[Openstack] Problems with Fn::Join

Patrick Petit patrick.petit at bull.net
Fri Dec 14 10:26:04 UTC 2012


Steve,
Yes it does.
Thanks!
Patrick
On 12/14/12 11:22 AM, Steven Hardy wrote:
> On Fri, Dec 14, 2012 at 09:57:42AM +0100, Patrick Petit wrote:
>> Hi,
>>
>> We are seeing a new behavior with Fn::Join in user-data block that
>> makes our script fail to run. Previous behavior was that no white
>> space nor line breaks were inserted after a coma (',') or line ends.
>> But now it's inserting white space plus line break after ','
>> separated elements... Do you have any idea why?
>> Thanks
>> Patrick
>>
>> _Exemple_:
>>
>> "Fn::Join":[
>>                       "\n",
> Here you are specifying "\n" as the delimiter, so the fields are being
> joined by a newline.  If you replace the "\n" with "" then no newline will
> be inserted.
>
> http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-join.html
>
> HTH,
>


-- 
Patrick PETIT
Cloud Computing Lead Architect, Innovative Products
Bull, Architect of an Open World TM
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