FROM ubuntu:22.04

RUN apt-get update && \
    apt-get install -y openssh-server && \
    rm -rf /var/lib/apt/lists/* && \
    mkdir /var/run/sshd

COPY sshd_config /etc/ssh/sshd_config
COPY create_user.sh /tmp/create_user.sh
RUN chmod +x /tmp/create_user.sh && /tmp/create_user.sh

EXPOSE 22

CMD ["/usr/sbin/sshd", "-D"]