bugfig: docker error cannot mount file as directory

scripts/backup.sh

@@ -38,6 +38,8 @@ function restore {
 
   $DOCKER_COMPOSE stop $tor_service
 
+  cp $backup_file backup.tar.gz
+
   docker run --rm \
     -v $subscriber_volume:/data/subscriber \
     -v $tor_volume:/data/tor \
@@ -46,6 +48,8 @@ function restore {
     tar -C / -xzvf /backup/backup.tar.gz
 
   $DOCKER_COMPOSE start $tor_service
+
+  rm backup.tar.gz
 }
 
 $1