loops - 如何在 Ansible 中打破循环？

Question

想要在 item 的值变成 7 后中断任务，这里是示例任务

   - hosts: localhost
     tasks:
       - shell: echo {{ item }}
         register: result
         with_sequence: start=4 end=16
         when: "{{ item }} < 7"

在上面的代码中，它从 4 到 16 迭代任务，如下所示

PLAY [localhost] ***********************************************************************************************************************************************

TASK [Gathering Facts] *****************************************************************************************************************************************
ok: [localhost]

TASK [command] *************************************************************************************************************************************************
 [WARNING]: when statements should not include jinja2 templating delimiters such as {{ }} or {% %}. Found: {{ item }} < 7

changed: [localhost] => (item=4)
changed: [localhost] => (item=5)
changed: [localhost] => (item=6)
skipping: [localhost] => (item=7)
skipping: [localhost] => (item=8)
skipping: [localhost] => (item=9)
skipping: [localhost] => (item=10)
skipping: [localhost] => (item=11)
skipping: [localhost] => (item=12)
skipping: [localhost] => (item=13)
skipping: [localhost] => (item=14)
skipping: [localhost] => (item=15)
skipping: [localhost] => (item=16)

PLAY RECAP *****************************************************************************************************************************************************
localhost                  : ok=2    changed=1    unreachable=0    failed=0

Answer 1

Ansible 运行循环并:

用于元素 4 , 5 , 和 6执行 echo命令 - 显示 changed状态，

对于剩余的项目，它不会执行它 - 显示 skipped状态，

你已经实现了你想要的。

您唯一可以改进的是通过修复条件来消除警告:

- hosts: localhost
  tasks:
    - shell: echo {{ item }}
      register: result
      with_sequence: start=4 end=16
      when: "item|int < 7"