can't log in the dashboard

[vilnitsky]

kubernetes is set with nginx controller + metallb LB

I have managed to setup openunison with okta
In okta I got a group called "k8s-admins" which is assigned upon authentication
Things look good so far, but for some reason I can't access the dashboard. I see the API endpoints return the error
MSG_LOGIN_UNAUTHORIZED_ERROR

I have also set the following rolebinding:

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: kubernetes-dashboard
subjects:

• kind: Group
  name: k8s-admins
  roleRef:
  kind: ClusterRole
  name: cluster-admin
  apiGroup: rbac.authorization.k8s.io

Can't figure out what's wrong. Could you please help?