code: function
  sysinfo_summary(reply)
  {
  	/*
  	 * Determine if this is a headnode or not:
  	 */
  	var headnode = false;
  	if (reply['Boot Parameters'] &&
  	    reply['Boot Parameters'].headnode) {
  		headnode = true;
  	}
  
  	/*
  	 * Construct a summary record with useful server identity
  	 * information:
  	 */
  	return ({
  		uuid: reply['UUID'],
  		hostname: reply['Hostname'],
  		datacenter: reply['Datacenter Name'],
  		setup: (reply['Setup'] === true || reply['Setup'] === 'true'),
  		headnode: headnode
  	});
  }
docs: /* in seconds