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"
__ __ __ ___ __
/ // /__ ___ / /_ / _ )___ _____/ /____ _____
/ _ / _ \(_-</ __/ / _ / _ `/ __/ '_/ // / _ \
/_//_/\___/___/\__/ /____/\_,_/\__/_/\_\\_,_/ .__/
/_/
EOF
}
header_info
while true; do
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read -p "This will backup specific files and directories within the 'etc' directory. Proceed (y/n)?" yn
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case $yn in
[Yy]*) break ;;
[Nn]*) exit ;;
*) echo "Please answer yes or no." ;;
esac
done
header_info
BACKUP_PATH="/root/"
BACKUP_FILE="$(hostname)-host-backup"
selected_directories=()
while read -r dir; do
DIRNAME=$(basename "$dir")
OFFSET=2
if [[ $((${#DIRNAME} + $OFFSET)) -gt ${MSG_MAX_LENGTH:-} ]]; then
MSG_MAX_LENGTH=$((${#DIRNAME} + $OFFSET))
fi
CTID_MENU+=("$DIRNAME" "$dir " "OFF")
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done < <(ls -d /etc/*)
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while [ -z "${HOST_BACKUP:+x}" ]; do
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HOST_BACKUP=$(whiptail --backtitle "Proxmox VE Helper Scripts" --title "SELECTIONS" --checklist \
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"\nSelect what files/directories to backup:\n" \
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16 $(($MSG_MAX_LENGTH + 58)) 6 \
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"${CTID_MENU[@]}" 3>&1 1>&2 2>&3) || exit
for selected_dir in ${HOST_BACKUP//\"}; do
selected_directories+=("/etc/$selected_dir")
done
done
selected_directories_string=$(printf "%s " "${selected_directories[@]}")
header_info
echo -e "This will create backups for the directories \e[1;33m ${selected_directories_string% } \e[0m"
read -p "Press ENTER to continue..."
header_info
tar -czf $BACKUP_PATH$BACKUP_FILE-$(date +%Y_%m_%d).tar.gz --absolute-names ${selected_directories_string% }
echo -e "\nFinished"
echo -e "\e[1;33m \nA backup is rendered ineffective when it remains stored on the host.\n \e[0m"