FROM ruby:3.1 # Move it WORKDIR /opt COPY public/ ./public/ COPY views/ ./views/ COPY Gemfile . COPY config.ru . COPY mywillpower.rb . # Dependencies RUN apt-get update RUN apt-get -y upgrade RUN bundle install # Environment EXPOSE 4567 # Send it CMD ["bundle", "exec", "rackup", "-o", "0.0.0.0", "-p", "4567", "-E", \ "production"]