ansible 如何指定執(zhí)?指令的主機(jī)？

• hosts: node1
  remote_user: root
  tasks:
• name: remove local template file
  shell: rm -rf /tmp/test.txt
  !img](file:///C:\Users\magedu\AppData\Local\Temp\ksohtml15736\wps7.png)
  delegate_to: localhost