Summary

In an earlier chapter of this book, we explored how Kubernetes works favorably with a declarative approach to application management; that is, you define your desired state and let Kubernetes take care of the rest. Throughout this chapter, we took a look at some tools that help us manage our cloud infrastructure in a similar way. We introduced Terraform as a tool that can help us manage the state of our infrastructure and introduced the idea of treating your infrastructure as code.

We then created a mostly secure, production-ready Kubernetes cluster using Terraform in Amazon EKS. We took a look at the Ingress object and learned about the major motivations for using it, as well as the various advantages that it provides. Then, we deployed two versions of an application on a highly available Kubernetes cluster and explored some concepts that allow us to improve at horizontally scaling stateful applications. This gave us a glimpse of the challenges that come with running stateful...