title: Kubernetes worker node is NotReady due to CNI plugin not initialized
body: <p>I'm using <code>kind</code> to run a test kubernetes cluster on my local Macbook.</p>
  <p>I found one of the nodes with status <code>NotReady</code>:</p>
  <pre class="lang-sh prettyprint-override"><code>$ kind get clusters                                                                                                                                                                 
  mc
  
  $ kubernetes get nodes
  NAME                STATUS     ROLES    AGE     VERSION
  mc-control-plane    Ready      master   4h42m   v1.18.2
  mc-control-plane2   Ready      master   4h41m   v1.18.2
  mc-control-plane3   Ready      master   4h40m   v1.18.2
  mc-worker           NotReady   &lt;none&gt;   4h40m   v1.18.2
  mc-worker2          Ready      &lt;none&gt;   4h40m   v1.18.2
  mc-worker3          Ready      &lt;none&gt;   4h40m   v1.18.2
  </code></pre>
  <p>The only interesting thing in <code>kubectl describe node mc-worker</code> is that the CNI plugin not initialized:</p>
  <pre class="lang-sh prettyprint-override"><code>Conditions:
    Type             Status  LastHeartbeatTime                 LastTransitionTime                Reason                       Message
    ----             ------  -----------------                 ------------------                ------                       -------
    MemoryPressure   False   Tue, 11 Aug 2020 16:55:44 -0700   Tue, 11 Aug 2020 12:10:16 -0700   KubeletHasSufficientMemory   kubelet has sufficient memory available
    DiskPressure     False   Tue, 11 Aug 2020 16:55:44 -0700   Tue, 11 Aug 2020 12:10:16 -0700   KubeletHasNoDiskPressure     kubelet has no disk pressure
    PIDPressure      False   Tue, 11 Aug 2020 16:55:44 -0700   Tue, 11 Aug 2020 12:10:16 -0700   KubeletHasSufficientPID      kubelet has sufficient PID available
    Ready            False   Tue, 11 Aug 2020 16:55:44 -0700   Tue, 11 Aug 2020 12:10:16 -0700   KubeletNotReady              runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady
  message:Network plugin returns error: cni plugin not initialized
  </code></pre>
  <p>I have 2 similar clusters and this only occurs on this cluster.</p>
  <p>Since <code>kind</code> uses the local Docker daemon to run these nodes as containers, I have already tried to restart the container (should be the equivalent of rebooting the node).</p>
  <p>I have considered deleting and recreating the cluster, but there ought to be a way to solve this without recreating the cluster.</p>
  <p>Here are the versions that I'm running:</p>
  <pre class="lang-sh prettyprint-override"><code>$ kind version                                                                                                                                                                     
  kind v0.8.1 go1.14.4 darwin/amd64
  
  $ kubectl version                                                                                                                                                  
  Client Version: version.Info{Major:&quot;1&quot;, Minor:&quot;16+&quot;, GitVersion:&quot;v1.16.6-beta.0&quot;, GitCommit:&quot;e7f962ba86f4ce7033828210ca3556393c377bcc&quot;, GitTreeState:&quot;clean&quot;, BuildDate:&quot;2020-01-15T08:26:26Z&quot;, GoVersion:&quot;go1.13.5&quot;, Compiler:&quot;gc&quot;, Platform:&quot;darwin/amd64&quot;}
  Server Version: version.Info{Major:&quot;1&quot;, Minor:&quot;18&quot;, GitVersion:&quot;v1.18.2&quot;, GitCommit:&quot;52c56ce7a8272c798dbc29846288d7cd9fbae032&quot;, GitTreeState:&quot;clean&quot;, BuildDate:&quot;2020-04-30T20:19:45Z&quot;, GoVersion:&quot;go1.13.9&quot;, Compiler:&quot;gc&quot;, Platform:&quot;linux/amd64&quot;}
  </code></pre>
  <p>How do you resolve this issue?</p>