I use kustomize to overwrite apiserver-hostpath0 with my local config from a k8 secret (my setup uses GCP volume-claims instead of leaving the files on the app=clearml node). When I overwrite apiserver-hostpath0 with an k8 secret with apiserver.conf that file is placed in /opt/clearml/config/apiserver.conf. But in this directory files are not used because the program runs in /opt/trains