Sending File Name to Log Line

Thank you for your response. Actually I can add filename as a label using promtail. In here, I need to see the file name within the log entry when I select just a job in Label filters. For an example,
This is my log line format.
01-06-2023 06:00:00.001 [Thread- 12] DEBUG ahjs sadfkjg - fgStats job ihgj

I want to see this as a out put on grafana loki.
01-06-2023 06:00:00.001 [Thread- 12] DEBUG ahjs sadfkjg - fgStats job ihgj log_file_name.log

Thanks