This is an Alpine 3.8 Ruby 1.9.3-p550 Docker image for the Ruby on Rails 4.1.8 proposal, including some build dependencies, bundler, and libv8 gems.
$ docker build -t alpine-ruby-rbenv-libv8 --rm=true .
$ docker run -it alpine-ruby-rbenv-libv8
$ docker run -p 8000:8000 alpine-ruby-rbenv-libv8 [optional -u user ...]
$ exit
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