Multi-tier OCI architecture spanning three fault domains with F5 load balancers, Palo Alto firewalls, and Kubernetes cluster integration across availability domains. Traffic flows from external users through public IPs 81.208.160.228 and 81.208.164.99 to firewall instances (E3.Flex, 8 OCPU, 128GB) and load balancers (E4.Flex, 4 OCPU, 16GB), then to application, database, and OKE Kubernetes tiers with management tools including Dynatrace and BMC. This architecture demonstrates high-availability patterns with redundant firewalls across fault domains, though inventory data is incomplete with inferred application groups and missing Kubernetes node pool details. Fork this diagram on Diagrams.so to validate missing components, reconcile the FW-01 fault domain inconsistency, and document full server specifications for your OCI deployment. Practitioners can customize this template to map actual hostnames, complete OKE cluster topology, and integrate additional monitoring endpoints.