无法在单引号之间添加单引号

Question

下面是我的剧本：

   - set_fact:
       excludefolders: "{{ excludefolders + ' -o -name ' + item | default('') }}"
     with_items: "{{ lookup('vars', 'MY_' + Layer).split(',') }}"


   - debug:
       msg: "exfolderr is {{ excludefolders }}"

我得到以下输出

ok: [10.0.17.113] => { "msg": "exfolderr is -o -name custom -o -name tree -o -name log"

但是我希望变量在以下项目周围加上单引号：

预期输出：

ok: [10.0.17.113] => { "msg": "exfolderr is -o -name 'custom' -o -name 'tree' -o -name 'log'"

我尝试使用转义字符以及引用过滤器来添加单引号，但它们均无效。下面是尝试过的。

   - set_fact:
       excludefolders: "{{ excludefolders + ' -o -name ' + item | quote | default('') }}"
     with_items: "{{ lookup('vars', 'MY_' + Layer).split(',') }}"

   - set_fact:
       excludefolders: "{{ excludefolders + ' -o -name ' + \' + item + \'  | default('') }}"
     with_items: "{{ lookup('vars', 'MY_' + Layer).split(',') }}"


   - set_fact:
       excludefolders: "{{ excludefolders + ' -o -name ' ~ \' + item ~ \'  | default('') }}"
     with_items: "{{ lookup('vars', 'MY_' + Layer).split(',') }}"


   - set_fact:
       excludefolders: "{{ excludefolders + ' -o -name \''  + item + '\''  | default('') }}"
     with_items: "{{ lookup('vars', 'MY_' + Layer).split(',') }}"

Answer 1

有点难看，但是有效：

---
- hosts: localhost
  tasks:
  - set_fact:
      excludefolders: ""

  - set_fact:
      excludefolders: "{{ excludefolders + ' -o -name ' + quote + item|default('') + quote }}"
    with_items:
    - custom
    - tree
    - log
    vars:
      - quote: "'"

  - debug:
      msg: "exfolderr is {{ excludefolders }}"

给出以下内容：

TASK [debug] ********************************************************************************
ok: [localhost] => 
  msg: exfolderr is  -o -name 'custom' -o -name 'tree' -o -name 'log'