This image shows an Oracle Cloud Infrastructure tenancy enclosing a region with a single availability domain and 3 fault domains. The region provides two virtual cloud networks (VCNs), each in their own compartment. Compartments cross all regions in a tenancy. The tenancy provides Cloud Guard protection across the tenancy.
VCN 10.0.0.0/16 (Compartment A): Contains 3 regional public subnets arranged as functional tiers. Each subnet provides a route table and a security list.
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The VCN provides the following features and gateways:
- Cloud Guard protection for the compartment
- An internet gateway
- A local peering gateway (LPG) for communication between VCNs in the same regions using private IP addresses
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Load Balancing Tier 1 - regional public subnet 1 (10.0.1.0/24): Active and standby load balancers manage traffic to the application VMs. An internet gateway provides a public connection to the load balancers.
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Bastion Host Tier - regional public subnet 2 (10.0.2.0/24): A bastion host node resides in fault domain 1 and manages traffic to Database Tier. An internet gateway provides a public connection to the B
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Application Tier - regional private subnet (10.0.3.0/24): A Spring Boot application node resides in fault domain 1,2, and 3.
VCN 192.168.0.0/16 (Compartment B): Contains 1 regional private subnet. Each subnet provides a route table and a security list.
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The VCN provides the following features and gateways:
- Cloud Guard and Security Zone protection for the compartment
- A local peering gateway (LPG) for communication between VCNs in the same regions using private IP addresses
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Database Tier - regional private subnet (192.168.1.0/24): MySQL Database Service resides in fault domain 2.