add the loadbalancer address to ssl certs

roles/kubernetes/node/templates/openssl.conf.j2

@@ -15,7 +15,7 @@ IP.{{ loop.index }} = {{ hostvars[host]['ip'] | default(hostvars[host]['ansible_
 {% endfor %}
 {% set idx =  groups['kube-master'] | length | int + 1 %}
 IP.{{ idx | string }} = {{ kube_apiserver_ip }}
-{% if kube_loadbalancer_ip is defined | default('') %}                                                                                      
+{% if loadbalancer_address is defined | default('') %}
 {% set idx =  idx | int + 1 %}
-IP.{{ idx | string }} = {{ kube_loadbalancer }}
+IP.{{ idx | string }} = {{ loadbalancer_address }}
 {% endif %}