Kube Ovn

Abstract

1. Introduction

Kube-OVN, a CNCF Sandbox Project, integrates OVN-based Network Virtualization with Kubernetes. It provides enhanced support for KubeVirt and unique Multi-Tenancy capabilities.

Kube-OVN is easy to install, please refer to the Installation Guide.

2. Objective

A Bridge between SDN and Cloud Native (Project under CNCF)

This project demonstrates how Go, Kubernetes can be applied to a real-world Blockchain & Cloud Computing problem.

3. Key Features / Modules

• VPC Support: Multi-tenant network with independent address spaces, where each tenant has its own network infrastructure such as eips, nat gateways, security groups and loadbalancers.
• Vlan/Underlay Support: In addition to overlay network, Kube-OVN also supports underlay and vlan mode network for better performance and direct connectivity with physical network.
• Static IP Addresses for Workloads: Allocate random or static IP addresses to workloads.
• Seamless VM LiveMigration: Live migrate KubeVirt vm without network interruption.
• Multi-Cluster Network: Connect different Kubernetes/Openstack clusters into one L3 network.
• TroubleShooting Tools: Handy tools to diagnose, trace, monitor and dump container network traffic to help troubleshoot complicate network issues.
• Prometheus & Grafana Integration: Exposing network quality metrics like pod/node/service/dns connectivity/latency in Prometheus format.
• ARM Support: Kube-OVN can run on x86_64 and arm64 platforms.
• Subnet Isolation: Can configure a Subnet to deny any traffic from source IP addresses not within the same Subnet. Can whitelist specific IP addresses and IP ranges.
• Network Policy: Implementing networking.k8s.io/NetworkPolicy API by high performance ovn ACL.

4. Technology Stack

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

• Go 1.20 or later
• Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/kubeovn/kube-ovn.git
cd kube-ovn

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

• Add a CI/CD pipeline with GitHub Actions
• Deploy to a public test network or cloud free tier
• Add monitoring and cost alerts

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

1. Why does this problem need a blockchain or cloud-native design?
2. Explain the smart contract / infrastructure components and how they interact.
3. How are gas costs or cloud costs kept under control?
4. How is the system secured (keys, IAM, access control)?
5. How would the solution scale to many more users?

9. Source Code & License

This project is developed by kubeovn and published on GitHub under the Apache License 2.0. Please follow the license terms and credit the original author when you use or modify this code.