chore: Remove reference of deprecated ioutil package and grpc methods

driver/mock.go

@@ -21,6 +21,7 @@ import (
 
 	"github.com/container-storage-interface/spec/lib/go/csi"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 
 	"github.com/kubernetes-csi/csi-test/v5/utils"
 )
@@ -91,7 +92,7 @@ func (m *MockCSIDriver) Nexus() (*grpc.ClientConn, error) {
 	}
 
 	// Create a client connection
-	m.conn, err = utils.Connect(m.Address(), grpc.WithInsecure())
+	m.conn, err = utils.Connect(m.Address(), grpc.WithTransportCredentials(insecure.NewCredentials()))
 	if err != nil {
 		return nil, err
 	}

pkg/sanity/sanity.go

@@ -20,7 +20,6 @@ import (
 	"context"
 	"crypto/rand"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"strings"
@@ -30,6 +29,7 @@ import (
 	yaml "gopkg.in/yaml.v2"
 
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
@@ -72,7 +72,7 @@ type TestConfig struct {
 	Address string
 
 	// DialOptions specifies the options that are to be used
-	// when connecting to Address. The default is grpc.WithInsecure().
+	// when connecting to Address. The default is grpc.WithTransportCredentials(insecure.NewCredentials()).
 	// A dialer will be added for Unix Domain Sockets.
 	DialOptions []grpc.DialOption
 
@@ -204,8 +204,8 @@ func NewTestConfig() TestConfig {
 		IdempotentCount:      10,
 		CheckPathCmdTimeout:  10 * time.Second,
 
-		DialOptions:           []grpc.DialOption{grpc.WithInsecure(), grpc.WithAuthority("localhost")},
-		ControllerDialOptions: []grpc.DialOption{grpc.WithInsecure(), grpc.WithAuthority("localhost")},
+		DialOptions:           []grpc.DialOption{grpc.WithTransportCredentials(insecure.NewCredentials()), grpc.WithAuthority("localhost")},
+		ControllerDialOptions: []grpc.DialOption{grpc.WithTransportCredentials(insecure.NewCredentials()), grpc.WithAuthority("localhost")},
 	}
 }
 
@@ -340,7 +340,6 @@ func (sc *TestContext) Finalize() {
 // target path using a custom command, custom function or falls back to the
 // default using mkdir and returns the new target path.
 func createMountTargetLocation(targetPath string, createPathCmd string, customCreateDir func(string) (string, error), timeout time.Duration) (string, error) {
-
 	// Return the target path if empty.
 	if targetPath == "" {
 		return targetPath, nil
@@ -413,7 +412,7 @@ func removeMountTargetLocation(targetPath string, removePathCmd string, customRe
 func loadSecrets(path string) (*CSISecrets, error) {
 	var creds CSISecrets
 
-	yamlFile, err := ioutil.ReadFile(path)
+	yamlFile, err := os.ReadFile(path)
 	if err != nil {
 		return &creds, fmt.Errorf("failed to read file %q: #%v", path, err)
 	}
@@ -429,7 +428,7 @@ func loadSecrets(path string) (*CSISecrets, error) {
 // loadFromFile reads struct from given file path.
 func loadFromFile(from string, to interface{}) {
 	if len(from) != 0 {
-		yamlFile, err := ioutil.ReadFile(from)
+		yamlFile, err := os.ReadFile(from)
 		if err != nil {
 			panic(fmt.Sprintf("failed to read file %q: %v", from, err))
 		}

test/driver_test.go

@@ -24,6 +24,7 @@ import (
 	"github.com/container-storage-interface/spec/lib/go/csi"
 	"github.com/kubernetes-csi/csi-test/v5/utils"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 	"google.golang.org/grpc/reflection"
 )
 
@@ -47,7 +48,8 @@ func (s *simpleDriver) Probe(context.Context, *csi.ProbeRequest) (*csi.ProbeResp
 }
 
 func (s *simpleDriver) GetPluginInfo(
-	context.Context, *csi.GetPluginInfoRequest) (*csi.GetPluginInfoResponse, error) {
+	context.Context, *csi.GetPluginInfoRequest,
+) (*csi.GetPluginInfoResponse, error) {
 	return &csi.GetPluginInfoResponse{
 		Name:          "simpleDriver",
 		VendorVersion: "0.1.1",
@@ -95,7 +97,6 @@ func (s *simpleDriver) Stop() {
 
 // Tests
 func TestSimpleDriver(t *testing.T) {
-
 	// Setup simple driver
 	s := &simpleDriver{}
 	err := s.Start()
@@ -105,7 +106,7 @@ func TestSimpleDriver(t *testing.T) {
 	defer s.Stop()
 
 	// Setup a connection to the driver
-	conn, err := utils.Connect(s.Address(), grpc.WithInsecure())
+	conn, err := utils.Connect(s.Address(), grpc.WithTransportCredentials(insecure.NewCredentials()))
 	if err != nil {
 		t.Errorf("Error: %s", err.Error())
 	}

utils/grpcutil.go

@@ -38,7 +38,7 @@ func Connect(address string, dialOptions ...grpc.DialOption) (*grpc.ClientConn,
 				}))
 	}
 
-	conn, err := grpc.Dial(address, dialOptions...)
+	conn, err := grpc.NewClient(address, dialOptions...)
 	if err != nil {
 		return nil, err
 	}