Summary

In this chapter, we learned that admission controllers provide a way to enforce the mutation and validation of objects during create, update, and delete operations. It is an easy way to extend the Kubernetes platform to adhere to the standards of your organization. They can be used to apply the best practices and policies onto the Kubernetes cluster.

Next, we learned what mutating and validating webhooks are, how to configure them, and how to deploy them on the Kubernetes platform. Webhooks provide a simple way to extend Kubernetes and help you to adapt to the requirements of a particular enterprise.

In the previous series of chapters, starting from Chapter 11, Build Your Own HA Cluster, to Chapter 15, Monitoring and Autoscaling in Kubernetes, you learned how to set up your highly-available cluster on AWS and run stateless, as well as stateful, applications. In the next few chapters, you will learn many advanced skills that will help you go beyond just running applications...