Logstash: how to use filter to match filename when using s3

Question

I am new to logstash. I have some logs stored in AWS S3 and I am able to import them to logstash. My question is: is it possible to use the grok filter to add tags based on

Answer 1

There is no "path" in S3 inputs. I mount the S3 storage on my server and use the file inputs. With file inputs, I can use the filter to match the path now.