chore: remove refs to deprecated io/ioutil

cloudmock/gce/gcphttp/utils.go

@@ -20,7 +20,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 )
 
@@ -101,7 +101,7 @@ func buildJSONResponse(statusCode int, obj interface{}) (*http.Response, error)
 	r.Header = make(http.Header)
 	r.Header.Add("Content-Type", "application/json; charset=UTF-8")
 
-	r.Body = ioutil.NopCloser(bytes.NewReader(b))
+	r.Body = io.NopCloser(bytes.NewReader(b))
 
 	return r, nil
 }

pkg/applylib/mocks/mockkubeapiserver/patchresource.go

@@ -18,7 +18,7 @@ package mockkubeapiserver
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
@@ -43,7 +43,7 @@ func (req *patchResource) Run(s *MockKubeAPIServer) error {
 		existing = objects.Objects[id]
 	}
 
-	bodyBytes, err := ioutil.ReadAll(req.r.Body)
+	bodyBytes, err := io.ReadAll(req.r.Body)
 	if err != nil {
 		return err
 	}

pkg/applylib/mocks/mockkubeapiserver/putresource.go

@@ -18,7 +18,7 @@ package mockkubeapiserver
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
@@ -48,7 +48,7 @@ func (req *putResource) Run(s *MockKubeAPIServer) error {
 		return req.writeErrorResponse(http.StatusNotFound)
 	}
 
-	bodyBytes, err := ioutil.ReadAll(req.r.Body)
+	bodyBytes, err := io.ReadAll(req.r.Body)
 	if err != nil {
 		return err
 	}

upup/pkg/fi/cloudup/openstack/metadata.go

@@ -20,7 +20,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"os"
 	"path"
@@ -86,7 +85,7 @@ func newMetadataService(serviceURL string, configDrivePath string, mounter *moun
 
 // GetLocalMetadata returns a local metadata for the server
 func GetLocalMetadata() (*InstanceMetadata, error) {
-	mountTarget, err := ioutil.TempDir("", "configdrive")
+	mountTarget, err := os.MkdirTemp("", "configdrive")
 	if err != nil {
 		return nil, err
 	}
@@ -153,7 +152,7 @@ func (mds MetadataService) getFromMetadataService() (*InstanceMetadata, error) {
 func (mds MetadataService) parseMetadata(r io.Reader) (*InstanceMetadata, error) {
 	var meta InstanceMetadata
 
-	data, err := ioutil.ReadAll(r)
+	data, err := io.ReadAll(r)
 	if err != nil {
 		return nil, err
 	}

util/pkg/vfs/gsfs.go

@@ -22,7 +22,6 @@ import (
 	"encoding/base64"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"os"
 	"path"
@@ -420,7 +419,7 @@ type terraformGSObjectAccessControl struct {
 }
 
 func (p *GSPath) RenderTerraform(w *terraformWriter.TerraformWriter, name string, data io.Reader, acl ACL) error {
-	bytes, err := ioutil.ReadAll(data)
+	bytes, err := io.ReadAll(data)
 	if err != nil {
 		return fmt.Errorf("reading data: %v", err)
 	}