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

Using AKS Diagnostics

When you are experiencing issues in AKS, a good place to start your exploration is the AKS Diagnostics pane. It provides you with tools that help investigate any issues related to underlying infrastructure or system cluster components.

Note:

AKS Diagnostics is in preview at the time of writing this book. This means functionality might be added or removed.

To access AKS Diagnostics, hit the Diagnose and solve problems option in the AKS menu. This will open up Diagnostics, as shown in Figure 7.31:

An overview of the AKS Diagnostics pane in the Azure portal

Figure 7.31: Accessing AKS Diagnostics

AKS Diagnostics gives you two tools to diagnose and explore issues. One is Cluster Insights, and the other is Networking. Cluster Insights uses cluster logs and configuration on your cluster to perform a health check and compare your cluster against best practices. It contains useful information and relevant health indicators in case anything is misconfigured in your cluster. An example output...