#!/bin/bash

VM_NAME="Server2022"
BACKUP_DIR="/mnt/disk02/BACKUP_VM"
RETENTION_DAYS=5
BACKUP_PREFIX="daily-backup"

TIMESTAMP=$(date +"%Y%m%d_%H%M%S")

mkdir -p "$BACKUP_DIR"

SNAPSHOT_NAME="${BACKUP_PREFIX}-${TIMESTAMP}"

virsh suspend "$VM_NAME"

virsh snapshot-create-as "$VM_NAME" "$SNAPSHOT_NAME" \
    --description "Automated daily backup" \
    --live \
    --disk-only

sudo virsh resume "$VM_NAME"

DISK_PATH=$(virsh domblklist "$VM_NAME" --details | awk '$1=="disk" && $2=="disk" {print $3}')

cp "$DISK_PATH" "${BACKUP_DIR}/backup_${TIMESTAMP}.qcow2"

# Optional: Compress the backup
# gzip "${BACKUP_DIR}/backup_${TIMESTAMP}.qcow2"

find "$BACKUP_DIR" -name "backup_*.qcow2" -type f -mtime +$RETENTION_DAYS -delete