The image shows a diagram of the destination environment for the sample application.

From left to right, the image shows the HTML/JavaScript REST client running on a laptop. The laptop connects to the Internet and then to the Oracle Cloud Infrastructure (OCI) through a Web Application Firewall (WAF). The OCI diagram has two outer containers, the OCI region and the OCI VCN. In the OCI VCN, load balancers are shown directing traffic to an OKE Kubernetes cluster. Inside that cluster is our sample application running in Docker containers which are managed by the cluster. The application also connects to an Oracle Database where data is stored.