darthjee/rails_yarn repository overview

⁠darthjee/rails_yarn

⁠About the image

The darthjee/rails_yarn image is a Docker image built on top of darthjee/ruby_331⁠. It adds Node.js, npm and Yarn, pre-caches a set of front-end packages and pre-installs the gems commonly used by Ruby on Rails applications, providing a ready-to-use development environment for Rails applications with front-end asset compilation.

The image runs as the app user (uid 1000), with /home/app/app as the working directory, owned by app.

⁠What is added

On top of everything provided by darthjee/ruby_331, this image installs:

• Node.js – JavaScript runtime, installed from NodeSource.
• npm – Node package manager.
• Yarn – JavaScript package manager, installed globally via npm.
• ncat and telnet – networking utilities, useful for checking connectivity to other services.

⁠Pre-cached packages

The following packages are pre-cached in the global yarn cache (/usr/local/share/.cache/yarn/v6/). They are not installed into any node_modules; they are used when a project's package.json asks for them and yarn install is run.

• yarn
• underscore
• bootstrap
• jquery
• js-cookie

⁠Pre-installed gems

The following gems are pre-installed in the image, on top of the ones provided by darthjee/ruby_331:

⁠Core

• bundler
• rake
• darthjee-core_ext
• sinclair
• observer

⁠Rails

• rails
• rack
• puma
• sass-rails
• uglifier
• nokogiri
• turbolinks
• tzinfo-data

⁠Development and test

• pry
• pry-nav
• pry-rails
• simplecov
• simplecov-html
• simplecov-lcov
• yard
• yardstick
• zyra

⁠Development

• rubycritic
• reek
• rubocop
• rubocop-rspec
• rubocop-factory_bot
• rubocop-rails
• rubocop-rake
• rubocop-rspec_rails
• zonebie
• web-console

⁠Test

• factory_bot
• rails-controller-testing
• rspec
• rspec-collection_matchers
• rspec-core
• rspec-expectations
• rspec-mocks
• rspec-rails
• rspec-support
• shoulda-matchers
• timecop
• webmock

⁠How to use

Reference this image in your Dockerfile (see the available tags at https://hub.docker.com/r/darthjee/rails_yarn/tags⁠):

FROM darthjee/rails_yarn:<version>

Projects can then install their own specific gems and packages on top of the shared base, taking advantage of Docker layer caching to speed up builds and CI pipelines:

FROM darthjee/rails_yarn:<version>

COPY --chown=app:app Gemfile Gemfile.lock ./
RUN bundle install

COPY --chown=app:app package.json yarn.lock ./
RUN yarn install

⁠Variants

⁠License

See the LICENSE file for more information.