Open Stack

 ---- On Fri, 08 Sep 2023 05:19:13 -0700  Takashi Kajinami  wrote --- 
 > Let me bump this old thread because we still need some follow-up about the retirement of os-win.
 > I noticed that some projects have not yet deprecated the implementations dependent on os-win.I submitted a few patches to make these implementations deprecated so that we can smoothly remove thesein the future. https://review.opendev.org/c/openstack/cinder/+/894237 https://review.opendev.org/c/openstack/glance/+/894236 https://review.opendev.org/c/openstack/ceilometer/+/894296It'd be nice if the relevant teams can review these.
 > 
 > My remaining question is whether we should mark all implementations for Windows support, which are not directlydependent on os-win[1]. Technically we can go through individual projects and add warning logs and release notesabout the deprecation. However I'm not too sure if that's worth the effort. If we can agree that we remove supportfor running OpenStack on Windows Operating System at a specific release, then I tend to leave the ones independentfrom os-win, unless it has any impact on user-facing items like config options[1].
 > I'd like to hear any thoughts about this plan, as well as any target release to remove Windows "host" support globallyfrom OpenStack (maybe after 2024.1 release ?).

Thanks for marking a few of the Windows support things as deprecated. This is the right direction for at least where it
depends on os-win. I have started completing the os-win retirement and deps[1]. But we need to add a deprecation
warning in one cycle and then remove it in a later one (like you are doing in the mentioned changes). We did the
same in the Nova Hyper-V driver, which was marked deprecated in the 2023.1 cycles, and I am proposing it to be
removed in the next cycle, 2024.1[2].

For the Windows feature other than os-win dependencies, it is up to the projects, and if they can still
support and test those without 3rd party CI, then it is okay to keep it. This applies to any other distro-specific
features also where they might be supported by a few projects but not all. But they should go through the
deprecation phase warning even they are not tested so that users get the notification. 

[1] https://review.opendev.org/q/+topic:retire-winstackers
[2] https://review.opendev.org/c/openstack/nova/+/894466

-gmann

 > 
 > [1] Some examples https://github.com/openstack/ceilometer/blob/d31d4ed3574a5d19fe4b09ab2c227dba64da170a/ceilometer/cmd/polling.py#L95-L96 https://github.com/openstack/nova/blob/master/nova/virt/disk/api.py#L624-L625
 > [2] event_log option in oslo.log is one good example https://review.opendev.org/c/openstack/oslo.log/+/894235
 > On Sat, Jun 24, 2023 at 7:50 AM Ghanshyam Mann gmann at ghanshyammann.com> wrote:
 > As there is no volunteer to maintain this project, I have proposed the retirement
 > 
 > - https://review.opendev.org/c/openstack/governance/+/886880
 > 
 > -gmann
 > 
 >  ---- On Thu, 13 Apr 2023 07:54:12 -0700  James Page  wrote --- 
 >  > Hi All
 >  > 
 >  > As announced by Lucian last November (see [0]) Cloudbase Solutions are no longer in a position to maintain support for running OpenStack on Windows and have also ceased operation of their 3rd party CI for the windows support across a number of OpenStack projects.
 >  > This situation has resulted in the Winstackers project becoming PTL-less for the 2023.2 cycle with no volunteers responding to the TC's call to fill this role and take this feature in OpenStack forward (see [1]).
 >  > This is the final call for any maintainers to step forward if this feature is important to them in OpenStack.
 >  > The last user survey in 2022 indicated that 2% of respondents were running on Hyper-V so this might be important enough to warrant a commitment from someone operating OpenStack on Windows to maintain these features going forward.
 >  > Here is a reminder from Lucian's original email on the full list of projects which are impacted in some way: * nova hyper-v driver - in-tree plus out-of-tree compute-hyperv driver* os-win - common Windows library for Openstack* neutron hyperv ml2 plugin and agent* ovs on Windows and neutron ovs agent support* cinder drivers - SMB and Windows iSCSI* os-brick Windows connectors - iSCSI, FC, SMB, RBD* ceilometer Windows poller* manila Windows driver* glance Windows support* freerdp gateway
 >  > The lack of 3rd party CI for testing all of this really needs to be addressed as well.
 >  > If no maintainers are forthcoming between now and the next PTG in June the TC will need to officially retire the project and start the process of removing support for Windows across the various projects that support this operating system in some way - either directly or through the use of os-win.
 >  > For clarity this call refers to the use of the Hyper-V virtualisation driver and associated Windows server components to provide WIndows based OpenStack Hypervisors and does not relate to the ability to run Windows images as guests on OpenStack.
 >  > Regards
 >  > James
 >  > [0] https://lists.openstack.org/pipermail/openstack-discuss/2022-November/031044.html[1] https://lists.openstack.org/pipermail/openstack-discuss/2023-March/032888.html
 > 
 >