playbook 之 set_fact

在tasks 中注册变量set_fact，该变量可以跨tasks调用

- hosts: 127.0.0.1
  tasks:
  - set_fact:
      var: "value"
  - name:
    debug:
      msg: "{{ var }}"
      
- hosts: 127.0.0.1
  tasks:
  - name:
    debug:
      msg: "{{ var }}"