nginx，log_format 配置说明

1、log_format 普通格式

    log_format weblog '$remote_addr - $remote_user [$time_local] "$request" '
         '$status $body_bytes_sent "$http_referer" '
         '"$http_user_agent" [$http_x_forwarded_for] $request_length '
         '$request_time $host $request_body [$time_iso8601] '
         '$http_host $upstream_addr - $upstream_response_time '
         '"$request_uri" [$request_id]';

2、log_format JSON 格式

log_format logJson '{
  "@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" }
}';

3、使用指定日志格式

access_log /data/logs/nginx/access.log logJson buffer=32k;
access_log /data/logs/nginx/access.log weblog buffer=32k;

4、字段说明