Logstash jenkins audit

gistfile1.txt

{
    "_index": "jenkins",
    "_type": "logs",
    "_id": "ogp1oxrmTC2KgDsdj7qQsg",
    "_score": 2.3156765,
    "_source": {
        "message": "Oct 7, 2013 2:45:48 PM job/<JOB_NAME>/ #6690 Started by timer",
        "@timestamp": "2013-10-07T12:45:49.390Z",
        "@version": "1",
        "type": "jenkins",
        "host": "<MY_HOST>",
        "path": "/tmp/hudson-audit-0.log",
        "tags": [
            "grepped",
            "grokked"
        ],
        "date": "Oct 7, 2013 2:45:48 PM",
        "job": "<JOB_NAME>",
        "rest": "#6690",
        "user": "timer"
    }
}