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This article reviews a technical sharing session that explains the characteristics, advantages and drawbacks of Overlay and Underlay networking, discusses hybrid network challenges and Multus modes, and presents Kube‑OVN’s solution for seamless integration of both network types in Kubernetes environments.
This guide walks through deploying a lightweight K3s cluster unified with virtual machines using Kube‑OVN for multi‑tenant VPC isolation, configuring shared internet via VPN, installing cloud‑hypervisor, setting up Multus for multi‑NIC containers, and provisioning a management web‑app with Tomcat and OpenVPN, providing a complete cloud‑native lab environment.
This article explains how Kube-OVN extends its IP address management to other CNI plugins, supports multi‑NIC scenarios, and provides step‑by‑step instructions with YAML examples for installing Kube-OVN, configuring NetworkAttachmentDefinitions, creating Subnets, and deploying Pods with static or dynamic IPs.