[openstack-dev] [Kuryr] Docker failed to add an existed network with GW interface already created

毛立平 maoliping455 at 163.com
Fri May 27 05:07:15 UTC 2016

Hi Irena,

Thanks for your comments.

Currently, kuryr will create gw port with owner kuryr:container, but this GW can't work obviously.
it can be modified to create gw port with owner network:router_interface, but seems like CNM module
do not have action can be map with attach GW with vrouter.

Do we have any reason why we need just create a neutron port but do not use it(attach to vrouter)?

So I still think we can leave it in neutron router-interface-add / router-interface-delete .
 what do you think?

Liping Mao

At 2016-05-26 20:03:24, "Irena Berezovsky" <irenab.dev at gmail.com> wrote:

Hi Liping Mao,

On Thu, May 26, 2016 at 12:31 PM, Liping Mao (limao) <limao at cisco.com> wrote:
Hi Vikas, Antoni and Kuryr team,

When I use kuryr, I notice kuryr will failed to add an existed
network with gateway interface already created by neutron[1][2].

The bug is because kuryr will create a neutron port for gw
port in ipam_request_address.

I think kuryr should not do actual create neutron gw port at all.
Because CNM module do not have concept map with Neutron vRouter.
Till now, user have to use neutron api to attach GW port in
private network with vRouter. So I think the Kuryr should not
actually create GW port.

I think it possible to define via kuryr configuration file if kuryr should create or not gw port. Kuryr already does it for DHCP port.
What do you think? Thanks for any comments.

[1] https://bugs.launchpad.net/kuryr/+bug/1584286
[2] https://review.openstack.org/#/c/319524/4

Liping Mao

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