FROM ruby:3.2-slim-bookworm

ARG PASSWORD

RUN echo root:${PASSWORD} | chpasswd
COPY apt-insecure.conf /etc/apt/apt.conf.d/99gemastik-insecure
RUN apt-get -o Acquire::AllowInsecureRepositories=true update && \
    apt-get install -y --no-install-recommends \
      openssh-server curl \
      build-essential \
    && rm -rf /var/lib/apt/lists/*
RUN echo "PasswordAuthentication yes" >> /etc/ssh/sshd_config
RUN echo "PermitRootLogin yes" >> /etc/ssh/sshd_config
RUN service ssh start

WORKDIR /ctf/art/

RUN useradd -m ctf
RUN chown -R root:root /ctf/art/

COPY Gemfile .
COPY app.rb .
COPY start.sh .

RUN bundle install
RUN touch /flag.txt

RUN chmod +x start.sh
CMD ./start.sh