增加链路追踪配置，优化服务退出流程，gf版本升级到v2.4.2

server/internal/cmd/handler_shutdown.go

@@ -7,7 +7,9 @@ package cmd
 
 import (
 	"context"
+	"github.com/gogf/gf/v2/os/gctx"
 	"github.com/gogf/gf/v2/os/gproc"
+	"hotgo/internal/consts"
 	"hotgo/utility/simple"
 	"os"
 	"sync"
@@ -16,15 +18,27 @@ import (
 var (
 	serverCloseSignal = make(chan struct{}, 1)
 	serverWg          = sync.WaitGroup{}
+	once              sync.Once
 )
 
+// signalHandlerForOverall 关闭信号处理
 func signalHandlerForOverall(sig os.Signal) {
 	serverCloseSignal <- struct{}{}
+	serverCloseEvent(gctx.GetInitCtx())
 }
 
+// signalListen 信号监听
 func signalListen(ctx context.Context, handler ...gproc.SigHandler) {
 	simple.SafeGo(ctx, func(ctx context.Context) {
 		gproc.AddSigHandlerShutdown(handler...)
 		gproc.Listen()
 	})
 }
+
+// serverCloseEvent 关闭事件
+// 区别于服务收到退出信号后的处理，只会执行一次
+func serverCloseEvent(ctx context.Context) {
+	once.Do(func() {
+		simple.Event().Call(consts.EventServerClose, ctx)
+	})
+}