“kubectl exec” results in “error: unable to upgrade connection: Unauthorized”

Question

I tried kubectl exec on a k8s 1.6.4 RBAC-enabled cluster and the error returned was: error: unable to upgrade connection: Unauthorized. docke

Answer 1

Run across this one on my minikube cluster version 1.12.3
If you're running a minikube cluster, upgrade minikube and it'll be fixed.

check your minikube version:

$ minikube update-check
CurrentVersion: v1.12.3
LatestVersion: v1.13.0

Minikube docs
Upgrade(Mac OS):

brew upgrade minikube