FROM --platform=linux/amd64 ruby:3.3-slim RUN apt-get update && apt-get install -y --no-install-recommends \ build-essential \ default-libmysqlclient-dev \ git \ tzdata \ unzip \ nodejs \ libffi-dev \ libyaml-dev \ pkg-config \ && rm -rf /var/lib/apt/lists/* WORKDIR /app COPY Gemfile ./ RUN bundle install COPY . . EXPOSE 3000 CMD ["/bin/sh", "entrypoint.sh"]