Context For testing purposes, the kubeadm provisioned cluster 's API server was configured to allow unauthenticated and unauthorized access. Task First, secure the cluster 's API server configuring it

Context For testing purposes, the kubeadm provisioned cluster 's API server was configured to allow unauthenticated and unauthorized access. Task First, secure the cluster 's API server configuring it as follows: . Forbid anonymous authentication . Use authorization mode Node,RBAC . Use admission controller NodeRestriction The cluster uses the Docker Engine as its container runtime . If needed, use the docker command to troubleshoot running containers. kubectl is configured to use unauthenticated and unauthorized access. You do not have to change it, but be aware that kubectl will stop working once you have secured the cluster . You can use the cluster 's original kubectl configuration file located at /etc/kubernetes/admin.conf to access the secured cluster.