FROM ubuntu:xenial

# sshd is disabled for systemd
RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get -y install --no-install-recommends \
	python \
	iputils-ping \
	openssh-server && \
    rm -rf /var/lib/apt/lists/*
RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in *; do if ! test $i = systemd-tmpfiles-setup.service; then rm -f $i; fi; done) && \
    rm -f /lib/systemd/system/multi-user.target.wants/* && \
    rm -f /etc/systemd/system/*.wants/* && \
    rm -f /lib/systemd/system/local-fs.target.wants/* && \
    rm -f /lib/systemd/system/sockets.target.wants/*udev* && \
    rm -f /lib/systemd/system/sockets.target.wants/*initctl* && \
    systemctl disable ssh.service && \
    mkdir -p /var/run/sshd && \
    mkdir -p /root/.ssh && \
    echo "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCgDryK4AjJeifuc2N54St13KMNlnGLAtibQSMmvSyrhH7XJ1atnBo1HrJhGZNNBVKM67+zYNc9J3fg3qI1g63vSQAA+nXMsDYwu4BPwupakpwJELcGZJxsUGzjGVotVpqPIX5nW8NBGvkVuObI4UELOleq5mQMTGerJO64KkSVi20FDwPJn3q8GG2zk3pESiDA5ShEyFhYC8vOLfSSYD0LYmShAVGCLEgiNb+OXQL6ZRvzqfFEzL0QvaI/l3mb6b0VFPAO4QWOL0xj3cWzOZXOqht3V85CZvSk8ISdNgwCjXLZsPeaYL/toHNvBF30VMrDZ7w4SDU0ZZLEsc/ezxjb" > /root/.ssh/authorized_keys

EXPOSE 22
CMD ["/sbin/init"]

