[FROG] Create a BGP topology to run using SDN Controller?

Hi, I want to create a simple BGP topology with SDN. Previously QUAGGA was used to create such topologies ( example: https://github.com/sdnds-tw/SDN-IP-Example-VM). Can you please guide me to create one. Simple network: Peer1(AS1)----R1(SDN Controller)-----Peer2(AS2) Thanks