automatically slices --eventaddr file to the specified size( similar to lograte)

[chilli13]

In a continuous traffic environment, ./ecapture-perf tls --eventaddr=xxx.txt may generate a large ecapture file xxx.txt, is it possible to consider using golang rolling file library, such as lumberjack/rotatelogs, to integrate with zerolog and support automatic slicing of eventaddr specified files (the file handler that receives the captured event)? Thks

[cfc4n]

In a continuous traffic environment, ./ecapture-perf tls --eventaddr=xxx.txt may generate a large ecapture file xxx.txt, is it possible to consider using golang rolling file library, such as lumberjack/rotatelogs, to integrate with zerolog and support automatic slicing of eventaddr specified files (the file handler that receives the captured event)? Thks

@dosu

[dosubot]

To implement automatic file slicing for the --eventaddr option in ecapture, you can integrate a rolling file library like lumberjack with zerolog. Here's a general approach to achieve this:

1. Add Lumberjack Dependency: First, add the lumberjack package to your go.mod file to manage log file rotation.

2. Integrate Lumberjack with Zerolog: Modify the logger initialization to use lumberjack as the output writer. Here's a basic example:

   import (
       "github.com/rs/zerolog"
       "gopkg.in/natefinch/lumberjack.v2"
       "os"
   )
   
   func initLogger(addr string, modConfig config.IConfig) zerolog.Logger {
       var logger zerolog.Logger
       var writer zerolog.ConsoleWriter
   
       if addr != "" {
           writer = zerolog.ConsoleWriter{Out: os.Stdout, TimeFormat: time.RFC3339}
       } else {
           writer = &lumberjack.Logger{
               Filename:   addr,
               MaxSize:    100, // megabytes
               MaxBackups: 3,
               MaxAge:     28,   // days
               Compress:   true, // disabled by default
           }
       }
   
       logger = zerolog.New(writer).With().Timestamp().Logger()
       zerolog.SetGlobalLevel(zerolog.InfoLevel)
       if modConfig.GetDebug() {
           zerolog.SetGlobalLevel(zerolog.DebugLevel)
       }
   
       return logger
   }

3. Configure Lumberjack: Adjust the lumberjack.Logger settings such as MaxSize, MaxBackups, and MaxAge to suit your needs for file rotation and retention.

This setup will allow ecapture to automatically manage the size of the --eventaddr file, rotating it when it reaches the specified size limit.

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[cfc4n]

--eventaddr can be a TCP Server, and you can customize the way logs are processed.