hack verify

cluster-autoscaler/expander/grpcplugin/example/main.go

@@ -1,3 +1,19 @@
+/*
+Copyright 2021 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 package example
 
 import "flag"

cluster-autoscaler/expander/grpcplugin/grpc_client.go

@@ -31,7 +31,7 @@ import (
 	"google.golang.org/grpc/credentials"
 )
 
-const GRPCTimeout = 5 * time.Second
+const gRPCTimeout = 5 * time.Second
 
 type grpcclientstrategy struct {
 	grpcClient protos.ExpanderClient
@@ -52,14 +52,13 @@ func createGRPCClient(expanderCert string, expanderUrl string) protos.ExpanderCl
 	if expanderCert == "" {
 		log.Fatalf("GRPC Expander Cert not specified, insecure connections not allowed")
 		return nil
-	} else {
-		creds, err := credentials.NewClientTLSFromFile(expanderCert, "")
-		if err != nil {
-			log.Fatalf("Failed to create TLS credentials %v", err)
-			return nil
-		}
-		dialOpt = grpc.WithTransportCredentials(creds)
 	}
+	creds, err := credentials.NewClientTLSFromFile(expanderCert, "")
+	if err != nil {
+		log.Fatalf("Failed to create TLS credentials %v", err)
+		return nil
+	}
+	dialOpt = grpc.WithTransportCredentials(creds)
 	klog.V(2).Infof("Dialing: %s with dialopt: %v", expanderUrl, dialOpt)
 	conn, err := grpc.Dial(expanderUrl, dialOpt)
 	if err != nil {
@@ -81,7 +80,7 @@ func (g *grpcclientstrategy) BestOptions(expansionOptions []expander.Option, nod
 
 	// call gRPC server to get BestOption
 	klog.V(2).Infof("GPRC call of best options to server with %v options", len(nodeGroupIDOptionMap))
-	ctx, cancel := context.WithTimeout(context.Background(), GRPCTimeout)
+	ctx, cancel := context.WithTimeout(context.Background(), gRPCTimeout)
 	defer cancel()
 	bestOptionsResponse, err := g.grpcClient.BestOptions(ctx, &protos.BestOptionsRequest{Options: grpcOptionsSlice, NodeMap: grpcNodeMap})
 	if err != nil {

cluster-autoscaler/expander/grpcplugin/protos/expander.pb.go

@@ -1,21 +1,32 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.27.1
-// 	protoc        v3.17.3
-// source: cluster-autoscaler/expander/grpcplugin/protos/expander.proto
+/*
+Copyright 2021 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
 
 package protos
 
 import (
 	context "context"
+	reflect "reflect"
+	sync "sync"
+
 	grpc "google.golang.org/grpc"
 	codes "google.golang.org/grpc/codes"
 	status "google.golang.org/grpc/status"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	v1 "k8s.io/api/core/v1"
-	reflect "reflect"
-	sync "sync"
 )
 
 const (