elasticsearch - 如何使用 fluent-bit 解析/过滤嵌套的 json 属性？

Question

在一些流利的解析器和过滤器之后，我得到了以下 json：

{
   "date":1628534756.632903,
   "text":"2021-08-09 18:45:56.632 | INFO     | asgi:main:30 - {'version': '1', 'deploymentid': '73d37bf2-2af9-4f78-b7d5-92ccc0a41652', 'time': '2021-08-09T18:45:59.510822907Z'}\n",
   "record":{
      "elapsed":{
         "repr":"3 days, 0:53:36.716614",
         "seconds":262416.716614
      },
      "exception":null,
      "extra":{
         
      },
      "file":{
         "name":"asgi.py",
         "path":"/app/asgi.py"
      },
      "function":"main",
      "level":{
         "icon":"ℹ️",
         "name":"INFO",
         "no":20
      },
      "line":30,
      "message":"{'version': '1', 'deploymentid': '73d37bf2-2af9-4f78-b7d5-92ccc0a41652', 'time': '2021-08-09T18:45:59.510822907Z'}",
      "module":"asgi",
      "name":"asgi",
      "process":{
         "id":15,
         "name":"MainProcess"
      },
      "thread":{
         "id":140294663935808,
         "name":"MainThread"
      },
      "time":{
         "repr":"2021-08-09 18:45:56.632046+00:00",
         "timestamp":1628534756.632046
      }
   }
}

我想应用另一组解析器和/或过滤器以得到以下 json：

{
   "date":1628534756.632903,
   "message":"{'version': '1', 'deploymentid': '73d37bf2-2af9-4f78-b7d5-92ccc0a41652', 'time': '2021-08-09T18:45:59.510822907Z'}"
}

我的意思是，提升message一个级别并删除所有其他键，除了date.

我尝试使用一些过滤器grep，nest/lift但没有成功。

怎么可能做到？