prepare to initiate the cluster

tasks/main.yml

@@ -9,8 +9,28 @@
   package: name="{{ kubernetes_package_name }}" state=latest update_cache=yes
   notify: Restart kubelet
 
+- set_fact:
+    kubernetes_server: true
+    kubernetes_master: true
+  when:
+    - "'KubernetesMasters' in group_names"
+
+- set_fact:
+    kubernetes_server: true
+    kubernetes_master: false
+  when:
+    - "'KubernetesMasters' in group_names"
+
+- set_fact:
+    kubernetes_server: false
+  when:
+    - "'KubernetesMasters' not in group_names"
+    - "'KubernetesNodes' not in group_names"
+
 - name: Include kubernetes server rules
   include_tasks: "install_server.yml"
+  when:
+    - kubernetes_server is true
 
 #- name: Install python library for docker
 #  package: name="{{ python_openshift_lib }}" state=latest update_cache=yes