Ansible Playbook 上的子任务

Question

我可以在 Ansible 上做一个子任务吗？ 我已经尝试过了，但它不起作用：

---
- name: Main_task
  hosts: serv
  tasks:
  - name: Task one
    ....
  - name: Subtasks
    hosts: serv
    tasks:
    - name: Subtask 1
     .....
    - name: Subtask 2
     ....
    with_items:
      - "{{ items_from_task_one }}"
...

Answer 1

您可以使用include_tasks (Ansible Doc) 包含在文件中定义的任务。这是一个工作示例：

1. 创建如下所示的文件结构

   ├── playbooks
   │   ├── main_task.yml
   │   └── subtasks
   │       ├── subtask_1.yml
   │       └── subtask_2.yml
   

2. main_task.yml

   ---
   - name: Main_task
     hosts: localhost
     tasks:
       - name: Task one
         set_fact:
         items_from_task_one:
           - "value_1"
           - "value_2"
   
       - name: Include Subtask 1
         include_tasks: ./subtasks/subtask_1.yml
         with_items:
           - "{{ items_from_task_one }}"
   
       - name: Include Subtask 2
         include_tasks: ./subtasks/subtask_2.yml
         with_items:
           - "{{ items_from_task_one }}"
   ...
   

3. subtask_1.yml

   ---
   - name: Debug message from subtask_1.yml
     debug:
       msg: "I am Subtask 1"
   
   - name: Debug variable passed by main_task
     debug:
       var: item
   ...
   

4. subtask_2.yml

   ---
   - name: Debug message from subtask_2.yml
     debug:
       msg: "I am Subtask 2"
   
   - name: Debug variable passed by main_task
     debug:
       var: item
   ...