fix(e2e): check to see if hyperkube is running

scripts/kube-up.sh

@@ -65,6 +65,10 @@ setup_iptables() {
 start_kubernetes() {
   echo "Getting the party going..."
 
+  if docker ps --filter "name=helm_kubelet" >/dev/null; then
+    error_exit "Kubernetes already running"
+  fi
+
   docker run \
     --name=helm_kubelet \
     --volume=/:/rootfs:ro \