log_format  json  '{"@timestamp":"$time_iso8601",'

                       '"@version":"1",'

                       '"client":"$remote_addr",'

                       '"url":"$uri",'

                       '"status":"$status",'

                       '"domain":"$host",'

                       '"host":"$server_addr",'

                       '"size":"$body_bytes_sent",'

                       '"responsentime":"$request_time",'

                       '"referer":"$http_referer",'

                       '"useragent":"$http_user_agent"'

                        '}';

 access_log  logs/access_json.log  json;

 input {

        file {

       path =>"/usr/local/nginx/logs/access_json.log"

       codec =>"json"

       start_position => "beginning"

         }

 }

 filter{

    json {

                 source => "message"

                 skip_on_invalid_json => true

                 }

 }

 output{

       elasticsearch {

        hosts =>["172.16.3.160:9200"]

        index => "logstash-zabbix-nginx-log-%{+YYYY.MM.dd}"

            }

 }