port Groups (Bonds) Configuration in Openstack Baremetal Provisioning.

Lokendra Rathour lokendrarathour at gmail.com
Sun Dec 13 18:50:15 UTC 2020

HI Julia,
Thanks for your email. I have replied inline with [loke] tag.

Will try the shared inputs and will let you know.


On Mon, 14 Dec 2020, 00:07 Julia Kreger, <juliaashleykreger at gmail.com>

> On Sat, Dec 12, 2020 at 8:39 PM Lokendra Rathour <
> lokendrarathour at gmail.com> wrote:
>> Thanks Julia,
>> My aim here to chk the for any kind of port binding or grouping inorder
>> to achived redundancy at the baremetal port level.
>> So scenarion as desired or which i am trying to bring up is :
>> I have an openstack controller computer setup(simple openstack)
>> On top of this I am provisioning baremetal node . On this baremetal node
>> i have one cable connected to one of the port from the switch. We inform
>> neutron about it before we go for server create. It works and we are able
>> to see the nodes getting added.
> Added to what?
[Loke] - added to the environment of openstack as a baremetal server. As
said it works well. New that we are looking for is what you have answered i
think. Will try the same and let you know.

> So on the same server we are trying to enable port binding , which we are
>> not able to do it.
> So you would need a second cable attached to the same switch. If already
> connected, the node, and the switch side is pre-configured, you should:
> 1) Create the portgroup definition in ironic
> 2) create/update the physical ports in ironic attached to the portgroup.
> If using cloud init which shall be passed during the server created then
>> what can be the standard configuration for it ? Or how to move forward?
> When ironic goes to perform the port bind, it provides the binding
> information to Neutron. This behavior is slightly different between the
> ironic node network_interface driver, ``flat`` or ``neutron``. You likely
> will be using flat if your portgroup is pre-configured. Some Fujitsu[0]
> folks put together a slide deck to share back in 2017, which walks through
> the steps. The commands are a little outdated, but you will hopefully get
> the idea for a static configuration.
>  [0]: https://www.slideshare.net/vietstack/portgroups-support-in-ironic
>> -lokendra
>> On Sun, 13 Dec 2020, 05:28 Julia Kreger, <juliaashleykreger at gmail.com>
>> wrote:
>>> Greetings Lokendra,
>>> Portgroups are a bit of a complex item, unfortunately.
>>> They hold a dual purpose of representing what is desired and what
>>> exists. The delineation between those states largely being what tooling is
>>> being loaded into Neutron in the form of a portgroup supporting ML2
>>> drivers. If portgroups are pre-configured on a switch side, they can be
>>> represented in Ironic and the virtual port (VIF) binding information can be
>>> transmitted to Neutron with this information. If an ML2 driver is loaded
>>> that understands the portgroup configuration, then it can also configure
>>> the switch to represent this port.
>>> I can't tell if you're asking about pre-configured bonds or if you're
>>> asking about ML2 enabled bonds. I don't know if StarlingX ships with/uses
>>> any of the Neutron ML2 which support such functionality, and that may be a
>>> good question for the StarlingX community specifically. If you're just
>>> trying to express pre-configured portgroups, it looks like Cloud-init since
>>> 0.7.7 has apparently supported parsing and setting up the portgroup within
>>> the deployed operating system. That is, if it is present in that operating
>>> system image you deploy. Please note, caution should be taken with LACP[0]
>>> and various switch configuration tunables. They make network booting a bit
>>> complicated and each switch vendor has somewhat different behavior and
>>> configuration available to help navigate such situations.
>>> -Julia
>>> [0]
>>> https://docs.openstack.org/ironic/latest/admin/troubleshooting.html#why-does-x-issue-occur-when-i-am-using-lacp-bonding-with-ipxe
>>> On Sat, Dec 12, 2020 at 11:28 AM Lokendra Rathour <
>>> lokendrarathour at gmail.com> wrote:
>>>> Hi ,
>>>> Any support here.
>>>> Any input would help.
>>>> Best Regards,
>>>> Lokendra
>>>> On Fri, 11 Dec 2020, 18:10 Lokendra Rathour, <lokendrarathour at gmail.com>
>>>> wrote:
>>>>> Hello,
>>>>> I am trying to install a baremetal on existing openstack setup. During
>>>>> the time of installation, is it possible to have bonds already setup when
>>>>> the baremetal nodes comes up.
>>>>> I was trying to work on the :
>>>>> Port groups configuration in the Bare Metal service
>>>>> *Documents referred :*
>>>>>    1.
>>>>>    https://docs.openstack.org/ironic/pike/admin/portgroups.html#:~:text=A%20port%20group%20can%20also,attached%20to%20the%20port%20group
>>>>>    .
>>>>>    2.
>>>>>    https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/14/pdf/bare_metal_provisioning/Red_Hat_OpenStack_Platform-14-Bare_Metal_Provisioning-en-US.pdf
>>>>> *Setup used:*
>>>>> Baremetal on StarlingX Setup :
>>>>> https://docs.starlingx.io/deploy_install_guides/r4_release/bare_metal/ironic_install.html
>>>>> ΒΆ
>>>>> <https://docs.openstack.org/ironic/queens/admin/portgroups.html#port-groups-configuration-in-the-bare-metal-service>
>>>>> --
>>>>> ~ Lokendra
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