log_format json '{"@timestamp":"$time_iso8601",' '"@version":"1",' '"xforwardedfor":"$http_x_forwarded_for",' '"url":"$uri",' '"status":"$status",' '"domain":"$host",' '"host":"$server_addr",' '"size":"$body_bytes_sent",' '"responsentime":"$request_time",' '"referer":"$http_referer",' '"useragent":"$http_user_agent",' '"upstreampstatus":"$upstream_status",' '"upstreamaddr":"$upstream_addr",' '"upstreamresponsetime":"$upstream_response_time"' '}';

    #access_log  /usr/local/nginx/logs/access.log  main;
    access_log  /usr/local/nginx/logs/access.log  json;