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

Creating our cluster

With the Kubernetes daemon (installed and ran by minikube) and the Kubernetes client (kubectl) installed, we can now run minikube start to create and start our cluster. We'd need to pass in --vm-driver=none as we are not using a VM.


If you are using a VM, remember to use the correct --vm-driver flag.

We need to run the minikube start command as root because the kubeadm and kubelet binaries need to be downloaded and moved to /usr/local/bin, which requires root privileges.

However, this usually means that all the files created and written during the installation and initiation process will be owned by root. This makes it hard for a normal user to modify configuration files.

Fortunately, Kubernetes provides several environment variables that we can set to change this.

Setting environment variables for the local cluster

Inside .profile (or its equivalents, such as .bash_profile or .bashrc), add the following lines at the end: