Book Image

Kubernetes on AWS

By : Ed Robinson
Book Image

Kubernetes on AWS

By: Ed Robinson

Overview of this book

Docker containers promise to radicalize the way developers and operations build, deploy, and manage applications running on the cloud. Kubernetes provides the orchestration tools you need to realize that promise in production. Kubernetes on AWS guides you in deploying a production-ready Kubernetes cluster on the AWS platform. You will then discover how to utilize the power of Kubernetes, which is one of the fastest growing platforms for production-based container orchestration, to manage and update your applications. Kubernetes is becoming the go-to choice for production-grade deployments of cloud-native applications. This book covers Kubernetes from first principles. You will start by learning about Kubernetes' powerful abstractions - Pods and Services - that make managing container deployments easy. This will be followed by a guided tour through setting up a production-ready Kubernetes cluster on AWS, while learning the techniques you need to successfully deploy and manage your own applications. By the end of the book, you will have gained plenty of hands-on experience with Kubernetes on Amazon Web Services. You will also have picked up some tips on deploying and managing applications, keeping your cluster and applications secure, and ensuring that your whole system is reliable and resilient to failure.
Table of Contents (12 chapters)

Demo time

Congratulations, if you have made it this far through the chapter! You should by now have a fully functional Kubernetes cluster that you can use to experiment with and explore Kubernetes more fully.

Let's demonstrate that the cluster we have built is working by deploying an application to our cluster, as follows:

kubectl apply -f
https://raw.githubusercontent.com/PacktPublishing/Kubernetes-on-AWS/master/chapter03/demo.yaml

This manifest deploys a simple web application and a service to expose the application to the internet using a load balancer. We can view the public DNS name of the load balancer by using the kubectl get service command, as follows:

> kubectl get svc demo -o wide  

Once you have the public address of the load balancer, you might need to wait for a few moments before the address starts to resolve. Visit the address in your browser; you should...