Why does kolla deployment need two NICs?
I can't find much documentation explaining this and I am very new to using kolla. The quick start guide for setting up a deployment says each node needs two NICs.
I have three servers, a deploy host, a controller node, and a compute node. I am using kolla-ansible to do a simple multinode deployment on the controller node and compute node and I am wondering why each node needs two NICs?
What exactly does each NIC get used for during the deployment?
I believe the production architecture guide do tell you how each nic is used https://docs.openstack.org/kolla-ansi...