Container-volumes behavior on Kubernetes


What is the expected behavior if we set the “container-volumes” option for an app without a persistant volume in Kubernetes?

Ex: container-volumes: [ “/home/shinyproxy/userfiles/#{proxy.userId}:/home/#{proxy.userId}”]

It works if ShinyProxy runs in a server with docker engine. But it is also working in Kubernetes without a volume claim. I’m trying to understand what is going on.