You're reading from Mastering Elastic Kubernetes Service on AWS Deploy and manage EKS clusters to support cloud-native applications in AWS

Product type Paperback

Published in Jul 2023

Publisher Packt

ISBN-13 9781803231211

Length 448 pages

Edition 1st Edition

Languages

Python

Tools

AWS

Concepts

Cloud Computing

Authors (2):

Yang-Xin Cao

Malcolm Orr

View More author details

Table of Contents (28) Chapters

Preface

1. Part 1: Getting Started with Amazon EKS

2. Chapter 1: The Fundamentals of Kubernetes and Containers FREE CHAPTER

3. Chapter 2: Introducing Amazon EKS

4. Chapter 3: Building Your First EKS Cluster

5. Chapter 4: Running Your First Application on EKS

6. Chapter 5: Using Helm to Manage a Kubernetes Application

7. Part 2: Deep Dive into EKS

8. Chapter 6: Securing and Accessing Clusters on EKS

9. Chapter 7: Networking in EKS

10. Chapter 8: Managing Worker Nodes on EKS

11. Chapter 9: Advanced Networking with EKS

12. Chapter 10: Upgrading EKS Clusters

13. Part 3: Deploying an Application on EKS

14. Chapter 11: Building Applications and Pushing Them to Amazon ECR

15. Chapter 12: Deploying Pods with Amazon Storage

16. Chapter 13: Using IAM for Granting Access to Applications

17. Chapter 14: Setting Load Balancing for Applications on EKS

18. Chapter 15: Working with AWS Fargate

19. Chapter 16: Working with a Service Mesh

20. Part 4: Advanced EKS Service Mesh and Scaling

21. Chapter 17: EKS Observability

22. Chapter 18: Scaling Your EKS Cluster

23. Chapter 19: Developing on EKS

24. Part 5: Overcoming Common EKS Challenges

25. Chapter 20: Troubleshooting Common Issues

26. Index

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Launching a node with Amazon Linux

In this section, we will discuss what is needed to launch a single EC2 instance and connect it to a cluster. We will then build on this as we discuss managed node groups.

Prerequisites for launching a node with Amazon Linux

A worker node is simply an EC2 instance that is used by EKS to actually host the Pods deployed on the cluster. Any EC2 instance will need the following:

An Identity and Access Management (IAM) role that allows it to talk to the AWS API (EKS, EC2, and so on)
A security group that, at a minimum, allows communication to the EKS control plane
An operating system image that has the Kubernetes agents (kubelet, and so on) installed
An init/boot script to register with a specific EKS cluster

IAM role and permissions

Each worker node and EC2 instance requires an IAM role to be attached to it that allows communication with the AWS EKS API, Elastic Container Registry (ECR), and the EC2 API. There are three...