Book Image

Hands-On Kubernetes on Azure - Second Edition

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

Hands-On Kubernetes on Azure - Second Edition

By: Nills Franssens, Shivakumar Gopalakrishnan, Gunther Lenz

Overview of this book

From managing versioning efficiently to improving security and portability, technologies such as Kubernetes and Docker have greatly helped cloud deployments and application development. Starting with an introduction to Docker, Kubernetes, and Azure Kubernetes Service (AKS), this book will guide you through deploying an AKS cluster in different ways. You’ll then explore the Azure portal 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 application and cluster. As you advance, you'll understand how to overcome common challenges in AKS and secure your application with HTTPS and Azure AD (Active Directory). Finally, you’ll explore serverless functions such as HTTP triggered Azure functions and queue triggered functions. By the end of this Kubernetes book, you’ll be well-versed with the fundamentals of Azure Kubernetes Service and be able to deploy containerized workloads on Microsoft Azure with minimal management overhead.
Table of Contents (16 chapters)
1
Section 1: The Basics
4
Section 2: Deploying on AKS
10
Section 3: Leveraging advanced Azure PaaS services
15
Index

Azure Kubernetes Service

Azure Kubernetes Service (AKS) makes creating and managing Kubernetes clusters easier.

A typical Kubernetes cluster consists of a number of master nodes and a number of worker nodes. A node within Kubernetes is equivalent to a virtual machine (VM). The master nodes contain the Kubernetes API and a database that contains the cluster state. The worker nodes are the VMs that run your actual workload.

AKS makes it a lot easier to create a cluster. When you create an AKS cluster, AKS sets up the Kubernetes master for you, free of charge. AKS will then create VMs in your subscription, and turn those VMs into worker nodes of your Kubernetes cluster in your network. You only pay for those VMs; you don't pay for the master.

Within AKS, Kubernetes Services are integrated with Azure Load Balancer and Kubernetes Ingresses are integrated with the application gateway. Azure Load Balancer is a layer-4 network load balancer Service; the application gateway is...