Ansible vars_prompt 角色 [英] Ansible vars_prompt for roles

问题描述

我有一套 Ansible 剧本，主要的 yml 文件是这样的

I have a set of Ansible playbooks and the main yml file is like this

- hosts: all 
  roles:
    - common
    - install_nginx

我想在触发剧本时添加确认消息.我试过了，没有用

I want to add the confirm message when I trigger the playbook. I tried this and did not work

- hosts: all
  vars_prompt:
    - name: CONFIRM
      prompt: Just to confirm you will install stuff
  tasks:
    - fail: no deployment this time
      when: CONFIRM != 'yes'
  roles:
    - common
    - install_nginx

在这种情况下，我如何使用 vars_prompt 而无需修改每个 role?

How can I use vars_prompt in this case without modify every role?

推荐答案

如果您查看使用 vars_prompt 运行剧本的输出，您将看到 fail> 任务在其他角色之后运行.适用于剧本和角色的 Ansible 文档 中也提到了这一点:

If you look at the output from running your playbook with the vars_prompt you'll see that the fail task runs after the other roles. This is also mentioned in the Ansible docs for playbooks and roles:

如果剧本还有任务"部分，则执行这些任务应用角色后.

If the play still has a ‘tasks’ section, those tasks are executed after roles are applied.

正如上面的文档还提到，如果你想强制一个任务在任何角色之前运行，那么你可以使用 pre_tasks.

As the above docs also mention if you want to force a task to run before any roles then you can use pre_tasks.

因此，要获得确认样式提示，您可以简单地执行以下操作:

So to have your confirmation style prompt you could simply do this:

- hosts: all
  vars_prompt:
    - name: CONFIRM
      prompt: Just to confirm you will install stuff
  pre_tasks:
    - fail: no deployment this time
      when: CONFIRM != 'yes'
  roles:
    - common
    - install_nginx

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