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

Linking an identity to your cluster

In the previous section, you created a new cluster with Azure AD pod-managed identities enabled. Now you are ready to create a managed identity and link it to your cluster. Let's get started:

  1. To start, you will create a new managed identity using the Azure portal. In the Azure portal, look for managed identity in the search bar, as shown in Figure 9.5:
    Search for Managed identity in the Azure search bar

    Figure 9.5: Navigating to Managed Identities in the Azure portal

  2. In the resulting pane, click the + New button at the top. To organize the resources for this chapter together, it's recommended to create a new resource group. In the resulting pane, click the Create new button to create a new resource group. Call it aad-pod-id, as shown in Figure 9.6:
    Creating a new resource group called aad-pod-id

    Figure 9.6: Creating a new resource group

  3. Now, select the region you created your cluster in as the region for your managed identity and give it a name (aad-pod-id in this example), as shown in Figure 9.7. To finish, click the...