Kubernetes > Knative > RBAC info alert
If you create an RBAC enabled cluster you'll see the following informational alert when you have yet to install Tiller:
After you install Tiller and refresh the page, the banner is gone. However, you should not see the banner for RBAC enabled clusters, even before installing Tiller.
Solution
Remove this info alert from Knative if the cluster is RBAC enabled.