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

Understanding the EKS architecture

Every EKS cluster will have a single endpoint URL used by tools such as kubectl, the main Kubernetes client. This URL hides all the control plane servers deployed on an AWS-managed VPC across multiple Availability Zones in the region you have selected to deploy the cluster to, and the servers that make up the control plane are not accessible to the cluster users or administrators.

The data plane is typically composed of EC2 workers that are deployed across multiple Availability Zones and have the kubelet and kube-proxy agents configured to point to the cluster endpoint. The following diagram illustrates the standard EKS architecture:

Figure 2.1 – High-level overview of EKS architecture

Figure 2.1 – High-level overview of EKS architecture

The next sections will look into how AWS configures and secures the EKS control plane along with specific commands you can use to interact with it.

Understanding the EKS control plane

When a new cluster is created, a new...