Update k8s dependency version to 1.21

Signed-off-by: xinyanwu409 <wxinyan@vmware>

vendor/k8s.io/component-base/metrics/summary.go

@@ -17,6 +17,7 @@ limitations under the License.
 package metrics
 
 import (
+	"context"
 	"github.com/blang/semver"
 	"github.com/prometheus/client_golang/prometheus"
 )
@@ -74,6 +75,11 @@ func (s *Summary) initializeDeprecatedMetric() {
 	s.initializeMetric()
 }
 
+// WithContext allows the normal Summary metric to pass in context. The context is no-op now.
+func (s *Summary) WithContext(ctx context.Context) ObserverMetric {
+	return s.ObserverMetric
+}
+
 // SummaryVec is the internal representation of our wrapping struct around prometheus
 // summaryVecs.
 //
@@ -93,12 +99,19 @@ type SummaryVec struct {
 func NewSummaryVec(opts *SummaryOpts, labels []string) *SummaryVec {
 	opts.StabilityLevel.setDefaults()
 
+	fqName := BuildFQName(opts.Namespace, opts.Subsystem, opts.Name)
+	allowListLock.RLock()
+	if allowList, ok := labelValueAllowLists[fqName]; ok {
+		opts.LabelValueAllowLists = allowList
+	}
+	allowListLock.RUnlock()
+
 	v := &SummaryVec{
 		SummaryOpts:    opts,
 		originalLabels: labels,
 		lazyMetric:     lazyMetric{},
 	}
-	v.lazyInit(v, BuildFQName(opts.Namespace, opts.Subsystem, opts.Name))
+	v.lazyInit(v, fqName)
 	return v
 }
 
@@ -133,6 +146,9 @@ func (v *SummaryVec) WithLabelValues(lvs ...string) ObserverMetric {
 	if !v.IsCreated() {
 		return noop
 	}
+	if v.LabelValueAllowLists != nil {
+		v.LabelValueAllowLists.ConstrainToAllowedList(v.originalLabels, lvs)
+	}
 	return v.SummaryVec.WithLabelValues(lvs...)
 }
 
@@ -144,6 +160,9 @@ func (v *SummaryVec) With(labels map[string]string) ObserverMetric {
 	if !v.IsCreated() {
 		return noop
 	}
+	if v.LabelValueAllowLists != nil {
+		v.LabelValueAllowLists.ConstrainLabelMap(labels)
+	}
 	return v.SummaryVec.With(labels)
 }
 
@@ -169,3 +188,27 @@ func (v *SummaryVec) Reset() {
 
 	v.SummaryVec.Reset()
 }
+
+// WithContext returns wrapped SummaryVec with context
+func (v *SummaryVec) WithContext(ctx context.Context) *SummaryVecWithContext {
+	return &SummaryVecWithContext{
+		ctx:        ctx,
+		SummaryVec: *v,
+	}
+}
+
+// SummaryVecWithContext is the wrapper of SummaryVec with context.
+type SummaryVecWithContext struct {
+	SummaryVec
+	ctx context.Context
+}
+
+// WithLabelValues is the wrapper of SummaryVec.WithLabelValues.
+func (vc *SummaryVecWithContext) WithLabelValues(lvs ...string) ObserverMetric {
+	return vc.SummaryVec.WithLabelValues(lvs...)
+}
+
+// With is the wrapper of SummaryVec.With.
+func (vc *SummaryVecWithContext) With(labels map[string]string) ObserverMetric {
+	return vc.SummaryVec.With(labels)
+}