boolean - 将 True False 与 Ansible When 子句结合使用

Question

我遇到了最愚蠢的问题。我无法弄清楚如何在 Ansible 2.2 任务文件中测试 boolean 值。

在vars/main.yml中，我有:

destroy: false

在剧本中，我有:

roles: 
  - {'role': 'vmdeploy','destroy': true}

在任务文件中，我有以下内容:

- include: "create.yml"
  when: "{{ destroy|bool }} == 'false'"

我尝试了以下各种组合:

when: "{{ destroy|bool }} == false"
when: "{{ destroy|bool }} == 'false'"
when: "{{ destroy|bool  == false}}"
when: "{{ destroy  == false}}"
when: "{{ destroy  == 'false'}}"
when: destroy|bool  == false
when: destroy|bool  == 'false'
when: not destroy|bool

在上述所有情况下，我仍然得到:

statically included: .../vmdeploy/tasks/create.yml

调试输出:

- debug:
    msg: "{{ destroy }}"

---

ok: [atlcicd009] => {
"msg": true
}

期望的结果是它会跳过包含。

Answer 1

当 destroy 为 true 时运行任务:

---
- hosts: localhost
  connection: local
  vars:
    destroy: true
  tasks:
    - debug:
      when: destroy

当destroy为false时:

---
- hosts: localhost
  connection: local
  vars:
    destroy: false
  tasks:
    - debug:
      when: not destroy