41 lines
2.1 KiB
Markdown
41 lines
2.1 KiB
Markdown
# What is Ruby
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Ruby is a dynamic, reflective, object-oriented, general-purpose programming language. It was designed and developed in the mid-1990s by Yukihiro "Matz" Matsumoto in Japan.
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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.
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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 so that should be all that you need to bootstrap most applications. The build will `COPY . /usr/src/app` and `RUN bundle install`.
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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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## Run a single ruby script
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For many single file projects, it may not be convenient to write a `Dockerfile` for your project. In such cases, you can run a ruby script by using the 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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# User Feedback
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## Issues
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If you have any questions about the image, please contact us through a [GitHub issue](https://github.com/docker-library/ruby/issues) or in the IRC channel `#docker-library` on [Freenode](https://freenode.net).
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## Contributing
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If you want to contribute new features or updates, we are always thrilled to receive pull requests, and do our best to process them as fast as possible.
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We recommend discussing your plans through a [GitHub issue](https://github.com/docker-library/ruby/issues) before starting to code - especially for more ambitious contributions. This gives other contributors a chance to point you in the right direction, give feedback on your design, and maybe point out if someone else is working on the same thing.
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