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

Multiple functions platforms

Functions platforms, such as Azure Functions, AWS Lambda, and Google Cloud Functions, have gained tremendously in popularity. The ability to run code without thinking about servers and having virtually limitless scale is very popular. The downside of using a cloud provider's functions implementation is that you are locked into their infrastructure and their programming model. Also, you can only run your functions in the public cloud and not in your own datacenter.

A number of open-source functions frameworks have been launched to solve these downsides. There are a number of popular frameworks:

  • Serverless (https://serverless.com/): A Node.js-based serverless application framework that can deploy and manage functions on multiple cloud providers, including Azure. Kubernetes support is provided via Kubeless.
  • OpenFaaS (https://www.openfaas.com/): OpenFaaS is a serverless framework that is Kubernetes-native. It can run on either managed Kubernetes...