Open Stack

Hi,

I am from Zun team. The goal is to fix it in "C" release. I will keep the
status updated in this ticket: https://bugs.launchpad.net/zun/+bug/2007142
. Sorry for all the inconvenience.

Best regards,
Hongbin

On Thu, Sep 14, 2023 at 6:56 PM Jan Gutter <openstack at jangutter.com> wrote:

> Hi folks,
>
> In yesterday's Kolla IRC meeting we discussed the path forward for Zun
> [1] and came to the conclusion that it might be better for all
> involved to drop support for Zun for the 2023.1 release until it can
> be updated to support the necessary dependencies. More specific
> details at the end of the message.
>
> With this in mind, the plan is to start this process in a week from
> now, unless a better solution is presented. There is still some time
> for discussion, please don't hesitate!
>
> There are two paths forward after this:
>
> If Zun can be updated to support the dependencies during the
> maintenance timeframe of 2023.1, then support would be restored.
>
> If no support is available at the time Caracal releases, however, it
> will be considered for removal in kolla and kolla-ansible.
>
> What this means:
>
> Kolla-ansible operators currently running Zun should hold off
> migration to 2023.1. Any development help would of course be
> appreciated. Please coordinate with the Zun project to help with
> development.
>
> Details on the dependency problems:
>
> * Currently, Zun has an external dependency on Docker 20.x, and uses a
> feature that has been removed in later versions of Docker.
> * This Docker feature also relies on an older version of etcd (3.3)
> * The mitigation [2] is to pin to the old versions of Docker and etcd,
> but this is not possible with Debian Bookworm hosts.
>
> Why this is a problem in Kolla-ansible (and Kolla):
>
> * This can't easily be solved by vendoring in an older version of
> etcd: the migration path it introduces to operators would incur a
> significant amount of risk.
> * Host level involvement is also particularly painful, the host
> version of Docker needs to connect to the etcd service running in the
> containers.
> * Even though the containers can be kept buildable and the
> configuration and inventory settings could be maintained, a working
> setup is not testable in CI.
>
> Thanks very much for everyone's patience, contributions and time!
>
> [1]:
> https://meetings.opendev.org/meetings/kolla/2023/kolla.2023-09-13-13.00.log.html
> [2]: https://bugs.launchpad.net/zun/+bug/2007142
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.openstack.org/pipermail/openstack-discuss/attachments/20230915/627e9d00/attachment.htm>