Upgrade k8s package verison (#5358)
* upgrade k8s package version Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io> * Script upgrade and code formatting. Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io> Signed-off-by: hongzhouzi <hongzhouzi@kubesphere.io>
This commit is contained in:
93
vendor/k8s.io/apiserver/pkg/admission/plugin/webhook/validating/dispatcher.go
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vendored
93
vendor/k8s.io/apiserver/pkg/admission/plugin/webhook/validating/dispatcher.go
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vendored
@@ -32,12 +32,23 @@ import (
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webhookerrors "k8s.io/apiserver/pkg/admission/plugin/webhook/errors"
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"k8s.io/apiserver/pkg/admission/plugin/webhook/generic"
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webhookrequest "k8s.io/apiserver/pkg/admission/plugin/webhook/request"
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endpointsrequest "k8s.io/apiserver/pkg/endpoints/request"
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webhookutil "k8s.io/apiserver/pkg/util/webhook"
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"k8s.io/apiserver/pkg/warning"
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"k8s.io/klog/v2"
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utiltrace "k8s.io/utils/trace"
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)
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const (
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// ValidatingAuditAnnotationPrefix is a prefix for keeping noteworthy
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// validating audit annotations.
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ValidatingAuditAnnotationPrefix = "validating.webhook.admission.k8s.io/"
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// ValidatingAuditAnnotationFailedOpenKeyPrefix in an annotation indicates
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// the validating webhook failed open when the webhook backend connection
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// failed or returned an internal server error.
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ValidatingAuditAnnotationFailedOpenKeyPrefix = "failed-open." + ValidatingAuditAnnotationPrefix
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)
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type validatingDispatcher struct {
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cm *webhookutil.ClientManager
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plugin *Plugin
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@@ -89,44 +100,84 @@ func (d *validatingDispatcher) Dispatch(ctx context.Context, attr admission.Attr
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}
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wg := sync.WaitGroup{}
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errCh := make(chan error, len(relevantHooks))
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errCh := make(chan error, 2*len(relevantHooks)) // double the length to handle extra errors for panics in the gofunc
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wg.Add(len(relevantHooks))
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for i := range relevantHooks {
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go func(invocation *generic.WebhookInvocation) {
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go func(invocation *generic.WebhookInvocation, idx int) {
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ignoreClientCallFailures := false
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hookName := "unknown"
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versionedAttr := versionedAttrs[invocation.Kind]
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// The ordering of these two defers is critical. The wg.Done will release the parent go func to close the errCh
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// that is used by the second defer to report errors. The recovery and error reporting must be done first.
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defer wg.Done()
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defer func() {
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// HandleCrash has already called the crash handlers and it has been configured to utilruntime.ReallyCrash
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// This block prevents the second panic from failing our process.
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// This failure mode for the handler functions properly using the channel below.
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recover()
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}()
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defer utilruntime.HandleCrash(
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func(r interface{}) {
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if r == nil {
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return
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}
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if ignoreClientCallFailures {
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// if failures are supposed to ignored, ignore it
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klog.Warningf("Panic calling webhook, failing open %v: %v", hookName, r)
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admissionmetrics.Metrics.ObserveWebhookFailOpen(ctx, hookName, "validating")
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key := fmt.Sprintf("%sround_0_index_%d", ValidatingAuditAnnotationFailedOpenKeyPrefix, idx)
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value := hookName
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if err := versionedAttr.Attributes.AddAnnotation(key, value); err != nil {
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klog.Warningf("Failed to set admission audit annotation %s to %s for validating webhook %s: %v", key, value, hookName, err)
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}
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return
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}
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// this ensures that the admission request fails and a message is provided.
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errCh <- apierrors.NewInternalError(fmt.Errorf("ValidatingAdmissionWebhook/%v has panicked: %v", hookName, r))
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},
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)
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hook, ok := invocation.Webhook.GetValidatingWebhook()
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if !ok {
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utilruntime.HandleError(fmt.Errorf("validating webhook dispatch requires v1.ValidatingWebhook, but got %T", hook))
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return
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}
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versionedAttr := versionedAttrs[invocation.Kind]
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hookName = hook.Name
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ignoreClientCallFailures = hook.FailurePolicy != nil && *hook.FailurePolicy == v1.Ignore
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t := time.Now()
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err := d.callHook(ctx, hook, invocation, versionedAttr)
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ignoreClientCallFailures := hook.FailurePolicy != nil && *hook.FailurePolicy == v1.Ignore
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rejected := false
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if err != nil {
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switch err := err.(type) {
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case *webhookutil.ErrCallingWebhook:
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if !ignoreClientCallFailures {
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rejected = true
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admissionmetrics.Metrics.ObserveWebhookRejection(ctx, hook.Name, "validating", string(versionedAttr.Attributes.GetOperation()), admissionmetrics.WebhookRejectionCallingWebhookError, 0)
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admissionmetrics.Metrics.ObserveWebhookRejection(ctx, hook.Name, "validating", string(versionedAttr.Attributes.GetOperation()), admissionmetrics.WebhookRejectionCallingWebhookError, int(err.Status.ErrStatus.Code))
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}
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admissionmetrics.Metrics.ObserveWebhook(ctx, hook.Name, time.Since(t), rejected, versionedAttr.Attributes, "validating", int(err.Status.ErrStatus.Code))
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case *webhookutil.ErrWebhookRejection:
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rejected = true
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admissionmetrics.Metrics.ObserveWebhookRejection(ctx, hook.Name, "validating", string(versionedAttr.Attributes.GetOperation()), admissionmetrics.WebhookRejectionNoError, int(err.Status.ErrStatus.Code))
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admissionmetrics.Metrics.ObserveWebhook(ctx, hook.Name, time.Since(t), rejected, versionedAttr.Attributes, "validating", int(err.Status.ErrStatus.Code))
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default:
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rejected = true
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admissionmetrics.Metrics.ObserveWebhookRejection(ctx, hook.Name, "validating", string(versionedAttr.Attributes.GetOperation()), admissionmetrics.WebhookRejectionAPIServerInternalError, 0)
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admissionmetrics.Metrics.ObserveWebhook(ctx, hook.Name, time.Since(t), rejected, versionedAttr.Attributes, "validating", 0)
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}
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}
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admissionmetrics.Metrics.ObserveWebhook(ctx, time.Since(t), rejected, versionedAttr.Attributes, "validating", hook.Name)
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if err == nil {
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} else {
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admissionmetrics.Metrics.ObserveWebhook(ctx, hook.Name, time.Since(t), rejected, versionedAttr.Attributes, "validating", 200)
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return
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}
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if callErr, ok := err.(*webhookutil.ErrCallingWebhook); ok {
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if ignoreClientCallFailures {
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klog.Warningf("Failed calling webhook, failing open %v: %v", hook.Name, callErr)
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admissionmetrics.Metrics.ObserveWebhookFailOpen(ctx, hook.Name, "validating")
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key := fmt.Sprintf("%sround_0_index_%d", ValidatingAuditAnnotationFailedOpenKeyPrefix, idx)
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value := hook.Name
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if err := versionedAttr.Attributes.AddAnnotation(key, value); err != nil {
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klog.Warningf("Failed to set admission audit annotation %s to %s for validating webhook %s: %v", key, value, hook.Name, err)
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}
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utilruntime.HandleError(callErr)
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return
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}
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@@ -141,7 +192,7 @@ func (d *validatingDispatcher) Dispatch(ctx context.Context, attr admission.Attr
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}
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klog.Warningf("rejected by webhook %q: %#v", hook.Name, err)
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errCh <- err
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}(relevantHooks[i])
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}(relevantHooks[i], i)
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}
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wg.Wait()
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close(errCh)
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@@ -165,7 +216,7 @@ func (d *validatingDispatcher) Dispatch(ctx context.Context, attr admission.Attr
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func (d *validatingDispatcher) callHook(ctx context.Context, h *v1.ValidatingWebhook, invocation *generic.WebhookInvocation, attr *generic.VersionedAttributes) error {
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if attr.Attributes.IsDryRun() {
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if h.SideEffects == nil {
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return &webhookutil.ErrCallingWebhook{WebhookName: h.Name, Reason: fmt.Errorf("Webhook SideEffects is nil")}
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return &webhookutil.ErrCallingWebhook{WebhookName: h.Name, Reason: fmt.Errorf("Webhook SideEffects is nil"), Status: apierrors.NewBadRequest("Webhook SideEffects is nil")}
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}
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if !(*h.SideEffects == v1.SideEffectClassNone || *h.SideEffects == v1.SideEffectClassNoneOnDryRun) {
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return webhookerrors.NewDryRunUnsupportedErr(h.Name)
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@@ -174,12 +225,12 @@ func (d *validatingDispatcher) callHook(ctx context.Context, h *v1.ValidatingWeb
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uid, request, response, err := webhookrequest.CreateAdmissionObjects(attr, invocation)
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if err != nil {
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return &webhookutil.ErrCallingWebhook{WebhookName: h.Name, Reason: err}
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return &webhookutil.ErrCallingWebhook{WebhookName: h.Name, Reason: fmt.Errorf("could not create admission objects: %w", err), Status: apierrors.NewBadRequest("error creating admission objects")}
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}
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// Make the webhook request
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client, err := invocation.Webhook.GetRESTClient(d.cm)
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if err != nil {
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return &webhookutil.ErrCallingWebhook{WebhookName: h.Name, Reason: err}
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return &webhookutil.ErrCallingWebhook{WebhookName: h.Name, Reason: fmt.Errorf("could not get REST client: %w", err), Status: apierrors.NewBadRequest("error getting REST client")}
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}
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trace := utiltrace.New("Call validating webhook",
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utiltrace.Field{"configuration", invocation.Webhook.GetConfigurationName()},
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@@ -212,14 +263,26 @@ func (d *validatingDispatcher) callHook(ctx context.Context, h *v1.ValidatingWeb
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}
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}
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if err := r.Do(ctx).Into(response); err != nil {
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return &webhookutil.ErrCallingWebhook{WebhookName: h.Name, Reason: err}
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do := func() { err = r.Do(ctx).Into(response) }
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if wd, ok := endpointsrequest.LatencyTrackersFrom(ctx); ok {
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tmp := do
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do = func() { wd.ValidatingWebhookTracker.Track(tmp) }
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}
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do()
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if err != nil {
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var status *apierrors.StatusError
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if se, ok := err.(*apierrors.StatusError); ok {
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status = se
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} else {
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status = apierrors.NewBadRequest("error calling webhook")
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}
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return &webhookutil.ErrCallingWebhook{WebhookName: h.Name, Reason: fmt.Errorf("failed to call webhook: %w", err), Status: status}
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}
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trace.Step("Request completed")
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result, err := webhookrequest.VerifyAdmissionResponse(uid, false, response)
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if err != nil {
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return &webhookutil.ErrCallingWebhook{WebhookName: h.Name, Reason: err}
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return &webhookutil.ErrCallingWebhook{WebhookName: h.Name, Reason: fmt.Errorf("received invalid webhook response: %w", err), Status: apierrors.NewServiceUnavailable("error validating webhook response")}
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}
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for k, v := range result.AuditAnnotations {
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