Use Case

This feature would enable configuration of the message key used for structured logging, which currently defaults to slog.MessageKey (which is "msg".

A number of log ingestion pipelines rely on the key being "message".
It would be very helpful to be able to configure this value without having to rely on another tool, such as fluentbit, to transform the logs.

My current use case would benefit from not having to add this additional overhead, when it's arguably not necessary.

Expected behavior

This will allow a config option, structured_log_message_key, or similar, which when set to a different value, such as message (instead of the default msg), would produce structured logs in the following format:

{"time":"2024-11-27T22:31:08.995949Z","level":"INFO","message":"Loading config: telegraf.conf"}

Actual behavior

This functionality is currently not yet available, so the logs would continue to be produced as follows:

{"time":"2024-11-27T22:31:08.995949Z","level":"INFO","msg":"Loading config: telegraf.conf"}

Additional info

No response