Access to Kubernetes-mounted File System is Denied
When a non-root user tries to write to File Storage directories, they receive a "permission denied" error.
Symptom:
A Kubernetes pod cannot write to the File Storage file system after it was mounted using volumeMounts. Updating pod security settings using securityContext, runAsUser, and fsGroup does not resolve the issue.
Cause:
The Kubernetes pod mounted the File Storage file system as the "root" user with root permissions. This restricts non-root users from writing to the file system and causes a permissions error.
Solution:
Use initContainers to mount the file system and run chown to change ownership so that pod members can write to the file system. For more information, see Configure Pod Initialization.