FROM centos:latest
RUN  yum -y install openssh-clients openssh-server && \
     yum -y clean all && \
     touch /run/utmp && \
     chmod u+s /usr/bin/ping && \
RUN useradd -rm -d /home/ubuntu -s /bin/bash -g root -G sudo -u 1000 test
RUN echo 'test:test' | chpasswd
RUN echo "root:root" | chpasswd
RUN service ssh start
RUN mkdir -p /usr/local/tracston
RUN ssh-keygen -A
EXPOSE 22
CMD ["/usr/sbin/sshd","-D"]