S99-append-publickey.sh

#!/bin/sh

#
# Github: github.com/gtrabanco
# Author: Gabriel Trabanco
# Website: gabi.io
# Description: This script append a publickey on UDMB/P because it deleted in every reboot/provision
#     and I hate writing the password.
# 
# You should have installed on_boot.d from https://github.com/boostchicken/udm-utilities/tree/master/on-boot-script
# and place the script in /mnt/data/on_boot.d after edit "MY_PUB_KEY" variable.
#

MY_PUB_KEY="Your public key here"
CRON_FILE="/etc/cron.d/S99-append-publickey"

function create_cron {
    if [ ! -f $CRON_FILE ]; then
            echo "*/10 * * * * /mnt/data/on_boot.d/S99-append-publickey.sh" > /etc/cron.d/S99-append-publickey                                          
            /etc/init.d/crond reload ${CRON_FILE}
    fi
}


create_cron

if ! grep -q "$MY_PUB_KEY" "/root/.ssh/authorized_keys"; then
    echo "$MY_PUB_KEY" >> /root/.ssh/authorized_keys
fi