FROM ubuntu

# ENV container docker
ENV DEBIAN_FRONTEND noninteractive

RUN apt-get update \
  && apt-get install -y --no-install-recommends sudo systemd systemd-sysv \
    build-essential wget libffi-dev libssl-dev \
    python3-pip python3-dev python3-setuptools python3-wheel \
  && rm -rf /var/lib/apt/lists/* \
  && rm -Rf /usr/share/doc && rm -Rf /usr/share/man \
  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
  && rm -rf /lib/systemd/system/multi-user.target.wants/* \
  && rm -rf /etc/systemd/system/*.wants/* \
  && rm -rf /lib/systemd/system/local-fs.target.wants/* \
  && rm -rf /lib/systemd/system/sockets.target.wants/*udev* \
  && rm -rf /lib/systemd/system/sockets.target.wants/*initctl* \
  && rm -rf /lib/systemd/system/sysinit.target.wants/systemd-tmpfiles-setup* \
  && rm -rf /lib/systemd/system/systemd-update-utmp* \
  && apt-get clean

# # Make sure systemd doesn't start gettys on tty
RUN rm -f /lib/systemd/system/multi-user.target.wants/getty.target

VOLUME ["/sys/fs/cgroup"]
CMD ["/lib/systemd/systemd"]