The image shows an Oracle Cloud Infrastructure region, which is in a Siebel environment, and an on-premises implementation.

The OCI region comprises three availability domains (ADs), Availability Domain 1, Availability Domain 2, and Availability Domain 3. These ADs are within a virtual cloud network (VCN), which extends into the region. The VCN contains three subnets, one allocated as public/private, and the other two allocated as private subnets. Access to each subnet is managed by a routing table and a security list.

The public/private subnet contains a Siebel Cloud instance in AD 1, a Gitlab instance in AD 2, and an OCI load balancer in AD 3.

The first private subnet contains a Oracle Container Engine for Kubernetes implementation comprising three Kubernetes nodes, one in each AD.
  • The node in AD 1 contains Siebel Application Interface 1, Siebel Cloud Gateway 1, and Siebel Server 1, each containing a server and a pod.
  • The node in AD 2 contains a Helm/Flux cluster, along with Siebel Cloud Gateway 2, and Siebel Server 2. Each Siebel component contains a server and a pod.
  • The node in AD 3 contains an Nginx Ingress Controller, along with Siebel Application Interface 2, and Siebel Cloud Gateway 3.

The third private subnet contains a Primary Siebel Database in AD 1 and a Standby Siebel Database in AD 2. They are synchronized by Data Guard.

Outside the VCN, the region also contains these additional services:
  • Policies
  • Identity Cloud Service
  • Siebel File System - OCI FSS
  • Object Storage
  • Container Registry
  • Resource Manager
The Gitlab instance sends traffic Helm/Flux cluster, while the load balancer directs traffic to the Nginx Ingress Controller, which sends data to Siebel Application Interface 1 and Siebel Application Interface 2.

The entire region is protected by Cloud Guard.

The on-premises implementation contains a Siebel on-premises environment, comprising these components:
  • Configuration
  • Web Files
  • File Service
  • Database
External to the on-premises environment is the Cloud Manager lift tool.

Traffic between the OCI region and the on-premises implementation is from a DRG on the VCN and customer premises equipment over VPN/FastConnect.