rebase: update K8s packages to v0.32.1

Update K8s packages in go.mod to v0.32.1

Signed-off-by: Praveen M <m.praveen@ibm.com>

vendor/k8s.io/kubernetes/pkg/kubelet/lifecycle/handlers.go

@@ -0,0 +1,243 @@
+/*
+Copyright 2014 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 lifecycle
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/apimachinery/pkg/util/intstr"
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	"k8s.io/client-go/tools/record"
+	"k8s.io/klog/v2"
+	"k8s.io/kubernetes/pkg/features"
+	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
+	"k8s.io/kubernetes/pkg/kubelet/metrics"
+	kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
+	"k8s.io/kubernetes/pkg/kubelet/util/format"
+	httpprobe "k8s.io/kubernetes/pkg/probe/http"
+	"k8s.io/kubernetes/pkg/security/apparmor"
+)
+
+const (
+	maxRespBodyLength = 10 * 1 << 10 // 10KB
+
+	AppArmorNotAdmittedReason = "AppArmor"
+)
+
+type handlerRunner struct {
+	httpDoer         kubetypes.HTTPDoer
+	commandRunner    kubecontainer.CommandRunner
+	containerManager podStatusProvider
+	eventRecorder    record.EventRecorder
+}
+
+type podStatusProvider interface {
+	GetPodStatus(ctx context.Context, uid types.UID, name, namespace string) (*kubecontainer.PodStatus, error)
+}
+
+// NewHandlerRunner returns a configured lifecycle handler for a container.
+func NewHandlerRunner(httpDoer kubetypes.HTTPDoer, commandRunner kubecontainer.CommandRunner, containerManager podStatusProvider, eventRecorder record.EventRecorder) kubecontainer.HandlerRunner {
+	return &handlerRunner{
+		httpDoer:         httpDoer,
+		commandRunner:    commandRunner,
+		containerManager: containerManager,
+		eventRecorder:    eventRecorder,
+	}
+}
+
+func (hr *handlerRunner) Run(ctx context.Context, containerID kubecontainer.ContainerID, pod *v1.Pod, container *v1.Container, handler *v1.LifecycleHandler) (string, error) {
+	switch {
+	case handler.Exec != nil:
+		var msg string
+		// TODO(tallclair): Pass a proper timeout value.
+		output, err := hr.commandRunner.RunInContainer(ctx, containerID, handler.Exec.Command, 0)
+		if err != nil {
+			msg = fmt.Sprintf("Exec lifecycle hook (%v) for Container %q in Pod %q failed - error: %v, message: %q", handler.Exec.Command, container.Name, format.Pod(pod), err, string(output))
+			klog.V(1).ErrorS(err, "Exec lifecycle hook for Container in Pod failed", "execCommand", handler.Exec.Command, "containerName", container.Name, "pod", klog.KObj(pod), "message", string(output))
+		}
+		return msg, err
+	case handler.HTTPGet != nil:
+		err := hr.runHTTPHandler(ctx, pod, container, handler, hr.eventRecorder)
+		var msg string
+		if err != nil {
+			msg = fmt.Sprintf("HTTP lifecycle hook (%s) for Container %q in Pod %q failed - error: %v", handler.HTTPGet.Path, container.Name, format.Pod(pod), err)
+			klog.V(1).ErrorS(err, "HTTP lifecycle hook for Container in Pod failed", "path", handler.HTTPGet.Path, "containerName", container.Name, "pod", klog.KObj(pod))
+		}
+		return msg, err
+	case handler.Sleep != nil:
+		err := hr.runSleepHandler(ctx, handler.Sleep.Seconds)
+		var msg string
+		if err != nil {
+			msg = fmt.Sprintf("Sleep lifecycle hook (%d) for Container %q in Pod %q failed - error: %v", handler.Sleep.Seconds, container.Name, format.Pod(pod), err)
+			klog.V(1).ErrorS(err, "Sleep lifecycle hook for Container in Pod failed", "sleepSeconds", handler.Sleep.Seconds, "containerName", container.Name, "pod", klog.KObj(pod))
+		}
+		return msg, err
+	default:
+		err := fmt.Errorf("invalid handler: %v", handler)
+		msg := fmt.Sprintf("Cannot run handler: %v", err)
+		klog.ErrorS(err, "Cannot run handler")
+		return msg, err
+	}
+}
+
+// resolvePort attempts to turn an IntOrString port reference into a concrete port number.
+// If portReference has an int value, it is treated as a literal, and simply returns that value.
+// If portReference is a string, an attempt is first made to parse it as an integer.  If that fails,
+// an attempt is made to find a port with the same name in the container spec.
+// If a port with the same name is found, it's ContainerPort value is returned.  If no matching
+// port is found, an error is returned.
+func resolvePort(portReference intstr.IntOrString, container *v1.Container) (int, error) {
+	if portReference.Type == intstr.Int {
+		return portReference.IntValue(), nil
+	}
+	portName := portReference.StrVal
+	port, err := strconv.Atoi(portName)
+	if err == nil {
+		return port, nil
+	}
+	for _, portSpec := range container.Ports {
+		if portSpec.Name == portName {
+			return int(portSpec.ContainerPort), nil
+		}
+	}
+	return -1, fmt.Errorf("couldn't find port: %v in %v", portReference, container)
+}
+
+func (hr *handlerRunner) runSleepHandler(ctx context.Context, seconds int64) error {
+	if !utilfeature.DefaultFeatureGate.Enabled(features.PodLifecycleSleepAction) {
+		return nil
+	}
+	c := time.After(time.Duration(seconds) * time.Second)
+	select {
+	case <-ctx.Done():
+		// unexpected termination
+		metrics.LifecycleHandlerSleepTerminated.Inc()
+		return fmt.Errorf("container terminated before sleep hook finished")
+	case <-c:
+		return nil
+	}
+}
+
+func (hr *handlerRunner) runHTTPHandler(ctx context.Context, pod *v1.Pod, container *v1.Container, handler *v1.LifecycleHandler, eventRecorder record.EventRecorder) error {
+	host := handler.HTTPGet.Host
+	podIP := host
+	if len(host) == 0 {
+		status, err := hr.containerManager.GetPodStatus(ctx, pod.UID, pod.Name, pod.Namespace)
+		if err != nil {
+			klog.ErrorS(err, "Unable to get pod info, event handlers may be invalid.", "pod", klog.KObj(pod))
+			return err
+		}
+		if len(status.IPs) == 0 {
+			return fmt.Errorf("failed to find networking container: %v", status)
+		}
+		host = status.IPs[0]
+		podIP = host
+	}
+
+	req, err := httpprobe.NewRequestForHTTPGetAction(handler.HTTPGet, container, podIP, "lifecycle")
+	if err != nil {
+		return err
+	}
+	resp, err := hr.httpDoer.Do(req)
+	discardHTTPRespBody(resp)
+
+	if isHTTPResponseError(err) {
+		klog.V(1).ErrorS(err, "HTTPS request to lifecycle hook got HTTP response, retrying with HTTP.", "pod", klog.KObj(pod), "host", req.URL.Host)
+
+		req := req.Clone(context.Background())
+		req.URL.Scheme = "http"
+		req.Header.Del("Authorization")
+		resp, httpErr := hr.httpDoer.Do(req)
+
+		// clear err since the fallback succeeded
+		if httpErr == nil {
+			metrics.LifecycleHandlerHTTPFallbacks.Inc()
+			if eventRecorder != nil {
+				// report the fallback with an event
+				eventRecorder.Event(pod, v1.EventTypeWarning, "LifecycleHTTPFallback", fmt.Sprintf("request to HTTPS lifecycle hook %s got HTTP response, retry with HTTP succeeded", req.URL.Host))
+			}
+			err = nil
+		}
+		discardHTTPRespBody(resp)
+	}
+	return err
+}
+
+func discardHTTPRespBody(resp *http.Response) {
+	if resp == nil {
+		return
+	}
+
+	// Ensure the response body is fully read and closed
+	// before we reconnect, so that we reuse the same TCP
+	// connection.
+	defer resp.Body.Close()
+
+	if resp.ContentLength <= maxRespBodyLength {
+		io.Copy(io.Discard, &io.LimitedReader{R: resp.Body, N: maxRespBodyLength})
+	}
+}
+
+// NewAppArmorAdmitHandler returns a PodAdmitHandler which is used to evaluate
+// if a pod can be admitted from the perspective of AppArmor.
+func NewAppArmorAdmitHandler(validator apparmor.Validator) PodAdmitHandler {
+	return &appArmorAdmitHandler{
+		Validator: validator,
+	}
+}
+
+type appArmorAdmitHandler struct {
+	apparmor.Validator
+}
+
+func (a *appArmorAdmitHandler) Admit(attrs *PodAdmitAttributes) PodAdmitResult {
+	// If the pod is already running or terminated, no need to recheck AppArmor.
+	if attrs.Pod.Status.Phase != v1.PodPending {
+		return PodAdmitResult{Admit: true}
+	}
+
+	err := a.Validate(attrs.Pod)
+	if err == nil {
+		return PodAdmitResult{Admit: true}
+	}
+	return PodAdmitResult{
+		Admit:   false,
+		Reason:  AppArmorNotAdmittedReason,
+		Message: fmt.Sprintf("Cannot enforce AppArmor: %v", err),
+	}
+}
+
+func isHTTPResponseError(err error) bool {
+	if err == nil {
+		return false
+	}
+	urlErr := &url.Error{}
+	if !errors.As(err, &urlErr) {
+		return false
+	}
+	return strings.Contains(urlErr.Err.Error(), "server gave HTTP response to HTTPS client")
+}