This image shows an Oracle Cloud Infrastructure region with a single availability domain. The region provides the Oracle Cloud Infrastructure Registry, an internet gateway, and a virtual cloud network (VCN) with a service gateway, two regional public subnets, and three regional private subnets. The subnets are arranged by function:

• Bastion Tier (regional public subnet): A bastion server manages traffic to the Administrative Host and WebLogic Tiers. An internet gateway provides a public connection.

• Administrative Host Tier (regional private subnet): An administrative host manages the following areas in the other private subnets:

  • The Oracle WebLogic Server for Oracle Cloud Infrastructure Kubernetes Engine (OKE) cluster
  • Logs for the Oracle WebLogic Server domain
  • Jenkins home configuration
  • Helper scripts to manage your domain
  • The file storage service
• Oracle WebLogic Server for OKE Tier (regional private subnet): The Kubernetes cluster includes a private load balancer that provides access to two node pools:

  • Non-WebLogic node pool:
    • A pod running the Jenkins controller
    • A pod running an Nginx ingress controller
    • A pod running WebLogic Kubernetes Operator
  • WebLogic node pool:
    • A pod running the domain's administration server
    • A pod running each managed server in the domain
    • A pod running the Jenkins agent
    • A pod running the WebLogic Domain Introspector

  The subnet includes an Nginx ingress controller load balancer to access the Jenkins console, the Oracle WebLogic Server administration server, and a persistent storage volume connected to the storage tier.

• Load Balancing Tier (regional public subnet): An public load balancer provides access to the Oracle WebLogic Server cluster. An internet gateway provides a public connection.

• Storage Tier (regional private subnet): Provides a file storage service shared across pods. The tier also provides storage for logs, helper scripts, and the Jenkins home.