linux--ansible(playbook6 外部传入变量值的方法)

外部传入变量值

---
- hosts: testB
  remote_user: root
  tasks:
  - name: "Passing Variables On The Command Line"
    debug:
      msg: "{{pass_var}}"

不给值会报错

只会输出被引用的变量值

---
- hosts: testB
  remote_user: root
  tasks:
  - name: "Passing Variables On The Command Line"
    debug:
      msg: "{{num_var}}"

同时引用传入多个变量值

---
- hosts: testB
  remote_user: root
  tasks:
  - name: "Passing Variables On The Command Line"
    debug:
      msg: "{{num_var,pass_var}}"

外部传入值的优先级大于内部定义

---
- hosts: testB
  remote_user: root
  vars:
    pass_var: test
  tasks:
  - name: "Passing Variables On The Command Line"
    debug:
      msg: "{{pass_var}}"

命令行传入值

ansible testB -e "testdir=redhat" -m shell -a "echo {{testdir}}"

文件传入变量值

---
- hosts: testB
  remote_user: root
  tasks:
  - name: "Passing Variables On The Command Line"
    debug:
      msg: "{{testvar}} {{numlist[2]}}"