Update golang dependencies

vendor/k8s.io/client-go/transport/BUILD

@@ -0,0 +1,35 @@
+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+    "go_test",
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = [
+        "cache_test.go",
+        "round_trippers_test.go",
+        "transport_test.go",
+    ],
+    library = ":go_default_library",
+    tags = ["automanaged"],
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "cache.go",
+        "config.go",
+        "round_trippers.go",
+        "transport.go",
+    ],
+    tags = ["automanaged"],
+    deps = [
+        "//vendor/github.com/golang/glog:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/util/net:go_default_library",
+    ],
+)

vendor/k8s.io/client-go/transport/round_trippers.go

@@ -23,6 +23,8 @@ import (
 	"time"
 
 	"github.com/golang/glog"
+
+	utilnet "k8s.io/apimachinery/pkg/util/net"
 )
 
 // HTTPWrappersForConfig wraps a round tripper with any relevant layered
@@ -105,7 +107,7 @@ func NewAuthProxyRoundTripper(username string, groups []string, extra map[string
 }
 
 func (rt *authProxyRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
-	req = cloneRequest(req)
+	req = utilnet.CloneRequest(req)
 	SetAuthProxyHeaders(req, rt.username, rt.groups, rt.extra)
 
 	return rt.rt.RoundTrip(req)
@@ -155,7 +157,7 @@ func (rt *userAgentRoundTripper) RoundTrip(req *http.Request) (*http.Response, e
 	if len(req.Header.Get("User-Agent")) != 0 {
 		return rt.rt.RoundTrip(req)
 	}
-	req = cloneRequest(req)
+	req = utilnet.CloneRequest(req)
 	req.Header.Set("User-Agent", rt.agent)
 	return rt.rt.RoundTrip(req)
 }
@@ -186,7 +188,7 @@ func (rt *basicAuthRoundTripper) RoundTrip(req *http.Request) (*http.Response, e
 	if len(req.Header.Get("Authorization")) != 0 {
 		return rt.rt.RoundTrip(req)
 	}
-	req = cloneRequest(req)
+	req = utilnet.CloneRequest(req)
 	req.SetBasicAuth(rt.username, rt.password)
 	return rt.rt.RoundTrip(req)
 }
@@ -236,7 +238,7 @@ func (rt *impersonatingRoundTripper) RoundTrip(req *http.Request) (*http.Respons
 	if len(req.Header.Get(ImpersonateUserHeader)) != 0 {
 		return rt.delegate.RoundTrip(req)
 	}
-	req = cloneRequest(req)
+	req = utilnet.CloneRequest(req)
 	req.Header.Set(ImpersonateUserHeader, rt.impersonate.UserName)
 
 	for _, group := range rt.impersonate.Groups {
@@ -277,7 +279,7 @@ func (rt *bearerAuthRoundTripper) RoundTrip(req *http.Request) (*http.Response,
 		return rt.rt.RoundTrip(req)
 	}
 
-	req = cloneRequest(req)
+	req = utilnet.CloneRequest(req)
 	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", rt.bearer))
 	return rt.rt.RoundTrip(req)
 }
@@ -292,20 +294,6 @@ func (rt *bearerAuthRoundTripper) CancelRequest(req *http.Request) {
 
 func (rt *bearerAuthRoundTripper) WrappedRoundTripper() http.RoundTripper { return rt.rt }
 
-// cloneRequest returns a clone of the provided *http.Request.
-// The clone is a shallow copy of the struct and its Header map.
-func cloneRequest(r *http.Request) *http.Request {
-	// shallow copy of the struct
-	r2 := new(http.Request)
-	*r2 = *r
-	// deep copy of the Header
-	r2.Header = make(http.Header)
-	for k, s := range r.Header {
-		r2.Header[k] = s
-	}
-	return r2
-}
-
 // requestInfo keeps track of information about a request/response combination
 type requestInfo struct {
 	RequestHeaders http.Header