Abstract: Cloud application fault detection is described. At an observability framework implemented by a processor, log files associated with applications are received, wherein the log files are automatically streamed from at least one log directory. A template is applied to the log files automatically streamed from the at least one log directory as the log files are received to identify faults of the applications associated with the log files. The log files automatically streamed from the at least one log directory are processed as the log files are received based on the faults to generate an error message identifying the faults of the applications associated with the log files.