Introduction & Context

The Dual Pillars of Kubernetes: Exploring how networking and storage form the architectural foundation of any enterprise-grade container orchestration platform

Evolution of OpenShift Networking: Understanding the critical transition from legacy software-defined networking (SDN) to the modern OVN-Kubernetes framework to manage high-density traffic and multi-tenant isolation

Evolution of OpenShift Storage: Discussing how the persistence layer has matured from simple volume mounting to a sophisticated, operator-managed fabric known as OpenShift Data Foundation (ODF)

Core Architecture & Theory (Networking models & Storage classes)

OVN-Kubernetes Networking Architecture

Core Mechanics: How OVN-Kubernetes translates high-level Kubernetes intents into logical flows and OpenFlow rules on each node using Open Virtual Network (OVN) and Open vSwitch (OVS)

Architecture Evolution: The shift from the legacy Central Mode (with centralized Northbound and Southbound databases causing scaling bottlenecks) to the modern Interconnect Mode, which pushes control-plane complexity down to local databases on each node for improved stability and scale

Advanced Capabilities: Hardware offloading to DPUs, IPv4/IPv6 dual-stack, and hybrid networking

Storage and Data Persistence (CSI & ODF)

Persistent Volumes (PVs) and Claims (PVCs): How OpenShift scopes storage consumption, separating the developer’s request from the underlying infrastructure mechanics

The Container Storage Interface (CSI): Standardizing the bridge between OpenShift and backend storage, allowing dynamic provisioning, volume cloning, and volume snapshots without requiring cluster-wide updates

OpenShift Data Foundation (ODF): Abstracting heterogeneous hardware into unified pools. Exploring its core components: Ceph (for block and file storage like Ceph RBD and CephFS), the Rook-Ceph operator, and NooBaa for multicloud object gateway (S3) access

and DEMO