Open Stack

I prefer to the option 2.

On Mon, Feb 26, 2018 at 4:39 PM, Jeffrey Zhang <zhang.lei.fly at gmail.com>
wrote:

> Recently, the Ubuntu jobs on pike branch are red[0]. With some debugging,
> i found it is caused by
> package dependency.
>
>
> *Background*
>
> Since we have no time to upgrade ceph from Jewel to Luminous at the end of
> pike cycle, we pinned
> Ceph to Jewel on pike branch. This works on CentOS, because ceph jewel and
> ceph luminous are on
> the different repos.
>
> But in Ubuntu Cloud Archive repo, it bump ceph to Luminous. Even though
> ceph luminous still exists
> on UCA. But since qemu 2.10 depends on ceph luminous, we have to ping qemu
> to 2.5 to use ceph Jewel[1].
> And this works since then.
>
>
> *Now Issue*
>
> But recently, UCA changed the libvirt-daemon package dependency, and added
> following,
>
>     Package: libvirt-daemon
>     Version: 3.6.0-1ubuntu6.2~cloud0
>     ...
>     Breaks: qemu (<< 1:2.10+dfsg-0ubuntu3.4~), qemu-kvm (<<
> 1:2.10+dfsg-0ubuntu3.4~)
>
> It requires qemu 2.10 now. So dependency is broken and nova-libvirt
> container is failed to build.
>
>
> *Possible Solution*
>
> I think there two possible ways now, but none of them is good.
>
> 1. install ceph Luminuous on nova-libvirt container and ceph Jewel in
> ceph-* container
> 2. Bump ceph from jewel to luminous. But this breaks the backport policy,
> obviously.
>
> So any idea on this?
>
> [0] https://review.openstack.org/534149
> [1] https://review.openstack.org/#/c/526931/
>
> --
> Regards,
> Jeffrey Zhang
> Blog: http://xcodest.me
>
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>


-- 
Shake Chen
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