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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

Creating a queue-triggered function

In the previous section, you created a sample HTTP function. In this section, you'll build another sample using a queue-triggered function. Queues are often used to pass messages between different components of an application. A function can be triggered based on messages in a queue to then perform additional processing on these messages.

In this section, you'll create a function that is integrated with Azure storage queues to consume events. You will also configure KEDA to allow scaling to/from zero pods in the case of low traffic.

Let's start by creating a queue in Azure.

Creating a queue

In this section, you will create a new storage account and a new queue in that storage account. You will connect functions to that queue in the next section, Creating a queue-triggered function.

  1. To begin, create a new storage account. Search for storage accounts in the Azure search bar and select Storage accounts:
    Navigating to the storage account services through the Azure portal

    Figure...

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