Template: update-cluster/read_nodes_number
Type: string
Description: How many nodes do you have ?
 Enter 0 if you do not want to add anything here.

Template: update-cluster/read_node_info
Type: string
Description: Information for node ${node}.
 Enter information for node ${node} in the format shown below.
 This information will be passed to update-cluster-add to create 
 cluster.xml.
 .
 Hostname       IP address      MAC address     notes

