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...

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