code: static String expandVolumeName( String nameTemplate, String appName, String instanceName ) {
  
  		String name = nameTemplate.replace( TPL_VOLUME_NAME, instanceName );
  		name = name.replace( TPL_VOLUME_APP, appName );
  		name = name.replaceAll( "[\\W_-]", "-" );
  
  		return name;
  	}
docs: Updates a volume name by replacing template variables.
  @param nameTemplate (not null)
  @param appName (not null)
  @param instanceName (not null)
  @return a non-null string