XCP-NG/Xenserver/Xen VM backup bash script

xen_backup_vm.sh

#!/bin/bash
TARGET=$1
BACKUP_LOCATION=/backup/XVA
VMS_LIST=/tmp/.vms_list_000

if [ -z "$1" ]; then
  echo "No vmname found"
  echo "Usage: ./backup_vm.sh VMNAME"
  exit 0
fi

# Function to list all vms with UUIDs in one line each
list_all_vms() {
  UUIDFILE=/tmp/xen-uuids.txt
  VMS_LIST=/tmp/.vms_list_000
  rm -f ${VMS_LIST}
  xe vm-list is-control-domain=false is-a-snapshot=false | grep uuid | cut -d":" -f2 > ${UUIDFILE}
  for VMUUID in $(cat ${UUIDFILE}); do
    VMNAME=`xe vm-list uuid=$VMUUID | grep name-label | cut -d":" -f2 | sed 's/^ *//g'`
    echo "$VMNAME - UUID:$VMUUID" >> ${VMS_LIST}
  done
}

list_all_vms

LINE=`cat ${VMS_LIST}|grep $TARGET`

NL='
'

# Check if the LINE contains only one line, which means we matched the target vm
case $LINE in
  *"$NL"*) echo "Refine vmname, more than one found"; exit 0;;
esac

NAME=`echo $LINE|awk '{print $1}'`
UUID=`echo $LINE|cut -d ":" -f2`

echo "Taking a snapshot of VM $NAME"
SNAP_UUID=`xe vm-snapshot uuid=$UUID new-name-label=$NAME-snapshot`
echo "Done: SNAP UUID: $SNAP_UUID"
xe template-param-set is-a-template=false ha-always-run=false uuid=$SNAP_UUID

echo "Exporting the backup to file $NAME-backup.xva"
xe vm-export vm=$SNAP_UUID filename=$BACKUP_LOCATION/$NAME-backup.xva

echo "Removing the snapshot"
xe vm-uninstall uuid=$SNAP_UUID force=true

echo "Zipping backup file"
gzip $BACKUP_LOCATION/$NAME-backup.xva

echo "Done. Backup completed."