Do not run setup on all the nodes.

cluster.yml

@@ -57,7 +57,7 @@
   any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
   roles:
     - { role: kubespray-defaults}
-    - { role: etcd, tags: etcd }
+    - { role: etcd, tags: etcd, etcd_cluster_setup: false, etcd_events_cluster_setup: false }
 
 - hosts: etcd:k8s-cluster:vault:calico-rr
   any_errors_fatal: "{{ any_errors_fatal | default(true) }}"