Etcd config mistake

[luanngominh]

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

[collabnix]

Cc: @apurvabhandari

[mohan08p]

@collabnix @apurvabhandari : I would like to take this. Can test and contribute.