Raspberry Pi | Backup and Sync Pi-hole and UniFi data from a Raspberry Pi to Google Drive

backup.sh

#!/bin/bash

# create backup folders (if they do not exist yet)
mkdir -p ~/backups
mkdir -p ~/backups/unifi
mkdir -p ~/backups/pihole

# backup pi-hole
(cd ~/backups/pihole && pihole -a teleporter)

# and delete all oldest files and keep only 10
# - https://www.ostechnix.com/find-delete-oldest-file-x-files-directory/
(cd ~/backups/pihole && ls -1t | tail -n +11 | xargs rm)

# backup unifi controller (/usr/lib/unifi/data/backup)
# - https://help.ubnt.com/hc/en-us/articles/204952144-UniFi-How-can-I-restore-a-backup-configuration-#2 ==> see Method 3
sudo rsync -av /usr/lib/unifi/data/backup/ ~/backups/unifi

# change permissions of all files (because some of them are owned by root)
sudo find ~/backups -exec chown -R pi:pi {} \;

# sync backups folder with google drive (see setup.sh https://gist.github.com/natterstefan/7565c1de6c21ee982bd69942de579292)
./gdrive sync upload --delete-extraneous ~/backups 45678