在 Ansible 临时命令中使用 Ansible 事实 [英] Use Ansible facts in an Ansible ad-hoc command

问题描述

是否可以在 Ansible adhoc 命令中使用通常包含在 ansible_facts 中的内容?

Is it possible to use what would normally be included in ansible_facts in an Ansible adhoc command?

例如，我在所有服务器上的 /tmp/myFile 都有一个文件，我想这样做:

For example, I have a file at /tmp/myFile on all of my servers and I'd like to do:

ansible all -i [inventory file] -m fetch -a "src=/tmp/myFile dest=myFile-[insert ansible_hostname here]"

无需为此编写完整的剧本.

Without having to make a whole playbook for it.

推荐答案

不，您不能在 ansible cli 中引用 ansible 事实.这是因为当您运行 ansible ... -m fetch 时，您没有获得正在运行的主机的事实.事实是使用 setup 模块收集的(您可以通过执行 ansible ... -m setup 来尝试.无论如何，这可以通过像

No you cannot refer to ansible facts in ansible cli. This is because when you run ansible ... -m fetch you are not getting the facts of the host(s) you are running on. The facts are gathered with setup module ( you can try that by doing ansible ... -m setup. Anyway, this can be addressed with a simple playbook like

# file: fetchfile.yml
- hosts: all 
  tasks:
    - fetch: src=/tmp/myFile dest=myFile-{{ inventory_hostname }}

$ ansible-playbook -i [inventory_file] fetchfile.yml

ansible-playbook 隐式运行 setup 模块，因此您可以访问所有作为变量的事实.

ansible-playbook runs the setup module implicitly, so you will have access to all the facts as variables.

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