Add error logger to http server (#2242)

* add error logger to http server

Signed-off-by: MonzElmasry <menna.elmasry@rancher.com>

pkg/cluster/https.go

@@ -3,6 +3,7 @@ package cluster
 import (
 	"context"
 	"crypto/tls"
+	"log"
 	"net"
 	"net/http"
 	"path/filepath"
@@ -60,7 +61,8 @@ func (c *Cluster) initClusterAndHTTPS(ctx context.Context) error {
 	}
 
 	server := http.Server{
-		Handler: handler,
+		Handler:  handler,
+		ErrorLog: log.New(logrus.StandardLogger().Writer(), "Cluster-Http-Server ", log.LstdFlags),
 	}
 
 	go func() {