linux-server-tools/own-your-cloudkey/own.sh

#!/bin/bash

### This script will allow you to own your Cloudkey Gen2 and Gen2+.

### This is an early version 0.2... more features to come.

### If you use this it is at your own risk.

### I will add more features, like creating a single partition drive,
### and mounting external drives, and auto repair the sshd_config in
### the event SSH updates and overwrites the settings.

echo "About to remove all the UniFi software. You act at your own choice."
echo "I am not responsible if anything goes wrong."
echo
echo "Type: \"I understand.\""
read check

if [[ $check == "I understand." ]]; then
  echo "Here goes... hold thumbs..."
else
  exit 1
fi

apt update
apt -y upgrade

apt -y remove mongodb-clients mongodb-server-core mongodb-server uid-agent unifi-pion-gw node18

apt -y remove unifi-core ucore-setup-listener uck-tools ubnt-zram-swap ubnt-unifi-setup ubnt-ucp4cpp ubnt-systemhub ubnt-opencv4-libs ubnt-disk-smart-mon ustd ubnt-binmecpp ubnt-archive-keyring python3-unifi-console-protos simple-pid

apt -y remove nginx node20 nodejs

mkdir /usr/share/postgresql/9.6/man/man1
touch /usr/share/postgresql/9.6/man/man1/psql.1.gz
apt -y remove postgresql-9.6 postgresql-client-9.6 postgresql-contrib-9.6

mkdir /usr/share/postgresql/14/man/man1
touch /usr/share/postgresql/14/man/man1/psql.1.gz
apt -y remove postgresql-14 postgresql-client-14

mkdir /usr/share/postgresql/16/man/man1
touch /usr/share/postgresql/16/man/man1/psql.1.gz
apt -y remove postgresql-16 postgresql-client-16 postgresql postgresql-common postgresql-client-common

echo "Paste your rsa_id.pub key and press enter..."
read authorizedkey

mkdir /root/.ssh
echo "$authorizedkey" > /root/.ssh/authorized_keys

cat /etc/ssh/sshd_config | grep --invert-match "PermitRootLogin" > sshd_config.backup
echo "PermitRootLogin prohibit-password" >> sshd_config.backup
echo "PubkeyAuthentication yes" >> sshd_config.backup
echo "AuthorizedKeysFile	.ssh/authorized_keys .ssh/authorized_keys2" >> sshd_config.backup
rm /etc/ssh/sshd_config
cp sshd_config.backup /etc/ssh/sshd_config

echo "Press ENTER to reboot..."

read check

reboot now