使用filebeat，只需指定 log 输入usb磁盘卷的路径：

- type: log
  # Change to true to enable this input configuration.
  enabled: true
  # Paths that should be crawled and fetched. Glob based paths.
  paths:
   # On Mac
   - /Volumes/MY_USB_DISK/*.*
   # On Linux
   - /mnt/usb/*.*
   # On Windows (pick the right drive letter on which the USB disk is mounted)
   - F:\*.*
  fields:
    source: usb

然后你可以启动filebeat，一旦usb盘被插入，filebeat就会开始跟踪与上面路径匹配的所有文件，并将它们发送到es。