Set hyperkube version to kube_version

roles/kubernetes/node/defaults/main.yml

@@ -32,7 +32,7 @@ dns_domain: "{{ cluster_name }}"
 kube_proxy_mode: userspace
 
 hyperkube_image_repo: "quay.io/smana/kubernetes-hyperkube"
-hyperkube_image_tag: "v1.3.0"
+hyperkube_image_tag: "{{ kube_version }}"
 
 # IP address of the DNS server.
 # Kubernetes will create a pod with several containers, serving as the DNS