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FORMAT ALL THE THINGS

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Tianon Gravi
2015-02-12 13:42:10 -07:00
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ruby/content.md
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# 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.
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)](https://en.wikipedia.org/wiki/Ruby_(programming_language))
> [wikipedia.org/wiki/Ruby_(programming_language)](https://en.wikipedia.org/wiki/Ruby_%28programming_language%29)
%%LOGO%%
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## Create a `Dockerfile` in your Ruby app project
FROM ruby:2.1-onbuild
CMD ["./your-daemon-or-script.rb"]
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
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
docker build -t my-ruby-app .
docker run -it --name my-running-script my-ruby-app
### Generate a `Gemfile.lock`
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`:
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 "$PWD":/usr/src/app -w /usr/src/app ruby:2.1 bundle install
docker run --rm -v "$PWD":/usr/src/app -w /usr/src/app ruby:2.1 bundle install
## 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:
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 "$PWD":/usr/src/myapp -w /usr/src/myapp ruby:2.1 ruby your-daemon-or-script.rb
docker run -it --rm --name my-running-script -v "$PWD":/usr/src/myapp -w /usr/src/myapp ruby:2.1 ruby your-daemon-or-script.rb
ruby/license.md
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View [license information](https://www.ruby-lang.org/en/about/license.txt)
for the software contained in this image.
View [license information](https://www.ruby-lang.org/en/about/license.txt) for the software contained in this image.