如何将Ansible的with_item与变量一起使用? [英] How to use Ansible's with_item with a variable?

问题描述

我正在尝试转换Ansible Playbook中列表项的某些字段.这是最简单的复制路径，跳过了转换.结果应与users变量相同.

I'm trying to transform some fields of the items of a list in an Ansible Playbook. Here is the simplest reproduction path, skipping the transformation. The result should be identical to the users variable.

---
# Run with:
# ansible-playbook -i "localhost," loop3.yml

- hosts: localhost
  connection: local
  gather_facts: false
  vars:
    users:
      - name: paul
        uid: 1
      - name: pete
        uid: 2
  tasks:
    - set_fact:
      args:
        useritem:
          name: '{{ item.name }}'
          uid:  '{{ item.uid }}'
      with_items:
        - users
      register: sf_result

    - debug: var=sf_result

    - set_fact:
        userslist: "{{ sf_result.results | map(attribute='ansible_facts.useritem') | list }}"

    - debug: var=userslist

我收到此错误:

TASK [set_fact useritem={u'name': u'{{ item.name }}', u'uid': u'{{ item.uid }}'}] ***
fatal: [localhost]: FAILED! => {"failed": true, "msg": "ERROR! 'unicode object' has no attribute 'name'"}

有有几个 示例非常接近我需要的示例，但是我找不到使用set_fact以及with_items和项目作为地图的有效示例.

There are several examples very close to what I needbut I could find no working example using set_fact along with with_items and items as a map.

我尝试使用不同的错误消息尝试Ansible 1.9.2、1.9.4和2.0.0-0.6.rc1，但没有成功. Ansible 2应该允许跳过对set_fact的第二个调用，但是在到达那里之前会发生错误.

I've tried Ansible 1.9.2, 1.9.4, and 2.0.0-0.6.rc1 with different error messages but no more success. Ansible 2 should allow skipping the second call to set_fact but the error happens before getting there.

推荐答案

我想我确实读过某个地方with_items接受一个简单的变量名，但事实并非如此.

I thought I did read somewhere that with_items accepts a bare variable name, but it's not the case.

该程序使用以下命令按预期运行:

The program runs as expected using:

with_items: "{{ users }}"

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