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#!/bin/bash |
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set -e |
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# Author: Husni Adil Makmur |
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# GitHub: https://github.com/husniadil |
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# This script performs backup and restore operations for Docker volumes within Proxmox LXC containers. |
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# Requirements: |
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# - Ensure that `sshpass` is installed. For installation instructions, visit: https://www.cyberciti.biz/faq/noninteractive-shell-script-ssh-password-provider/ |
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# - Root login with a password must be enabled on the Proxmox host. Follow these steps: |
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# 1. Edit the `/etc/ssh/sshd_config` file and apply the following configuration settings: |
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# - ListenAddress 0.0.0.0 |
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# - PasswordAuthentication yes |
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# - PermitRootLogin yes |
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# 2. Restart the SSH service using the command: `systemctl restart sshd` |
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# Usage: |
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# - To backup a volume: `./proxmox.sh backup --host <host> --user <user> --lxc <lxc_number> --volume <volume> --path <path>` |
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# - To restore a volume: `./proxmox.sh restore --host <host> --user <user> --lxc <lxc_number> --volume <volume> --path <path>` |
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# - Parameters: |
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# - `host`: Proxmox host IP address or hostname |
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# - `user`: Proxmox host username |
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# - `lxc`: LXC container number |
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# - `volume`: Name of the Docker volume |
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# - `path`: Path for the backup location |
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# Example: |
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# - To backup: `./proxmox.sh backup --host 192.168.0.100 --user root --lxc 100 --volume searxng_data --path /Users/husni/backup` |
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# > The backup file will be saved to `/Users/husni/backup/searxng_data-backup.tar.gz`. |
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# - To restore: `./proxmox.sh restore --host 192.168.0.100 --user root --lxc 100 --volume searxng_data --path /Users/husni/backup` |
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# > The backup file will be restored from `/Users/husni/backup/searxng_data-backup.tar.gz`, so please ensure that the file exists. This action will overwrite existing files within the Docker volume. |
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# ---------------------------- |
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# Script starts here |
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# ---------------------------- |
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# Function to prompt for SSH password securely |
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prompt_password() { |
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read -sp "Enter SSH password: " SSH_PASS |
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echo |
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} |
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# Function to perform backup |
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backup() { |
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PROXMOX_HOST=$1 |
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PROXMOX_USER=$2 |
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LXC_NUMBER=$3 |
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DOCKER_VOLUME=$4 |
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BACKUP_PATH=$5 |
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echo "Starting backup from Proxmox host: $PROXMOX_HOST, LXC: $LXC_NUMBER, Docker volume: $DOCKER_VOLUME" |
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prompt_password |
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# Create backup directory if it doesn't exist |
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mkdir -p "$BACKUP_PATH" |
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# Perform the backup |
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sshpass -p "$SSH_PASS" ssh "$PROXMOX_USER@$PROXMOX_HOST" "mkdir -p /backup" |
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sshpass -p "$SSH_PASS" ssh "$PROXMOX_USER@$PROXMOX_HOST" "pct exec $LXC_NUMBER -- docker run --rm -v $DOCKER_VOLUME:/mnt/data -v /backup:/backup alpine tar czf /backup/$DOCKER_VOLUME-backup.tar.gz -C /mnt/data ." |
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sshpass -p "$SSH_PASS" ssh "$PROXMOX_USER@$PROXMOX_HOST" "pct pull $LXC_NUMBER /backup/$DOCKER_VOLUME-backup.tar.gz /backup/$DOCKER_VOLUME-backup.tar.gz" |
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sshpass -p "$SSH_PASS" scp "$PROXMOX_USER@$PROXMOX_HOST:/backup/$DOCKER_VOLUME-backup.tar.gz" "$BACKUP_PATH/" |
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echo "Backup completed and saved to $BACKUP_PATH" |
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} |
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# Function to perform restore |
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restore() { |
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PROXMOX_HOST=$1 |
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PROXMOX_USER=$2 |
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LXC_NUMBER=$3 |
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DOCKER_VOLUME=$4 |
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BACKUP_PATH=$5 |
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echo "Starting restore to Proxmox host: $PROXMOX_HOST, LXC: $LXC_NUMBER, Docker volume: $DOCKER_VOLUME" |
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prompt_password |
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# Perform the restore |
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sshpass -p "$SSH_PASS" ssh "$PROXMOX_USER@$PROXMOX_HOST" "mkdir -p /backup" |
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sshpass -p "$SSH_PASS" scp "$BACKUP_PATH/$DOCKER_VOLUME-backup.tar.gz" "$PROXMOX_USER@$PROXMOX_HOST:/backup/" |
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sshpass -p "$SSH_PASS" ssh "$PROXMOX_USER@$PROXMOX_HOST" "pct push $LXC_NUMBER /backup/$DOCKER_VOLUME-backup.tar.gz /backup/$DOCKER_VOLUME-backup.tar.gz" |
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sshpass -p "$SSH_PASS" ssh "$PROXMOX_USER@$PROXMOX_HOST" "pct exec $LXC_NUMBER -- docker run --rm -v $DOCKER_VOLUME:/mnt/data -v /backup:/backup alpine tar xzf /backup/$DOCKER_VOLUME-backup.tar.gz -C /mnt/data" |
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echo "Restore completed from $BACKUP_PATH" |
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} |
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# Main script logic |
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if [ $# -lt 1 ]; then |
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echo "Usage: $0 {backup|restore} --host <host> --user <user> --lxc <lxc_number> --volume <volume> --path <path>" |
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exit 1 |
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fi |
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COMMAND=$1 |
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shift |
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while [ $# -gt 0 ]; do |
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case "$1" in |
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--host) |
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PROXMOX_HOST=$2 |
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shift 2 |
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;; |
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--user) |
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PROXMOX_USER=$2 |
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shift 2 |
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;; |
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--lxc) |
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LXC_NUMBER=$2 |
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shift 2 |
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;; |
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--volume) |
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DOCKER_VOLUME=$2 |
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shift 2 |
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;; |
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--path) |
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BACKUP_PATH=$2 |
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shift 2 |
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;; |
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*) |
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echo "Invalid parameter $1" |
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exit 1 |
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;; |
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esac |
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done |
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case "$COMMAND" in |
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backup) |
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backup "$PROXMOX_HOST" "$PROXMOX_USER" "$LXC_NUMBER" "$DOCKER_VOLUME" "$BACKUP_PATH" |
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;; |
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restore) |
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restore "$PROXMOX_HOST" "$PROXMOX_USER" "$LXC_NUMBER" "$DOCKER_VOLUME" "$BACKUP_PATH" |
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;; |
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*) |
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echo "Invalid command $COMMAND" |
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exit 1 |
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;; |
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esac |
