Fix external lb error (#8299)

roles/kubernetes/preinstall/defaults/main.yml

@@ -60,3 +60,10 @@ pkg_install_retries: 4
 
 # Check if access_ip responds to ping. Set false if your firewall blocks ICMP.
 ping_access_ip: true
+
+apiserver_loadbalancer_domain_name_host: |-
+  {% if inventory_hostname in groups['kube_control_plane'] -%}
+      127.0.0.1
+  {%- else -%}
+      {{ loadbalancer_apiserver.address }}
+  {%- endif %}