Etcd cluster setup makeover

The current way to setup the etc cluster is messy and buggy.

- It checks for cluster is healthy before the cluster is even created.
- The unit files are started on handlers, not in the task, so you mess with "flush handlers".
- The join_member.yml is not used.
- etcd events cluster is not configured for kubeadm
- remove duplicate runs between running the role on etcd nodes and k8s nodes

roles/etcd/handlers/main.yml

@@ -10,7 +10,7 @@
 - name: restart etcd-events
   command: /bin/true
   notify:
-    - etcd-events | reload systemd
+    - etcd | reload systemd
     - reload etcd-events
     - wait for etcd-events up
 
@@ -19,9 +19,6 @@
 - name: etcd | reload systemd
   command: systemctl daemon-reload
 
-- name: etcd-events | reload systemd
-  command: systemctl daemon-reload
-
 - name: reload etcd
   service:
     name: etcd