Exercise 4.1 2: Log into the etcd container and look at the options etcdctl provides (Error)

jperret

student@k8scp:~$ kubectl -n kube-system exec -it etcd-master -- sh
error: unable to upgrade connection: pod does not exist

Running on GPC

jperret

Solution: **Reset your worker **
root@worker:~# kubeadm reset

Then join (worker) node see:
Exercise 3.2: Grow the Cluster steps 1 - 8.

student@k8scp:~$ kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8scp Ready control-plane,master 20m v1.21.1
worker Ready 11s v1.21.1

student@k8scp:~$ kubectl -n kube-system exec -it etcd-k8scp -- sh
sh-5.0#