Setting up galera cluster, also have new strategy for internal ips

roles/common/tasks/main.yml

@@ -22,6 +22,9 @@
 - name: Install tmux
   apt: name=tmux state=prsent
 
+- name: Install rsync
+  apt: name=rsync state=present
+
 - name: Install zip
   apt: name=zip state=present