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Hands-on Kubernetes on Azure, Third Edition

Hands-on Kubernetes on Azure, Third Edition - Third Edition

By : Nills Franssens, Gopalakrishnan, Lenz
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Hands-on Kubernetes on Azure, Third Edition

Hands-on Kubernetes on Azure, Third Edition

4.5 (2)
By: Nills Franssens, Gopalakrishnan, Lenz

Overview of this book

Containers and Kubernetes containers facilitate cloud deployments and application development by enabling efficient versioning with improved security and portability. With updated chapters on role-based access control, pod identity, storing secrets, and network security in AKS, this third edition begins by introducing you to containers, Kubernetes, and Azure Kubernetes Service (AKS), and guides you through deploying an AKS cluster in different ways. You will then delve into the specifics of Kubernetes by deploying a sample guestbook application on AKS and installing complex Kubernetes apps using Helm. With the help of real-world examples, you'll also get to grips with scaling your applications and clusters. As you advance, you'll learn how to overcome common challenges in AKS and secure your applications with HTTPS. You will also learn how to secure your clusters and applications in a dedicated section on security. In the final section, you’ll learn about advanced integrations, which give you the ability to create Azure databases and run serverless functions on AKS as well as the ability to integrate AKS with a continuous integration and continuous delivery (CI/CD) pipeline using GitHub Actions. By the end of this Kubernetes book, you will be proficient in deploying containerized workloads on Microsoft Azure with minimal management overhead.
Table of Contents (22 chapters)
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1
Foreword
Lock Free Chapter
2
Section 1: The Basics
5
Section 2: Deploying on AKS
11
Section 3: Securing your AKS cluster and workloads
16
Section 4: Integrating with Azure managed services
21
Index

5. Handling common failures in AKS

Kubernetes is a distributed system with many working parts. AKS abstracts most of it for you, but it is still your responsibility to know where to look and how to respond when bad things happen. Much of the failure handling is done automatically by Kubernetes; however, you will encounter situations where manual intervention is required.

There are two areas where things can go wrong in an application that is deployed on top of AKS. Either the cluster itself has issues, or the application deployed on top of the cluster has issues. This chapter focuses specifically on cluster issues. There are several things that can go wrong with a cluster.

The first thing that can go wrong is a node in the cluster can become unavailable. This can happen either due to an Azure infrastructure outage or due to an issue with the virtual machine itself, such as an operating system crash. Either way, Kubernetes monitors the cluster for node failures and will...

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Hands-on Kubernetes on Azure, Third Edition
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