Merge remote-tracking branch 'origin/master' into release-1.11

Kubernetes-commit: 6c7f566c355620c8f664adb8123586a8a92b4500

vendor/k8s.io/apimachinery/pkg/util/net/http.go

@@ -19,6 +19,7 @@ package net
 import (
 	"bufio"
 	"bytes"
+	"context"
 	"crypto/tls"
 	"fmt"
 	"io"
@@ -90,8 +91,8 @@ func SetOldTransportDefaults(t *http.Transport) *http.Transport {
 		// ProxierWithNoProxyCIDR allows CIDR rules in NO_PROXY
 		t.Proxy = NewProxierWithNoProxyCIDR(http.ProxyFromEnvironment)
 	}
-	if t.Dial == nil {
-		t.Dial = defaultTransport.Dial
+	if t.DialContext == nil {
+		t.DialContext = defaultTransport.DialContext
 	}
 	if t.TLSHandshakeTimeout == 0 {
 		t.TLSHandshakeTimeout = defaultTransport.TLSHandshakeTimeout
@@ -119,7 +120,7 @@ type RoundTripperWrapper interface {
 	WrappedRoundTripper() http.RoundTripper
 }
 
-type DialFunc func(net, addr string) (net.Conn, error)
+type DialFunc func(ctx context.Context, net, addr string) (net.Conn, error)
 
 func DialerFor(transport http.RoundTripper) (DialFunc, error) {
 	if transport == nil {
@@ -128,7 +129,7 @@ func DialerFor(transport http.RoundTripper) (DialFunc, error) {
 
 	switch transport := transport.(type) {
 	case *http.Transport:
-		return transport.Dial, nil
+		return transport.DialContext, nil
 	case RoundTripperWrapper:
 		return DialerFor(transport.WrappedRoundTripper())
 	default: