close tikv#4490: add teset

Signed-off-by: Cabinfever_B <cabinfeveroier@gmail.com>

tools/pd-ctl/pdctl/command/global.go

@@ -26,6 +26,7 @@ import (
 	"github.com/pingcap/errors"
 	"github.com/spf13/cobra"
 	"github.com/tikv/pd/pkg/apiutil"
+	"go.etcd.io/etcd/pkg/transport"
 )
 
 var (
@@ -35,11 +36,21 @@ var (
 
 // InitHTTPSClient creates https client with ca file
 func InitHTTPSClient(caPath, certPath, keyPath string) error {
+	tlsInfo := transport.TLSInfo{
+		CertFile:      certPath,
+		KeyFile:       keyPath,
+		TrustedCAFile: caPath,
+	}
+	tlsConfig, err := tlsInfo.ClientConfig()
+	if err != nil {
+		return errors.WithStack(err)
+	}
 
 	dialClient = &http.Client{
 		Transport: &apiutil.UserSignatureRoundTripper{
 			Component: "pdctl",
-			Proxied:   http.DefaultTransport,
+			Proxied: &http.Transport{
+				TLSClientConfig: tlsConfig},
 		},
 	}