如何阻止Ansible将变量中的双引号替换为单引号？

问题重现 #

直接在任务中编写字面量字符串时，双引号可以正常保留：

- name: Add test monitor
  lucasheld.uptime_kuma.monitor:
    api_url: "https://test.example.com"
    api_token: "{{ token }}"
    type: keyword
    name: testing
    url: http://10.11.10.10:9005/v1/dns/status
    keyword: |-
      {"test":"this works"}
    state: present

对应输出：

{"test":"this works"}

但将字符串替换为变量引用后，双引号会被自动替换为单引号，还会插入不必要的空格：

- name: Add test monitor
  lucasheld.uptime_kuma.monitor:
    api_url: "https://test.example.com"
    api_token: "{{ token }}"
    type: keyword
    name: testing
    url: http://IPADDRESS/v1/dns/status
    keyword: |-
      {{ keyword }}
    state: present
  vars:
    keyword: |-
      {"test":"does not work"}

对应输出：

{'test': 'does not work'}

可行解决办法 #

方法1：用raw过滤器保留原始字符串 #

在引用变量时添加raw过滤器，阻止Ansible对字符串进行转义或格式转换，完全保留变量的原始内容：

- name: Add test monitor
  lucasheld.uptime_kuma.monitor:
    api_url: "https://test.example.com"
    api_token: "{{ token }}"
    type: keyword
    name: testing
    url: http://IPADDRESS/v1/dns/status
    keyword: |-
      {{ keyword | raw }}
    state: present
  vars:
    keyword: |-
      {"test":"does not work"}

方法2：用!unsafe标签标记变量 #

在定义变量时使用!unsafe标签，明确告知Ansible这是不需要处理的原始字符串，避免自动替换引号：

- name: Add test monitor
  lucasheld.uptime_kuma.monitor:
    api_url: "https://test.example.com"
    api_token: "{{ token }}"
    type: keyword
    name: testing
    url: http://IPADDRESS/v1/dns/status
    keyword: |-
      {{ keyword }}
    state: present
  vars:
    keyword: !unsafe '{"test":"does not work"}'

方法3：使用quote过滤器（按需选择） #

如果需要确保字符串的引号格式严格保留，可使用quote过滤器，注意此方法会给整个字符串额外包裹一层双引号，适合下游应用能兼容外层引号的场景：

- name: Add test monitor
  lucasheld.uptime_kuma.monitor:
    api_url: "https://test.example.com"
    api_token: "{{ token }}"
    type: keyword
    name: testing
    url: http://IPADDRESS/v1/dns/status
    keyword: "{{ keyword | quote }}"
    state: present
  vars:
    keyword: '{"test":"does not work"}'

内容的提问来源于stack exchange，提问作者Subbeh