Ansible,如何在主机清单中定义列表? [英] Ansible, how to define a list in host inventory?
问题描述
我有一个剧本,我想在我的主机文件中定义一个字符串列表.
I have a playbook and I want to define a list of strings in my hosts file.
这是我的主机文件:
[dashboard]
1.2.3.4 dashboard_domain=test site_domain=['one','two','foo', 'bar']
这是我尝试使用列表文档编写的剧本:
---
- hosts: dashboard
gather_facts: False
remote_user: ubuntu
become: yes
tasks:
- name: ping
ping:
- debug:
msg: "Domain: {{dashboard_domain}}"
- debug:
msg: "Site: {{ item }}"
with_items: "{{site_domain}}"
但是,使用 ansible-playbook -i hosts ping.yml
运行此剧本会导致此错误:
However running this playbook with ansible-playbook -i hosts ping.yml
causes this error:
任务:[调试] ***********************************************************************
致命:[1.2.3.4] => with_items 需要一个列表或一个集合
TASK: [debug ] ****************************************************************
fatal: [1.2.3.4] => with_items expects a list or a set
这似乎是将定义的列表从主机文件传输到剧本的问题,因为直接在剧本中定义列表是有效的:
This seems to be an issue of transferring the defined list from the host file to the playbook because defining the list directly in the playbook works:
---
- hosts: dashboard
gather_facts: False
remote_user: ubuntu
become: yes
vars:
site_domain: ['one','two','foo', 'bar']
tasks:
#### APPLY HTTP-AUTH ####
- name: ping
ping:
- debug:
msg: "Domain: {{dashboard_domain}}"
- debug:
msg: "Site: {{ item }}"
with_items: "{{site_domain}}"
推荐答案
只需引用变量值:
[dashboard]
1.2.3.4 dashboard_domain=test site_domain="['one','two','foo', 'bar']"
似乎在 INI 格式的清单文件的情况下,如果变量值以未加引号的 [
开头并将其作为字符串传递,则 Ansible 不会解析该变量值.
It seems in case of INI-formatted inventory files, Ansible does not parse the variable value if it starts with an unquoted [
and passes it as a string.
关于您的示例:如果您确实有空间,我不确定为什么您在读取库存文件时没有收到 expected key=value
错误.
Regarding your example: I'm not sure why you're not getting an expected key=value
error on reading the inventory file, if you really have a space inside.
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