You can choose to set up a secure or non-secure deployment. A secure deployment involves making RESTful API calls and conveying trail data between the Distribution Server and Receiver Server, over SSL/TLS. You can use your existing wallets and certificates, or you can create new ones.
The instructions for securing deployments is in Setting Up Secure and Non-Secure Deployments in Using the Oracle GoldenGate Microservices Architecture.
Parent topic: Securing the Microservices Architecture