backup scripts

backup.sh

#!/bin/bash
####################################
#
# Backup to NFS mount script.
#
####################################

# What to backup.
backup_files="/srv/homelab/data /etc/nginx/sites-enabled"

# Where to backup to.
dest="/root/backup"

# Create archive filename.
day=$(date +%A)
hostname=$(hostname -s)
archive_file="$hostname-$day.tgz"

# Print start status message.
echo "Backing up $backup_files to $dest/$archive_file"
date
echo

# Backup the files using tar.
dpkg-query -f '${binary:Package}\n' -W > $dest/../packages.txt
tar czf $dest/$archive_file $backup_files

# Print end status message.
echo
echo "Backup finished"
date

# Long listing of files in $dest to check file sizes.
ls -lh $dest

restore.sh

# WARNING: this will overwrite the current installation with the backup contents!
if [[ ! $SKIP_PROMPT ]]; then 
  read -p "Are you sure you want to restore the latest backup? This will overwrite the current installation with the backup contents! " -n 1 -r
  echo    # (optional) move to a new line
  if [[ ! $REPLY =~ ^[Yy]$ ]]; then
    echo "User cancelled restoration, exiting."
    exit 1
  fi
fi

dest="/root/backup"

latest_file=$(ls -t $dest | head -n 1)

sudo tar -xzvf $dest/$latest_file -C /

# Prepare Packages
sudo apt update 
sudo apt-get dist-upgrade
# Install packages list from file
sudo apt install $(< $dest/../packages.txt)
# Clean: Fix eventually broken dependencies and remove unnecessary
sudo apt -f install
sudo apt autoremove