The image shows an OCI region that contains an availability domain consisting of two fault domains. There is a virtual cloud network (VCN), public subnet, and private subnet spanning the availability domain. The VCN connects to an internet gateway, and a network address translation (NAT) gateway. End users are outside of the OCI region, and connect with the OCI region through the internet gateway.

The public subnet is connected by a route table, and contains two load balancers: a primary load balancer and standby load balancer. The primary load balancer is located in the first fault domain, while the standby load balancer is located in the second fault domain.

The primary load balancer points to a web server within the first fault domain, and a web server inside the second fault domain. Both web servers point to a single API gateway. The API gateway points to Oracle Functions.

There is an Oracle Services Network area outside of the availability domain. The Oracle Services Network contains the following services: autonomous database, OCI vision, vault, data labeling, and object storage. The functions service within the availability domain has arrows that point to autonomous database, OCI vision, and vault. The OCI vision service has an arrow pointing to the data labeling service. The data labeling service has an arrow pointing to object storage.