Use the kube_apiserver_insecure_port variable instead of static 8080

roles/kubernetes/master/templates/manifests/kube-apiserver.manifest.j2

@@ -92,7 +92,7 @@ spec:
       httpGet:
         host: 127.0.0.1
         path: /healthz
-        port: 8080
+        port: {{ kube_apiserver_insecure_port }}
       initialDelaySeconds: 30
       timeoutSeconds: 10
     volumeMounts:
@@ -124,4 +124,4 @@ spec:
   - hostPath:
       path: /etc/ssl/certs/ca-bundle.crt
     name: rhel-ca-bundle
-{% endif %}
+{% endif %}