Calico VXLAN Addon

It is possible to use CNI plugins that are not directly supported by the KubeOne. Here’s an example for Calico.

Setup

mkdir addons
curl https://raw.githubusercontent.com/kubermatic/kubeone/release/v1.3/addons/calico-vxlan/calico-vxlan.yaml > addons/calico-vxlan.yaml

MTU

Please edit the addons/calico-vxlan.yaml and change veth_mtu: "1450" to appropriate MTU size. Please see more documentation how to find MTU size for your cluster https://docs.projectcalico.org/networking/mtu#determine-mtu-size.

Example AWS kubeone config

apiVersion: kubeone.io/v1beta1
kind: KubeOneCluster

versions:
  kubernetes: 1.18.5

cloudProvider:
  aws: {}

clusterNetwork:
  cni:
    external: {}

addons:
  enable: true
  path: "./addons"