chore: update docker and k8s

vendor/k8s.io/utils/trace/trace.go

@@ -0,0 +1,131 @@
+/*
+Copyright 2015 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 trace
+
+import (
+	"bytes"
+	"fmt"
+	"math/rand"
+	"time"
+
+	"k8s.io/klog"
+)
+
+// Field is a key value pair that provides additional details about the trace.
+type Field struct {
+	Key   string
+	Value interface{}
+}
+
+func (f Field) format() string {
+	return fmt.Sprintf("%s:%v", f.Key, f.Value)
+}
+
+func writeFields(b *bytes.Buffer, l []Field) {
+	for i, f := range l {
+		b.WriteString(f.format())
+		if i < len(l)-1 {
+			b.WriteString(",")
+		}
+	}
+}
+
+type traceStep struct {
+	stepTime time.Time
+	msg      string
+	fields   []Field
+}
+
+// Trace keeps track of a set of "steps" and allows us to log a specific
+// step if it took longer than its share of the total allowed time
+type Trace struct {
+	name      string
+	fields    []Field
+	startTime time.Time
+	steps     []traceStep
+}
+
+// New creates a Trace with the specified name. The name identifies the operation to be traced. The
+// Fields add key value pairs to provide additional details about the trace, such as operation inputs.
+func New(name string, fields ...Field) *Trace {
+	return &Trace{name: name, startTime: time.Now(), fields: fields}
+}
+
+// Step adds a new step with a specific message. Call this at the end of an execution step to record
+// how long it took. The Fields add key value pairs to provide additional details about the trace
+// step.
+func (t *Trace) Step(msg string, fields ...Field) {
+	if t.steps == nil {
+		// traces almost always have less than 6 steps, do this to avoid more than a single allocation
+		t.steps = make([]traceStep, 0, 6)
+	}
+	t.steps = append(t.steps, traceStep{stepTime: time.Now(), msg: msg, fields: fields})
+}
+
+// Log is used to dump all the steps in the Trace
+func (t *Trace) Log() {
+	// an explicit logging request should dump all the steps out at the higher level
+	t.logWithStepThreshold(0)
+}
+
+func (t *Trace) logWithStepThreshold(stepThreshold time.Duration) {
+	var buffer bytes.Buffer
+	tracenum := rand.Int31()
+	endTime := time.Now()
+
+	totalTime := endTime.Sub(t.startTime)
+	buffer.WriteString(fmt.Sprintf("Trace[%d]: %q ", tracenum, t.name))
+	if len(t.fields) > 0 {
+		writeFields(&buffer, t.fields)
+		buffer.WriteString(" ")
+	}
+	buffer.WriteString(fmt.Sprintf("(started: %v) (total time: %v):\n", t.startTime, totalTime))
+	lastStepTime := t.startTime
+	for _, step := range t.steps {
+		stepDuration := step.stepTime.Sub(lastStepTime)
+		if stepThreshold == 0 || stepDuration > stepThreshold || klog.V(4) {
+			buffer.WriteString(fmt.Sprintf("Trace[%d]: [%v] [%v] ", tracenum, step.stepTime.Sub(t.startTime), stepDuration))
+			buffer.WriteString(step.msg)
+			if len(step.fields) > 0 {
+				buffer.WriteString(" ")
+				writeFields(&buffer, step.fields)
+			}
+			buffer.WriteString("\n")
+		}
+		lastStepTime = step.stepTime
+	}
+	stepDuration := endTime.Sub(lastStepTime)
+	if stepThreshold == 0 || stepDuration > stepThreshold || klog.V(4) {
+		buffer.WriteString(fmt.Sprintf("Trace[%d]: [%v] [%v] END\n", tracenum, endTime.Sub(t.startTime), stepDuration))
+	}
+
+	klog.Info(buffer.String())
+}
+
+// LogIfLong is used to dump steps that took longer than its share
+func (t *Trace) LogIfLong(threshold time.Duration) {
+	if time.Since(t.startTime) >= threshold {
+		// if any step took more than it's share of the total allowed time, it deserves a higher log level
+		stepThreshold := threshold / time.Duration(len(t.steps)+1)
+		t.logWithStepThreshold(stepThreshold)
+	}
+}
+
+// TotalTime can be used to figure out how long it took since the Trace was created
+func (t *Trace) TotalTime() time.Duration {
+	return time.Since(t.startTime)
+}