kubeadm initで"systemd" is different from docker cgroup driver: "cgroupfs".

kubeadm init で

"systemd" is different from docker cgroup driver: "cgroupfs".

が表示された際の対応メモ

kind: ClusterConfiguration
apiVersion: kubeadm.k8s.io/v1beta3
apiServer:
  certSANs:
  - "kubernetes-api.local"
controlPlaneEndpoint: "kubernetes-api.local:443"
# for flannel
networking:
  podSubnet: "10.244.0.0/16"
---
kind: KubeletConfiguration
apiVersion: kubelet.config.k8s.io/v1beta1
cgroupDriver: cgroupfs  ⇦これを追記