This image shows an architectural diagram of a microservices deployment. There's an Oracle Cloud Region with a Registry and Object Storage. The Availabiltiy Domain contains three subnets within a VCN. The Load Balancer is located in a regional public subnet. The application tier is located inside an Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE) in Regional Private Subnet A. The database tier is located in Regional Private Subnet B. Asynchronous Transaction Messaging occurs between the two Autonomous Transaction Processing instances (ATP 1 and ATP 2).