How do I update a Kubernetes autoscaler? : <p>I have created a <a href="http://kubernetes.io/v1.1/docs/user-guide/horizontal-pod-autoscaler.html" rel="noreferrer">Kubernetes autoscaler</a>, but I need to change its parameters. How do I update it?</p>

<p>I've tried the following, but it fails:</p>

<pre><code>✗ kubectl autoscale -f docker/production/web-controller.yaml --min=2 --max=6
Error from server: horizontalpodautoscalers.extensions "web" already exists
</code></pre>
