Environment Requirements

OS and Software Versions

Kube-OVN is a CNI-compliant network component that runs in the Kubernetes environment. Table 1 lists the supported OS and software versions.

**Table 1** Environment requirements
Item	Name	Version
OS	CentOS	7.5 or later
	Ubuntu	16.04 or later
	openEuler	20.03-LTS-SP1 or later
Kernel	Kernel	3.10.0-898 or later
Docker	Docker Community	1.12.6 or later
Docker	Docker CE	18.09.0 or later
Kubernetes	Kubernetes	1.11 or later

Network Plugins

Kube-OVN contains all the required CNI plugins. You do not need to install the CNI plugin separately.

To prevent the network from being affected by the rules and routes of other network plugins, you are advised to install Kube-OVN in a Kubernetes cluster that has no other network plugins installed.

If other network plugins have been installed in the cluster, delete them and the corresponding network configurations such as NICs, iptables rules, and routing rules. Ensure that no configuration files of other network plugins exist in the /etc/cni/net.d/ directory.

Parent topic: Basic Installation