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 Monitor metrics and logs

Previously in this chapter, you explored the status and metrics of nodes and pods in your cluster using the kubectl command-line tool. In Azure, you can get more metrics from nodes and pods and explore the logs from pods in your cluster. Let's start by exploring AKS Insights in the Azure portal.

AKS Insights

The Insights section of the AKS pane provides most of the metrics you need to know about your cluster. It also has the ability to drill down to the container level. You can also see the logs of the container.

Note:

The Insights section of the AKS pane relies on Azure Monitor for containers. If you created the cluster using the portal defaults, this is enabled by default.

Kubernetes makes metrics available but doesn't store them. Azure Monitor can be used to store these metrics and make them available to query over time. To collect the relevant metrics and logs into Insights, Azure connects to the Kubernetes API to collect...