apiVersion: networking.k8s.io/v1alpha1
kind: ClusterCIDR
metadata:
  name: new-cidr
spec:
  nodeSelector:
    nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname
          operator: In
          values:
          -  "agent-0"
  perNodeHostBits: 64
  ipv6: 2001:cafe:248::/56