自引用对象(字段是另一个的结果)Jinja

Self Referencing Object (Field is result of another) Jinja

大家好 :D

我正在尝试创建一个对象,其中一个字段依赖于另一个字段,假设 group_vars/all 文件中的内容类似于:

people_names:
 - first_name: tom
   last_name: hardy
   full_name: " {{ first_name}} {{ last_name}} "

任务非常简单(我正在尝试调试)

---
- hosts: 127.0.0.1
  tasks:
  - name: Test jinja2template
    template: src=test.j2 dest=test.conf

test.j2 类似于:

{% for person in people_names %}
person_full_name = person.full_name
{% endfor %}

这在 Ansible/Jinja 中甚至可能吗?

为了构建它,我运行正在执行命令:

ansible-playbook jinja2test.yml --check --diff --connection=local

如果您需要更多信息,请随时询问并提前致谢 :D

编辑: 当我 运行 这个我得到 AnsibleUndefinedVariable 对于 last_name

Q: "Create an object in which a field depends on another."

答:不可能。参见示例 #8603。如果需要,用全名创建字典。例如

  vars:
    people_names:
      - first_name: tom
        last_name: hardy
  tasks:
    - set_fact:
        people_full_names: "{{ people_full_names|default([]) +
                               [item|combine({'full_name': full_name})] }}"
      loop: "{{ people_names }}"
      vars:
        full_name: "{{item.first_name}} {{ item.last_name }}"

    - debug:
        var: people_full_names

给予

    "people_full_names": [
        {
            "first_name": "tom", 
            "full_name": "tom hardy", 
            "last_name": "hardy"
        }
    ]