use dep as denpendency managment tool

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

@@ -20,6 +20,7 @@ import (
 	"crypto/tls"
 	"net/http"
 
+	"k8s.io/client-go/plugin/pkg/client/auth/exec"
 	"k8s.io/client-go/transport"
 )
 
@@ -59,6 +60,20 @@ func HTTPWrappersForConfig(config *Config, rt http.RoundTripper) (http.RoundTrip
 // TransportConfig converts a client config to an appropriate transport config.
 func (c *Config) TransportConfig() (*transport.Config, error) {
 	wt := c.WrapTransport
+	if c.ExecProvider != nil {
+		provider, err := exec.GetAuthenticator(c.ExecProvider)
+		if err != nil {
+			return nil, err
+		}
+		if wt != nil {
+			previousWT := wt
+			wt = func(rt http.RoundTripper) http.RoundTripper {
+				return provider.WrapTransport(previousWT(rt))
+			}
+		} else {
+			wt = provider.WrapTransport
+		}
+	}
 	if c.AuthProvider != nil {
 		provider, err := GetAuthProvider(c.Host, c.AuthProvider, c.AuthConfigPersister)
 		if err != nil {
@@ -89,7 +104,6 @@ func (c *Config) TransportConfig() (*transport.Config, error) {
 		},
 		Username:    c.Username,
 		Password:    c.Password,
-		CacheDir:    c.CacheDir,
 		BearerToken: c.BearerToken,
 		Impersonate: transport.ImpersonationConfig{
 			UserName: c.Impersonate.UserName,