无法为 ansible 中的每个循环项输出标准输出

如何解决无法为 ansible 中的每个循环项输出标准输出

团队，

我想输出我循环的项目的每个标准输出的值。我的情况是查找循环中传递的目录列表的目录大小。所以我无法打印出从我的命令 du -sk /core 的输出中获得的目录名称和大小，例如一种情况

任务

- name: Calculate directories size
  command: "du -sk /{{ item }}"
  register: folder_size_raw
  with_items: "{{ directories }}"
  ignore_errors: yes
  tags: tag_directories_size

- set_fact:
    stdout_lines: []

- set_fact:
    stdout_lines: "{{ stdout_lines + item.stdout_lines }}"
  with_items: "{{ folder_size_raw.results }}"

- debug:
    msg: "This is a stdout line: {{ item }}"
  with_items: "{{ stdout_lines }}"

vars/main.yaml

#variables
directories: ["core","home","lib","mnt","root","raid","usr","var/lib","var"]

输出

16:07:51  PLAY [Node_Operations] *********************************************************
16:07:51  TASK [node_operations : Calculate directories size] ****************************
16:07:51  Saturday 06 March 2021  00:07:51 +0000 (0:00:00.153)       0:00:00.153 ******** 
16:07:54  changed: [node1] => (item=core)
16:07:57  changed: [node1] => (item=home)
16:07:57  changed: [node1] => (item=lib)
16:07:57  changed: [node1] => (item=mnt)
16:07:58  changed: [node1] => (item=root)
16:07:59  changed: [node1] => (item=raid)
16:07:59  changed: [node1] => (item=usr)
16:10:28  changed: [node1] => (item=var/lib)
16:13:31  changed: [node1] => (item=var)
16:13:31 

预期

16:07:51  PLAY [Node_Operations] *********************************************************
16:07:51  
16:07:51  TASK [node_operations : Calculate directories size] ****************************
16:07:51  Saturday 06 March 2021  00:07:51 +0000 (0:00:00.153)       0:00:00.153 ******** 
16:07:54  changed: [node1] => (item=core)
16:07:57  changed: [node1] => (item=home)
16:07:57  changed: [node1] => (item=lib)
16:07:57  changed: [node1] => (item=mnt)
16:07:58  changed: [node1] => (item=root)
16:07:59  changed: [node1] => (item=raid)
16:07:59  changed: [node1] => (item=usr)
16:10:28  changed: [node1] => (item=var/lib)
16:13:31  changed: [node1] => (item=var)
16:13:31 

This is a stdout line: 1GB /core 
This is a stdout line: 3GB /home
......
....
...

解决方法

Ansible 对循环迭代的结果进行了内置计算。

https://docs.ansible.com/ansible/latest/user_guide/playbooks_loops.html#registering-variables-with-a-loop

testFunction