Backdrop logstash format

gistfile1.json

{
   "@fields":{
      "relativeCreated":344.9680805206299,
      "process":12223,
      "args":[

      ],
      "module":"log_handler",
      "funcName":"set_up_logging",
      "message":"backdrop.read.api logging started",
      "name":"backdrop.read.api",
      "thread":140482203326208,
      "created":1392994954.851128,
      "threadName":"MainThread",
      "msecs":851.128101348877,
      "filename":"log_handler.py",
      "levelno":20,
      "processName":"MainProcess",
      "pathname":"/var/apps/backdrop/backdrop/core/log_handler.py",
      "lineno":32,
      "asctime":"2014-02-21 15:02:34,851",
      "levelname":"INFO"
   },
   "@timestamp":"2014-02-21T15:02:34.851432Z",
   "@source_host":"pp-development-1",
   "@message":"backdrop.read.api logging started",
   "@tags":[
      "application",
      "backdrop.read.api"
   ]
}