I am trying to follow docs to setup a one node Kubernetes cluster with Centos 7.

kubeadm init will return no error but kubectl get nodes will return:

```
NAME      STATUS     AGE       VERSION
[MY_IP]   NotReady   22s       v1.6.4

```

system log repeats:

```
Jun  6 16:21:48 localhost kubelet: W0606 16:21:48.064388   11520 cni.go:157] Unable to update cni config: No networks found in /etc/cni/net.d
Jun  6 16:21:48 localhost kubelet: E0606 16:21:48.064537   11520 kubelet.go:2067] Container runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized

```

I can only find info about this in Kubernetes github logs but they talk about a bug and I haven't found a workaround. Thanks