In the windows log collection and alert architecture of Promtail+loki+grafana+alertmanager, I need to extract message information to alertmanager alert. But I found that alertmanager does not support special symbols, so I have to filter special characters.
How can I filter out all characters except Chinese, English, and numbers in the following message information in promtail? Thank you
The known message sample information is as follows:
{"message": "录制文件 VDA = , SessionId = 1, CtxSessionId = 1db43c58-b74b-47c4-8950-3f987f407fb9, Path = E:\\REC\\SessionRecordings\\2024\\07\\28\\i_e8ea2b1a-e11c-46d3-97cb-9fcef83d43db.icl 时数据丢失
\n丢失 320024 字节。(使用 LRPC) 中的用户 NT SERVICE\\ksnproxy SID (S-1-5-80-3589385106-520469509-3569633472-84460881-2732306008)授予针对 CLSID 为
\n{D63B10C5-BB46-4990-A94F-E40B9D520160}
\n、APPID 为
\n{9CA88EE3-ACB7-47C8-AFC4-AB702511C276}
\n 的 COM 服务器应用程序的 本地 激活 权限。"}