Template handler name

lib/ansible/plugins/strategy/__init__.py

@@ -831,7 +831,14 @@ class StrategyBase:
             #        we consider the ability of meta tasks to flush handlers
             for handler in handler_block.block:
                 if handler._uuid in self._notified_handlers and len(self._notified_handlers[handler._uuid]):
-                    result = self._do_handler_run(handler, handler.get_name(), iterator=iterator, play_context=play_context)
+                    handler_vars = self._variable_manager.get_vars(play=iterator._play, task=handler)
+                    templar = Templar(loader=self._loader, variables=handler_vars)
+                    handler_name = handler.get_name()
+                    try:
+                        handler_name = templar.template(handler_name)
+                    except (UndefinedError, AnsibleUndefinedVariable):
+                        pass
+                    result = self._do_handler_run(handler, handler_name, iterator=iterator, play_context=play_context)
                     if not result:
                         break
         return result