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From Michal Fojtik <>
Subject Re: Clarify user data injection
Date Mon, 03 Oct 2011 11:05:23 GMT

Tested with RHEV-M and works.

 -- Michal

On Sep 29, 2011, at 12:32 AM, wrote:

> After some discussion with Joe, who's working on the first serious user of
> user_data injection, Audrey II, we realized that the Deltacloud API was
> terribly unclear in how encoding/decoding the user data should work.
> We want to follow the same rules that other cloud API's have established
> (which seem to me the only sane ones):
>  * The REST API expects user_data to be base64 encoded, and will arrange
>    for user_data to show up in decoded form inside the instance. Where the
>    user data shows up is cloud specific. So far, we have
>      - EC2:
>      - vSphere: file deltacloud-user-data.txt on virtual CD-ROM
>      - RHEV-M: file deltacloud-user-data.txt on virtual floppy
>  * Deltacloud clients should make the whole encoding/decoding dance
>    transparent for their users. IOW, clients should just pass the raw data
>    to the client library, and the library will base64 encode the data
>    before making the REST request to the server.
> This series of patches makes sure we implement the above behavior across
> all drivers and the ruby client. I didn't have a chance to test this for
> RHEV-M and vSphere. Hopefully, somebody else can (I am looking at you
> Michal ;).
> I will be out tomorrow; once the patch is ACK'd, please somebody else
> commit this.
> David

Michal Fojtik,
Deltacloud API:

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