Logstash: how to add file name as a field?

May 14, 2023 by Tarik

Hi I added a grok filter to do just this. I only wanted to have the filename not the path, but you can change this to your needs.

filter {
  grok {
    match => ["path","%{GREEDYDATA}/%{GREEDYDATA:filename}\.log"]
  }
}