Kubernetes-dasboard v2 auth


Ubuntu20 K8s 1.18.2 MultiMaster Kubernetes-Dashboard V2
I try to make limited user login. I made kubeconfig for access to one namespace. In shell it work well for regular user(access only to one namespace). But if I try open kubernetes-dashboard https:// (nodeporte access) Used this kubeconfig file (use base64 for certs) I get Internal error (500): Not enough data to create auth info structure. What to do? I could not find a clear example. RBAC is very confusing :frowning:
I had tried to use token authorization, but no example works with for kubernetes-dashboard version 2
I look forward to your help.