# kubeovn/kube-ovn

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

Repository: https://github.com/kubeovn/kube-ovn
Canonical: https://ross.abutalabs.com/products/kube-ovn
Homepage: https://kube-ovn.io
Language: Go
License: Apache-2.0
License Family: permissive
Topics: kubernetes, networking, ovn, openvswitch, overlay-network, cni, kubernetes-networking, sdn, ovs, network
Last push: 2026-08-26T12:18:08+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 87, longevity 100
- inputs: {"age_days": 2721, "days_push": 7, "days_rel": 11, "gap_med": 4, "n_releases_24m": 88}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2393, forks 549 (observed 2026-08-28T04:06:43.419727+00:00)

## What it is
Kube-OVN is a CNCF Sandbox CNI plugin that integrates OVN-based network virtualization with Kubernetes, providing an advanced container network fabric. It offers enterprise features such as multi-tenant VPCs, namespaced subnets, underlay/VLAN networking, static IPs, and multi-cluster connectivity.

## Use cases
- give each kubernetes namespace its own subnet with static pod IPs
- run multi-tenant kubernetes networking with isolated VPCs and overlapping IP spaces
- connect kubernetes pods directly to the physical network via VLAN/underlay networking
- live migrate KubeVirt virtual machines without network interruption
- enforce kubernetes NetworkPolicy with high-performance OVN ACLs
- run ipv4/ipv6 dual-stack pods in kubernetes
- connect multiple kubernetes clusters into one L3 network
- use kube-ovn as a secondary CNI alongside cilium or calico

## When to choose
- you need enterprise-grade SDN features in Kubernetes like VPCs, NAT/EIP, and subnet isolation
- you require static IP allocation or dual-stack networking for workloads
- you run KubeVirt VMs and need seamless live migration
- you want underlay/VLAN connectivity or multi-cluster L3 networking

## When to avoid
- you need only a simple CNI with minimal overhead
- your team has no experience with OVN/Open vSwitch and wants a simpler setup
- you run Kubernetes on platforms without Linux node support (no Windows/arm32)

## Facets
- artifact type: service
- maturity: active
- function: networking, security, monitoring, caching
- domain: networking, cloud-computing, microservices
- platform: go, self-hosted
- tags: cni, ovn, openvswitch, sdn, overlay-network, kubernetes-networking, multi-tenancy, kubevirt, network-policy, dual-stack, vlan, cncf, containers, devops, linux, kubernetes, docker

## Member repositories
- kubeovn/kube-ovn (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:43.419727+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:34:25.946621+00:00, confidence not recorded.
  - readme: https://github.com/kubeovn/kube-ovn (fetched 2026-08-28T04:06:43.419727+00:00, sha b40c6c9ab62b)
  - homepage: https://kube-ovn.io (fetched 2026-08-29T10:15:00.767363+00:00, sha df5e6c0de142)
- Data as of 2026-08-30T08:39:29.467469+00:00.