nginx中用JSON格式记录日志的配置示例

log_format logstash_json '{ '@timestamp': '$time_local', '
                         ''@fields': { '
                         ''remote_addr': '$remote_addr', '
                         ''remote_user': '$remote_user', '
                         ''body_bytes_sent': '$body_bytes_sent', '
                         ''request_time': '$request_time', '
                         ''status': '$status', '
                         ''request': '$request', '
                         ''request_method': '$request_method', '
                         ''http_referrer': '$http_referer', '
                         ''body_bytes_sent':'$body_bytes_sent', '
                         ''http_x_forwarded_for': '$http_x_forwarded_for', '
                         ''http_user_agent': '$http_user_agent' } }';