port Groups (Bonds) Configuration in Openstack Baremetal Provisioning.

Julia Kreger juliaashleykreger at gmail.com
Sat Dec 12 23:58:42 UTC 2020

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.



On Sat, Dec 12, 2020 at 11:28 AM Lokendra Rathour <lokendrarathour at gmail.com>

> 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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