If statement 检查是否存在Ansible提示变量

在我的site.yml中，我运行一些常见任务，然后包括3个其他剧本。 这3个剧本分别扮演一个角色。 我这样做是为了运行一个完整的site.yml安装，或者运行一个较小的playbook

我想在site.yml中提示输入用户名和密码，我可以这样做。 然后在其他3个剧本/角色中，我想检查用户名和密码是否已经创建，如果没有，则提示输入

我不想多次提示输入凭据

site.yml

---
- hosts: all

  vars_prompt:
    - name: "username"
    - prompt" "enter username"

- include: 1.yml

---
- name: install one
  hosts: all

  # If username has not been defined - This is 
  # where I am confused how to check if it was defined in site.yml
  vars_prompt:
    - name: "userame"
      prompt: "enter username"
  roles:
    - 1role

- name: "username"
- prompt" "enter username"  
  register: username_check

- name: "userame"
  prompt: "enter username"  
  when: username_check is not defined  

1.yml

---
- hosts: all

  vars_prompt:
    - name: "username"
    - prompt" "enter username"

- include: 1.yml

---
- name: install one
  hosts: all

  # If username has not been defined - This is 
  # where I am confused how to check if it was defined in site.yml
  vars_prompt:
    - name: "userame"
      prompt: "enter username"
  roles:
    - 1role

- name: "username"
- prompt" "enter username"  
  register: username_check

- name: "userame"
  prompt: "enter username"  
  when: username_check is not defined  

如果我运行site.yml，它将获得用户名，然后运行1.yml，我不希望它提示输入用户名，因为它是在site.yml中提示输入的

如果我只运行1.yml，我希望它提示输入用户名，因为在本例中我没有运行site.yml

---

有没有一种方法可以提示从剧本中输入凭据，然后在附带的剧本中检查凭据？

您应该创建一个文件，ansible在主机上写入，然后ansible可以检查这些凭据是否已填写，或者您可以使用register（可能是最佳选项）然后使用when to check（何时检查）（when类似于if语句）

例如：

site.yml

---
- hosts: all

  vars_prompt:
    - name: "username"
    - prompt" "enter username"

- include: 1.yml

---
- name: install one
  hosts: all

  # If username has not been defined - This is 
  # where I am confused how to check if it was defined in site.yml
  vars_prompt:
    - name: "userame"
      prompt: "enter username"
  roles:
    - 1role

- name: "username"
- prompt" "enter username"  
  register: username_check

- name: "userame"
  prompt: "enter username"  
  when: username_check is not defined  

1.yml

---
- hosts: all

  vars_prompt:
    - name: "username"
    - prompt" "enter username"

- include: 1.yml

---
- name: install one
  hosts: all

  # If username has not been defined - This is 
  # where I am confused how to check if it was defined in site.yml
  vars_prompt:
    - name: "userame"
      prompt: "enter username"
  roles:
    - 1role

- name: "username"
- prompt" "enter username"  
  register: username_check

- name: "userame"
  prompt: "enter username"  
  when: username_check is not defined  

---

我希望这在某些方面有所帮助。我试图发表评论，但它不允许我发表评论。

您应该制作一个文件，ansible在主机上写入，然后ansible可以检查这些凭据是否已填写，或者您可以使用register（可能是最好的选项），然后使用when to check（when类似于if语句）

例如：

site.yml

---
- hosts: all

  vars_prompt:
    - name: "username"
    - prompt" "enter username"

- include: 1.yml

---
- name: install one
  hosts: all

  # If username has not been defined - This is 
  # where I am confused how to check if it was defined in site.yml
  vars_prompt:
    - name: "userame"
      prompt: "enter username"
  roles:
    - 1role

- name: "username"
- prompt" "enter username"  
  register: username_check

- name: "userame"
  prompt: "enter username"  
  when: username_check is not defined  

1.yml

---
- hosts: all

  vars_prompt:
    - name: "username"
    - prompt" "enter username"

- include: 1.yml

---
- name: install one
  hosts: all

  # If username has not been defined - This is 
  # where I am confused how to check if it was defined in site.yml
  vars_prompt:
    - name: "userame"
      prompt: "enter username"
  roles:
    - 1role

- name: "username"
- prompt" "enter username"  
  register: username_check

- name: "userame"
  prompt: "enter username"  
  when: username_check is not defined  

---

我希望这在某些方面有所帮助。我试图发表评论，但不让我发表评论。

使用注册表不起作用。我在site.yml中得到提示，然后在1.yml中再次得到提示。我将尝试先检查，编写一个文件，然后检查文件。我不喜欢这种方法。我想这是有道理的，注册表不起作用，因为它们是不同的剧本。如果e是将变量转换为true或false的一种更简单的方法（这就是我使用file方法时的想法）。使用注册表不起作用。我在site.yml中得到提示，然后在1.yml中再次得到提示。我将尝试先检查，编写一个文件，然后检查文件。我不喜欢那种方法。我想这是有道理的，注册表不起作用，因为它们是不同的剧本。如果有更简单的方法将变量转换为true或false（这就是我对file方法的想法）。