Ansible group_vars 环境变量替换

Question

将其放入group_vars/all:

default_environment:
  HOME2: "{{ ansible_env.HOME }}"

在任务中使用时定义环境:

environment:
  "{{ default_environment }}"

我明白了:

The field 'environment' has an invalid value, which includes an undefined variable. The error was: {u'HOME2': u'{{ ansible_env.HOME }}'}: 'ansible_env' is undefined
exception type: <class 'ansible.errors.AnsibleUndefinedVariable'>

有没有办法根据当前的远程环境变量定义一个组变量，在这种情况下是$HOME？

编辑:根据请求，可重现的案例:

测试.yml

- name: Test
  hosts: hosts1
  become: true
  become_user: user1

  environment:
    "{{ default_environment }}"

  tasks:
    - debug:
        msg: "{{ ansible_env }}"

group_vars/all

default_environment:
  HOME2: "{{ ansible_env.HOME }}"   

使用 ansible-plyabook test.yml

运行时的

输出

PLAY [Test] ********************************************************************************************************************************************************************************************************************************


TASK [Gathering Facts] *********************************************************************************************************************************************************************************************************************

fatal: [host1]: FAILED! => {}

MSG:

The field 'environment' has an invalid value, which includes an undefined variable. The error was: {u'HOME2': u'{{ ansible_env.HOME }}'}: 'ansible_env' is undefined
exception type: <class 'ansible.errors.AnsibleUndefinedVariable'>
exception: {u'HOME2': u'{{ ansible_env.HOME }}'}: 'ansible_env' is undefined

        to retry, use: --limit @/work/ansible/test.retry

PLAY RECAP *********************************************************************************************************************************************************************************************************************************

host1                      : ok=0    changed=0    unreachable=0    failed=1

Answer 1

错误信息是:

'ansible_env' is undefined

你没有收集事实。

---

在您尝试仅收集事实的游戏之前运行一个游戏，而不声明环境:

- name: Test
  hosts: hosts1
  become: true
  become_user: user1

- name: Test
  hosts: hosts1
  become: true
  become_user: user1
  gather_facts: false

  environment:
    "{{ default_environment }}"

  tasks:
    - debug:
        msg: "{{ ansible_env }}"