update vendor

Signed-off-by: Roland.Ma <rolandma@yunify.com>

vendor/k8s.io/apiserver/pkg/authentication/authenticatorfactory/delegating.go

@@ -22,6 +22,7 @@ import (
 
 	"github.com/go-openapi/spec"
 
+	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/apiserver/pkg/authentication/authenticator"
 	"k8s.io/apiserver/pkg/authentication/group"
 	"k8s.io/apiserver/pkg/authentication/request/anonymous"
@@ -43,6 +44,14 @@ type DelegatingAuthenticatorConfig struct {
 	// TokenAccessReviewClient is a client to do token review. It can be nil. Then every token is ignored.
 	TokenAccessReviewClient authenticationclient.TokenReviewInterface
 
+	// TokenAccessReviewTimeout specifies a time limit for requests made by the authorization webhook client.
+	TokenAccessReviewTimeout time.Duration
+
+	// WebhookRetryBackoff specifies the backoff parameters for the authentication webhook retry logic.
+	// This allows us to configure the sleep time at each iteration and the maximum number of retries allowed
+	// before we fail the webhook call in order to limit the fan out that ensues when the system is degraded.
+	WebhookRetryBackoff *wait.Backoff
+
 	// CacheTTL is the length of time that a token authentication answer will be cached.
 	CacheTTL time.Duration
 
@@ -79,7 +88,10 @@ func (c DelegatingAuthenticatorConfig) New() (authenticator.Request, *spec.Secur
 	}
 
 	if c.TokenAccessReviewClient != nil {
-		tokenAuth, err := webhooktoken.NewFromInterface(c.TokenAccessReviewClient, c.APIAudiences)
+		if c.WebhookRetryBackoff == nil {
+			return nil, nil, errors.New("retry backoff parameters for delegating authentication webhook has not been specified")
+		}
+		tokenAuth, err := webhooktoken.NewFromInterface(c.TokenAccessReviewClient, c.APIAudiences, *c.WebhookRetryBackoff, c.TokenAccessReviewTimeout)
 		if err != nil {
 			return nil, nil, err
 		}