根据带孩子的小组更改Ansible模板中的变量? [英] Change variable in Ansible template based on group with children?

问题描述

我发现在基于组的Ansible模板中更改变量.但是，如何在有孩子的小组中扩展答案?

I found Change variable in Ansible template based on group. However how do I extend the answer in groups with children?

如果我将上面链接中的group vars文件扩展到

If I extend the group vars file in the link above to

[host0]
host0.my-network.com
[host1]
host1.my-network.com

[es-masters:children]
host0
host1

如何扩展以上帖子的答案(如下所示)以使其与上方的group vars文件一起使用?只是将FQDN放在jinja2语句中是行不通的.

How can I extend the above post's answer (shown below) to make it work with the group vars file above? Simply putting the FQDN in the jinja2 statement does not work.

{% if ansible_fqdn in groups['es-masters'] %}
node_master=true
{% else %}
node_master=false
{% endif %}

推荐答案

您应该做的是:
在模板中提供默认值

What you should do is:
Provide default in template

# role_name/templates/template.j2
node_master={{ role_name_node_master | default(true) }}

比在group_vars中覆盖

Than override in group_vars

# group_vars/es-masters.yml
role_name_node_master: false

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