tech(cli): add default settings for transport

pkg/cmd/grafana-cli/services/services.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"fmt"
 	"io/ioutil"
+	"net"
 	"net/http"
 	"net/url"
 	"path"
@@ -25,7 +26,16 @@ func Init(version string) {
 	grafanaVersion = version
 
 	tr := &http.Transport{
-		Proxy:           http.ProxyFromEnvironment,
+		Proxy: http.ProxyFromEnvironment,
+		DialContext: (&net.Dialer{
+			Timeout:   30 * time.Second,
+			KeepAlive: 30 * time.Second,
+		}).DialContext,
+		MaxIdleConns:          100,
+		IdleConnTimeout:       90 * time.Second,
+		TLSHandshakeTimeout:   10 * time.Second,
+		ExpectContinueTimeout: 1 * time.Second,
+
 		TLSClientConfig: &tls.Config{InsecureSkipVerify: false},
 	}