[Rdo-list] overcloud update [external - float interface name]

Marius Cornea marius at remote-lab.net
Sat Oct 17 12:33:35 UTC 2015


On Sat, Oct 17, 2015 at 8:58 AM, AliReza Taleghani
<shayne.alone at gmail.com> wrote:
> I have been deployed my overcloud via:
> ###
> openstack overcloud deploy --compute-scale 4 --templates --compute-flavor
> compute --control-flavor control
> ###
>
> the baremetal server interfaces naming is as enoX X == {1,2,3,4}
> I also have connected all baremetal servers eno1 directly into undercloud
> eth1 as management zone
> Now I wana create external network for float ip assignment via:
> ###
> neutron net-create ext-net --router:external --provider:physical_network
> datacentre --provider:network_type flat
> ###
>
>
> the datacentre is directlly connected to the public ip address router, but
> the problem is that I don't have such and interface name in OS level...

Datacentre is a mapping which points to br-ex ovs bridge. By default I
believe the provisioning network nic gets bridged to br-ex.  If you
want to have another interface bridged to br-ex you just need to add
the following argument to the deploy command:

--neutron-public-interface eno2

or

--neutron-public-interface nic2
assuming that eno2 is the 2nd nic which has an active cable connected

You should also check the network isolation feature for more advanced
networking configurations:
https://repos.fedorapeople.org/repos/openstack-m/rdo-manager-docs/liberty/advanced_deployment/network_isolation.html

> is seem's I should have to solution:
>
> 1- rename Controller eno2 -> datacentre
> 2- update overcloud and don't know how but force it to know [ eno2 ] instead
> of [ datacentre ]
>
> :-?
>
> solution 1 ( os level interface renaming ) seems to be a bit distructive...
> cos centos wiki's told we should edit kernel param at grub and revert to old
> interface naming also stick to udev rules and alike...
>
> I pereferer to know how can I update my overcloud to accept eno2 instead of
> datacentre?
>
> thanks
>
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