Dockerfile
FROM ruby:2.2
MAINTAINER roots@asso.gadz.org
RUN mkdir /appli
COPY . /appli/
RUN gem install bundler -v 1.11.2 && \
cd /appli && \
bundle install --jobs=3 --retry=3 --deployment --without developpement
WORKDIR /appli
EXPOSE 3000
CMD ["bundle", "exec", "rails", "server", "-b", "0.0.0.0"]