title: kubeadm join - unable to check if the container runtime
body: <p>While adding new node to existing 1.9.0 cluster. kubeadm giving this error message.</p>
  
  <p>My cluster is running on Centos 7 server. docker deamon is running, but there is no file /var/run/dockershim.sock found.</p>
  
  <p>How to resolve this error message?</p>
  
  <pre><code>kubeadm join --token 
  [preflight] Some fatal errors occurred:
          [ERROR CRI]: unable to check if the container runtime at "/var/run/dockershim.sock" is running: exit status 1
  [preflight] If you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=...`
  </code></pre>
  
  <p>thanks
  SR</p>