94 lines
2.5 KiB
Go
94 lines
2.5 KiB
Go
package main
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import (
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"context"
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"dashboard/dao/sqldb"
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"dashboard/logger"
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"dashboard/routes"
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"dashboard/settings"
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"errors"
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"flag"
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"fmt"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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"go.uber.org/zap"
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)
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var config = flag.String("f", "./config/config.yaml", "config file path")
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func main() {
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flag.Parse()
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sets := settings.New(settings.WithName(*config))
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log, err := logger.New(
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logger.WithFileName(sets.LogConfig.Filename),
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logger.WithLevel(sets.LogConfig.Level),
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logger.WithMaxAge(sets.LogConfig.MaxAge),
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logger.WithMaxSize(sets.LogConfig.MaxSize),
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logger.WithMaxBackUp(sets.LogConfig.MaxBackUps),
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logger.WithMode(sets.BaseConfig.Mode),
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)
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if err != nil {
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fmt.Println(err)
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panic(err)
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}
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defer func() {
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_ = log.Sync()
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}()
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log.Info("Settings and log init ok")
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db, err := sqldb.NewDb(sets.SqlConfig)
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if err != nil {
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log.Sugar().Panicf("New db error: %v", err)
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}
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sqldb.SqlDbInit(log, db)
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if err != nil {
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log.Sugar().Panicf("New db error: %v", err)
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}
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r := routes.Setup(log, *sets.RateLimitConfig, *sets.JwtConfig)
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listenAndServe(fmt.Sprintf(":%d", sets.BaseConfig.Port), r, log)
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}
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func listenAndServe(addr string, handle http.Handler, log *logger.Logger) {
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srv := &http.Server{
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Addr: addr,
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Handler: handle,
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}
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log.Sugar().Infof("Server listen on %s", addr)
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go func() {
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// 开启一个goroutine启动服务
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if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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log.Error("listen: %s\n", zap.Error(err))
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}
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}()
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// 等待中断信号来优雅地关闭服务器，为关闭服务器操作设置一个5秒的超时
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quit := make(chan os.Signal, 1) // 创建一个接收信号的通道
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// kill 默认会发送 syscall.SIGTERM 信号
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// kill -2 发送 syscall.SIGINT 信号，我们常用的Ctrl+C就是触发系统SIGINT信号
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// kill -9 发送 syscall.SIGKILL 信号，但是不能被捕获，所以不需要添加它
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// signal.Notify把收到的 syscall.SIGINT或syscall.SIGTERM 信号转发给quit
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signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM) // 此处不会阻塞
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<-quit // 阻塞在此，当接收到上述两种信号时才会往下执行
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log.Info("Shutdown Server ...")
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// 创建一个5秒超时的context
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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// 5秒内优雅关闭服务（将未处理完的请求处理完再关闭服务），超过5秒就超时退出
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if err := srv.Shutdown(ctx); err != nil {
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log.Error("Server Shutdown: ", zap.Error(err))
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}
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log.Info("Server exiting")
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}
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