Ansible—— 29. 通过set_fact模块定义变量

set_fact模块可以在tasks中定义变量

---
- hosts: test70
  remote_user: root
  vars:
    testvar1: test1_string
  tasks:
  - shell: "echo test2_string"
    register: shellreturn
  - set_fact:
      testsf1: "{{testvar1}}"
      testsf2: "{{shellreturn.stdout}}"
  - debug:
      msg: "{{testsf1}} {{testsf2}}"

在第一个hosts中testvar1正常输出，但是在第二个hosts中就不能输出testvar1了。

---
- hosts: test70
  remote_user: root
  vars:
    testvar1: tv1
  tasks:
  - set_fact:
      testvar2: tv2
  - debug:
      msg: "{{testvar1}} ----- {{testvar2}}"
 
- hosts: test70
  remote_user: root
  tasks:
  - name: other play get testvar2
    debug:
      msg: "{{testvar2}}"
  - name: other play get testvar1
    debug:
      msg: "{{testvar1}}"

注册的变量都可以正常输出

---
- hosts: test70
  remote_user: root
  vars:
    testvar3: tv3
  tasks:
  - shell: "echo tv4"
    register: testvar4
  - debug:
      msg: "{{testvar3}} -- {{testvar4.stdout}}"
 
- hosts: test70
  remote_user: root
  tasks:
  - name: other play get testvar4
    debug:
      msg: "{{testvar4.stdout}}"
  - name: other play get testvar3
    debug:
      msg: "{{testvar3}}"

————Blueicex 2020/03/26 19:12 [email protected]