This is a template for building an app with Rails 5.1 + React in Docker.
You should have a reasonably recent version of Docker installed.
Once that's out of the way, clone this repo, navigate into the cloned directory, and run
docker-compose up
In anoher tab, visit http://localhost:3000 to see the Rails welcome page!
On the technical side, docker-compose up launched two containers: rails-app
and webpack-dev-server. The former runs the Rails app, while the latter
watches and compiles React files located in app/javascript/packs.
Application code is linked into containers with live reloading, so you can see changes you make locally right away!
You have full control over Rails code, apply the usual methods. Check the next
section for details on running commands like rake … and rails ….
To get you started with React quicker, this app comes preloaded with a simple
React app. Visiting http://localhost:3000/hello_react will load JavaScript code
located in app/javascript/packs/hello_react.jsx.
To run any bundle …, rails …, rake …, or yarn … commands, launch them
via rails-app service. For example, rails generate controller Welcome is
docker-compose run rails-app rails generate controller Welcome
Ruby/Rails and JavaScript dependencies are checked on container start. Any unmet dependencies will be installed automatically for the current container.
To add a Ruby/Rails dependency, modify Gemfile and (re-)start rails-app
service, docker-compose up or docker-compose restart rails-app.
To add a JavaScript dependency, use Yarn:
docker-compose run rails-app yarn add <package-name>
and restart webpack-dev-server service.
To add a system dependency, modify the Dockerfile.
Try docker-compose down, then docker-compose up. This should delete
existing images for this project and rebuild them from scratch.