#!/bin/bash

echo === $0 

[ ! -d /root/.ssh ] && {
    mkdir /root/.ssh
    chmod 700 /root/.ssh
}

k=$(cat /etc/vdn/.ssh/id_rsa.pub)

[ -n "$k" ] && {
    ! fgrep -q "$k" /root/.ssh/authorized_keys &&
        echo "$k" >> /root/.ssh/authorized_keys
}