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

Kubernetes as a container orchestration platform

Building and running a single container seems easy enough. However, things can get complicated when you need to run multiple containers across multiple servers. This is where a container orchestrator can help. A container orchestrator takes care of scheduling containers to be run on servers, restarting containers when they fail, moving containers to a new host when that host becomes unhealthy, and much more.

The current leading orchestration platform is Kubernetes (https://kubernetes.io/). Kubernetes was inspired by the Borg project in Google, which, by itself, was running millions of containers in production.

Kubernetes takes a declarative approach to orchestration; that is, you specify what you need and Kubernetes takes care of deploying the workload you specified. You don't need to start these containers manually yourself anymore, as Kubernetes will launch the Docker containers you specified.

Note

Although Kubernetes...