How to configure log rotation based on total log file count in Go?

To configure log rotation based on the total log file count in Go, you can use the "github.com/natefinch/lumberjack" package. Here's an example of how to do it:

Import the required package:

import (
	"log"
	"os"
	"gopkg.in/natefinch/lumberjack.v2"
)

Set the log file count limit and other log rotation options:

maxLogFiles := 5 // maximum number of log files to keep
logFilePath := "logs/app.log"

logRotation := &lumberjack.Logger{
	Filename:   logFilePath,       // path to the log file
	MaxBackups: maxLogFiles - 1,   // maximum number of files to keep (-1 because the active log file is not counted)
}

Configure the standard logger to use the log rotation settings:

log.SetOutput(logRotation)

Perform logging as usual:

log.Println("This is a log message.")

Now, whenever the log file size exceeds the pre-defined limit or the total number of log files reaches the specified count, the package will automatically rotate the log files, keeping only the most recent files as per the limit.

Make sure to periodically clean up the old log files to prevent excessive disk usage.