A quote from reference [1] states that, "To add permissions to users or groups from vCenter Single Sign-On identity sources, the Tanzu Kubernetes cluster administrator can use either the vSphere Client or kubectl." Another quote from reference [1] states that, "By default, a Tanzu Kubernetes cluster includes a set of predefined roles that provides granular permission control for Kubernetes objects. The predefined roles enable cluster groups to be created with specific permissions across the Kubernetes namespace hierarchy. Administrators can also create custom roles to provide more granular permission control that is specific to their organization's requirements."