Linkerd provides a demo emojivoto application that can be used to explore the capabilities of Linkerd. This app is installed in the emojivoto namespace. We will grant the cluster_admin role to it, like so:
$ kubectl create clusterrolebinding emojivoto-cluster-role-binding \
--clusterrole=cluster-admin --group=system:serviceaccounts:emojivoto
clusterrolebinding.rbac.authorization.k8s.io/emojivoto-cluster-role-binding created
In the following subsection, we will install this demo emojivoto application.