title: worker added but not present in kubectl get nodes
body: <p>I'm setting up a 2-node Kubernetes system, following the Docker Multi-Node <a href="http://kubernetes.io/v1.1/docs/getting-started-guides/docker-multinode.html" rel="nofollow">instructions</a>.</p>
  
  <p>My problem is that <code>kubectl get nodes</code> only shows the master, not the worker node as well.</p>
  
  <ul>
  <li>The setup appears to have worked, with all the expected containers running (as far as I know) </li>
  <li>I've confirmed that networking works via flannel.</li>
  <li>The subnet of the work node appears in the master's subnet list.</li>
  </ul>
  
  <p>So everything looks good, except the node isn't showing up.</p>
  
  <p>My questions:</p>
  
  <ol>
  <li><p>Am I right in thinking the worker node should now be visible from 'get nodes'?</p></li>
  <li><p>Does it matter whether the MASTER_IP used to do the setup was the master node's public IP address, or the docker IP? (I've tried both..)</p></li>
  <li><p>Where do I start with debugging this?</p></li>
  </ol>
  
  <p>Any pointers gratefully accepted...</p>
  
  <p>Versions:</p>
  
  <ul>
  <li>Ubuntu Trusty 14.04 LTS on both master and worker </li>
  <li>Kubernetes v1.1.4</li>
  <li>hyperkube:v1.0.3</li>
  </ul>