Dockerfile

FROM debian:stable
WORKDIR /root/

# update softwares
RUN apt update
RUN apt upgrade -y

# install basic tools
RUN apt install -y \
    systemd \
    curl wget \
    gcc g++ make \
    vim nano \
    sudo \
    openssh-server \
    git \
    lsof

RUN useradd -rm -d /home/debian -s /bin/bash -g root -G sudo -u 1000 debian 
RUN echo 'debian:debian' | chpasswd
RUN service ssh start
EXPOSE 22
WORKDIR /home/debian/

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