title: Kubernetes: --image-pull-policy always does not work
body: <p>I have a Kubernetes deployment which uses image: <code>test:latest</code> (not real image name but it's the latest tag).
  This image is on docker hub. I have just pushed a new version of <code>test:latest</code> to dockerhub. I was expecting a new deployment of my pod in Kubernetes but nothing happends.</p>
  
  <p>I've created my deployment like this:</p>
  
  <pre><code>kubectl run sample-app --image=`test:latest` --namespace=sample-app --image-pull-policy Always
  </code></pre>
  
  <p>Why isn't there a new deployment triggered after the push of a new image?</p>