Downgrade Kubernetes vendor version

Multus community decide that multus support the Kubernetes that
Kubernetes community supports, so changed vendor code to the
oldest version of currently supported.

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

@@ -18,17 +18,10 @@ package metrics
 
 import (
 	"fmt"
-	"strings"
 	"sync"
 	"time"
 
 	"github.com/prometheus/client_golang/prometheus"
-	"k8s.io/apimachinery/pkg/util/sets"
-)
-
-var (
-	labelValueAllowLists = map[string]*MetricLabelAllowList{}
-	allowListLock        sync.RWMutex
 )
 
 // KubeOpts is superset struct for prometheus.Opts. The prometheus Opts structure
@@ -38,16 +31,15 @@ var (
 // Name must be set to a non-empty string. DeprecatedVersion is defined only
 // if the metric for which this options applies is, in fact, deprecated.
 type KubeOpts struct {
-	Namespace            string
-	Subsystem            string
-	Name                 string
-	Help                 string
-	ConstLabels          map[string]string
-	DeprecatedVersion    string
-	deprecateOnce        sync.Once
-	annotateOnce         sync.Once
-	StabilityLevel       StabilityLevel
-	LabelValueAllowLists *MetricLabelAllowList
+	Namespace         string
+	Subsystem         string
+	Name              string
+	Help              string
+	ConstLabels       map[string]string
+	DeprecatedVersion string
+	deprecateOnce     sync.Once
+	annotateOnce      sync.Once
+	StabilityLevel    StabilityLevel
 }
 
 // BuildFQName joins the given three name components by "_". Empty name
@@ -148,17 +140,16 @@ func (o *GaugeOpts) toPromGaugeOpts() prometheus.GaugeOpts {
 // and can safely be left at their zero value, although it is strongly
 // encouraged to set a Help string.
 type HistogramOpts struct {
-	Namespace            string
-	Subsystem            string
-	Name                 string
-	Help                 string
-	ConstLabels          map[string]string
-	Buckets              []float64
-	DeprecatedVersion    string
-	deprecateOnce        sync.Once
-	annotateOnce         sync.Once
-	StabilityLevel       StabilityLevel
-	LabelValueAllowLists *MetricLabelAllowList
+	Namespace         string
+	Subsystem         string
+	Name              string
+	Help              string
+	ConstLabels       map[string]string
+	Buckets           []float64
+	DeprecatedVersion string
+	deprecateOnce     sync.Once
+	annotateOnce      sync.Once
+	StabilityLevel    StabilityLevel
 }
 
 // Modify help description on the metric description.
@@ -195,20 +186,19 @@ func (o *HistogramOpts) toPromHistogramOpts() prometheus.HistogramOpts {
 // a help string and to explicitly set the Objectives field to the desired value
 // as the default value will change in the upcoming v0.10 of the library.
 type SummaryOpts struct {
-	Namespace            string
-	Subsystem            string
-	Name                 string
-	Help                 string
-	ConstLabels          map[string]string
-	Objectives           map[float64]float64
-	MaxAge               time.Duration
-	AgeBuckets           uint32
-	BufCap               uint32
-	DeprecatedVersion    string
-	deprecateOnce        sync.Once
-	annotateOnce         sync.Once
-	StabilityLevel       StabilityLevel
-	LabelValueAllowLists *MetricLabelAllowList
+	Namespace         string
+	Subsystem         string
+	Name              string
+	Help              string
+	ConstLabels       map[string]string
+	Objectives        map[float64]float64
+	MaxAge            time.Duration
+	AgeBuckets        uint32
+	BufCap            uint32
+	DeprecatedVersion string
+	deprecateOnce     sync.Once
+	annotateOnce      sync.Once
+	StabilityLevel    StabilityLevel
 }
 
 // Modify help description on the metric description.
@@ -253,49 +243,3 @@ func (o *SummaryOpts) toPromSummaryOpts() prometheus.SummaryOpts {
 		BufCap:      o.BufCap,
 	}
 }
-
-type MetricLabelAllowList struct {
-	labelToAllowList map[string]sets.String
-}
-
-func (allowList *MetricLabelAllowList) ConstrainToAllowedList(labelNameList, labelValueList []string) {
-	for index, value := range labelValueList {
-		name := labelNameList[index]
-		if allowValues, ok := allowList.labelToAllowList[name]; ok {
-			if !allowValues.Has(value) {
-				labelValueList[index] = "unexpected"
-			}
-		}
-	}
-}
-
-func (allowList *MetricLabelAllowList) ConstrainLabelMap(labels map[string]string) {
-	for name, value := range labels {
-		if allowValues, ok := allowList.labelToAllowList[name]; ok {
-			if !allowValues.Has(value) {
-				labels[name] = "unexpected"
-			}
-		}
-	}
-}
-
-func SetLabelAllowListFromCLI(allowListMapping map[string]string) {
-	allowListLock.Lock()
-	defer allowListLock.Unlock()
-	for metricLabelName, labelValues := range allowListMapping {
-		metricName := strings.Split(metricLabelName, ",")[0]
-		labelName := strings.Split(metricLabelName, ",")[1]
-		valueSet := sets.NewString(strings.Split(labelValues, ",")...)
-
-		allowList, ok := labelValueAllowLists[metricName]
-		if ok {
-			allowList.labelToAllowList[labelName] = valueSet
-		} else {
-			labelToAllowList := make(map[string]sets.String)
-			labelToAllowList[labelName] = valueSet
-			labelValueAllowLists[metricName] = &MetricLabelAllowList{
-				labelToAllowList,
-			}
-		}
-	}
-}