deprecate ioutil

ecs-init/cache/dependencies.go

@@ -22,7 +22,6 @@ package cache
 
 import (
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -156,7 +155,7 @@ func (s *standardFS) MkdirAll(path string, perm os.FileMode) error {
 }
 
 func (s *standardFS) TempFile(dir, prefix string) (*os.File, error) {
-	return ioutil.TempFile(dir, prefix)
+	return os.CreateTemp(dir, prefix)
 }
 
 func (s *standardFS) Remove(path string) {
@@ -176,7 +175,7 @@ func (s *standardFS) Rename(oldpath, newpath string) error {
 }
 
 func (s *standardFS) ReadAll(r io.Reader) ([]byte, error) {
-	return ioutil.ReadAll(r)
+	return io.ReadAll(r)
 }
 
 func (s *standardFS) Open(name string) (io.ReadCloser, error) {
@@ -192,5 +191,5 @@ func (s *standardFS) Base(path string) string {
 }
 
 func (s *standardFS) WriteFile(filename string, data []byte, perm os.FileMode) error {
-	return ioutil.WriteFile(filename, data, perm)
+	return os.WriteFile(filename, data, perm)
 }

ecs-init/gpu/nvidia_gpu_manager.go

@@ -15,7 +15,6 @@ package gpu
 
 import (
 	"encoding/json"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -219,5 +218,5 @@ func WriteToFile(filename string, data []byte, perm os.FileMode) error {
 	if err != nil {
 		return err
 	}
-	return ioutil.WriteFile(filename, data, perm)
+	return os.WriteFile(filename, data, perm)
 }

ecs-init/volumes/state_manager.go

@@ -16,7 +16,6 @@ package volumes
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"sync"
@@ -94,7 +93,7 @@ var saveStateToDisk = saveState
 func saveState(b []byte) error {
 	// Make our temp-file on the same volume as our data-file to ensure we can
 	// actually move it atomically; cross-device renaming will error out
-	tmpfile, err := ioutil.TempFile(PluginStatePath, "tmp_ecs_volume_plugin")
+	tmpfile, err := os.CreateTemp(PluginStatePath, "tmp_ecs_volume_plugin")
 	if err != nil {
 		return fmt.Errorf("failed to create temp file: %v", err)
 	}
@@ -154,5 +153,5 @@ func (s *StateManager) load(a interface{}) error {
 var readStateFile = readFile
 
 func readFile() ([]byte, error) {
-	return ioutil.ReadFile(PluginStateFileAbsPath)
+	return os.ReadFile(PluginStateFileAbsPath)
 }