<p>We're currently running a Kubernetes 1.0 cluster on AWS in production, and we'd like to spin up a second cluster to test out 1.1. Based on the <a href="https://github.com/kubernetes/kubernetes/blob/master/cluster/aws/util.sh#L91-L98" rel="nofollow">AWS helper functions</a>, it looks like multiple clusters aren't supported, but I wanted to be sure. There's <a href="http://kubernetes.io/v1.1/docs/admin/multi-cluster.html" rel="nofollow">a doc</a> that describes running multiple clusters, but it's fairly brief.</p>

<p>In general, we'd like to have a second cluster continuously running for testing purposes. It seems like this would be a fairly common need.</p>

<p>You should be able to run a second cluster by setting <code>INSTANCE_PREFIX</code> before running <code>kube-up</code>.  That variable in turn sets <code>CLUSTER_ID</code> which should parameterize everything in the <code>cluster/aws/*</code> scripts.</p>
