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 Engine 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.
