[one-users] Fwd: Contextualization

[Ruben S. Montero]

FYI

---------- Forwarded message ----------
From: Ruben S. Montero <rsmontero at opennebula.org>
Date: Wed, May 23, 2012 at 11:53 PM
Subject: Re: [one-users] Contextualization
To: "Stantz, Brent - GS" <Brent.Stantz at exelisinc.com>
Cc: "users at lists.opennebula.org" <users at lists.opennebula.org>


Hi

Currently, we have $UID to get the id of the owner. If you really need the
name then you have to use the whole template. This will give you the whole
user information in XML encoded using base64. A simple python/ruby script
can extract the data you need in the guest. Example

CONEXT = [
USER_UID=$UID,
USER_INF="$USER[TEMPLATE]"
]

This will give you a context.sh script with the following contents

USER_UID="0",
USER_INF="PFVTRVI+PElEPjA8L0lEPjxHSUQ+MDwvR0lEPjxHTkFNRT5vbmVhZG1pbjwvR05BTUU+PE5BTUU+cnViZW48L05BTUU+PFBBU1NXT1JEPmMyNDc4M2JhOTZhMzU0NjQ2MzJhNjI0ZDlmODI5MTM2ZWRjMDE3NWU8L1BBU1NXT1JEPjxBVVRIX0RSSVZFUj5jb3JlPC9BVVRIX0RSSVZFUj48RU5BQkxFRD4xPC9FTkFCTEVEPjxURU1QTEFURT48L1RFTVBMQVRFPjwvVVNFUj4="

USER_INF is the base64 encoding for

"<USER><ID>0</ID><GID>0</GID><GNAME>oneadmin</GNAME><NAME>ruben</NAME>PASSWORD>c24783ba96a35464632a624d9f829136edc0175e</PASSWORD><AUTH_DRIVER>core</AUTH_DRIVER><ENABLED>1</ENABLED><TEMPLATE></TEMPLATE></USER>"

NOTE: You can add any other user information and get that from the guest.
Specially you may be interested in adding a public SSH key to your users
and copy it to the authorized_keys file. The SSH key can be extracted under
USER/TEMPLATE/ as in the previous example

Hope this helps. More info at [1]

Cheers

Ruben

[1] http://www.opennebula.org/documentation:rel3.4:template#context_section

On Wed, May 23, 2012 at 7:28 PM, Stantz, Brent - GS <
Brent.Stantz at exelisinc.com> wrote:

>  Hi,
>
>   I am trying to configure my VM systems to use the “owners” name as the
> username, I have not been able to ‘retrieve’ the proper username.  Please
> provide the correct variable to give such information.
>
> Thank you,
>
> *Brent Stantz*
> *Software Engineering*
> *Geospatial Systems*
>
> *ITT Exelis*
> *Rochester, NY 14606-0488*
>
>
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-- 
Dr. Ruben Santiago Montero
Associate Professor (Profesor Titular), Complutense University of Madrid

URL: http://dsa-research.org/doku.php?id=people:ruben
Weblog: http://blog.dsa-research.org/?author=7



-- 
Ruben S. Montero, PhD
Project co-Lead and Chief Architect
OpenNebula - The Open Source Solution for Data Center Virtualization
www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
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