replace pkg/util/file with k8s.io/utils/path

cmd/kubeadm/.import-restrictions

@@ -41,6 +41,7 @@
 			"AllowedPrefixes": [
 				"k8s.io/utils/exec",
 				"k8s.io/utils/integer",
+				"k8s.io/utils/path",
 				"k8s.io/utils/pointer"
 			]
 		},
@@ -77,7 +78,6 @@
 				"k8s.io/kubernetes/pkg/scheduler/util",
 				"k8s.io/kubernetes/pkg/security/apparmor",
 				"k8s.io/kubernetes/pkg/serviceaccount",
-				"k8s.io/kubernetes/pkg/util/file",
 				"k8s.io/kubernetes/pkg/util/hash",
 				"k8s.io/kubernetes/pkg/util/initsystem",
 				"k8s.io/kubernetes/pkg/util/ipvs",

hack/.golint_failures

@@ -355,7 +355,6 @@ pkg/util/bandwidth
 pkg/util/config
 pkg/util/ebtables
 pkg/util/env
-pkg/util/file
 pkg/util/goroutinemap/exponentialbackoff
 pkg/util/initsystem
 pkg/util/iptables

pkg/controller/.import-restrictions

@@ -307,7 +307,6 @@
         "k8s.io/kubernetes/pkg/scheduler/api",
         "k8s.io/kubernetes/pkg/scheduler/util",
         "k8s.io/kubernetes/pkg/security/apparmor",
-        "k8s.io/kubernetes/pkg/util/file",
         "k8s.io/kubernetes/pkg/util/net/sets",
         "k8s.io/kubernetes/pkg/util/parsers",
         "k8s.io/kubernetes/pkg/fieldpath",
@@ -340,6 +339,7 @@
         "k8s.io/utils/nsenter",
         "k8s.io/utils/integer",
         "k8s.io/utils/io",
+        "k8s.io/utils/path",
         "k8s.io/utils/pointer",
         "k8s.io/utils/exec"
       ]

pkg/kubectl/.import-restrictions

@@ -126,7 +126,6 @@
                 "k8s.io/kubernetes/pkg/scheduler/volumebinder",
                 "k8s.io/kubernetes/pkg/security/apparmor",
                 "k8s.io/kubernetes/pkg/serviceaccount",
-                "k8s.io/kubernetes/pkg/util/file",
                 "k8s.io/kubernetes/pkg/util/goroutinemap",
                 "k8s.io/kubernetes/pkg/util/hash",
                 "k8s.io/kubernetes/pkg/util/interrupt",
@@ -144,6 +143,7 @@
                 "k8s.io/kubernetes/pkg/volume/util",
                 "k8s.io/utils/nsenter",
                 "k8s.io/utils/io",
+                "k8s.io/utils/path",
                 "k8s.io/utils/pointer"
 		],
 		"ForbiddenPrefixes": []

pkg/kubelet/BUILD

@@ -103,7 +103,6 @@ go_library(
         "//pkg/security/podsecuritypolicy/sysctl:go_default_library",
         "//pkg/securitycontext:go_default_library",
         "//pkg/util/dbus:go_default_library",
-        "//pkg/util/file:go_default_library",
         "//pkg/util/iptables:go_default_library",
         "//pkg/util/mount:go_default_library",
         "//pkg/util/node:go_default_library",
@@ -150,6 +149,7 @@ go_library(
         "//vendor/k8s.io/klog:go_default_library",
         "//vendor/k8s.io/utils/exec:go_default_library",
         "//vendor/k8s.io/utils/integer:go_default_library",
+        "//vendor/k8s.io/utils/path:go_default_library",
     ],
 )
 

pkg/kubelet/cm/BUILD

@@ -74,7 +74,6 @@ go_library(
             "//pkg/kubelet/metrics:go_default_library",
             "//pkg/kubelet/qos:go_default_library",
             "//pkg/kubelet/types:go_default_library",
-            "//pkg/util/file:go_default_library",
             "//pkg/util/mount:go_default_library",
             "//pkg/util/oom:go_default_library",
             "//pkg/util/procfs:go_default_library",
@@ -88,6 +87,7 @@ go_library(
             "//vendor/github.com/opencontainers/runc/libcontainer/cgroups/fs:go_default_library",
             "//vendor/github.com/opencontainers/runc/libcontainer/cgroups/systemd:go_default_library",
             "//vendor/github.com/opencontainers/runc/libcontainer/configs:go_default_library",
+            "//vendor/k8s.io/utils/path:go_default_library",
         ],
         "@io_bazel_rules_go//go/platform:nacl": [
             "//pkg/kubelet/cadvisor:go_default_library",

pkg/kubelet/cm/container_manager_linux.go

@@ -56,11 +56,11 @@ import (
 	"k8s.io/kubernetes/pkg/kubelet/status"
 	"k8s.io/kubernetes/pkg/kubelet/util/pluginwatcher"
 	schedulernodeinfo "k8s.io/kubernetes/pkg/scheduler/nodeinfo"
-	utilfile "k8s.io/kubernetes/pkg/util/file"
 	"k8s.io/kubernetes/pkg/util/mount"
 	"k8s.io/kubernetes/pkg/util/oom"
 	"k8s.io/kubernetes/pkg/util/procfs"
 	utilsysctl "k8s.io/kubernetes/pkg/util/sysctl"
+	utilpath "k8s.io/utils/path"
 )
 
 const (
@@ -179,11 +179,11 @@ func validateSystemRequirements(mountUtil mount.Interface) (features, error) {
 
 	// Check if cpu quota is available.
 	// CPU cgroup is required and so it expected to be mounted at this point.
-	periodExists, err := utilfile.FileExists(path.Join(cpuMountPoint, "cpu.cfs_period_us"))
+	periodExists, err := utilpath.Exists(utilpath.CheckFollowSymlink, path.Join(cpuMountPoint, "cpu.cfs_period_us"))
 	if err != nil {
 		klog.Errorf("failed to detect if CPU cgroup cpu.cfs_period_us is available - %v", err)
 	}
-	quotaExists, err := utilfile.FileExists(path.Join(cpuMountPoint, "cpu.cfs_quota_us"))
+	quotaExists, err := utilpath.Exists(utilpath.CheckFollowSymlink, path.Join(cpuMountPoint, "cpu.cfs_quota_us"))
 	if err != nil {
 		klog.Errorf("failed to detect if CPU cgroup cpu.cfs_quota_us is available - %v", err)
 	}

pkg/kubelet/kubelet_getters.go

@@ -30,9 +30,9 @@ import (
 	"k8s.io/kubernetes/pkg/kubelet/cm"
 	"k8s.io/kubernetes/pkg/kubelet/config"
 	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
-	utilfile "k8s.io/kubernetes/pkg/util/file"
 	"k8s.io/kubernetes/pkg/util/mount"
 	utilnode "k8s.io/kubernetes/pkg/util/node"
+	utilpath "k8s.io/utils/path"
 )
 
 // getRootDir returns the full path to the directory under which kubelet can
@@ -293,7 +293,7 @@ func (kl *Kubelet) getPodVolumePathListFromDisk(podUID types.UID) ([]string, err
 	for _, volumePluginDir := range volumePluginDirs {
 		volumePluginName := volumePluginDir.Name()
 		volumePluginPath := filepath.Join(podVolDir, volumePluginName)
-		volumeDirs, err := utilfile.ReadDirNoStat(volumePluginPath)
+		volumeDirs, err := utilpath.ReadDirNoStat(volumePluginPath)
 		if err != nil {
 			return volumes, fmt.Errorf("Could not read directory %s: %v", volumePluginPath, err)
 		}

pkg/kubelet/volumemanager/reconciler/BUILD

@@ -14,7 +14,6 @@ go_library(
         "//pkg/features:go_default_library",
         "//pkg/kubelet/config:go_default_library",
         "//pkg/kubelet/volumemanager/cache:go_default_library",
-        "//pkg/util/file:go_default_library",
         "//pkg/util/goroutinemap/exponentialbackoff:go_default_library",
         "//pkg/util/mount:go_default_library",
         "//pkg/util/strings:go_default_library",
@@ -30,6 +29,7 @@ go_library(
         "//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
         "//staging/src/k8s.io/client-go/kubernetes:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
+        "//vendor/k8s.io/utils/path:go_default_library",
     ],
 )
 

pkg/kubelet/volumemanager/reconciler/reconciler.go

@@ -36,7 +36,6 @@ import (
 	"k8s.io/kubernetes/pkg/features"
 	"k8s.io/kubernetes/pkg/kubelet/config"
 	"k8s.io/kubernetes/pkg/kubelet/volumemanager/cache"
-	utilfile "k8s.io/kubernetes/pkg/util/file"
 	"k8s.io/kubernetes/pkg/util/goroutinemap/exponentialbackoff"
 	"k8s.io/kubernetes/pkg/util/mount"
 	utilstrings "k8s.io/kubernetes/pkg/util/strings"
@@ -45,6 +44,7 @@ import (
 	"k8s.io/kubernetes/pkg/volume/util/nestedpendingoperations"
 	"k8s.io/kubernetes/pkg/volume/util/operationexecutor"
 	volumetypes "k8s.io/kubernetes/pkg/volume/util/types"
+	utilpath "k8s.io/utils/path"
 )
 
 // Reconciler runs a periodic loop to reconcile the desired state of the world
@@ -673,7 +673,7 @@ func getVolumesFromPodDir(podDir string) ([]podVolume, error) {
 			for _, volumeDir := range volumesDirInfo {
 				pluginName := volumeDir.Name()
 				volumePluginPath := path.Join(volumesDir, pluginName)
-				volumePluginDirs, err := utilfile.ReadDirNoStat(volumePluginPath)
+				volumePluginDirs, err := utilpath.ReadDirNoStat(volumePluginPath)
 				if err != nil {
 					klog.Errorf("Could not read volume plugin directory %q: %v", volumePluginPath, err)
 					continue

pkg/master/tunneler/BUILD

@@ -22,10 +22,10 @@ go_library(
     importpath = "k8s.io/kubernetes/pkg/master/tunneler",
     deps = [
         "//pkg/ssh:go_default_library",
-        "//pkg/util/file:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/clock:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/wait:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
+        "//vendor/k8s.io/utils/path:go_default_library",
     ],
 )
 

pkg/master/tunneler/ssh.go

@@ -31,7 +31,7 @@ import (
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/klog"
 	"k8s.io/kubernetes/pkg/ssh"
-	utilfile "k8s.io/kubernetes/pkg/util/file"
+	utilpath "k8s.io/utils/path"
 )
 
 type InstallSSHKey func(ctx context.Context, user string, data []byte) error
@@ -119,7 +119,7 @@ func (c *SSHTunneler) Run(getAddresses AddressFunc) {
 
 	// public keyfile is written last, so check for that.
 	publicKeyFile := c.SSHKeyfile + ".pub"
-	exists, err := utilfile.FileExists(publicKeyFile)
+	exists, err := utilpath.Exists(utilpath.CheckFollowSymlink, publicKeyFile)
 	if err != nil {
 		klog.Errorf("Error detecting if key exists: %v", err)
 	} else if !exists {
@@ -208,7 +208,7 @@ func generateSSHKey(privateKeyfile, publicKeyfile string) error {
 	}
 	// If private keyfile already exists, we must have only made it halfway
 	// through last time, so delete it.
-	exists, err := utilfile.FileExists(privateKeyfile)
+	exists, err := utilpath.Exists(utilpath.CheckFollowSymlink, privateKeyfile)
 	if err != nil {
 		klog.Errorf("Error detecting if private key exists: %v", err)
 	} else if exists {

pkg/security/apparmor/BUILD

@@ -17,9 +17,9 @@ go_library(
     deps = [
         "//pkg/features:go_default_library",
         "//pkg/kubelet/types:go_default_library",
-        "//pkg/util/file:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
+        "//vendor/k8s.io/utils/path:go_default_library",
     ],
 )
 

pkg/security/apparmor/validate.go

@@ -29,7 +29,7 @@ import (
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
 	"k8s.io/kubernetes/pkg/features"
 	kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
-	utilfile "k8s.io/kubernetes/pkg/util/file"
+	utilpath "k8s.io/utils/path"
 )
 
 // Whether AppArmor should be disabled by default.
@@ -195,7 +195,7 @@ func getAppArmorFS() (string, error) {
 		}
 		if fields[2] == "securityfs" {
 			appArmorFS := path.Join(fields[1], "apparmor")
-			if ok, err := utilfile.FileExists(appArmorFS); !ok {
+			if ok, err := utilpath.Exists(utilpath.CheckFollowSymlink, appArmorFS); !ok {
 				msg := fmt.Sprintf("path %s does not exist", appArmorFS)
 				if err != nil {
 					return "", fmt.Errorf("%s: %v", msg, err)

pkg/util/BUILD

@@ -20,7 +20,6 @@ filegroup(
         "//pkg/util/dbus:all-srcs",
         "//pkg/util/ebtables:all-srcs",
         "//pkg/util/env:all-srcs",
-        "//pkg/util/file:all-srcs",
         "//pkg/util/filesystem:all-srcs",
         "//pkg/util/flag:all-srcs",
         "//pkg/util/flock:all-srcs",

pkg/util/file/BUILD

-package(default_visibility = ["//visibility:public"])
-
-load(
-    "@io_bazel_rules_go//go:def.bzl",
-    "go_library",
-    "go_test",
-)
-
-go_library(
-    name = "go_default_library",
-    srcs = ["file.go"],
-    importpath = "k8s.io/kubernetes/pkg/util/file",
-)
-
-filegroup(
-    name = "package-srcs",
-    srcs = glob(["**"]),
-    tags = ["automanaged"],
-    visibility = ["//visibility:private"],
-)
-
-filegroup(
-    name = "all-srcs",
-    srcs = [":package-srcs"],
-    tags = ["automanaged"],
-)
-
-go_test(
-    name = "go_default_test",
-    srcs = ["file_test.go"],
-    embed = [":go_default_library"],
-    deps = [
-        "//vendor/github.com/spf13/afero:go_default_library",
-        "//vendor/github.com/stretchr/testify/assert:go_default_library",
-    ],
-)

pkg/util/file/file.go

-/*
-Copyright 2017 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 file
-
-import (
-	"os"
-)
-
-// FileExists checks if specified file exists.
-func FileExists(filename string) (bool, error) {
-	if _, err := os.Stat(filename); os.IsNotExist(err) {
-		return false, nil
-	} else if err != nil {
-		return false, err
-	}
-	return true, nil
-}
-
-// FileOrSymlinkExists checks if specified file or symlink exists.
-func FileOrSymlinkExists(filename string) (bool, error) {
-	if _, err := os.Lstat(filename); os.IsNotExist(err) {
-		return false, nil
-	} else if err != nil {
-		return false, err
-	}
-	return true, nil
-}
-
-// ReadDirNoStat returns a string of files/directories contained
-// in dirname without calling lstat on them.
-func ReadDirNoStat(dirname string) ([]string, error) {
-	if dirname == "" {
-		dirname = "."
-	}
-
-	f, err := os.Open(dirname)
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-
-	return f.Readdirnames(-1)
-}

pkg/util/file/file_test.go

-/*
-Copyright 2017 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 file
-
-import (
-	"os"
-	"path/filepath"
-	"sort"
-	"testing"
-
-	"github.com/spf13/afero"
-	"github.com/stretchr/testify/assert"
-)
-
-func RecoverEnv(wd, tmpDir string) {
-	os.Chdir(wd)
-	os.RemoveAll(tmpDir)
-}
-
-func TestFileUtils(t *testing.T) {
-	fs := &afero.Afero{Fs: afero.NewOsFs()}
-	// Create tmp dir
-	tmpDir, err := fs.TempDir(os.TempDir(), "util_file_test_")
-	if err != nil {
-		t.Fatal("Failed to test: failed to create temp dir.")
-	}
-
-	// create tmp file
-	tmpFile, err := fs.TempFile(tmpDir, "test_file_exists_")
-	if err != nil {
-		t.Fatal("Failed to test: failed to create temp file.")
-	}
-
-	// create tmp sym link
-	tmpSymlinkName := filepath.Join(tmpDir, "test_file_exists_sym_link")
-	err = os.Symlink(tmpFile.Name(), tmpSymlinkName)
-	if err != nil {
-		t.Fatal("Failed to test: failed to create sym link.")
-	}
-
-	// create tmp sub dir
-	tmpSubDir, err := fs.TempDir(tmpDir, "sub_")
-	if err != nil {
-		t.Fatal("Failed to test: failed to create temp sub dir.")
-	}
-
-	// record the current dir
-	currentDir, err := os.Getwd()
-	if err != nil {
-		t.Fatal("Failed to test: failed to get current dir.")
-	}
-
-	// change the work dir to temp dir
-	err = os.Chdir(tmpDir)
-	if err != nil {
-		t.Fatal("Failed to test: failed to change work dir.")
-	}
-
-	// recover test environment
-	defer RecoverEnv(currentDir, tmpDir)
-
-	t.Run("TestFileExists", func(t *testing.T) {
-		tests := []struct {
-			name          string
-			fileName      string
-			expectedError bool
-			expectedValue bool
-		}{
-			{"file_not_exists", filepath.Join(tmpDir, "file_not_exist_case"), false, false},
-			{"file_exists", tmpFile.Name(), false, true},
-		}
-
-		for _, test := range tests {
-			realValued, realError := FileExists(test.fileName)
-			if test.expectedError {
-				assert.Errorf(t, realError, "Failed to test with '%s': %s", test.fileName, test.name)
-			} else {
-				assert.EqualValuesf(t, test.expectedValue, realValued, "Failed to test with '%s': %s", test.fileName, test.name)
-			}
-		}
-	})
-
-	t.Run("TestFileOrSymlinkExists", func(t *testing.T) {
-		tests := []struct {
-			name          string
-			fileName      string
-			expectedError bool
-			expectedValue bool
-		}{
-			{"file_not_exists", filepath.Join(tmpDir, "file_not_exist_case"), false, false},
-			{"file_exists", tmpFile.Name(), false, true},
-			{"symlink_exists", tmpSymlinkName, false, true},
-		}
-
-		for _, test := range tests {
-			realValued, realError := FileOrSymlinkExists(test.fileName)
-			if test.expectedError {
-				assert.Errorf(t, realError, "Failed to test with '%s': %s", test.fileName, test.name)
-			} else {
-				assert.EqualValuesf(t, test.expectedValue, realValued, "Failed to test with '%s': %s", test.fileName, test.name)
-			}
-		}
-	})
-
-	t.Run("TestReadDirNoStat", func(t *testing.T) {
-		_, tmpFileSimpleName := filepath.Split(tmpFile.Name())
-		_, tmpSymlinkSimpleName := filepath.Split(tmpSymlinkName)
-		_, tmpSubDirSimpleName := filepath.Split(tmpSubDir)
-
-		tests := []struct {
-			name          string
-			dirName       string
-			expectedError bool
-			expectedValue []string
-		}{
-			{"dir_not_exists", filepath.Join(tmpDir, "file_not_exist_case"), true, []string{}},
-			{"dir_is_empty", "", false, []string{tmpFileSimpleName, tmpSymlinkSimpleName, tmpSubDirSimpleName}},
-			{"dir_exists", tmpDir, false, []string{tmpFileSimpleName, tmpSymlinkSimpleName, tmpSubDirSimpleName}},
-		}
-
-		for _, test := range tests {
-			realValued, realError := ReadDirNoStat(test.dirName)
-
-			// execute sort action before compare
-			sort.Strings(realValued)
-			sort.Strings(test.expectedValue)
-
-			if test.expectedError {
-				assert.Errorf(t, realError, "Failed to test with '%s': %s", test.dirName, test.name)
-			} else {
-				assert.EqualValuesf(t, test.expectedValue, realValued, "Failed to test with '%s': %s", test.dirName, test.name)
-			}
-		}
-	})
-}

pkg/util/mount/BUILD

@@ -35,11 +35,11 @@ go_library(
             "//vendor/k8s.io/utils/nsenter:go_default_library",
         ],
         "@io_bazel_rules_go//go/platform:linux": [
-            "//pkg/util/file:go_default_library",
             "//staging/src/k8s.io/apimachinery/pkg/util/sets:go_default_library",
             "//vendor/golang.org/x/sys/unix:go_default_library",
             "//vendor/k8s.io/utils/io:go_default_library",
             "//vendor/k8s.io/utils/nsenter:go_default_library",
+            "//vendor/k8s.io/utils/path:go_default_library",
         ],
         "@io_bazel_rules_go//go/platform:nacl": [
             "//vendor/k8s.io/utils/nsenter:go_default_library",
@@ -57,8 +57,8 @@ go_library(
             "//vendor/k8s.io/utils/nsenter:go_default_library",
         ],
         "@io_bazel_rules_go//go/platform:windows": [
-            "//pkg/util/file:go_default_library",
             "//vendor/k8s.io/utils/nsenter:go_default_library",
+            "//vendor/k8s.io/utils/path:go_default_library",
         ],
         "//conditions:default": [],
     }),

pkg/util/mount/mount_linux.go

@@ -33,9 +33,9 @@ import (
 	"golang.org/x/sys/unix"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/klog"
-	utilfile "k8s.io/kubernetes/pkg/util/file"
 	utilexec "k8s.io/utils/exec"
 	utilio "k8s.io/utils/io"
+	utilpath "k8s.io/utils/path"
 )
 
 const (
@@ -417,7 +417,7 @@ func (mounter *Mounter) MakeFile(pathname string) error {
 }
 
 func (mounter *Mounter) ExistsPath(pathname string) (bool, error) {
-	return utilfile.FileExists(pathname)
+	return utilpath.Exists(utilpath.CheckFollowSymlink, pathname)
 }
 
 func (mounter *Mounter) EvalHostSymlinks(pathname string) (string, error) {

pkg/util/mount/mount_windows.go

@@ -30,7 +30,7 @@ import (
 
 	"k8s.io/klog"
 
-	utilfile "k8s.io/kubernetes/pkg/util/file"
+	utilpath "k8s.io/utils/path"
 )
 
 // Mounter provides the default implementation of mount.Interface
@@ -235,7 +235,7 @@ func (mounter *Mounter) MakeFile(pathname string) error {
 
 // ExistsPath checks whether the path exists
 func (mounter *Mounter) ExistsPath(pathname string) (bool, error) {
-	return utilfile.FileExists(pathname)
+	return utilpath.Exists(utilpath.CheckFollowSymlink, pathname)
 }
 
 // EvalHostSymlinks returns the path name after evaluating symlinks

pkg/util/mount/nsenter_mount.go

@@ -27,8 +27,8 @@ import (
 
 	"golang.org/x/sys/unix"
 	"k8s.io/klog"
-	utilfile "k8s.io/kubernetes/pkg/util/file"
 	"k8s.io/utils/nsenter"
+	utilpath "k8s.io/utils/path"
 )
 
 const (
@@ -291,7 +291,7 @@ func (mounter *NsenterMounter) ExistsPath(pathname string) (bool, error) {
 		return false, err
 	}
 	kubeletpath := mounter.ne.KubeletPath(hostPath)
-	return utilfile.FileExists(kubeletpath)
+	return utilpath.Exists(utilpath.CheckFollowSymlink, kubeletpath)
 }
 
 func (mounter *NsenterMounter) EvalHostSymlinks(pathname string) (string, error) {

pkg/volume/gcepd/BUILD

@@ -20,7 +20,6 @@ go_library(
         "//pkg/cloudprovider/providers/gce:go_default_library",
         "//pkg/features:go_default_library",
         "//pkg/kubelet/apis:go_default_library",
-        "//pkg/util/file:go_default_library",
         "//pkg/util/mount:go_default_library",
         "//pkg/util/strings:go_default_library",
         "//pkg/volume:go_default_library",
@@ -35,6 +34,7 @@ go_library(
         "//staging/src/k8s.io/cloud-provider:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
         "//vendor/k8s.io/utils/exec:go_default_library",
+        "//vendor/k8s.io/utils/path:go_default_library",
     ],
 )
 

pkg/volume/gcepd/gce_util.go

@@ -32,11 +32,11 @@ import (
 	gcecloud "k8s.io/kubernetes/pkg/cloudprovider/providers/gce"
 	"k8s.io/kubernetes/pkg/features"
 	kubeletapis "k8s.io/kubernetes/pkg/kubelet/apis"
-	utilfile "k8s.io/kubernetes/pkg/util/file"
 	"k8s.io/kubernetes/pkg/util/mount"
 	"k8s.io/kubernetes/pkg/volume"
 	volumeutil "k8s.io/kubernetes/pkg/volume/util"
 	"k8s.io/utils/exec"
+	utilpath "k8s.io/utils/path"
 )
 
 const (
@@ -236,7 +236,7 @@ func verifyDevicePath(devicePaths []string, sdBeforeSet sets.String, diskName st
 
 // Calls scsi_id on the given devicePath to get the serial number reported by that device.
 func getScsiSerial(devicePath, diskName string) (string, error) {
-	exists, err := utilfile.FileExists("/lib/udev/scsi_id")
+	exists, err := utilpath.Exists(utilpath.CheckFollowSymlink, "/lib/udev/scsi_id")
 	if err != nil {
 		return "", fmt.Errorf("failed to check scsi_id existence: %v", err)
 	}

pkg/volume/host_path/BUILD

@@ -31,7 +31,6 @@ go_test(
     srcs = ["host_path_test.go"],
     embed = [":go_default_library"],
     deps = [
-        "//pkg/util/file:go_default_library",
         "//pkg/util/mount:go_default_library",
         "//pkg/volume:go_default_library",
         "//pkg/volume/testing:go_default_library",
@@ -41,6 +40,7 @@ go_test(
         "//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/uuid:go_default_library",
         "//staging/src/k8s.io/client-go/kubernetes/fake:go_default_library",
+        "//vendor/k8s.io/utils/path:go_default_library",
     ],
 )
 

pkg/volume/host_path/host_path_test.go

@@ -27,10 +27,10 @@ import (
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/uuid"
 	"k8s.io/client-go/kubernetes/fake"
-	utilfile "k8s.io/kubernetes/pkg/util/file"
 	utilmount "k8s.io/kubernetes/pkg/util/mount"
 	"k8s.io/kubernetes/pkg/volume"
 	volumetest "k8s.io/kubernetes/pkg/volume/testing"
+	utilpath "k8s.io/utils/path"
 )
 
 func newHostPathType(pathType string) *v1.HostPathType {
@@ -122,7 +122,7 @@ func TestDeleter(t *testing.T) {
 	if err := deleter.Delete(); err != nil {
 		t.Errorf("Mock Recycler expected to return nil but got %s", err)
 	}
-	if exists, _ := utilfile.FileExists(tempPath); exists {
+	if exists, _ := utilpath.Exists(utilpath.CheckFollowSymlink, tempPath); exists {
 		t.Errorf("Temp path expected to be deleted, but was found at %s", tempPath)
 	}
 }

pkg/volume/rbd/BUILD

@@ -18,7 +18,6 @@ go_library(
     importpath = "k8s.io/kubernetes/pkg/volume/rbd",
     deps = [
         "//pkg/features:go_default_library",
-        "//pkg/util/file:go_default_library",
         "//pkg/util/mount:go_default_library",
         "//pkg/util/node:go_default_library",
         "//pkg/util/strings:go_default_library",
@@ -36,6 +35,7 @@ go_library(
         "//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
         "//staging/src/k8s.io/client-go/kubernetes:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
+        "//vendor/k8s.io/utils/path:go_default_library",
     ],
 )
 

pkg/volume/rbd/rbd_util.go

@@ -37,11 +37,11 @@ import (
 	"k8s.io/apimachinery/pkg/util/errors"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/klog"
-	fileutil "k8s.io/kubernetes/pkg/util/file"
 	"k8s.io/kubernetes/pkg/util/mount"
 	"k8s.io/kubernetes/pkg/util/node"
 	"k8s.io/kubernetes/pkg/volume"
 	volutil "k8s.io/kubernetes/pkg/volume/util"
+	utilpath "k8s.io/utils/path"
 )
 
 const (
@@ -486,7 +486,7 @@ func (util *RBDUtil) DetachDisk(plugin *rbdPlugin, deviceMountPath string, devic
 	// Currently, we don't persist rbd info on the disk, but for backward
 	// compatbility, we need to clean it if found.
 	rbdFile := path.Join(deviceMountPath, "rbd.json")
-	exists, err := fileutil.FileExists(rbdFile)
+	exists, err := utilpath.Exists(utilpath.CheckFollowSymlink, rbdFile)
 	if err != nil {
 		return err
 	}