diff --git a/config/configmap/configmap.yaml b/config/configmap/configmap.yaml
index dafda19..8add0fa 100644
--- a/config/configmap/configmap.yaml
+++ b/config/configmap/configmap.yaml
@@ -12,6 +12,6 @@ data:
     }
   ingress: |-
     {
-        "ingressGateway": "paddleflow/paddleflow-gateway",
-        "ingressServiceName": "*"
+        "ingressGateway" : "istio-ingressgateway",
+        "ingressServiceName" : "istio-ingressgateway.istio-system.svc.cluster.local"
     }
\ No newline at end of file
diff --git a/config/samples/elasticserving_v1_paddle.yaml b/config/samples/elasticserving_v1_paddle.yaml
index eaf7dd5..b6eb917 100644
--- a/config/samples/elasticserving_v1_paddle.yaml
+++ b/config/samples/elasticserving_v1_paddle.yaml
@@ -9,6 +9,5 @@ spec:
   storageUri: hub.baidubce.com/paddlepaddle/serving:latest
   runtimeVersion: paddleserving
   service:
-    minScale: 2
-  # storageUri: nginx:latest
-  # runtimeVersion: nginx
\ No newline at end of file
+    minScale: 1
+    concurrency: "cpu"
\ No newline at end of file
diff --git a/pkg/constants/constants.go b/pkg/constants/constants.go
index d2ac4ff..86cdc37 100644
--- a/pkg/constants/constants.go
+++ b/pkg/constants/constants.go
@@ -23,8 +23,8 @@ var (
 
 // PaddleService resource defaults
 var (
-	PaddleServiceDefaultCPU                               = "0.1"
-	PaddleServiceDefaultMemory                            = "128Mi"
+	PaddleServiceDefaultCPU                               = "0.2"
+	PaddleServiceDefaultMemory                            = "512Mi"
 	PaddleServiceDefaultMinScale                          = 1  // 0 if scale-to-zero is desired
 	PaddleServiceDefaultMaxScale                          = 10 // 0 means limitless
 	PaddleServiceDefaultTimeout                     int64 = 300
diff --git a/pkg/controllers/elasticserving/resources/istio/virtualservice.go b/pkg/controllers/elasticserving/resources/istio/virtualservice.go
index 170e748..cb73b49 100644
--- a/pkg/controllers/elasticserving/resources/istio/virtualservice.go
+++ b/pkg/controllers/elasticserving/resources/istio/virtualservice.go
@@ -2,6 +2,7 @@ package istio
 
 import (
 	elasticservingv1 "ElasticServing/pkg/apis/elasticserving/v1"
+	"ElasticServing/pkg/constants"
 	"fmt"
 
 	istiov1alpha3 "istio.io/api/networking/v1alpha3"
@@ -31,15 +32,20 @@ func NewVirtualServiceBuilder(configMap *core.ConfigMap) *VirtualServiceBuilder
 	ingressConfig.IngressGateway = istioIngressConfig.IngressGateway
 	ingressConfig.IngressServiceName = istioIngressConfig.IngressServiceName
 
+	if ingressConfig.IngressGateway == "" || ingressConfig.IngressServiceName == "" {
+		panic(fmt.Errorf("Invalid ingress config, ingressGateway and ingressService are required."))
+	}
+
 	return &VirtualServiceBuilder{ingressConfig: ingressConfig}
 }
 
 func (r *VirtualServiceBuilder) CreateVirtualService(paddlesvc *elasticservingv1.PaddleService) *v1alpha3.VirtualService {
-	clusterDomain := "cluster.local"
+	// clusterDomain := "cluster.local"
 	prefix := fmt.Sprintf("/paddlepaddle/%s/%s/", paddlesvc.Namespace, paddlesvc.Name)
 	rewrite := fmt.Sprintf("/paddlepaddle/%s/%s/", paddlesvc.Namespace, paddlesvc.Name)
 
-	service := fmt.Sprintf("%s.%s.svc.%s", paddlesvc.ObjectMeta.Name, paddlesvc.ObjectMeta.Namespace, clusterDomain)
+	// service := fmt.Sprintf("%s.%s.svc.%s", paddlesvc.Name, paddlesvc.Namespace, clusterDomain)
+	service := constants.DefaultServiceName(paddlesvc.Name)
 
 	istioGateway := r.ingressConfig.IngressGateway
 	host := r.ingressConfig.IngressServiceName
@@ -50,10 +56,10 @@ func (r *VirtualServiceBuilder) CreateVirtualService(paddlesvc *elasticservingv1
 			Kind:       "VirtualService",
 		},
 		ObjectMeta: metav1.ObjectMeta{
-			Name:        paddlesvc.ObjectMeta.Name,
-			Namespace:   paddlesvc.ObjectMeta.Namespace,
-			Labels:      paddlesvc.ObjectMeta.Labels,
-			Annotations: paddlesvc.ObjectMeta.Annotations,
+			Name:        paddlesvc.Name,
+			Namespace:   paddlesvc.Namespace,
+			Labels:      paddlesvc.Labels,
+			Annotations: paddlesvc.Annotations,
 		},
 		Spec: istiov1alpha3.VirtualService{
 			Hosts:    []string{host},
diff --git a/pkg/controllers/elasticserving/resources/knative/service.go b/pkg/controllers/elasticserving/resources/knative/service.go
index 70fd000..12574a0 100644
--- a/pkg/controllers/elasticserving/resources/knative/service.go
+++ b/pkg/controllers/elasticserving/resources/knative/service.go
@@ -52,6 +52,15 @@ func (r *ServiceBuilder) CreateService(serviceName string, paddlesvc *elasticser
 	}
 	concurrency := int64(paddlesvcSpec.Service.Target)
 
+	command := []string{"/bin/bash", "-c"}
+	args := []string{
+		`pip install paddle-serving-server==0.4.0;
+		pip install paddle-serving-client==0.4.0;
+		pip install paddle-serving-app==0.2.0;
+		wget --no-check-certificate https://paddle-serving.bj.bcebos.com/uci_housing.tar.gz;
+		tar -xzf uci_housing.tar.gz &&
+		python -m paddle_serving_server.serve --model uci_housing_model --thread 1 --port 9292`,
+	}
 	service := &knservingv1.Service{
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      serviceName,
@@ -79,9 +88,14 @@ func (r *ServiceBuilder) CreateService(serviceName string, paddlesvc *elasticser
 									Ports: []core.ContainerPort{
 										{ContainerPort: r.serviceConfig.Port, Name: constants.PaddleServiceDefaultPodName, Protocol: core.ProtocolTCP},
 									},
+									Command: command,
+									Args:    args,
 									ReadinessProbe: &core.Probe{
-										SuccessThreshold:    5,
-										InitialDelaySeconds: 5,
+										SuccessThreshold:    1,
+										InitialDelaySeconds: 0,
+										TimeoutSeconds:      1,
+										FailureThreshold:    100,
+										PeriodSeconds:       100,
 										Handler: core.Handler{
 											TCPSocket: &core.TCPSocketAction{
 												Port: intstr.FromInt(0),
@@ -91,7 +105,6 @@ func (r *ServiceBuilder) CreateService(serviceName string, paddlesvc *elasticser
 									Resources: resources,
 								},
 							},
-							//RestartPolicy: core.RestartPolicyAlways,
 						},
 					},
 				},