Book Image

Mastering Elastic Kubernetes Service on AWS

By : Malcolm Orr, Yang-Xin Cao (Eason)
5 (1)
Book Image

Mastering Elastic Kubernetes Service on AWS

5 (1)
By: Malcolm Orr, Yang-Xin Cao (Eason)

Overview of this book

Kubernetes has emerged as the de facto standard for container orchestration, with recent developments making it easy to deploy and handle a Kubernetes cluster. However, a few challenges such as networking, load balancing, monitoring, and security remain. To address these issues, Amazon EKS offers a managed Kubernetes service to improve the performance, scalability, reliability, and availability of AWS infrastructure and integrate with AWS networking and security services with ease. You’ll begin by exploring the fundamentals of Docker, Kubernetes, Amazon EKS, and its architecture along with different ways to set up EKS. Next, you’ll find out how to manage Amazon EKS, encompassing security, cluster authentication, networking, and cluster version upgrades. As you advance, you’ll discover best practices and learn to deploy applications on Amazon EKS through different use cases, including pushing images to ECR and setting up storage and load balancing. With the help of several actionable practices and scenarios, you’ll gain the know-how to resolve scaling and monitoring issues. Finally, you will overcome the challenges in EKS by developing the right skill set to troubleshoot common issues with the right logic. By the end of this Kubernetes book, you’ll be able to effectively manage your own Kubernetes clusters and other components on AWS.
Table of Contents (28 chapters)
1
Part 1: Getting Started with Amazon EKS
7
Part 2: Deep Dive into EKS
13
Part 3: Deploying an Application on EKS
20
Part 4: Advanced EKS Service Mesh and Scaling
24
Part 5: Overcoming Common EKS Challenges

Using IPv6 in your EKS cluster

IPv6 has some distinct advantages over IPv4, namely, it provides a much larger address space (this includes public IP addresses), reduces some latency by removing Network Address Translation (NAT) hops, and can simplify the overall routing network configuration. It does have some limitations (not only for EKS but other AWS services as well) so care must be taken when adopting IPv6. Please review https://aws.amazon.com/vpc/ipv6/ and https://docs.aws.amazon.com/eks/latest/userguide/cni-ipv6.html before implementing it in production.

IPv6 cannot currently be enabled on an existing cluster, so the first thing we need to do is create a new cluster with the IPv6 address family, which is at least running Kubernetes 1.21. We will use eksctl with the following configuration file, myipv6cluster.yaml:

---
apiVersion: eksctl.io/v1alpha5
kind: ClusterConfig
metadata:
  name: myipv6cluster
  region: "eu-central-1"
  version...