FROM ruby:3.1 # Move it WORKDIR /opt COPY config/ ./config/ 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", "puma", "-e", "production"]