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caprover/app-backend/dockerfiles/ruby-rack
T

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RUN apk --update add make g++
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
COPY ./Gemfile /usr/src/app/
RUN bundle install
COPY ./ /usr/src/app
ENV RACK_ENV production
EXPOSE 80
CMD ["rackup", "config.ru", "--host", "0.0.0.0", "--port", "80"]