FROM ruby:3.0.3-slim-bullseye RUN apt-get update && apt-get install -y --no-install-recommends \ build-essential \ libpq-dev \ postgresql-client \ && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* WORKDIR /usr/src/app ENTRYPOINT ["./entrypoint.sh"] EXPOSE 3000 CMD ["bundle", "exec", "rails", "s", "-b", "0.0.0.0"]