带有特殊字符的 Ansible 模板

Question

我有以下 Ansible 变量：

environment:
  CONFIG: |
    external_url 'https://www.example.com'
    external_port '9090'
  USERNAME: root
  ROOT_PASSWORD: verysecret

Ansible 模板文件：

environment:
{% for key, value in environment.items() %}
{{ key }}: {{ value }}
{% endfor %}

输出应该是：

environment:
  CONFIG: |
    external_url 'https://www.example.com'
    external_port '9090'
  USERNAME: root
  ROOT_PASSWORD: verysecret

但是输出是：

environment:
  CONFIG: external_url 'https://www.example.com'
external_port '9090'

  USERNAME: root
  ROOT_PASSWORD: verysecret

看起来

|

字符并没有按字面意思使用。它还打破了缩进。我应该在模板中使用哪个过滤器？

添加了我的剧本和更多内容，因为有人要求：

模板.j2：

---
- hosts: localhost
  vars:
    docker_compose_projects:
       - name: project_1
         services:
           - service_name: some_service
             image: some_image:latest
             environment:
               CONFIG: |
                 external_url 'https://www.example.com'
                 external_port '9090'
               USERNAME: root
               ROOT_PASSWORD: verysecret
  tasks:
    - name: template
      ansible.builtin.template:
        src: template.yml.j2
        dest: "/home/username/{{ item.name }}"
      loop: "{{ docker_compose_projects }}"

模板.yml.j2：

services:
{% for service in item.services %}
  {{ service.service_name }}
    image: {{ service.image }}
{% if service.environment is defined %}
  environment:
{% for key, value in service.environment.items() %}
    {{ key }}: {{ value }}
{% endfor %}
{% endif %}
{% endfor %}

输出（项目_1）：

services:
  some_service:
    image: some_image:latest
    environment:
      CONFIG: external_url 'https://www.example.com'
external_port '9090'

  USERNAME: root
  ROOT_PASSWORD: verysecret

预期输出：

services:
  some_service:
    image: some_image:latest
    environment:
      CONFIG: |
        external_url 'https://www.example.com'
        external_port '9090'
  USERNAME: root
  ROOT_PASSWORD: verysecret

Answer 1

您只需将

|

放入模板本身即可保持多行格式。但正如评论中提到的U880D，你不能使用

environment

作为你自己的变量，它将代表你在任务/游戏级别通过

environment

关键字设置的变量：

# ...
services:
{% for service in item.services %}
  {{ service.service_name }}
    image: {{ service.image }}
{% if service.environment is defined %}
  environment: |
    {% for key, value in service.environment.items() %}
      {{ key }}: {{ value }}
    {% endfor %}
{% endif %}
{% endfor %}
# ...