This image shows a multiservices topology on nodes in Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE) on Oracle Cloud Infrastructure (OCI).

The region provides 1 availability domain with 3 fault domains. The region has a single virtual cloud network (VCN) with 2 public subnets A and B.

External users connect to the VCN by using an internet gateway. Incoming traffic is handles by a load balancer in one fault domain in subnet A.

The load balancer passes requests to nodes in an OKE cluster with nodes in each of the three fault domains. Each of the nodes runs an individual service (Auth Service, User Service, Analysis Service).

The applications are supported by Oracle Autonomous Transaction Processing at the regional level.