr(record.exc_info[1])
data["traceback"] = safer_format_traceback(*record.exc_info)
return json.dumps(data, cls=SafeJSONEncoder)