Ansible has not supported $ substitution in a very very long time.
To generate a variable name programatically, do this through hostvars:
{[ hostvars[inventory_hostname]['ansible_' + linked +
'_bridge']['stdout']['ipv4']['address'] }}
On Thu, Jun 26, 2014 at 4:08 AM, t goto <[email protected]> wrote:
> Hurray! thank you, Mr.Maciej
>
> I never thought this simple :)
>
> 2014年6月26日木曜日 16時59分59秒 UTC+9 Maciej Delmanowski:
>>
>> Here you go:
>>
>> ---
>> - hosts: all
>> vars:
>> interface: 'br0'
>> tasks:
>> - name: External bridge IP address
>> debug: msg="IP address is {{ hostvars[inventory_hostname]['ansible_'
>> + interface]['ipv4'].address }}"
>>
>> Cheers,
>> Maciej
>>
>>
>> 2014-06-26 9:16 GMT+02:00 t goto <[email protected]>:
>>
>>> Hello, ansible experts.
>>> I have a question regarding accessing ansible facts.
>>>
>>> I have a system with interface named randomly and dynamically.
>>> I successfully retrieved int name and registered it to variable.
>>> Now, I want to know the IP address of it with ansible facts but how can
>>> I access it?
>>>
>>> I tried to access "ansible_$interface" with following code,
>>> - name: retrieve interface
>>> (snip)
>>> register: interface
>>>
>>> - debug: msg="{{ ansible_$interface.stdout['ipv4']['address']}}"
>>>
>>> but all I got was simple characters.
>>> ok: [node4] => {
>>> "msg": "{{ansible_$linked_bridge.stdout['ipv4']['address']}}"
>>> }
>>>
>>>
>>> I know it's a very fundamental question, but this variable problems
>>> always get in my way :(
>>>
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>>
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