• 1.9.3-p551, 1.9.3, 1.9, 1 (1.9/Dockerfile)
• 1.9.3-p551-onbuild, 1.9.3-onbuild, 1.9-onbuild, 1-onbuild (1.9/onbuild/Dockerfile)
• 2.0.0-p598, 2.0.0, 2.0 (2.0/Dockerfile)
• 2.0.0-p598-onbuild, 2.0.0-onbuild, 2.0-onbuild (2.0/onbuild/Dockerfile)
• 2.1.5, 2.1, 2, latest (2.1/Dockerfile)
• 2.1.5-onbuild, 2.1-onbuild, 2-onbuild, onbuild (2.1/onbuild/Dockerfile)

For more information about this image and its history, please see the relevant manifest file (library/ruby) in the docker-library/official-images GitHub repo.

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)

FROM ruby:2.1-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

The onbuid tag expects a Gemfile.lock in your app directory. This docker run will help you generate one. Run it in the root of your app, next to the Gemfile:

docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app ruby:2.1 bundle install

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 ruby your-daemon-or-script.rb

View license information for the software contained in this image.

If you have any problems with or questions about this image, please contact us through a GitHub issue.

You can also reach many of the official image maintainers via the #docker-library IRC channel on Freenode.

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.