question: @ Override public String execCommand ( String containerName , String command ) throws FatalDockerJSONException { String output = execCommand ( containerName , command , false ) ; if ( output . contains ( "Permission denied" ) ) { logger . warn ( "[" + containerName + "] exec command in privileged mode : " + command ) ; output = execCommand ( containerName , command , true ) ; } return output ; }
target:  Execute a shell conmmad into a container. Return the output as String