chore: update to go1.19

pkg/server/router/router_test.go

@@ -827,7 +827,7 @@ func BenchmarkRouterServe(b *testing.B) {
 	b.Cleanup(func() { server.Close() })
 
 	res := &http.Response{
-		StatusCode: 200,
+		StatusCode: http.StatusOK,
 		Body:       io.NopCloser(strings.NewReader("")),
 	}
 
@@ -879,7 +879,7 @@ func BenchmarkRouterServe(b *testing.B) {
 
 func BenchmarkService(b *testing.B) {
 	res := &http.Response{
-		StatusCode: 200,
+		StatusCode: http.StatusOK,
 		Body:       io.NopCloser(strings.NewReader("")),
 	}
 

pkg/server/router/tcp/router_test.go

@@ -9,6 +9,7 @@ import (
 	"io"
 	"net"
 	"net/http"
+	"net/url"
 	"strings"
 	"testing"
 	"time"
@@ -109,8 +110,13 @@ func Test_Routing(t *testing.T) {
 		for {
 			conn, err := tcpBackendListener.Accept()
 			if err != nil {
-				var netErr net.Error
-				if errors.As(err, &netErr) && netErr.Temporary() {
+				var opErr *net.OpError
+				if errors.As(err, &opErr) && opErr.Temporary() {
+					continue
+				}
+
+				var urlErr *url.Error
+				if errors.As(err, &urlErr) && urlErr.Temporary() {
 					continue
 				}
 

pkg/server/server_entrypoint_tcp.go

@@ -7,6 +7,7 @@ import (
 	stdlog "log"
 	"net"
 	"net/http"
+	"net/url"
 	"os"
 	"strings"
 	"sync"
@@ -195,8 +196,13 @@ func (e *TCPEntryPoint) Start(ctx context.Context) {
 		if err != nil {
 			logger.Error(err)
 
-			var netErr net.Error
-			if errors.As(err, &netErr) && netErr.Temporary() {
+			var opErr *net.OpError
+			if errors.As(err, &opErr) && opErr.Temporary() {
+				continue
+			}
+
+			var urlErr *url.Error
+			if errors.As(err, &urlErr) && urlErr.Temporary() {
 				continue
 			}
 

pkg/server/server_entrypoint_tcp_http3.go

@@ -8,7 +8,6 @@ import (
 	"net"
 	"net/http"
 	"sync"
-	"time"
 
 	"github.com/lucas-clemente/quic-go/http3"
 	"github.com/traefik/traefik/v2/pkg/config/static"
@@ -47,24 +46,17 @@ func newHTTP3Server(ctx context.Context, configuration *static.EntryPoint, https
 	}
 
 	h3.Server = &http3.Server{
-		Port: configuration.HTTP3.AdvertisedPort,
-		Server: &http.Server{
-			Addr:         configuration.GetAddress(),
-			Handler:      httpsServer.Server.(*http.Server).Handler,
-			ErrorLog:     httpServerLogger,
-			ReadTimeout:  time.Duration(configuration.Transport.RespondingTimeouts.ReadTimeout),
-			WriteTimeout: time.Duration(configuration.Transport.RespondingTimeouts.WriteTimeout),
-			IdleTimeout:  time.Duration(configuration.Transport.RespondingTimeouts.IdleTimeout),
-			TLSConfig:    &tls.Config{GetConfigForClient: h3.getGetConfigForClient},
-		},
+		Addr:      configuration.GetAddress(),
+		Port:      configuration.HTTP3.AdvertisedPort,
+		Handler:   httpsServer.Server.(*http.Server).Handler,
+		TLSConfig: &tls.Config{GetConfigForClient: h3.getGetConfigForClient},
 	}
 
 	previousHandler := httpsServer.Server.(*http.Server).Handler
 
 	httpsServer.Server.(*http.Server).Handler = http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
-		err := h3.Server.SetQuicHeaders(rw.Header())
-		if err != nil {
-			log.FromContext(ctx).Errorf("failed to set HTTP3 headers: %v", err)
+		if err := h3.Server.SetQuicHeaders(rw.Header()); err != nil {
+			log.FromContext(ctx).Errorf("Failed to set HTTP3 headers: %v", err)
 		}
 
 		previousHandler.ServeHTTP(rw, req)
@@ -90,3 +82,8 @@ func (e *http3server) getGetConfigForClient(info *tls.ClientHelloInfo) (*tls.Con
 
 	return e.getter(info)
 }
+
+func (e *http3server) Shutdown(_ context.Context) error {
+	// TODO: use e.Server.CloseGracefully() when available.
+	return e.Server.Close()
+}

pkg/server/service/proxy_test.go

@@ -20,7 +20,7 @@ func (t *staticTransport) RoundTrip(r *http.Request) (*http.Response, error) {
 
 func BenchmarkProxy(b *testing.B) {
 	res := &http.Response{
-		StatusCode: 200,
+		StatusCode: http.StatusOK,
 		Body:       io.NopCloser(strings.NewReader("")),
 	}
 

pkg/server/service/proxy_websocket_test.go

@@ -456,7 +456,7 @@ func TestWebSocketUpgradeFailed(t *testing.T) {
 
 	mux := http.NewServeMux()
 	mux.HandleFunc("/ws", func(w http.ResponseWriter, req *http.Request) {
-		w.WriteHeader(400)
+		w.WriteHeader(http.StatusBadRequest)
 	})
 	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		mux.ServeHTTP(w, req)
@@ -472,7 +472,7 @@ func TestWebSocketUpgradeFailed(t *testing.T) {
 			req.URL.Path = path
 			f.ServeHTTP(w, req)
 		} else {
-			w.WriteHeader(200)
+			w.WriteHeader(http.StatusOK)
 		}
 	}))
 	defer proxy.Close()