sounds like nics is an empty list, your first example is correct syntax,
the rest are not.
On Wed, Aug 12, 2015 at 12:27 PM, <lilfe...@cisco.com> wrote:
> Hi Guys,
>
> Thank you for the responses. I should have mentioned this - I had already
> tried several combinations (including the suggestion above) with and
> without nested {{ }}, but still can't get a working syntax. Please see
> below for some attempts and their results.
>
> Putting an example/note in the docs would be really helpful as well.
>
> Thanks,
> Lilian
>
> host# ansible-playbook test.yml --extra-vars "num=0"
>
> Format Attempt:
> cvmip: "{{nics[num].ip}}"
> Result:
> TASK: [Static IP Case - Find out Static Overlay IP]
> ***************************
> fatal: [127.0.0.1] => One or more undefined variables: 'list object' has
> no attribute u'0'
>
> Format Attempt:
> cvmip: "{{nics['num'].ip}}"
> Result:
> TASK: [Static IP Case - Find out Static Overlay IP]
> ***************************
> fatal: [127.0.0.1] => One or more undefined variables: 'list object' has
> no attribute 'num'
>
> Format Attempt:
> cvmip: "{{nics}}"["{{num}}"].ip}}
> Result:
> ERROR: Syntax Error while loading YAML script, test.yml
>
>
>
>
> On Tuesday, August 11, 2015 at 6:35:06 PM UTC-7, Timothy Appnel wrote:
>>
>> That is a good way of thinking of explaining it in the context of Ansible
>> -- start Jinja, stop Jinja. At the same time, how would you have
>> represented this in a Jinja template? Jinja doesn't allow for nested
>> mustaches in any context that I am aware of.
>>
>> I'm sure a patch to the docs to make light of this would be appreciated.
>>
>>
>>
>> [image: photo]
>> Timothy Appnel
>> Senior Solutions Architect
>>
>> Ansible, Inc. *•* www.ansible.com
>>
>> On Tue, Aug 11, 2015 at 8:38 PM, Josh Smift <j...@care.com> wrote:
>>
>>> TA> Don't use nested mustaches.
>>>
>>> This should probably be a FAQ. :^) FWIW, what helped me understand this
>>> is
>>> that the mustaches aren't saying "here's a variable" (in which case you
>>> might think, incorrectly, that you need to put them around all variables
>>> all the time everywhere), but rather "start parsing this as Jinja", and
>>> that once you say that, it keeps happening until you close the mustaches
>>> (which means "stop parsing this as Jinja"). One of the things that
>>> happens
>>> when you're parsing as Jinja is that variables get expanded, but thinking
>>> of it as "start Jinja" and "stop Jinja" helped me keep it straight when I
>>> first started with this stuff, anyway.
>>>
>>> -Josh (j...@care.com)
>>>
>>>
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--
Brian Coca
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