Book Image

Building Enterprise JavaScript Applications

By : Daniel Li
Book Image

Building Enterprise JavaScript Applications

By: Daniel Li

Overview of this book

With the over-abundance of tools in the JavaScript ecosystem, it's easy to feel lost. Build tools, package managers, loaders, bundlers, linters, compilers, transpilers, typecheckers - how do you make sense of it all? In this book, we will build a simple API and React application from scratch. We begin by setting up our development environment using Git, yarn, Babel, and ESLint. Then, we will use Express, Elasticsearch and JSON Web Tokens (JWTs) to build a stateless API service. For the front-end, we will use React, Redux, and Webpack. A central theme in the book is maintaining code quality. As such, we will enforce a Test-Driven Development (TDD) process using Selenium, Cucumber, Mocha, Sinon, and Istanbul. As we progress through the book, the focus will shift towards automation and infrastructure. You will learn to work with Continuous Integration (CI) servers like Jenkins, deploying services inside Docker containers, and run them on Kubernetes. By following this book, you would gain the skills needed to build robust, production-ready applications.
Table of Contents (26 chapters)
Title Page
Copyright and Credits
Packt Upsell
Free Chapter
The Importance of Good Code

Deploying the backend API

We've deployed Elasticsearch, so let's carry on with the rest of the deployment—of our backend API and our frontend application.

The elasticsearch Docker image used in the deployment was available publicly. However, our backend API Docker image is not available anywhere, and thus our remote Kubernetes cluster won't be able to pull and deploy it.

Therefore, we need to build our Docker images and make it available on a Docker registry. If we don't mind our image being downloaded by others, we can publish it on a public registry like Docker Hub. If we want to control access to our image, we need to deploy it on a private registry.

For simplicity's sake, we will simply publish our images publicly on Docker Hub.

Publishing our image to Docker Hub

First, go to and create an account with Docker Hub. Make sure to verify your email.

Then, click on Create | create Repository at the top navigation. Give the repository a unique name and press Create. You can...