• latest, 9, 9.1, 9.1-jre, 9.1.12, 9.1.12-jre, 9.1.12.0, 9.1.12.0-jre (9000/jre/Dockerfile)
• 9-alpine, 9.1-alpine, 9.1-jre-alpine, 9.1.12-alpine, 9.1.12-jre-alpine, 9.1.12.0-alpine, 9.1.12.0-jre-alpine (9000/alpine-jre/Dockerfile)
• 9.1-jdk, 9.1.12-jdk, 9.1.12.0-jdk (9000/jdk/Dockerfile)
• 9.1-jdk-alpine, 9.1.12-jdk-alpine, 9.1.12.0-jdk-alpine (9000/alpine-jdk/Dockerfile)
• 9-onbuild, 9.1-onbuild, 9.1.12-onbuild, 9.1.12.0-onbuild (9000/onbuild/Dockerfile)
• 1.7, 1.7.27, 1.7-jre, 1.7.27-jre (1.7/jre/Dockerfile)
• 1.7-jdk, 1.7.27-jdk (1.7/jdk/Dockerfile)
• 1.7-onbuild, 1.7.27-onbuild (1.7/onbuild/Dockerfile)

• Where to get help:
  the Docker Community Forums, the Docker Community Slack, or Stack Overflow

• Where to file issues:
  https://github.com/cpuguy83/docker-jruby/issues

• Maintained by:
  the Docker Community

• Published image artifact details:
  repo-info repo's repos/jruby/ directory (history)
  (image metadata, transfer size, etc)

• Image updates:
  official-images PRs with label library/jruby
  official-images repo's library/jruby file (history)

• Source of this description:
  docs repo's jruby/ directory (history)

• Supported Docker versions:
  the latest release (down to 1.6 on a best-effort basis)

JRuby (http://www.jruby.org) is an implementation of Ruby (http://www.ruby-lang.org) on the JVM.

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)

JRuby leverages the robustness and speed of the JVM while providing the same Ruby that you already know and love. With JRuby you are able to take advantage of real native threads, enhanced garbage collection, and even import and use java libraries.

FROM jruby:1.7-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 onbuild 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 jruby:1.7 bundle install --system

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 jruby:1.7 jruby your-daemon-or-script.rb

View license information for the software contained in this image.