88 lines
4.0 KiB
Markdown
88 lines
4.0 KiB
Markdown
# Supported tags and respective `Dockerfile` links
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- [`1.9.3-p550`, `1.9.3`, `1.9`, `1` (*1.9/Dockerfile*)](https://github.com/docker-library/ruby/blob/59efe8f7291ffddf5c8b3f8b6f784ad80905f34c/1.9/Dockerfile)
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- [`1.9.3-p550-onbuild`, `1.9.3-onbuild`, `1.9-onbuild`, `1-onbuild` (*1.9/onbuild/Dockerfile*)](https://github.com/docker-library/ruby/blob/59efe8f7291ffddf5c8b3f8b6f784ad80905f34c/1.9/onbuild/Dockerfile)
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- [`2.0.0-p594`, `2.0.0`, `2.0` (*2.0/Dockerfile*)](https://github.com/docker-library/ruby/blob/59efe8f7291ffddf5c8b3f8b6f784ad80905f34c/2.0/Dockerfile)
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- [`2.0.0-p594-onbuild`, `2.0.0-onbuild`, `2.0-onbuild` (*2.0/onbuild/Dockerfile*)](https://github.com/docker-library/ruby/blob/59efe8f7291ffddf5c8b3f8b6f784ad80905f34c/2.0/onbuild/Dockerfile)
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- [`2.1.4`, `2.1`, `2`, `latest` (*2.1/Dockerfile*)](https://github.com/docker-library/ruby/blob/59efe8f7291ffddf5c8b3f8b6f784ad80905f34c/2.1/Dockerfile)
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- [`2.1.4-onbuild`, `2.1-onbuild`, `2-onbuild`, `onbuild` (*2.1/onbuild/Dockerfile*)](https://github.com/docker-library/ruby/blob/59efe8f7291ffddf5c8b3f8b6f784ad80905f34c/2.1/onbuild/Dockerfile)
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For more information about this image and its history, please see the [relevant
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manifest file
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(`library/ruby`)](https://github.com/docker-library/official-images/blob/master/library/ruby)
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in the [`docker-library/official-images` GitHub
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repo](https://github.com/docker-library/official-images).
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# What is Ruby?
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Ruby is a dynamic, reflective, object-oriented, general-purpose, open-source
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programming language. According to its authors, Ruby was influenced by Perl,
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Smalltalk, Eiffel, Ada, and Lisp. It supports multiple programming paradigms,
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including functional, object-oriented, and imperative. It also has a dynamic
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type system and automatic memory management.
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> [wikipedia.org/wiki/Ruby_(programming_language)](https://en.wikipedia.org/wiki/Ruby_(programming_language))
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# How to use this image
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## Create a `Dockerfile` in your Ruby app project
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FROM ruby:2.1.2-onbuild
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CMD ["./your-daemon-or-script.rb"]
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Put this file in the root of your app, next to the `Gemfile`.
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This image includes multiple `ONBUILD` triggers which should be all you need to
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bootstrap most applications. The build will `COPY . /usr/src/app` and `RUN
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bundle install`.
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You can then build and run the Ruby image:
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docker build -t my-ruby-app .
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docker run -it --name my-running-script my-ruby-app
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### Generate a `Gemfile.lock`
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The `onbuid` tag expects a `Gemfile.lock` in your app directory. This `docker
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run` will help you generate one. Run it in the root of your app, next to the
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`Gemfile`:
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docker run --rm -v "$(pwd)":/usr/src/app -w /usr/src/app ruby:2.1.2 bundle install --system
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## Run a single Ruby script
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For many simple, single file projects, you may find it inconvenient to write a
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complete `Dockerfile`. In such cases, you can run a Ruby script by using the
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Ruby Docker image directly:
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docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp ruby:2.1.2 ruby your-daemon-or-script.rb
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# License
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View [license information](https://www.ruby-lang.org/en/about/license.txt)
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for the software contained in this image.
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# User Feedback
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## Issues
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If you have any problems with or questions about this image, please contact us
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through a [GitHub issue](https://github.com/docker-library/ruby/issues).
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You can also reach many of the official image maintainers via the
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`#docker-library` IRC channel on [Freenode](https://freenode.net).
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## Contributing
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You are invited to contribute new features, fixes, or updates, large or small;
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we are always thrilled to receive pull requests, and do our best to process them
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as fast as we can.
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Before you start to code, we recommend discussing your plans
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through a [GitHub issue](https://github.com/docker-library/ruby/issues), especially for more ambitious
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contributions. This gives other contributors a chance to point you in the right
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direction, give you feedback on your design, and help you find out if someone
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else is working on the same thing.
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