Ansible - 使用来自另一个主机的变量 [英] Ansible - use variable from another host

问题描述

我有一个剧本，它在 Windows 机器上执行一个脚本，该剧本返回一个值，我必须在切换到本地主机后在我的剧本中重新使用该值.切换回本地主机后如何访问此值.下面是一个例子:

I have a playbook that executes a script on a Windows box that returns a value that I have to re-use later on in my playbook after switching to the localhost. How can I access this value after switching back to localhost. Here is an example:

hosts: localhost
connection: local
gather_facts: no
tasks:
.
.
.
hosts: windows
gather_facts: no
tasks:
- name: Call PowerShell script
win_command: "c:\\windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe c:\\psl_scripts\\getData.ps1"
register: value_to_reuse

hosts: localhost
gather_facts: no
connection: local
tasks:
- name: debug store_name from windows host
  debug:
    var: "{{ hostvars[windows][value_to_reuse][stdout_lines] }}"

从另一台主机访问变量的正确语法是什么?我收到错误消息:"msg": "该任务包含一个带有未定义变量的选项.错误是:'windows' 未定义

What is the correct syntax accessing a variable from another host? I'm receiving error message: "msg": "The task includes an option with an undefined variable. The error was: 'windows' is undefined

推荐答案

这是有效的代码with_items:

  - name: print value_to_reuse
    debug:
      var: hostvars[item]['value_to_reuse']['stdout_lines']
    with_items: "{{ groups['windows'] }}"

相同的代码无需迭代即可工作:

Same code works without iterations:

 - name: print value_to_reuse
    debug:
      var: hostvars[groups['windows'][0]]['value_to_reuse']['stdout_lines']

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