在Ansible中的vars_prompt中使用变量作为默认值

问题描述

我试图在Ansible中使用vars_prompt，并将默认值从事实中提取(或从以前定义的变量中获取).该剧本旨在用作初始配置的临时书.

I was trying to use vars_prompt in Ansible with default values taken from facts (or otherwise a previously defined variable). The playbook is intended be used as an ad-hoc one for initial provisioning.

我的剧本:

---
- hosts: server01
  gather_facts: True
  vars_prompt:
    - name: new_hostname
      prompt: please enter the name for the target
      default: "{{ ansible_hostname }}"
      private: no
  tasks:
    - debug: msg="{{ new_hostname }}"

当前结果:

please enter the name for the target [{{ ansible_hostname }}]:
ERROR! 'ansible_hostname' is undefined

预期结果(假设ansible_hostname=server01:

please enter the name for the target [server01]:

可以在Ansible中实现吗?

Is it possible to achieve in Ansible?

推荐答案

可以使用 pause模块:

This can be implemented using the pause module:

---
- hosts: server01
  gather_facts: True
  tasks:
    - pause:
        prompt: please enter the name for the target [{{ ansible_hostname }}]
      register: prompt

    - debug:
        msg: "{{ prompt.user_input if prompt.user_input else ansible_hostname }}"

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