Proxmox/misc/host-backup.sh

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#!/usr/bin/env bash
# Copyright (c) 2021-2023 tteck
# Author: tteck (tteckster)
# License: MIT
# https://github.com/tteck/Proxmox/raw/main/LICENSE
function header_info {
clear
cat <<"EOF"
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__ __ __ ___ __
/ // /__ ___ / /_ / _ )___ _____/ /____ _____
/ _ / _ \(_-</ __/ / _ / _ `/ __/ '_/ // / _ \
/_//_/\___/___/\__/ /____/\_,_/\__/_/\_\\_,_/ .__/
/_/
EOF
}
# Function to perform backup
function perform_backup {
local BACKUP_PATH
local DIR
local DIR_DASH
local BACKUP_FILE
local selected_directories=()
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# Get backup path from user
BACKUP_PATH=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "\nDefaults to /root/\ne.g. /mnt/backups/" 11 68 --title "Directory to backup to:" 3>&1 1>&2 2>&3) || return
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# Default to /root/ if no input
BACKUP_PATH="${BACKUP_PATH:-/root/}"
# Get directory to work in from user
DIR=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "\nDefaults to /etc/\ne.g. /root/, /var/lib/pve-cluster/ etc." 11 68 --title "Directory to work in:" 3>&1 1>&2 2>&3) || return
# Default to /etc/ if no input
DIR="${DIR:-/etc/}"
DIR_DASH=$(echo "$DIR" | tr '/' '-')
BACKUP_FILE="$(hostname)${DIR_DASH}backup"
# Build a list of directories for backup
local CTID_MENU=()
while read -r dir; do
CTID_MENU+=("$(basename "$dir")" "$dir " "OFF")
done < <(ls -d "${DIR}"*)
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# Allow the user to select directories
local HOST_BACKUP
while [ -z "${HOST_BACKUP:+x}" ]; do
HOST_BACKUP=$(whiptail --backtitle "Proxmox VE Host Backup" --title "Working in the ${DIR} directory " --checklist \
"\nSelect what files/directories to backup:\n" 16 $(((${#DIRNAME} + 2) + 88)) 6 "${CTID_MENU[@]}" 3>&1 1>&2 2>&3) || return
for selected_dir in ${HOST_BACKUP//\"/}; do
selected_directories+=("${DIR}$selected_dir")
done
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done
# Perform the backup
header_info
echo -e "This will create a backup in\e[1;33m $BACKUP_PATH \e[0mfor these files and directories\e[1;33m ${selected_directories[*]} \e[0m"
read -p "Press ENTER to continue..."
header_info
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echo "Working..."
tar -czf "$BACKUP_PATH$BACKUP_FILE-$(date +%Y_%m_%d).tar.gz" --absolute-names "${selected_directories[@]}"
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header_info
echo -e "\nFinished"
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echo -e "\e[1;33m \nA backup is rendered ineffective when it remains stored on the host.\n \e[0m"
sleep 2
}
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# Main script execution loop
while true; do
if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "Proxmox VE Host Backup" --yesno "This will create backups for particular files and directories located within a designated directory. Proceed?" 10 88); then
perform_backup
else
break
fi
done