node-control cluster and fallback config concept

gistfile1.js

/*global console, require, process */                                           
                                                                                
var path = require('path'),                                                     
    control = require('control'),                                         
    task = control.task;                                                        
                                                                                
function configure(addresses) {                                                 
    var config;                                                                 
    config = {                                                                  
        user: 'mylogin'                                                         
    };                                                                          
    return control.hosts(config, addresses);                                    
}                                                                               
                                                                                
task('cluster', 'Config for my cluster', function () {                          
    var addresses;                                                              
    addresses = [ 'a.mydomain.com',                                             
                  'b.mydomain.com',                                             
                  'c.mydomain.com' ];                                           
    return configure(addresses);                                                
});                                                                             
                                                                                
task('subset', 'Quick fallback for less than full cluster', function () {       
    return configure(['b.mydomain.com']);                                       
});                                                                             
                                                                                
task('dummy', undefined, function (host)  {});                                  
                                                                                
control.begin();