timeout wait backend to frontend complete

Signed-off-by: zhangxiaoyu <zhangxiaoyu58@huawei.com>

0009-timeout-wait-backend-to-frontend-complete.patch

@@ -0,0 +1,29 @@
+From 99ca0fbb527b3c3137d8ea16aa82db009517adf0 Mon Sep 17 00:00:00 2001
+From: zhangxiaoyu <zhangxiaoyu58@huawei.com>
+Date: Tue, 1 Nov 2022 15:34:16 +0800
+Subject: [PATCH] timeout wait backend to frontend complete
+
+Signed-off-by: zhangxiaoyu <zhangxiaoyu58@huawei.com>
+---
+ pkg/kubelet/cri/streaming/remotecommand/proxy.go | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/pkg/kubelet/cri/streaming/remotecommand/proxy.go b/pkg/kubelet/cri/streaming/remotecommand/proxy.go
+index f21629af..65860c87 100644
+--- a/pkg/kubelet/cri/streaming/remotecommand/proxy.go
++++ b/pkg/kubelet/cri/streaming/remotecommand/proxy.go
+@@ -129,6 +129,11 @@ func ProxyToWebSocket(w http.ResponseWriter, r *http.Request, url *url.URL, opts
+ 	case <-frontendResizeToBackendComplete:
+ 	}
+ 
++	select {
++	case <-backendToFrontendComplete:
++	case <-time.Tick(5 * time.Second):
++	}
++
+ 	if errConnection != nil {
+ 		klog.Errorf("SpdyProxy: the connection disconnected: %v", errConnection)
+ 		if exitErr, ok := errConnection.(exec.ExitError); ok && exitErr.Exited() {
+-- 
+2.25.1
+

kubernetes.spec

@@ -3,7 +3,7 @@
 
 Name:         kubernetes
 Version:      1.20.2
-Release:      10
+Release:      11
 Summary:      Container cluster management
 License:      ASL 2.0
 URL:          https://k8s.io/kubernetes
@@ -32,6 +32,7 @@ Patch6004: 0005-fix-CVE-2021-25741.patch
 Patch6005: 0006-kubelet-support-attach-websocket-protocol.patch
 Patch6006: 0007-Add-an-option-for-aggregator.patch
 Patch6007: 0008-kubelet-fix-websocket-reference-nil-pointer.patch
+Patch6008: 0009-timeout-wait-backend-to-frontend-complete.patch
 
 %description
 Container cluster management.
@@ -263,6 +264,9 @@ getent passwd kube >/dev/null || useradd -r -g kube -d / -s /sbin/nologin \
 %systemd_postun kubelet kube-proxy
 
 %changelog
+* Tue Nov 01 2022 zhangxiaoyu <zhangxiaoyu58@huawei.com> - 1.20.2-11
+- DESC: timeout wait backend to frontend complete
+
 * Mon Oct 31 2022 zhangxiaoyu <zhangxiaoyu58@huawei.com> - 1.20.2-10
 - DESC: kubelet fix websocket reference nul pointer