[one-users] Dynamic IP Leases and NIC hotplug on Running VM

[sebgoa]

Hi Simon,

If I understand your request properly, you are actually referring to the Amazon Elastic IP behavior.
This allows you to lease an IP, associate it with a running VM, de-associate it, and release the IP (if you want to).

We recently developed a prototype to enable this in opennebula, you may be interested by this post in the blog:
http://blog.opennebula.org/?p=2695

And you may want to check the screencast:
http://www.youtube.com/watch?v=q1I4cR69sW8
and see if that's what you are looking for.

Thanks,

-sebastien

On Mar 23, 2012, at 11:55 AM, Simon Boulet wrote:

> Hi Shank, Carlos,
> 
> @Shank I dont see why this breaks anything. Users can already submit
> VM with multiple NICs. Plus I believe NIC hotplug is supported by most
> hypervisors out there. Say I run a load balancer VM, I can't afford to
> have to restart the VM to add NIC/ IP address. I know I can simply
> hotplug the NIC from the host but the problem is that OpenNebula
> handles the IP Leases. I need to a way to tell OpenNebula that a new
> IP address is used /reserved by the VM.
> 
> @Carlos
> 
> I would be more than happy to help. Here is what I believe needs to be
> implemented:
> 
> 1- Implementing two new calls in the oned XML RPC API (on.vn.assign
> and on.vn.unassign)
> 
> Standard OpenNebula checks / assignment ie. make sure the user has
> access to the Virtual Network and that an IP address is available.
> 
> 2- Implement 2 new VNM scripts ex. addnic and remnic
> 
> There could be several ways of implementing those scripts depending of
> the hypervisors (VNM driver of the host). The script would receive
> sufficient information to know to which VM the new NIC is to be
> attached ex. : base64 encoded XML containing the new <NIC>..</NIC> and
> the VMID as a second parameter?
> 
> 3- Implement "assign" and "unassign" calls in onevnet cli and Sunstone.
> 
> I believe we have sufficient knowledge and time here to add this
> feature (the oned XML-RPC call, the custom VNM we use here, and could
> do the Sunstone part too... would need someone for the cli work as
> well as for adding the addnic and remnic to the different VNMs).
> 
> I need confirmation this is how we should be implementing it, and
> maybe some help through the process. Feel free to contact me directly,
> or direct me to another mailing-list for development work.
> 
> Simon
> 
> 2012/3/23 Carlos Martín Sánchez <cmartin at opennebula.org>:
>> Hi Simon,
>> 
>> That functionality is not available in OpenNebula at the moment, but it is
>> something we have in mind to be included at some point in the mid or
>> long-term.
>> 
>> I'm not sure if your email is a feature request, or you were asking for
>> comments on how to implement it. We can give you support if that is the
>> case.
>> 
>> Regards
>> --
>> Carlos Martín, MSc
>> Project Engineer
>> OpenNebula - The Open-source Solution for Data Center Virtualization
>> www.OpenNebula.org | cmartin at opennebula.org | @OpenNebula
>> 
>> 
>> 
>> On Thu, Mar 22, 2012 at 10:38 PM, Simon Boulet <simon at nostalgeek.com> wrote:
>>> 
>>> Hello
>>> 
>>> I'd like to be able to Add IP addresses (Leases) to running VM (hot
>>> plugging new NIC).
>>> 
>>> Is this something possible? From what I understand this is not
>>> possible (as of OpenNebula 3.3). A VM would have to be destroyed and a
>>> new template submitted.
>>> 
>>> My thinking was something like adding a one.vn.assign API call and an
>>> "assign" option under the Lease Management page (on Sunstone). Then a
>>> window would come up where you can pick an existing VM. However, I am
>>> not sure how this would interact with the hypervisor, perhaps a call
>>> to a new vmm script (for hypervisors that can do NIC hotplug).
>>> 
>>> Perhaps an "unassign" call would make sense too (hot remove of IP Leases).
>>> 
>>> What are your thoughts?
>>> 
>>> Thanks
>>> 
>>> Simon
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opennebula.org
>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>> 
>> 
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> Users at lists.opennebula.org
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