Kubernetes - setting custom permissions/file ownership per volume (and not per pod)

Question

Is there any way to set per-volume permissions/ownership in Kubernetes declaratively?

Usecase:

• a pod is composed of two containers, running as two dist

Answer 1

One solution is to use init-container to change permissions of mounted directories.

The init-container would need to mount both volumes (from both containers), and do the needed chown/chmod operations.

Drawbacks:

• extra container that needs to be aware of other containers' specific (ie. uid/gid)
• init container needs to run as root to perform chown