What is the rotation strategy for Golang logs on Debian

In Debian systems, Go's log rotation usually relies on third-party libraries, rather than the features that come with Go standard libraries. lumberjack is a commonly used option. It can be used with various log frameworks (such as zap and logrus) to realize automatic rotation and compression of log files.

Here is an example configuration using lumberjack and zap libraries:

 package main

import (
    "gopkg.in/natefinch/lumberjack.v2"
    "go.uber.org/zap"
    "go.uber.org/zap/zapcore"
)

func main() {
    hook := lumberjack.Logger{
        Filename: "./foo.log", // Log file path MaxSize: 500, // Maximum file size (MB)
        MaxBackups: 3, // Maximum number of backup files MaxAge: 28, // Maximum number of retention days (days)
    }

    core := zapcore.NewCore(
        zapcore.NewJSONEncoder(zap.NewProductionEncoderConfig()),
        zapcore.AddSync(&hook),
        zap.InfoLevel,
    )

    logger := zap.New(core)
    defer logger.Sync()
    logger.Info("Login logger initialization successfully")
}

In this code snippet, lumberjack.Logger defines a log rotation strategy: maximum file size 500MB, maximum 3 backup files, and maximum 28 days. When the log file reaches its maximum size or exceeds the retention days, lumberjack will automatically create a new log file and delete the old file.

In addition to lumberjack , other log libraries, such as logrus ' lumberjack integration or zerolog , also provide log rotation functionality. Developers can select the appropriate library according to project needs and customize the rotation strategy through code or configuration files.

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