How to configure interfaces in CentOS 8.3 for OSA installation?

Hello, I am trying to install OpenStack by referring following guides = 1) https://docs.openstack.org/project-deploy-guide/openstack-ansible/latest/dep... 2) https://docs.openstack.org/openstack-ansible/victoria/user/test/example.html In link number 2, there is a step to configure interfaces. In CentOS 8 we don't have a /etc/network/interfaces file. Which interface file should I configure? Or do I need to create all virtual int's manually using nmcli? Pls suggest thanks. Regards, Amey.