add tls configs for grpc client connection

Signed-off-by: alex60217101990 <[email protected]>

Signed-off-by: Daniel Yavorovych <[email protected]>

pkg/scalers/predictkube_scaler.go

@@ -2,6 +2,7 @@ package scalers
 
 import (
 	"context"
+	"crypto/tls"
 	"errors"
 	"fmt"
 	"math"
@@ -14,13 +15,14 @@ import (
 	tc "github.com/dysnix/predictkube-libs/external/types_convertation"
 	"github.com/dysnix/predictkube-proto/external/proto/commonproto"
 	pb "github.com/dysnix/predictkube-proto/external/proto/services"
-	validator "github.com/go-playground/validator/v10"
+	"github.com/go-playground/validator/v10"
 	kedautil "github.com/kedacore/keda/v2/pkg/util"
 	"github.com/prometheus/client_golang/api"
 	v1 "github.com/prometheus/client_golang/api/prometheus/v1"
 	"github.com/prometheus/common/model"
-	str2duration "github.com/xhit/go-str2duration/v2"
+	"github.com/xhit/go-str2duration/v2"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
 	health "google.golang.org/grpc/health/grpc_health_v1"
 	"google.golang.org/grpc/status"
 	"k8s.io/api/autoscaling/v2beta2"
@@ -36,8 +38,8 @@ const (
 )
 
 var (
-	mlEngineHost = "predictkube-dev.dysnix.org"
-	mlEnginePort = 8080
+	mlEngineHost = "api.predictkube.com"
+	mlEnginePort = 443
 
 	defaultStep = time.Minute * 5
 )
@@ -79,7 +81,7 @@ func (pks *PredictKubeScaler) setupClientConn() error {
 			ReadBufferSize:  50 << 20,
 			WriteBufferSize: 50 << 20,
 			MaxMessageSize:  50 << 20,
-			Insecure:        true,
+			Insecure:        false,
 			Timeout:         time.Second * 15,
 		},
 		Keepalive: &libs.Keepalive{
@@ -106,6 +108,12 @@ func (pks *PredictKubeScaler) setupClientConn() error {
 		pc.InjectPublicClientMetadataInterceptor(pks.metadata.apiKey),
 	)
 
+	clientOpt = append(clientOpt, grpc.WithTransportCredentials(
+		credentials.NewTLS(&tls.Config{
+			ServerName: mlEngineHost,
+		}),
+	))
+
 	if err != nil {
 		return err
 	}