Book Image

Kubernetes in Production Best Practices

By : Aly Saleh, Murat Karslioglu
Book Image

Kubernetes in Production Best Practices

By: Aly Saleh, Murat Karslioglu

Overview of this book

Although out-of-the-box solutions can help you to get a cluster up and running quickly, running a Kubernetes cluster that is optimized for production workloads is a challenge, especially for users with basic or intermediate knowledge. With detailed coverage of cloud industry standards and best practices for achieving scalability, availability, operational excellence, and cost optimization, this Kubernetes book is a blueprint for managing applications and services in production. You'll discover the most common way to deploy and operate Kubernetes clusters, which is to use a public cloud-managed service from AWS, Azure, or Google Cloud Platform (GCP). This book explores Amazon Elastic Kubernetes Service (Amazon EKS), the AWS-managed version of Kubernetes, for working through practical exercises. As you get to grips with implementation details specific to AWS and EKS, you'll understand the design concepts, implementation best practices, and configuration applicable to other cloud-managed services. Throughout the book, you’ll also discover standard and cloud-agnostic tools, such as Terraform and Ansible, for provisioning and configuring infrastructure. By the end of this book, you’ll be able to leverage Kubernetes to operate and manage your production environments confidently.
Table of Contents (12 chapters)

Destroying the cluster's resources

First, you should delete the ingress-nginx service to instruct AWS to destroy the NLB associated with the ingress controller. This step is required because terraform will fail to destroy this NLB because it has been created by Kubernetes:

$ kubectl -n nginx-ingress delete svc nginx-ingress

Then, you can follow the rest of the instructions in the Destroying the network and cluster infrastructure section in Chapter 3, Building and Provisioning Kubernetes Clusters, to destroy the Kubernetes cluster and all related AWS resources. Please ensure that the resources are destroyed in the following order:

  1. Kubernetes cluster packtclusters resources
  2. Cluster VPC resources
  3. Terraform shared state resources

By executing the previous steps, all Kubernetes and AWS infrastructure resources should be destroyed and cleaned up ahead of the hands-on practice in the next chapter.