rebase: update kubernetes to 1.26.1

update kubernetes and its dependencies
to v1.26.1

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/k8s.io/component-base/tracing/tracing.go

@@ -0,0 +1,92 @@
+/*
+Copyright 2022 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 tracing
+
+import (
+	"context"
+	"time"
+
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/trace"
+
+	utiltrace "k8s.io/utils/trace"
+)
+
+const instrumentationScope = "k8s.io/component-base/tracing"
+
+// Start creates spans using both OpenTelemetry, and the k8s.io/utils/trace package.
+// It only creates an OpenTelemetry span if the incoming context already includes a span.
+func Start(ctx context.Context, name string, attributes ...attribute.KeyValue) (context.Context, *Span) {
+	// If the incoming context already includes an OpenTelemetry span, create a child span with the provided name and attributes.
+	// If the caller is not using OpenTelemetry, or has tracing disabled (e.g. with a component-specific feature flag), this is a noop.
+	ctx, otelSpan := trace.SpanFromContext(ctx).TracerProvider().Tracer(instrumentationScope).Start(ctx, name, trace.WithAttributes(attributes...))
+	// If there is already a utiltrace span in the context, use that as our parent span.
+	utilSpan := utiltrace.FromContext(ctx).Nest(name, attributesToFields(attributes)...)
+	// Set the trace as active in the context so that subsequent Start calls create nested spans.
+	return utiltrace.ContextWithTrace(ctx, utilSpan), &Span{
+		otelSpan: otelSpan,
+		utilSpan: utilSpan,
+	}
+}
+
+// Span is a component part of a trace. It represents a single named
+// and timed operation of a workflow being observed.
+// This Span is a combination of an OpenTelemetry and k8s.io/utils/trace span
+// to facilitate the migration to OpenTelemetry.
+type Span struct {
+	otelSpan trace.Span
+	utilSpan *utiltrace.Trace
+}
+
+// AddEvent adds a point-in-time event with a name and attributes.
+func (s *Span) AddEvent(name string, attributes ...attribute.KeyValue) {
+	s.otelSpan.AddEvent(name, trace.WithAttributes(attributes...))
+	if s.utilSpan != nil {
+		s.utilSpan.Step(name, attributesToFields(attributes)...)
+	}
+}
+
+// End ends the span, and logs if the span duration is greater than the logThreshold.
+func (s *Span) End(logThreshold time.Duration) {
+	s.otelSpan.End()
+	if s.utilSpan != nil {
+		s.utilSpan.LogIfLong(logThreshold)
+	}
+}
+
+func attributesToFields(attributes []attribute.KeyValue) []utiltrace.Field {
+	fields := make([]utiltrace.Field, len(attributes))
+	for i := range attributes {
+		attr := attributes[i]
+		fields[i] = utiltrace.Field{Key: string(attr.Key), Value: attr.Value.AsInterface()}
+	}
+	return fields
+}
+
+// SpanFromContext returns the *Span from the current context. It is composed of the active
+// OpenTelemetry and k8s.io/utils/trace spans.
+func SpanFromContext(ctx context.Context) *Span {
+	return &Span{
+		otelSpan: trace.SpanFromContext(ctx),
+		utilSpan: utiltrace.FromContext(ctx),
+	}
+}
+
+// ContextWithSpan returns a context with the Span included in the context.
+func ContextWithSpan(ctx context.Context, s *Span) context.Context {
+	return trace.ContextWithSpan(utiltrace.ContextWithTrace(ctx, s.utilSpan), s.otelSpan)
+}