How to Enable KubeSpan

Talos Linux provides a full mesh WireGuard network for your cluster.

To enable this functionality, you need to configure KubeSpan and Cluster Discovery in your Talos Linux configuration:

machine:
  network:
    kubespan:
      enabled: true
cluster:
  discovery:
    enabled: true

Since KubeSpan encapsulates traffic into a WireGuard tunnel, Kube-OVN should also be configured with a lower MTU value.

To achieve this, add the following to the networking component of your Platform Package:

apiVersion: cozystack.io/v1alpha1
kind: Package
metadata:
  name: cozystack.cozystack-platform
spec:
  # ...
  components:
    networking:
      values:
        kube-ovn:
          mtu: 1222