[one-users] Using USER template variable in VM Template

Tue Aug 28 08:05:53 PDT 2012

Hi

There is a patch at [1]. You can apply it to OpenNebula3.6, recompile and
reinstall or just copy the oned binary.

Cheers

Ruben

[1] http://dev.opennebula.org/issues/1428

On Tue, Aug 28, 2012 at 5:23 AM, Hyun Woo Kim <hyunwoo at fnal.gov> wrote:

> Dear Ruben,
>
> Your answer below about using oneuser update to modify <TEMPLATE/> of
> user's information
> works perfectly for me(us)!!
> Thank you very much for your kind and persistent answers.
>
> Also, please let me know of the patch that you mentioned will be available
> in a few days.
> (about a new variable for user name similar to UID..)
> That will be another solution..
>
> Thanks again.
> Hyunwoo
> FermiCloud Project
>
>
>
> =====================
> Question 2.
> Are SSH_KEY and TEMPLATE the only two <user_attributes>s available
>  for $USER? or is there more? if so, what are they?
> why can I not use NAME like
> CONTEXT = [
> username = $USER[NAME, USER_ID=$VID]
> ]
>
>
> 1.- Templates are free form, you can add anything you want. Please try, in
> the command line:
>
> >oneuser update
> ...
> This will open your EDITOR, using the standard syntax you can add any
> variable, e.g.:
> NAME=my_user_name
> PASSWORD=mypass
> SSH_KEY=AHxa245...
> LOGIN=my_login
>
> Then simply add to the VM template:
>
> CONTEXT = [
> username = $USER[NAME]
> login = $USER[LOGIN]
> ssh = $USER[SSH_KEY]
> ]
>
> 2.- You do not need to "qualify" the USER, it will always refer to the
> user creating the VM. Note that otherwise that will be a security hole, as
> you could access other user data.
>
> 3.- There are no variables in the user template by default. Note the
> <TEMPLATE/> element in oneuser show -x, before and after adding template
> variables with oneuser update.
>
> ________________________________________
> From: Ruben S. Montero [rsmontero at opennebula.org<mailto:
> rsmontero at opennebula.org>]
> Sent: Sunday, August 26, 2012 4:33 PM
> To: Hyun Woo Kim
> Cc: users at lists.opennebula.org<mailto:users at lists.opennebula.org>
> Subject: Re: [one-users] Using USER template variable in VM Template
>
> Hi
>
> If you look at the output of the XML, -x option, there is something like:
>
>   <USER>
>     <ID>6</ID>
>     <GID>1</GID>
>     <GNAME>users</GNAME>
>     <NAME>demo</NAME>
>     <PASSWORD>89e495e7941cf9e40e6980d14a16bf023ccd4c91</PASSWORD>
>     <AUTH_DRIVER>core</AUTH_DRIVER>
>     <ENABLED>1</ENABLED>
>     <TEMPLATE/>
>     <DATASTORE_QUOTA/>
>     <NETWORK_QUOTA/>
>     <VM_QUOTA/>
>     <IMAGE_QUOTA/>
>   </USER>
>
> You can access to anything inside the <TEMPLATE/> element, empty by
> default.
>
> There is no direct way to include that information in a VM Template.
> This can be done at the API level with some hacking. (Unless you add
> NAME to TEMPLATE)
>
> The original set of pre-defined variables UID, TEMPLATE aren't
> obviously up-to-date. I've filled an issue to address this for the
> next release [1].
>
> Thanks
>
> Ruben
>
> [1] http://dev.opennebula.org/issues/1428
>
> On Sun, Aug 26, 2012 at 11:07 PM, Hyun Woo Kim <hyunwoo at fnal.gov<mailto:
> hyunwoo at fnal.gov>> wrote:
> > Hi,
> >
> > Thanks very much for the response.
> >
> > Actually, your answer seems a bit different from what the manual says
> > and what I observe.
> >
> > I observe that the "USERS" actually have "TEMPLATE" attribute
> > which returns the contents of "user_pool" in the database
> > (We are using MySQL).
> > The contents of MySQL "user_pool" contain NAME field.
> > I thought these fields in DB and <user_attribute>s of USER template
> > somehow are related..
> >
> > Let me simplify my original question.
> > Is there anyway to fetch the NAME field of the DB for the
> > user who does "onetemplate instantiate"..?
> >
> > Thanks,
> > Hyunwoo
> >
> >
> >
> > Current version of OpenNebula can only access template variables from
> > users, or networks. By default users have an empty template, so there
> > is no NAME variable unless you define it, e.g. oneuser update. About
> > $UID, this variable is predefined so the OpenNebula core it is not
> > actually accessing the user information but that stored in the VM.
> >
> > Cheers
> >
> > Ruben
> >
> > On Fri, Aug 24, 2012 at 10:37 PM, Hyun Woo Kim <hyunwoo at fnal.gov<mailto:
> hyunwoo at fnal.gov>> wrote:
> >> Dear Developers,
> >>
> >> I want to define a variable "username" in CONTEXT
> >> and replace it by a real user name who does
> >> onetemplate instantiate
> >>
> >> The CONTEXT section of my VM Template looks like the following;
> >> CONTEXT = [
> >> username    = "$USER[NAME]"
> >> ]
> >>
> >> I am following the instruction in
> >> http://opennebula.org/documentation:archives:rel3.2:template
> >> which says at the bottom ;
> >> ...
> >> Using User template variables
> >> $USER[ <user_attribute> ]: Any single value variable in the user
> template
> >> for example: ssh_key = "$USER[SSH_KEY]"
> >> The user_attribute can be TEMPLATE to include…
> >> …..
> >>
> >>
> >> So, I thought NAME can be one possible <user_attribute> like TEMPLATE,
> >> but this does not work..
> >> I even tried
> >> username    = "$USER[NAME, USER_ID=$UID]"
> >> username    = "$USER[NAME, ID=$UID]"
> >> username    = "$USER[NAME, USER_ID=2]"
> >> username    = "$USER[NAME, ID=2]"
> >> All fail..
> >>
> >> By the way,
> >> username    = "$UID" works and username is assigned my correct user id
> >>
> >> What am I doing wrong here?
> >>
> >>
> >> Thank you.
> >> Hyunwoo
> >> _______________________________________________
> >> Users mailing list
> >> Users at lists.opennebula.org<mailto:Users at lists.opennebula.org>
> >> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
> >>
> >
> >
> >
> > --
> > Ruben S. Montero, PhD
> > Project co-Lead and Chief Architect
> > OpenNebula - The Open Source Solution for Data Center Virtualization
> > www.OpenNebula.org<http://www.OpenNebula.org> | rsmontero at opennebula.org
> <mailto:rsmontero at opennebula.org> | @OpenNebula
>
>
>
> --
> Ruben S. Montero, PhD
> Project co-Lead and Chief Architect
> OpenNebula - The Open Source Solution for Data Center Virtualization
> www.OpenNebula.org<http://www.OpenNebula.org> | rsmontero at opennebula.org
> <mailto:rsmontero at opennebula.org> | @OpenNebula
>
>
>
> --
> Ruben S. Montero, PhD
> Project co-Lead and Chief Architect
> OpenNebula - The Open Source Solution for Data Center Virtualization
> www.OpenNebula.org<http://www.OpenNebula.org> | rsmontero at opennebula.org
> <mailto:rsmontero at opennebula.org> | @OpenNebula
>

-- 
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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