[ovirt-users] [RFI] oVirt 3.6 Planning

Tue Sep 16 16:39:57 UTC 2014

On 16.09.2014 16:20, Antoni Segura Puimedon wrote:
>
> ----- Original Message -----
>> From: "Daniel Helgenberger" <daniel.helgenberger at m-box.de>
>> To: "Itamar Heim" <iheim at redhat.com>, "Livnat Peer" <lpeer at redhat.com>
>> Cc: users at ovirt.org
>> Sent: Monday, September 15, 2014 5:17:20 PM
>> Subject: Re: [ovirt-users] [RFI] oVirt 3.6 Planning
>>
>>
>> On 15.09.2014 15:23, Itamar Heim wrote:
>>> On 09/15/2014 04:10 PM, Daniel Helgenberger wrote:
>>>> Hello Livnat,
>>>> On 15.09.2014 14:46, Livnat Peer wrote:
>>>>> On 09/15/2014 03:15 PM, Daniel Helgenberger wrote:
>>>>>> Hello,
>>>>>> +1 for the iso uploader,
>>>>>> +1 for hostusb in UI
>>>>>> +1 EL 7 (on the roadmap anyway?)
>>>>>>
>>>>>> With hostusb some more host-dev virtualization could be added. Top of my
>>>>>> list is:
>>>>>> - SR-IOV
>>>>>> - NPV
>>>>>> - VFIO
>>>>>>
>>>>>> These things could be handled on cluster level - hypervisors need to
>>>>>> have the same hardware configuration anyway.
>>>>>>
>>>>>> Also, I think its time to add official support for OpenVswitch?
>>>>>>
>>>>> Are you looking for a specific functionality that is available via
>>>>> OpenVswitch (=OVS)?
>>>>> also we have the Neutron integration where we use OVS.
>>>> I think its sufficient to say OVS is a 'real' modern switch while plain
>>>> ol' linux bridge is not (so much any more). Of curse, maybe implementing
>>>> other things like macvtap and / or SR-IOV achieves just the same thing
>>>> (at least for me, as I then mange vlans/trunks and QoS, Spanning Tree
>>>> ect. on my switches).
>>>>
>>>> I know you can point on OpenStack integration because you get those
>>>> features for 'free' (see Ceph). But what about users like me who do not
>>>> wish / can / should implement the whole OpenStack but rather want to run
>>>> 'plain' oVirt?
>>> that's why we added in 3.5 a standalone, pre-configured, neutron virtual
>>> appliance so you won't need "all of openstack"?
>> Witch is certainly nice to have. But this is not the point. IMHO storage
>> and networking are core functions for a virtualization platform. And
>> such a platform will need to reflect the the progress made in general
>> and in particular by the hypervisor monitor (libvirt).
>> I am no developer and can hardly estimate the coding effort and do not
>> want you to redo already working things. But at least in case of Ceph
>> there is the API from libvirt, this is true for all the other things I
>> mentioned, in my naive view they are all variations of the hostusb hook.
>> Certainly I can deploy OVS myself and manage it from CLI, witch is what
>> I do now.
>> Could you share how you set it up, i.e., how you map networks to ovs
>> and everything that you configure? Depending on the size, making a
>> vdsm configurator for it would not be that difficult (and the fine
>> tunning could come with hooks).
Hello Antoni,
I see this was very misleading, sorry. With the phrase 'witch is what
I do now' I literally meant 'right now' witch is not (yet) oVirt/vdsm
but plain libvirt / virsh / virt-manager.

Since libvirt supports OVS directly; I just use <virtualport
type='openvswitch'/> in my network xml; then define VLANs and QoS with
ovs-vsctl cli. So I am used to OVS management and the flexibility it
offers.
I was also trying to mangle things in oVirt - but I could not get OVS to
work with oVirt managed bridges and gave up (since I cannot use such
'hacks' in production environments, company and my own policy).

Thanks!

PS: I hope I made myself clear in my last mails, OVS is not the 'killer'
feature witch decides whatever I deploy oVirt or not. Linux bridge and
libvirt network QoS are well tested. But I will surely miss some things
later on I cannot do directly. What I do with it and what I use it
currently for - please refer to my mail to Livnat.

>
>> But in the end, I would very much like to do this via one integrated
>> GUI, this is why I deploy oVirt (witch I see as a open source
>> counterpart to EXi. Esp.  the concept of one engine for management - but
>> not critical for running my VMs.)
>> Please allow me a 'heretic' question, will oVirt make itself obsoleted
>> in the future because all of the core functionality is moved to an
>> external provider? Is it better for my use case (small/medium business
>> and not in the telco sector) to deploy OpenStack in the first place and
>> not to use oVirt at all? ATM OpenStack seems to me like the literal
>> sledgehammer to crack a nut.
>>
>> Thanks,
>> <http://www.dict.cc/englisch-deutsch/to+take+a+sledgehammer+to+crack+a+nut.html>
>>
>>>> I think this might not be a desirable way to add / modernize features as
>>>> it creates a huge overhead (at least in my use case, medium business. I
>>>> did this once for Glance 'just' to get a way to more easily handle
>>>> import / export of image files, now I need to implement Neutron 'just'
>>>> to get OVS?).
>>>>
>>>> Don't get me wrong - OpenStack integration is a wonderful thing witch
>>>> leaves room for expansion - later on.
>>>>
>>>> Thanks!
>>>>>> Thanks,
>>>>>>
>>>>>> On 12.09.2014 14:23, Itamar Heim wrote:
>>>>>>> With oVirt 3.5 nearing GA, time to ask for "what do you want to see in
>>>>>>> oVirt 3.6"?
>>>>>>>
>>>>>>> Thanks,
>>>>>>>      Itamar
>>>>>>> _______________________________________________
>>>>>>> Users mailing list
>>>>>>> Users at ovirt.org
>>>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>>>>
>> --
>> Daniel Helgenberger
>> m box bewegtbild GmbH
>>
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-- 
Daniel Helgenberger
m box bewegtbild GmbH

P: +49/30/2408781-22
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