Dmitry you're a f***** genius!!
Michael, please add Dimitry example in variables website documentation
page... many users will appreciate!
Thanks guys!
Giorgio
Il giorno venerdì 6 dicembre 2013 00:03:59 UTC+1, Dmitry Horbach ha scritto:
>
> Though I couldn't find anything related within past days - I just found
> solution to my problem using following vars :)
>
> users:
> userA: 800
> user: userA
> user_uid: "{{ users[user] }}"
>
> data:
> type1:
> key: value1
> type2:
> key: value2
> type: type1
> type_key: "{{ data[type].key }}"
>
> Thanks
>
> On Friday, December 6, 2013 12:30:50 AM UTC+3, Michael DeHaan wrote:
>>
>> I feel like I've answered this a lot in the last 2 days, see the archives
>> and we can add an entry in the FAQ.
>>
>> -- Michael
>>
>> On Dec 5, 2013, at 4:29 PM, Dmitry Horbach <dim.h...@gmail.com> wrote:
>>
>> Hi Michael,
>>
>> We are also using double evaluation in many places - mostly to not repeat
>> definitions of the same variable
>>
>> *Example 1*
>>
>> user.yml - user uid values
>>
>> userA: 800
>> userB: 801
>>
>> main.yml - role variables
>>
>> user: userA
>> user_uid: ${${user}} # will be resolved to 800
>>
>> *Example 2*
>>
>> type1_data:
>> var1: value1
>> var2: value1
>> type2_data:
>> var1: value2
>> var2: value2
>>
>> type_data: ${${type}_data}
>> type_var1: ${type_data.var1}
>> type_var2: ${type_data.var2}
>>
>> By overriding single variable we get different plays (all var blocks can
>> be defined in role and block selection can go to single var in vars_files)
>> This also allows command line override with -e option by passing just one
>> key=value.
>>
>> What will be the appropriate way to use those after old syntax removed?
>>
>>
>> On Wednesday, December 4, 2013 4:26:54 AM UTC+3, Michael DeHaan wrote:
>>>
>>> Yeah this is a very outdated usage of legacy variables, and a bit of an
>>> anti-pattern whenever you want to define a variable by a variable name.
>>> (There's a reason even Perl tries to discourage this, and that's Perl).
>>>
>>> I don't know where you are defining "jobprofile", but can we step back
>>> and talk about the use case?
>>>
>>> Public service announcement, variables look like this:
>>>
>>> foo: "{{ bar }}"
>>>
>>> And if you want to get at a variable by name that is scoped to a host,
>>> you can do so if you want -- which you won't need often -- like so:
>>>
>>> {{ hostvars[inventory_hostname][fact_name] }}
>>>
>>> This doesn't of course apply to the host specifier -- we haven't even
>>> got to figure out what host we've talked to yet, hence I'm wanting to
>>> understand more.
>>>
>>> This seems like a case better suited to seperate inventory files, or the
>>> case of a dynamic inventory script, the dynamic inventory script responding
>>> to an environment variable.
>>>
>>>
>>>
>>>
>>> On Tue, Dec 3, 2013 at 2:17 AM, Giorgio Crivellari <miti...@gmail.com>wrote:
>>>
>>>> I used to use "hosts" property, in ansible playbook, dinamically for
>>>> example:
>>>>
>>>>> hosts: ${$jobprofile.hosts}
>>>>
>>>> where $jobprofile was an external variable that allow me to change
>>>> hosts based on profile.
>>>>
>>>> Since last 1.4 version, my previous playbook doesn't works any more.
>>>> Have you some suggestion to do an EVAL into a playbook?
>>>>
>>>> Thanks
>>>> Giorgio
>>>>
>>>> --
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>>>>
>>>
>>>
>>>
>>> --
>>> Michael DeHaan <mic...@ansibleworks.com>
>>> CTO, AnsibleWorks, Inc.
>>> http://www.ansibleworks.com/
>>>
>>> --
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