So in that case, you still just have a play that says "for machines in this
group, these roles apply".
This doesn't imply you would need to template the role names at all.
- hosts: all_my_base
roles:
- are_belong_to_me
- common
- stuff
etc
On Tue, Dec 24, 2013 at 5:34 PM, Aaron Hunter <[email protected]>wrote:
> In general I agree that this isn't a great idea. However, I can see a case
> where one's infrastructure is more elastic, and shrinks and grows
> dynamically. VMs have made this case more likely. What do you think about
> passing a URL for the inventory and main playbook (site.yml) files? If you
> could pass say, http://repo.site.com/production.hosts to the Anisble
> command line then the files could be generated dynamically by the web
> server. With that approach you could keep your inventory and roles in an
> RDBMS and generate the inventory on the fly.
>
> Just an idea...
>
>
> On Friday, December 20, 2013 6:32:56 PM UTC-5, Michael DeHaan wrote:
>
>> Right now I'm guessing role names aren't being templated against extra
>> vars
>>
>> I agree the final one should work with your JSON example, and the first
>> one should work if JMODULES was the name of a single role.
>>
>> I would file a bug in github to track this.... though this is the first
>> time I've got the request.
>>
>> I would generally recommend structuring playbooks to record the desired
>> system configuration, so passing things in and not having them in source
>> control (what hosts get what roles) seems like a bit of an anti-pattern,
>> hence why this is not implemented... but yes, I agree this in principle
>> would be something you might expect to work (however unusual and
>> unexpected).
>>
>>
>>
>>
>>
>>
>>
>> On Fri, Dec 20, 2013 at 9:30 AM, Nicolas Rodriguez <[email protected]
>> > wrote:
>>
>>> Hi!
>>>
>>> I try to do dynamic role calling in playbook like that :
>>>
>>> ---
>>> - hosts: "{{ HOST }}"
>>> user: root
>>>
>>> roles:
>>> - "{{ JMODULES }}"
>>>
>>>
>>> command : ansible-playbook test.yml --extra-vars '{"JMODULES":["apache","
>>> haproxy"]}'
>>>
>>> I get an error : AttributeError: 'list' object has no attribute
>>> 'startswith'
>>>
>>>
>>> If I change to
>>>
>>> ---
>>> - hosts: "{{ HOST }}"
>>> user: root
>>>
>>> roles: "{{ JMODULES }}"
>>>
>>> I get : ERROR: value of 'roles:' must be a list
>>>
>>>
>>> Any help?
>>> Thank you!
>>>
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>>
>>
>>
>> --
>> Michael DeHaan <[email protected]>
>>
>> CTO, AnsibleWorks, Inc.
>> http://www.ansibleworks.com/
>>
>> --
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--
Michael DeHaan <[email protected]>
CTO, AnsibleWorks, Inc.
http://www.ansibleworks.com/
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