rebase: update kubernetes to 1.26.1

update kubernetes and its dependencies
to v1.26.1

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/k8s.io/client-go/tools/remotecommand/errorstream.go

@@ -19,7 +19,6 @@ package remotecommand
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 
 	"k8s.io/apimachinery/pkg/util/runtime"
 )
@@ -39,7 +38,7 @@ func watchErrorStream(errorStream io.Reader, d errorStreamDecoder) chan error {
 	go func() {
 		defer runtime.HandleCrash()
 
-		message, err := ioutil.ReadAll(errorStream)
+		message, err := io.ReadAll(errorStream)
 		switch {
 		case err != nil && err != io.EOF:
 			errorChan <- fmt.Errorf("error reading from error stream: %s", err)

vendor/k8s.io/client-go/tools/remotecommand/remotecommand.go

@@ -17,6 +17,7 @@ limitations under the License.
 package remotecommand
 
 import (
+	"context"
 	"fmt"
 	"io"
 	"net/http"
@@ -27,7 +28,7 @@ import (
 	"k8s.io/apimachinery/pkg/util/httpstream"
 	"k8s.io/apimachinery/pkg/util/remotecommand"
 	restclient "k8s.io/client-go/rest"
-	spdy "k8s.io/client-go/transport/spdy"
+	"k8s.io/client-go/transport/spdy"
 )
 
 // StreamOptions holds information pertaining to the current streaming session:
@@ -43,11 +44,16 @@ type StreamOptions struct {
 
 // Executor is an interface for transporting shell-style streams.
 type Executor interface {
-	// Stream initiates the transport of the standard shell streams. It will transport any
-	// non-nil stream to a remote system, and return an error if a problem occurs. If tty
-	// is set, the stderr stream is not used (raw TTY manages stdout and stderr over the
-	// stdout stream).
+	// Deprecated: use StreamWithContext instead to avoid possible resource leaks.
+	// See https://github.com/kubernetes/kubernetes/pull/103177 for details.
 	Stream(options StreamOptions) error
+
+	// StreamWithContext initiates the transport of the standard shell streams. It will
+	// transport any non-nil stream to a remote system, and return an error if a problem
+	// occurs. If tty is set, the stderr stream is not used (raw TTY manages stdout and
+	// stderr over the stdout stream).
+	// The context controls the entire lifetime of stream execution.
+	StreamWithContext(ctx context.Context, options StreamOptions) error
 }
 
 type streamCreator interface {
@@ -106,9 +112,14 @@ func NewSPDYExecutorForProtocols(transport http.RoundTripper, upgrader spdy.Upgr
 // Stream opens a protocol streamer to the server and streams until a client closes
 // the connection or the server disconnects.
 func (e *streamExecutor) Stream(options StreamOptions) error {
-	req, err := http.NewRequest(e.method, e.url.String(), nil)
+	return e.StreamWithContext(context.Background(), options)
+}
+
+// newConnectionAndStream creates a new SPDY connection and a stream protocol handler upon it.
+func (e *streamExecutor) newConnectionAndStream(ctx context.Context, options StreamOptions) (httpstream.Connection, streamProtocolHandler, error) {
+	req, err := http.NewRequestWithContext(ctx, e.method, e.url.String(), nil)
 	if err != nil {
-		return fmt.Errorf("error creating request: %v", err)
+		return nil, nil, fmt.Errorf("error creating request: %v", err)
 	}
 
 	conn, protocol, err := spdy.Negotiate(
@@ -118,9 +129,8 @@ func (e *streamExecutor) Stream(options StreamOptions) error {
 		e.protocols...,
 	)
 	if err != nil {
-		return err
+		return nil, nil, err
 	}
-	defer conn.Close()
 
 	var streamer streamProtocolHandler
 
@@ -138,5 +148,35 @@ func (e *streamExecutor) Stream(options StreamOptions) error {
 		streamer = newStreamProtocolV1(options)
 	}
 
-	return streamer.stream(conn)
+	return conn, streamer, nil
+}
+
+// StreamWithContext opens a protocol streamer to the server and streams until a client closes
+// the connection or the server disconnects or the context is done.
+func (e *streamExecutor) StreamWithContext(ctx context.Context, options StreamOptions) error {
+	conn, streamer, err := e.newConnectionAndStream(ctx, options)
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+
+	panicChan := make(chan any, 1)
+	errorChan := make(chan error, 1)
+	go func() {
+		defer func() {
+			if p := recover(); p != nil {
+				panicChan <- p
+			}
+		}()
+		errorChan <- streamer.stream(conn)
+	}()
+
+	select {
+	case p := <-panicChan:
+		panic(p)
+	case err := <-errorChan:
+		return err
+	case <-ctx.Done():
+		return ctx.Err()
+	}
 }

vendor/k8s.io/client-go/tools/remotecommand/v1.go

@@ -19,7 +19,6 @@ package remotecommand
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 
 	"k8s.io/api/core/v1"
@@ -29,8 +28,8 @@ import (
 
 // streamProtocolV1 implements the first version of the streaming exec & attach
 // protocol. This version has some bugs, such as not being able to detect when
-// non-interactive stdin data has ended. See http://issues.k8s.io/13394 and
-// http://issues.k8s.io/13395 for more details.
+// non-interactive stdin data has ended. See https://issues.k8s.io/13394 and
+// https://issues.k8s.io/13395 for more details.
 type streamProtocolV1 struct {
 	StreamOptions
 
@@ -111,7 +110,7 @@ func (p *streamProtocolV1) stream(conn streamCreator) error {
 
 	// always read from errorStream
 	go func() {
-		message, err := ioutil.ReadAll(p.errorStream)
+		message, err := io.ReadAll(p.errorStream)
 		if err != nil && err != io.EOF {
 			errorChan <- fmt.Errorf("Error reading from error stream: %s", err)
 			return

vendor/k8s.io/client-go/tools/remotecommand/v2.go

@@ -19,7 +19,6 @@ package remotecommand
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"sync"
 
@@ -126,7 +125,7 @@ func (p *streamProtocolV2) copyStdin() {
 
 			// this "copy" doesn't actually read anything - it's just here to wait for
 			// the server to close remoteStdin.
-			if _, err := io.Copy(ioutil.Discard, p.remoteStdin); err != nil {
+			if _, err := io.Copy(io.Discard, p.remoteStdin); err != nil {
 				runtime.HandleError(err)
 			}
 		}()
@@ -145,7 +144,7 @@ func (p *streamProtocolV2) copyStdout(wg *sync.WaitGroup) {
 		// make sure, packet in queue can be consumed.
 		// block in queue may lead to deadlock in conn.server
 		// issue: https://github.com/kubernetes/kubernetes/issues/96339
-		defer io.Copy(ioutil.Discard, p.remoteStdout)
+		defer io.Copy(io.Discard, p.remoteStdout)
 
 		if _, err := io.Copy(p.Stdout, p.remoteStdout); err != nil {
 			runtime.HandleError(err)
@@ -162,7 +161,7 @@ func (p *streamProtocolV2) copyStderr(wg *sync.WaitGroup) {
 	go func() {
 		defer runtime.HandleCrash()
 		defer wg.Done()
-		defer io.Copy(ioutil.Discard, p.remoteStderr)
+		defer io.Copy(io.Discard, p.remoteStderr)
 
 		if _, err := io.Copy(p.Stderr, p.remoteStderr); err != nil {
 			runtime.HandleError(err)