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Hi Sean, Rodolfo,

Thanks for your answers.
I will try to do the patch next week so these parameters are included in the nova config sample and documentation.

About the isolated_vif params. It seems like a security enhancement to set it to True when using ovs? Do you confirm that?

Regards,
Arnaud

Le 4 mars 2022 18:57:40 GMT+01:00, Sean Mooney <smooney at redhat.com> a écrit :
>On Fri, 2022-03-04 at 18:33 +0100, Rodolfo Alonso Hernandez wrote:
>> Hi Arnaud:
>> 
>> Those parameters should be set in nova.conf, in the "os_vif_XXX" section
>> [1].
>> 
>> "network_device_mtu" is deprecated. The interface MTU is retrieved from the
>> network MTU. "ovs_vsctl_timeout" is deprecated too, we don't use vsctl
>> commands anymore.
>actully we do use vsctl at least in ci but it is deprecated.
>we are currently using it in ci to workaround a bug in the ovs python bindings.
>
>after the RC period is clear i might revert that since i think the ovs python bidnign are
>fixed but im not sure they are fixed in ubuntu 20.04 so i dont want to regress the ci stablity
>currently by reverting to the native bindings.
>
>https://review.opendev.org/c/openstack/devstack/+/796826
>
>ill update https://github.com/openstack/devstack/blob/master/lib/os-vif#L6 to native
>once we are sure https://bugs.launchpad.net/os-vif/+bug/1929446 is fixed in the ovs python bindings.
>
>
>> 
>> Maybe Nova folks can extend my answer.
>> 
>> Regards.
>> 
>> [1]
>> https://github.com/openstack/nova/blob/50fdbc752a9ca9c31488140ef2997ed59d861a41/releasenotes/notes/libvirt-uses-os-vif-plugins-31a0617de0c248b9.yaml
>> 
>> 
>> On Fri, Mar 4, 2022 at 6:18 PM Arnaud Morin <arnaud.morin at gmail.com> wrote:
>> 
>> > Hey all,
>> > 
>> > When I take a look at [1], I can see some parameters, such as
>> > network_device_mtu, isolate_vif, etc.
>> > 
>> > As far as I can tell, nova is using these params when plugging the port
>> > in OVS (if using OVS as ml2 plugin of course).
>> > 
>> > But I cannot find the config params in the documentation: [2]
>> > 
>> > Am I missing something?
>> > 
>> > Cheers,
>> > Arnaud.
>> > 
>> > [1] https://github.com/openstack/os-vif/blob/master/vif_plug_ovs/ovs.py
>> > [2] https://docs.openstack.org/nova/latest/configuration/config.html
>> > 
>> > 
>
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