Access to —files in driver in spark on k8s

Hi, I’m running spark on k8s and would love to access files that are submitted with —files on the driver (not executor). I know files are uploaded to /tmp/spark-XXXX/ folder that is random, but I can’t find any environment variable that I can use in driver to access them. 

the reason I want this is to pass a config file in —files with some parameters , and I want to access this file before I initialize spark context.