README.md 2.9 KB

Supported tags and respective Dockerfile links

What is Ruby?

Ruby is a dynamic, reflective, object-oriented, general-purpose, open-source programming language. According to its authors, Ruby was influenced by Perl, Smalltalk, Eiffel, Ada, and Lisp. It supports multiple programming paradigms, including functional, object-oriented, and imperative. It also has a dynamic type system and automatic memory management.

wikipedia.org/wiki/Ruby_(programming_language)

How to use this image

Create a Dockerfile in your Ruby app project

FROM ruby:2.1.2-onbuild
CMD ["./your-daemon-or-script.rb"]

Put this file in the root of your app, next to the Gemfile.

This image includes multiple ONBUILD triggers which should be all you need to bootstrap most applications. The build will COPY . /usr/src/app and RUN bundle install.

You can then build and run the Ruby image:

docker build -t my-ruby-app .
docker run -it --name my-running-script my-ruby-app

Run a single Ruby script

For many simple, single file projects, you may find it inconvenient to write a complete Dockerfile. In such cases, you can run a Ruby script by using the Ruby Docker image directly:

docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp ruby:2.1.2 ruby your-daemon-or-script.rb

User Feedback

Issues

If you have any problems with, or questions about this image, please contact us through a GitHub issue or via the IRC channel #docker-library on Freenode.

Contributing

You are invited to contribute new features, fixes, or updates, large or small; we are always thrilled to receive pull requests, and do our best to process them as fast as we can.

Before you start to code, we recommend discussing your plans through a GitHub issue, especially for more ambitious contributions. This gives other contributors a chance to point you in the right direction, give you feedback on your design, and help you find out if someone else is working on the same thing.