On client CloseWrite, do CloseWrite instead of Close for backend

Co-authored-by: Mathieu Lonjaret <mathieu.lonjaret@gmail.com>

pkg/provider/docker/config_test.go

@@ -13,6 +13,8 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func Int(v int) *int { return &v }
+
 func TestDefaultRule(t *testing.T) {
 	testCases := []struct {
 		desc        string
@@ -2092,6 +2094,7 @@ func Test_buildConfiguration(t *testing.T) {
 										Address: "127.0.0.1:80",
 									},
 								},
+								TerminationDelay: Int(100),
 							},
 						},
 					},
@@ -2136,6 +2139,7 @@ func Test_buildConfiguration(t *testing.T) {
 										Address: "127.0.0.1:80",
 									},
 								},
+								TerminationDelay: Int(100),
 							},
 						},
 					},
@@ -2190,6 +2194,7 @@ func Test_buildConfiguration(t *testing.T) {
 										Address: "127.0.0.1:8080",
 									},
 								},
+								TerminationDelay: Int(100),
 							},
 						},
 					},
@@ -2268,6 +2273,7 @@ func Test_buildConfiguration(t *testing.T) {
 										Address: "127.0.0.2:8080",
 									},
 								},
+								TerminationDelay: Int(100),
 							},
 						},
 					},
@@ -2331,6 +2337,53 @@ func Test_buildConfiguration(t *testing.T) {
 										Address: "127.0.0.1:8080",
 									},
 								},
+								TerminationDelay: Int(100),
+							},
+						},
+					},
+				},
+				HTTP: &dynamic.HTTPConfiguration{
+					Routers:     map[string]*dynamic.Router{},
+					Middlewares: map[string]*dynamic.Middleware{},
+					Services:    map[string]*dynamic.Service{},
+				},
+			},
+		},
+		{
+			desc: "tcp with label for tcp service, with termination delay",
+			containers: []dockerData{
+				{
+					ServiceName: "Test",
+					Name:        "Test",
+					Labels: map[string]string{
+						"traefik.tcp.services.foo.loadbalancer.server.port":      "8080",
+						"traefik.tcp.services.foo.loadbalancer.terminationdelay": "200",
+					},
+					NetworkSettings: networkSettings{
+						Ports: nat.PortMap{
+							nat.Port("80/tcp"): []nat.PortBinding{},
+						},
+						Networks: map[string]*networkData{
+							"bridge": {
+								Name: "bridge",
+								Addr: "127.0.0.1",
+							},
+						},
+					},
+				},
+			},
+			expected: &dynamic.Configuration{
+				TCP: &dynamic.TCPConfiguration{
+					Routers: map[string]*dynamic.TCPRouter{},
+					Services: map[string]*dynamic.TCPService{
+						"foo": {
+							LoadBalancer: &dynamic.TCPLoadBalancerService{
+								Servers: []dynamic.TCPServer{
+									{
+										Address: "127.0.0.1:8080",
+									},
+								},
+								TerminationDelay: Int(200),
 							},
 						},
 					},