[ovirt-devel] FC27 updates broken for ovirt-4.2

[Cole Robinson]

On 02/27/2018 08:03 AM, Dan Horák wrote:
> On Tue, 27 Feb 2018 13:54:06 +0100
> Viktor Mihajlovski <mihajlov at linux.vnet.ibm.com> wrote:
> 
>> On 27.02.2018 13:35, Nir Soffer wrote:
>>> בתאריך יום ג׳, 27 בפבר׳ 2018, 13:25, מאת Dan Horák ‏<dan at danny.cz>:
>>>
>>>> On Tue, 27 Feb 2018 10:13:15 +0100
>>>> Viktor Mihajlovski <mihajlov at linux.vnet.ibm.com> wrote:
>>>>
>>>>> On 27.02.2018 01:26, Nir Soffer wrote:
>>>>>> בתאריך יום ב׳, 26 בפבר׳ 2018, 22:10, מאת Yaniv Kaul
>>>>>>  ‏<ykaul at redhat.com>:
>>>>>>
>>>>>>> On Mon, Feb 26, 2018 at 7:17 PM, Viktor Mihajlovski <
>>>>>>> mihajlov at linux.vnet.ibm.com> wrote:
>>>>>>>
>>>>>>>> I just tried to update the ovirt packages on my FC27 host, but
>>>>>>>> failed due to https://gerrit.ovirt.org/#/c/87628/
>>>>>>>>
>>>>>>>> vdsm now requires libvirt >= 3.10.0-132 but Fedora 27 has only
>>>>>>>> 3.7.0-4 the moment.
>>>>>>>>
>>>>>>>> It's generic Fedora 27, but since I run on s390, cross-posting
>>>>>>>> to s390 list.
>>>>>>>>
>>>>>>>> I guess there's good reason to require libvirt 3.10. Is there
>>>>>>>> any chance that we can get libvirt updated for Fedora 27?
>>>>>>>>
>>>>>>>
>>>>>>> Perhaps use the virt-preview[1] repo for now?
>>>>>>>
>>>>>>
>>>>>> Yes, we require virt-preview for Fedora. This is why that patch
>>>>>> did not fail in the CI.
>>>>> Makes sense, unfortunately virt-preview doesn't contains s390
>>>>> binaries at this point in time. Would be great if at least
>>>>> libvirt and qemu could be built for s390.
>>>>
>>>> looks like it's even x86_64 only, /me wonders what it would
>>>> require to offer other arches (aarch64, ppc64le, s390x) as well
>>>>
>>>
>>> If we need to support platform not supported in virt-preview, we
>>> need to chage the requirement so it is used only on x86_64.
>>>
>>> Victor, would you like to send a patch?
>> I believe there was a good reason to bump the libvirt requirement in
>> the vdsm package (some bugfix). Ideally, virt-preview should be build
>> for s390 as well.
>> If I'm not mistaking, the script
>> https://github.com/crobinso/build-fedora-virt-preview is used to build
>> the RPMs and populate the repository.
>>
>> Dan, Cole: what would it take to run this on the fedora-390 build
>> machine?
> 
> after a brief look the script needs to be made multi-arch-aware (it
> hard-codes x86_64 in some places), when it calls mock, and then it
> needs some HW (we have ppc64le and s390x even now, aarch64 might take
> a while), overall it looks doable to me. Cole, what do you think?
> 

I'm open to the idea in theory but in practice right now the script uses
mock locally so it's basically tied to the one build machine I use which
is x86. I have arm32 and aarch64 hardware locally but TBH I have very
little interest in running a build farm and dealing with all the issues
of connecting to remote machines, pulling down build output, etc. In
fact I've been meaning to move virt-preview to copr for a long while
which is going to tie it even deeper to x86, this would make
virt-preview easier to enable and let me scrap much of my custom code
for building/uploading repo contents.

We could re-implement it using koji scratch builds which have multiple
arch support nowadays but I did that in the past for x86 and I recall
feeling it was quite brittle, though I don't remember the details, maybe
it was just my implementation.

Thanks,
Cole