Book Image

Kubernetes for Serverless Applications

By : Russ McKendrick

Book Image

Kubernetes for Serverless Applications

By: Russ McKendrick

Overview of this book

Kubernetes has established itself as the standard platform for container management, orchestration, and deployment. It has been adopted by companies such as Google, its original developers, and Microsoft as an integral part of their public cloud platforms, so that you can develop for Kubernetes and not worry about being locked into a single vendor. This book will initially start by introducing serverless functions. Then you will configure tools such as Minikube to run Kubernetes. Once you are up-and-running, you will install and configure Kubeless, your first step towards running Function as a Service (FaaS) on Kubernetes. Then you will gradually move towards running Fission, a framework used for managing serverless functions on Kubernetes environments. Towards the end of the book, you will also work with Kubernetes functions on public and private clouds. By the end of this book, we will have mastered using Function as a Service on Kubernetes environments.

Preface

Who this book is for

What this book covers

To get the most out of this book

Free Chapter

The Serverless Landscape

The Serverless Landscape

Serverless and Functions as a Service

Public cloud offerings

The serverless toolkit

Problems solved by serverless and Functions as a Service

An Introduction to Kubernetes

An Introduction to Kubernetes

A brief history of Kubernetes

An overview of Kubernetes

Kubernetes use cases

Installing Kubernetes Locally

Installing Kubernetes Locally

Installing Minikube

Minikube commands

Introducing Kubeless Functioning

Introducing Kubeless Functioning

Installing Kubeless

Kubeless overview

Twitter example

The Kubeless serverless plugin

Using Funktion for Serverless Applications

Using Funktion for Serverless Applications

Introducing Funktion

Installing and configuring Funktion

Deploying a simple function

Twitter streams

Installing Kubernetes in the Cloud

Installing Kubernetes in the Cloud

Launching Kubernetes in DigitalOcean

Launching Kubernetes in AWS

Launching Kubernetes in Microsoft Azure

Launching Kubernetes on the Google Cloud Platform

Apache OpenWhisk and Kubernetes

Apache OpenWhisk and Kubernetes

Apache OpenWhisk overview

Running Apache OpenWhisk locally

Running Apache OpenWhisk on Kubernetes

Launching Applications Using Fission

Launching Applications Using Fission

Fission overview

Installing the prerequisites

Running Fission locally

Fission commands

Running Fission in the cloud

Some more examples

Looking at OpenFaaS

Looking at OpenFaaS

An introduction to OpenFaaS

Running OpenFaaS locally

Serverless Considerations

Serverless Considerations

Security best practices

Monitoring Kubernetes

Running Serverless Workloads

Running Serverless Workloads

Evolving software and platforms

Why Functions as a Service on Kubernetes

Other Books You May Enjoy

Other Books You May Enjoy

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The Kubeless serverless plugin

Back in Chapter 1, The Serverless Landscape, we installed the Serverless framework to deploy an AWS Lambda function; serverless also works with Kubeless.

If you didn't install serverless yet, here is a quick recap on how to install it on the three operating systems we are covering.

While every effort has been made to ensure that the following instructions work on all supported platforms there has been varying degrees of success of running the Kubeless serverless plugin on Windows-based operating systems due to compatibility issues with some of the dependencies required by the plugin.

For macOS 10.13 High Sierra, run the following command to install Node.js using Homebrew:

$ brew install node

If you are following along using Windows 10 Professional then you can install Node.js using Chocolatey by running:

$ choco install nodejs

Finally, if you...