Added kubernetes api to haproxy

roles/haproxy/templates/haproxy.cfg.j2

@@ -39,3 +39,11 @@ listen https
 {% for node in groups['kube-workers'] %}
   server {{node}} {{ hostvars[node]['ansible_host'] }}:443 check fall 3 inter 3s rise 2
 {% endfor %}
+
+listen kubernetes
+  bind *:6443
+  mode tcp
+  balance roundrobin
+{% for node in groups['kube-masters'] %}
+  server {{node}} {{ hostvars[node]['ansible_host'] }}:6443 check fall 3 inter 3s rise 2
+{% endfor %}