JavaScript and Webpacker

We are living in a JavaScript renaissance—no longer is it the whipping boy of language purists. Rails has embraced modern JavaScript technologies like React through its inclusion of Webpacker, a gem that brings webpack support.

As Rails developers, it is important to be able to incorporate these technologies into our apps as needed, so our Docker environment needs to support us in that endeavor.

We will explore the options for working with JavaScript as part of our Rails development. We will also see how to include a React front-end in our Rails app by installing and configuring Webpacker. By the end of this chapter, our Docker-based ...

Introduction

A Brave New World

Running a Rails App in a Container

Fine-Tuning Our Rails Image

Describing Our App Declaratively with Docker Compose

Beyond the App: Adding Redis

Docker for Rails Developer—Exam 1

Adding a Database: Postgres

Playing Nice with JavaScript

Testing in a Dockerized Environment

Advanced Gem Management

Some Minor Irritations

Docker for Rails Developer—Exam 2

The Production Landscape

Preparing for Production

A Production-Like Playground

Deploying to the Cloud

Docker for Rails Developer - Exam 3

Closing Thoughts and Next Steps

APPENDIX

Front-End Options

JavaScript and Webpacker