I took a look over the mentioned StackOverflow question you had and looks like you were trying to get a Kubernetes cluster setup on AWS. That is a bit of a complex process. I would recommend that you try out our Kubernetes product at DigitalOcean as it streamlines this entire process for you.

We provide a guided interface that allows you to get a new Kubernetes cluster setup in just a minute or two and we take care of all of the configuration and routing for you so that you can move on to using the cluster rather than spending a tremendous amount of time configuring it and getting it setup.

https://www.digitalocean.com/products/kubernetes/