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.
Table of Contents (13 chapters)

Some more examples

Before we finish off the chapter, let's look at some more example code running in Fission, starting with a weather checker.


In the /Chapter08/weather/ folder of the repository, you will find weather.js. This is a simple Node.js function that queries the Yahoo weather API to return the current weather for a given location:

'use strict';

const rp = require('request-promise-native');

module.exports = async function (context) {
const stringBody = JSON.stringify(context.request.body);
const body = JSON.parse(stringBody);
const location = body.location;

if (!location) {
return {
status: 400,
body: {
text: 'You must provide...