Just a note: we already use add_host in the way Michael said.
F.i. we first launch a EC2 instance, then add its public IP to the Ansible 
host file using add_host module:
https://github.com/nimiq/ansible-biostar/blob/master/roles/ec2_instance/tasks/main.yml#L83

Paolo

On Monday, 23 June 2014 18:17:51 UTC+2, Roman Valls wrote:
>
> Thanks Michael,
>
> I see, so you would go for the second option and implement the add_host 
> trick described here? Clever:
>
> http://skvidal.wordpress.com/2012/10/31/ansible-and-cloud-instances/
>
> The inline extra-vars are meant to have things like aws_access_key and 
> other sensitive tokens away from potentially public version-controlled 
> files.
>
> In the future we might check if those are on, for instance, $HOME/.botorc 
> instead of having them in a .yml file in our playbook, just one commit away 
> from being published in the open.
>
> Thanks again!
> Roman
>
>
> Den måndagen den 23:e juni 2014 kl. 16:12:24 UTC+2 skrev Michael DeHaan:
>>
>> I'd probably keep the provisioning playbooks seperate and then have them 
>> include the configuration portion using the usual "add_host" handoff.
>>
>> Also I should point out
>>
>> --extra-vars @from_file.yml
>>
>> is an option
>>
>>
>>
>>
>> On Mon, Jun 23, 2014 at 8:41 AM, Roman Valls <[email protected]> 
>> wrote:
>>
>>> Hello Ansible-Project,
>>>
>>> I would like to know which best practices are there when it comes to 
>>> deploying a playbook to several different cloud providers (mainly AWS and 
>>> GCE now, but more might come later).
>>>
>>> More specifically, which one feels more natural to you:
>>>
>>> ansible-playbook site.yml --extra-vars "cloud_provider=aws 
>>> aws_access_key=..."
>>> ansible-playbook site.yml --extra-vars="cloud_provider=gce 
>>> gce_service_email=..."
>>>
>>> Which follows ansible docs on Best Practices...
>>>
>>> ... or the following, shorter version instead?
>>>
>>> ansible-playbook aws.yml --extra-vars "aws_access_key=..."
>>> ansible-playbook gce.yml --extra-vars="gce_service_email=..."
>>>
>>>
>>>
>>> Here's the original GitHub discussion that triggered this email, thanks 
>>> Michael DeeHann for pointing this google group:
>>>
>>> https://github.com/nimiq/ansible-biostar/issues/11
>>>
>>> Thanks in advance,
>>> Roman
>>>  
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>>
>>

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