NetApp Trident (CSI) deployment not working

[thogaw]

RancherOS Version: v1.5.6

Where are you running RancherOS: baremetal

Hi, we are trying to deploy NetApp Trident into an RKE-Cluster on RancherOS. The CSI-Driver is not able to mount shared volumes.

Error Messages:

Warning  FailedMount  5m1s                 kubelet            Unable to attach or mount volumes: unmounted volumes=[registration-dir], unattached volumes=[plugin-dir host-dir certs sys-dir pods-mount-dir trident-csi-token-cdxfn registration-dir plugins-mount-dir dev-dir trident-tracking-dir]: timed out waiting for the condition

It seems that we need to set MountFlags of the User-Docker to "shared" but its not documented how to do this in RancherOS.

So how to set the MountFlags of the User-Docker?