ARG RUBY_VERSION=3.4.10
FROM ruby:${RUBY_VERSION}-slim

RUN apt-get update && apt-get install -y --no-install-recommends build-essential \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY Gemfile Gemfile.lock ./
RUN bundle config set frozen true && bundle install

COPY repro.rb ./

CMD ["ruby", "repro.rb"]
