使用ansible打印YAML文件中缩进的变量值

我正在使用Ansible生成一个行为配置文件。此配置文件是YAML文件。我使用的Jinja2模板如下：

default:
  paths:
    features: '../all/tests/features'
  filters:
    tags: "~@api&&~@drush"
  extensions:
    Behat\MinkExtension\Extension:
    files_path: '{{ project_docroot }}/sites/all/tests/files'
      files_path: '{{ project_docroot }}'
      goutte: ~
      selenium2: ~
      base_url: '{{ base_url }}'
    Drupal\DrupalExtension\Extension:
      blackbox: ~
      drush_driver: "drush"
      drush:
        root: "{{ project_docroot }}"
      api_driver: "drupal"
      drupal:
        drupal_root: "{{ project_docroot }}"
      region_map:
{{ project_behat_region_map }}
      selectors:
{{ project_behat_selectors }}

以及以下定义的变量：

project_behat_region_map: |
        content: "#content"
        footer: "#footer"
        header: "#header"
        header bottom: "#header-bottom"
        navigation: "#navigation"
        highlighted: "#highlighted"
        help: "#help"
        bottom: "#bottom"

project_behat_selectors: |
        message_selector: '.messages'
        error_message_selector: '.messages.error'
        success_message_selector: '.messages.status'
        warning_message_selector: '.messages.warning'

如您所见，变量值是缩进的，但粘贴到Jinja2模板时，缩进丢失：

default:
  paths:
    features: '../all/tests/features'
  filters:
    tags: "~@api&&~@drush"
  extensions:
    Behat\MinkExtension\Extension:
    files_path: '/var/www//bacteriemias/docroot/sites/all/tests/files'
      files_path: '/var/www//bacteriemias/docroot'
      goutte: ~
      selenium2: ~
      base_url: 'http://bacteriemias.me'
    Drupal\DrupalExtension\Extension:
      blackbox: ~
      drush_driver: "drush"
      drush:
        root: "/var/www//bacteriemias/docroot"
      api_driver: "drupal"
      drupal:
        drupal_root: "/var/www//bacteriemias/docroot"
      region_map:
content: "#content"
footer: "#footer"
header: "#header"
header bottom: "#header-bottom"
navigation: "#navigation"
highlighted: "#highlighted"
help: "#help"
bottom: "#bottom"


      selectors:
message_selector: '.messages'
error_message_selector: '.messages.error'
success_message_selector: '.messages.status'
warning_message_selector: '.messages.warning'

---

这不是有效的YAML。如何在Jinja2中打印带有缩进的变量？

事实证明，可以使用

缩进（s，宽度=4，缩进优先=False）

返回已通过的文件的副本 字符串，每行缩进4个空格。第一行不是 缩进的。如果要更改空格数或缩进 第一行也可以将其他参数传递给过滤器：

{{mytext |缩进（2，真）} 缩进两个空格，第一行也缩进

因此，我的情况是：

default:
  paths:
    features: '../all/tests/features'
  filters:
    tags: "~@api&&~@drush"
  extensions:
    Behat\MinkExtension\Extension:
    files_path: '{{ project_docroot }}/sites/all/tests/files'
      files_path: '{{ project_docroot }}'
      goutte: ~
      selenium2: ~
      base_url: '{{ base_url }}'
    Drupal\DrupalExtension\Extension:
      blackbox: ~
      drush_driver: "drush"
      drush:
        root: "{{ project_docroot }}"
      api_driver: "drupal"
      drupal:
        drupal_root: "{{ project_docroot }}"
      region_map:
{{ project_behat_region_map | indent( width=8, indentfirst=True) }}

      selectors:
{{ project_behat_selectors | indent( width=8, indentfirst=True) }}