Etcd config mistake

Describe the bug Recently, I has read your post at http://dockerlabs.collabnix.com/kubernetes/beginners/Install-and-configure-a-multi-master-Kubernetes-cluster-with-kubeadm.html

I'm aware of having a mistake at etcd systemd config.

To Reproduce Only need change

--listen-peer-urls https://10.10.40.10:2380

to

--listen-peer-urls https://10.10.10.90:2380

A good day to you!

Screenshots