Here's how to make sure docker and kubelet use same cgroups driver by explicitly configuring both:

Docker:
```shell
$ cat /etc/docker/daemon.json
{
    "exec-opts": ["native.cgroupdriver=cgroupfs"]
}
```

Kubelet (when set up using with `kubeadm`):
```shell
$ cat /etc/systemd/system/kubelet.service.d/05-custom.conf
[Service]
Environment="KUBELET_EXTRA_ARGS=--cgroup-driver=cgroupfs"
```

Don't forget to `systemctl daemon-reload` and restart the services after changing the configs.