code: static void updateNetworkVariables( Map<String,String> instanceExports, String ipAddress ) {
  
  		// Find the keys to update ( xxx.ip )
  		Set<String> keysToUpdate = new HashSet<> ();
  		for( Map.Entry<String,String> entry : instanceExports.entrySet()) {
  			String suffix = parseVariableName( entry.getKey()).getValue();
  			if( Constants.SPECIFIC_VARIABLE_IP.equalsIgnoreCase( suffix ))
  				keysToUpdate.add( entry.getKey());
  		}
  
  		// Update them
  		for( String key : keysToUpdate )
  			instanceExports.put( key, ipAddress );
  	}
docs: Updates the exports of an instance with network values.
  <p>
  For the moment, only IP is supported.
  </p>
  
  @param instanceExports a non-null map of instance exports
  @param ipAddress the IP address to set