Ansible with_items 如果定义了 item [英] Ansible with_items if item is defined

问题描述

Ansible 1.9.4.

Ansible 1.9.4.

脚本应该只在定义了某些变量的主机上执行某些任务.它正常工作，但它不适用于 with_items 语句.

The script should execute some task only on hosts where some variable is defined. It works fine normally, but it doesn't work with the with_items statement.

- debug: var=symlinks
  when: symlinks is defined

- name: Create other symlinks
  file: src={{ item.src }} dest={{ item.dest }} state=link
  with_items: "{{ symlinks }}"
  when: symlinks is defined

但我明白了:

TASK: [app/symlinks | debug var=symlinks] *********************
skipping: [another-host-yet]

TASK: [app/symlinks | Create other symlinks] ******************
fatal: [another-host-yet] => with_items expects a list or a set

也许我做错了什么?

推荐答案

with_items: "{{ symlinks | default([]) }}"

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