The image shows a DoDIN region, an OCI home region, and an OCI other region.

DoDIN

OCI regions

Two tenancies spans both OCI regions (home and other). The first tenancy includes:

IAM Domain (Default) - Identity and Access Management (IAM) uses identity domains to provide identity and access management features such as authentication, single sign-on (SSO), and identity lifecycle management for Oracle Cloud as well as for Oracle and non-Oracle applications, whether SaaS, cloud hosted, or on premises.
Policies - A policy is a document that specifies who can access which OCI resources that your company has
Vulnerability Scanning - Oracle Cloud Infrastructure Vulnerability Scanning Service helps improve your security posture by routinely checking hosts and container images for potential vulnerabilities
Cloud Guard - Cloud Guard is a cloud native service that helps customers monitor, identify, achieve, and maintain a strong security posture on Oracle Cloud
Landing zone L1 - EBLZ Parent

L1 - EBLZ Parent

L2 Workload 1 - This is the compartment for the initial workload
L2 Workload 1 - This is the compartment for the initial workload
L2 - VDSS - All core network resources are placed here
L2 - VDMS - Security resources are placed here
IAM Domain (New) - Identity and Access Management (IAM) uses identity domains to provide identity and access management features such as authentication, single sign-on (SSO), and identity lifecycle management for Oracle Cloud as well as for Oracle and non-Oracle applications
Policies - A policy is a document that specifies who can access which OCI resources that your company has
Cloud Guard Target - Defines scope of what Cloud Guard checks
VSS Target - OCI Vulnerability Scanning Service helps improve your security posture by routinely checking hosts and container images for potential vulnerabilities
Auditing - The Landing Zone copies all logs and auditing events to the Logging analytics service for analysis and visualization

L2 Workload 1

L2 contains the following and is replicated.

Object Storage - Object storage provides quick access to large amounts of structured and unstructured data of any content type, including database backups, analytic data, and rich content such as images and videos
VCN - Spoke 1 with a Service Gateway, a DRG, a WAF, a subnet with VM, and a subnet with ADB.

L2 - VDSS

FC - FastConnect allows customers to connect directly to their OCI virtual cloud network via dedicated, private, high-bandwidth connections
VCN - Hub with a DRG, Firewall, and VCN Flow Logs

L2 VDMS

Bastion Service - OCI Bastion provides restricted and time-limited access to target resources that don't have public endpoints
Events - The Events service helps you create automation based on the state changes of resources throughout your tenancy
Streaming - The Streaming service provides a fully managed, scalable, and durable solution for ingesting and consuming high-volume data streams in real time
Logging Analytics - Oracle Cloud Logging Analytics is a cloud solution in OCI that lets you index, enrich, aggregate, explore, search, analyze, correlate, visualize and monitor all log data from your applications and system infrastructure
Two Vaults (Virtual Private) - OCI Vault is an encryption management service that stores and manages encryption keys and secrets to securely access resources
VSS Recipes - Use OCI Vulnerability Scanning Service to create and manage recipes that scan target compute instances (hosts) for potential security vulnerabilities
Logging - The Logging service provides a highly scalable and fully managed single interface for all the logs in your tenancy
Service Connector Hub - Connector Hub helps cloud engineers manage and move data between OCI services and from OCI to third-party services
L2 - Logging with two Object Storage (Immutable) instances

The second tenancy includes: