Ansible 將標准輸出與變量進行比較

Question

我有一個問題，因為我正在發瘋。 我想將標准輸出結果與存儲在我的 vars 文件中的一個變量進行比較。 例如，不是使用變量而是使用字符串（IP 22.22.2.2），它可以工作：

網絡.yml

- List_nets_find: 
  - host 22.22.2.2

劇本：

---
- name: Black List
  hosts: routers
  gather_facts: false
  vars_files:
   - vars/Nets.yml

  tasks:    

   - name: Check the object-group
     ios_command:
      commands: 
       - command: "show object-group BLOCK-LIST" 
     register: output
     tags:
     - see
   - debug:
      msg: included
     when: output.stdout is search('22.22.2.2')
     tags:
     - see

結果：

TASK [debug] **************************************************************************************************************************************************************************************
skipping: [Router1]
ok: [Router3] => {
    "msg": "included"
}
ok: [Router2] => {
    "msg": "included"
}

但是我沒有使用字符串，而是使用了變量，它不起作用。

- name: Black List
  hosts: routers
  gather_facts: false
  vars_files:
   - vars/Nets.yml

  tasks:    

   - name: Check the object-group
     ios_command:
      commands: 
       - command: "show object-group BLOCK-LIST" 
     register: output
     tags:
     - see
   - debug:
      msg: included
     when: output.stdout is search('{{List_net_find}}')
     tags:
     - see

這是錯誤：

fatal: [Router1]: FAILED! => {"msg": "The conditional check 'output.stdout is search('{{List_net_find}}')' failed. The error was: error while evaluating conditional (output.stdout is search('{{List_net_find}}')): 'List_net_find' is undefined\n\nThe error appears to be in '/home/ansible/Ios_ACL_LAB/object-group.yml': line 23, column 10, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n         - see\n       - debug:\n         ^ here\n"}
fatal: [Router3]: FAILED! => {"msg": "The conditional check 'output.stdout is search('{{List_net_find}}')' failed. The error was: error while evaluating conditional (output.stdout is search('{{List_net_find}}')): 'List_net_find' is undefined\n\nThe error appears to be in '/home/ansible/Ios_ACL_LAB/object-group.yml': line 23, column 10, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n         - see\n       - debug:\n         ^ here\n"}
fatal: [Router2]: FAILED! => {"msg": "The conditional check 'output.stdout is search('{{List_net_find}}')' failed. The error was: error while evaluating conditional (output.stdout is search('{{List_net_find}}')): 'List_net_find' is undefined\n\nThe error appears to be in '/home/ansible/Ios_ACL_LAB/object-group.yml': line 23, column 10, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n         - see\n       - debug:\n         ^ here\n"}

有什么建議嗎？ 或其他方式來做到這一點？

非常感謝！

Answer 1

您的vars/Nets.yml沒有聲明名為List_nets_find的變量，它聲明了一個匿名列表，其第一個元素是一個dict ，其唯一鍵名為List_nets_find

如果您想要一個名為該變量的變量，則將- List_nets_find:更改為List_nets_find:

---

另外，您要問的下一個問題是“為什么我的搜索不匹配任何內容”，這是因為List_nets_find是 str 的列表，因此您需要將該測試更改為output.stdout is search(List_nets_find | map("regex_escape") | join("|")) ，使用regex_escape過濾器將這些字符串轉換為可以安全地輸入search替換的內容