Book Image

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

By : Nills Franssens, Shivakumar Gopalakrishnan, Gunther Lenz
Book Image

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

By: Nills Franssens, Shivakumar Gopalakrishnan, Gunther 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)
1
Foreword
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

Azure Service Operator

In this section, you will learn more about ASO. We will start by exploring the benefits of using a hosted database versus running StatefulSets on Kubernetes itself, and then learn more details about ASO.

All the examples that you have gone through so far have been self-contained; that is, everything ran inside the Kubernetes cluster. Almost any production application has a state, which is generally stored in a database. While there is a great advantage to being mostly cloud-agnostic, this has a huge disadvantage when it comes to managing a stateful workload such as a database.

When you are running your own database on top of a Kubernetes cluster, you need to take care of scalability, security, high availability, DR, and backup. Managed database services offered by cloud providers can offload you or your team from having to execute these tasks. For example, Azure Database for MySQL comes with enterprise-grade security and compliance, built-in high availability...