实践-ansible playbook变量传递

参考文档：https://www.cnblogs.com/vincenshen/p/12628151.html

1.在命令行传递变量，较灵活。

ansible-playbook -e "host=dev user=root" vars.yaml

---
- name: var test
  hosts: "{{ host }}"
  tasks:
    - name: var test
      debug:
        msg: "Hello {{ user }}"

2.可以将变量写在inventory

ansible-playbook -e "host=dev" vars.yaml

inventory文件内容

[all:vars]
user=root

[dev]
servera.lab.example.com

vars.yaml文件内容

---
- name: var test
  hosts: "{{ host }}"
  tasks:
    - name: var test
      debug:
        msg: "Hello {{ user }}"