graceful 关闭服务器 (#1416)

main.go

@@ -1,14 +1,21 @@
 package main
 
 import (
+	"context"
 	_ "embed"
 	"flag"
 	"io"
 	"io/fs"
+	"net"
+	"net/http"
 	"os"
+	"os/signal"
 	"strings"
+	"syscall"
+	"time"
 
 	"github.com/cloudreve/Cloudreve/v3/bootstrap"
+	model "github.com/cloudreve/Cloudreve/v3/models"
 	"github.com/cloudreve/Cloudreve/v3/pkg/conf"
 	"github.com/cloudreve/Cloudreve/v3/pkg/util"
 	"github.com/cloudreve/Cloudreve/v3/routers"
@@ -41,6 +48,9 @@ func init() {
 }
 
 func main() {
+	// 关闭数据库连接
+	defer model.DB.Close()
+
 	if isEject {
 		// 开始导出内置静态资源文件
 		bootstrap.Eject(staticFS)
@@ -54,16 +64,35 @@ func main() {
 	}
 
 	api := routers.InitRouter()
+	server := &http.Server{Handler: api}
+
+	// 收到信号后关闭服务器
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGQUIT)
+	go func() {
+		sig := <-sigChan
+		util.Log().Info("收到信号 %s，开始关闭 server", sig)
+		ctx := context.Background()
+		if conf.SystemConfig.GracePeriod != 0 {
+			var cancel context.CancelFunc
+			ctx, cancel = context.WithTimeout(ctx, time.Duration(conf.SystemConfig.GracePeriod)*time.Second)
+			defer cancel()
+		}
+
+		err := server.Shutdown(ctx)
+		if err != nil {
+			util.Log().Error("关闭 server 错误, %s", err)
+		}
+	}()
 
 	// 如果启用了SSL
 	if conf.SSLConfig.CertPath != "" {
-		go func() {
-			util.Log().Info("开始监听 %s", conf.SSLConfig.Listen)
-			if err := api.RunTLS(conf.SSLConfig.Listen,
-				conf.SSLConfig.CertPath, conf.SSLConfig.KeyPath); err != nil {
-				util.Log().Error("无法监听[%s]，%s", conf.SSLConfig.Listen, err)
-			}
-		}()
+		util.Log().Info("开始监听 %s", conf.SSLConfig.Listen)
+		server.Addr = conf.SSLConfig.Listen
+		if err := server.ListenAndServeTLS(conf.SSLConfig.CertPath, conf.SSLConfig.KeyPath); err != nil {
+			util.Log().Error("无法监听[%s]，%s", conf.SSLConfig.Listen, err)
+			return
+		}
 	}
 
 	// 如果启用了Unix
@@ -78,14 +107,26 @@ func main() {
 
 		api.TrustedPlatform = conf.UnixConfig.ProxyHeader
 		util.Log().Info("开始监听 %s", conf.UnixConfig.Listen)
-		if err := api.RunUnix(conf.UnixConfig.Listen); err != nil {
+		if err := RunUnix(server); err != nil {
 			util.Log().Error("无法监听[%s]，%s", conf.UnixConfig.Listen, err)
 		}
 		return
 	}
 
 	util.Log().Info("开始监听 %s", conf.SystemConfig.Listen)
-	if err := api.Run(conf.SystemConfig.Listen); err != nil {
+	server.Addr = conf.SystemConfig.Listen
+	if err := server.ListenAndServe(); err != nil {
 		util.Log().Error("无法监听[%s]，%s", conf.SystemConfig.Listen, err)
 	}
 }
+
+func RunUnix(server *http.Server) error {
+	listener, err := net.Listen("unix", conf.UnixConfig.Listen)
+	if err != nil {
+		return err
+	}
+	defer listener.Close()
+	defer os.Remove(conf.UnixConfig.Listen)
+
+	return server.Serve(listener)
+}