python logging通过json文件配置的步骤

{
 "version":1,
 "disable_existing_loggers":false,
 "formatters":{
 "simple":{
  "format":"[%(asctime)s - %(levelname)s - line(%(lineno)d) - %(filename)s]: %(message)s",
  "datefmt":"%Y-%m-%d %H:%M:%S"
 }
 },
 "handlers":{
 "console":{
  "class":"logging.StreamHandler",
  "level":"DEBUG",
  "formatter":"simple",
  "stream":"ext://sys.stdout"
 },
 "info_file_handler":{
  "class":"logging.handlers.TimedRotatingFileHandler",
  "level":"INFO",
  "formatter":"simple",
  "filename":"../log/info.log",
  "when":"H",
  "interval":1,
  "backupCount":50,
  "encoding":"utf8"
 },
 "error_file_handler":{
  "class":"logging.handlers.TimedRotatingFileHandler",
  "level":"ERROR",
  "formatter":"simple",
  "filename":"../log/errors.log",
  "when":"H",
  "interval":1,
  "backupCount":50,
  "encoding":"utf8"
 }
 },
 "loggers":{
 "my_module":{
  "level":"ERROR",
  "handlers":["info_file_handler"],
  "propagate":"no"
 }
 },
 "root":{
 "level":"INFO",
 "handlers":["console","info_file_handler","error_file_handler"]
 }
}

import os
import json
import logging
import logging.config


def setup_logging(default_path="logconfig.json",default_level=logging.DEBUG):
 path = default_path
 if os.path.exists(path):
 with open(path,"r") as f:
  config = json.load(f)
  logging.config.dictConfig(config)
 else:
 logging.basicConfig(level=default_level)

import logging
import logstash
import sys

host = 'localhost'

test_logger = logging.getLogger('python-logstash-logger')
test_logger.setLevel(logging.INFO)
test_logger.addHandler(logstash.LogstashHandler(host, 5959, version=1))
# test_logger.addHandler(logstash.TCPLogstashHandler(host, 5959, version=1))

test_logger.error('python-logstash: test logstash error message.')
test_logger.info('python-logstash: test logstash info message.')
test_logger.warning('python-logstash: test logstash warning message.')

# add extra field to logstash message
extra = {
 'test_string': 'python version: ' + repr(sys.version_info),
 'test_boolean': True,
 'test_dict': {'a': 1, 'b': 'c'},
 'test_float': 1.23,
 'test_integer': 123,
 'test_list': [1, 2, '3'],
}

test_logger.info('python-logstash: test extra fields', extra=extra)

import logging
import logstash

# AMQP parameters
host = 'localhost'
username = 'guest'
password= 'guest'
exchange = 'logstash.py'

# get a logger and set logging level
test_logger = logging.getLogger('python-logstash-logger')
test_logger.setLevel(logging.INFO)

# add the handler
test_logger.addHandler(logstash.AMQPLogstashHandler(version=1,
       host=host,
       durable=True,
       username=username,
       password=password,
       exchange=exchange))

# log
test_logger.error('python-logstash: test logstash error message.')
test_logger.info('python-logstash: test logstash info message.')
test_logger.warning('python-logstash: test logstash warning message.')

try:
 1/0
except:
 test_logger.exception('python-logstash: test logstash exception with stack trace')

{
 "@source"=>"unknown",
 "@type"=>"nginx",
 "@tags"=>[],
 "@fields"=>{
 "remote_addr"=>"192.168.0.1",
 "remote_user"=>"-",
 "body_bytes_sent"=>"13988",
 "request_time"=>"0.122",
 "status"=>"200",
 "request"=>"GET /some/url HTTP/1.1",
 "request_method"=>"GET",
 "http_referrer"=>"http://www.example.org/some/url",
 "http_user_agent"=>"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.79 Safari/537.1"
 },
 "@timestamp"=>"2012-08-23T10:49:14+02:00"
}