Hi Will,
works like a charm.
Many thanks.
Christian
Am Montag, 14. April 2014 14:52:50 UTC+2 schrieb Will Thames:
>
> I was just looking into how I might implement this and there's an
> interesting side effect of ec2_vol if a volume is already attached
>
> Assuming you run ec2 and register the result as ec2, the following works:
>
> - name: get root volume
> action:
> module: ec2_vol
> instance: "{{ec2.instances[0].id}}"
> device_name: '/dev/sda1'
> region: ap-southeast-2
> volume_size: 1
> register: ec2_vol
>
> (note that volume_size doesn't matter, it's ignored but the module fails
> without it - with an error message that can only be described as unhelpful!)
>
> You get as a result:
>
> ok: [127.0.0.1] => {"changed": false, "device": "/dev/sda1", "msg":
> "Volume mapping for /dev/sda1 already exists on instance i-834ab5bd",
> "volume_id": "vol-92cee996"}
>
> And so you can use ec2_vol.volume_id as a resource id to pass to ec2_tag.
>
> Will
>
> On 14 Apr 2014, at 20:25, Christian Kaps <[email protected]<javascript:>>
> wrote:
>
> Hi Will,
>
> Thanks for your answer.
>
> I would like to create a tag for the root volume. So for my use case the
> ec2 module should return the IDs and the device names of the attached
> volumes after instance creation.
>
> Should I create a future request and point to this thread?
>
> Thanks,
> Christian
>
> Am Sonntag, 13. April 2014 03:00:08 UTC+2 schrieb Will Thames:
>>
>> Had a quick look at this in more detail.
>>
>> Neither the ec2 nor the ec2_facts module expose this information. It is
>> available but in particular adding it to ec2_facts module would require
>> fundamental changes (as currently the ec2_facts module gets all of its
>> information from logging onto the box and reading the metadata, whereas
>> this information would only be available through talking to the API - see
>> http://stackoverflow.com/questions/5251057/using-boto-to-find-to-which-device-and-ebs-volume-is-mounted).
>>
>> I'm not adverse to such a change but making it optional and non-breaking
>> for other users of the module is probably the challenge.
>>
>> Returning the value from the ec2 module is probably quite
>> straightforward, on the other hand.
>>
>> Will
>>
>> On 13 Apr 2014, at 10:14, Will Thames <[email protected]> wrote:
>>
>> Hi Christian,
>> How would you like to obtain the information - at instance creation time
>> or at an arbitrary point in time later? (i.e. do you want to be able to get
>> the instance ID as a value returned by the ec2 module, or from ec2_facts?)
>>
>> Will
>>
>> On Friday, April 11, 2014 7:59:09 PM UTC+10, Christian Kaps wrote:
>>>
>>> Hi,
>>>
>>> is there any possibility to get the id of the root EBS volume of a newly
>>> created EC2 instance? I cannot find any documentation about it?
>>>
>>> Thanks,
>>> Christian
>>>
>>
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