vkubelet: set kubelet version to build version (#446)

* deps: bump to Kubernetes 1.13.1

Signed-off-by: Paulo Pires <pjpires@gmail.com>

* version: new VK version

Signed-off-by: Paulo Pires <pjpires@gmail.com>

vendor/k8s.io/client-go/util/workqueue/metrics.go

@@ -19,6 +19,8 @@ package workqueue
 import (
 	"sync"
 	"time"
+
+	"k8s.io/apimachinery/pkg/util/clock"
 )
 
 // This file provides abstractions for setting the provider (e.g., prometheus)
@@ -28,6 +30,7 @@ type queueMetrics interface {
 	add(item t)
 	get(item t)
 	done(item t)
+	updateUnfinishedWork()
 }
 
 // GaugeMetric represents a single numerical value that can arbitrarily go up
@@ -37,6 +40,12 @@ type GaugeMetric interface {
 	Dec()
 }
 
+// SettableGaugeMetric represents a single numerical value that can arbitrarily go up
+// and down. (Separate from GaugeMetric to preserve backwards compatibility.)
+type SettableGaugeMetric interface {
+	Set(float64)
+}
+
 // CounterMetric represents a single numerical value that only ever
 // goes up.
 type CounterMetric interface {
@@ -52,9 +61,13 @@ type noopMetric struct{}
 
 func (noopMetric) Inc()            {}
 func (noopMetric) Dec()            {}
+func (noopMetric) Set(float64)     {}
 func (noopMetric) Observe(float64) {}
 
+// defaultQueueMetrics expects the caller to lock before setting any metrics.
 type defaultQueueMetrics struct {
+	clock clock.Clock
+
 	// current depth of a workqueue
 	depth GaugeMetric
 	// total number of adds handled by a workqueue
@@ -65,6 +78,10 @@ type defaultQueueMetrics struct {
 	workDuration         SummaryMetric
 	addTimes             map[t]time.Time
 	processingStartTimes map[t]time.Time
+
+	// how long have current threads been working?
+	unfinishedWorkSeconds   SettableGaugeMetric
+	longestRunningProcessor SettableGaugeMetric
 }
 
 func (m *defaultQueueMetrics) add(item t) {
@@ -75,7 +92,7 @@ func (m *defaultQueueMetrics) add(item t) {
 	m.adds.Inc()
 	m.depth.Inc()
 	if _, exists := m.addTimes[item]; !exists {
-		m.addTimes[item] = time.Now()
+		m.addTimes[item] = m.clock.Now()
 	}
 }
 
@@ -85,9 +102,9 @@ func (m *defaultQueueMetrics) get(item t) {
 	}
 
 	m.depth.Dec()
-	m.processingStartTimes[item] = time.Now()
+	m.processingStartTimes[item] = m.clock.Now()
 	if startTime, exists := m.addTimes[item]; exists {
-		m.latency.Observe(sinceInMicroseconds(startTime))
+		m.latency.Observe(m.sinceInMicroseconds(startTime))
 		delete(m.addTimes, item)
 	}
 }
@@ -98,14 +115,39 @@ func (m *defaultQueueMetrics) done(item t) {
 	}
 
 	if startTime, exists := m.processingStartTimes[item]; exists {
-		m.workDuration.Observe(sinceInMicroseconds(startTime))
+		m.workDuration.Observe(m.sinceInMicroseconds(startTime))
 		delete(m.processingStartTimes, item)
 	}
 }
 
+func (m *defaultQueueMetrics) updateUnfinishedWork() {
+	// Note that a summary metric would be better for this, but prometheus
+	// doesn't seem to have non-hacky ways to reset the summary metrics.
+	var total float64
+	var oldest float64
+	for _, t := range m.processingStartTimes {
+		age := m.sinceInMicroseconds(t)
+		total += age
+		if age > oldest {
+			oldest = age
+		}
+	}
+	// Convert to seconds; microseconds is unhelpfully granular for this.
+	total /= 1000000
+	m.unfinishedWorkSeconds.Set(total)
+	m.longestRunningProcessor.Set(oldest) // in microseconds.
+}
+
+type noMetrics struct{}
+
+func (noMetrics) add(item t)            {}
+func (noMetrics) get(item t)            {}
+func (noMetrics) done(item t)           {}
+func (noMetrics) updateUnfinishedWork() {}
+
 // Gets the time since the specified start in microseconds.
-func sinceInMicroseconds(start time.Time) float64 {
-	return float64(time.Since(start).Nanoseconds() / time.Microsecond.Nanoseconds())
+func (m *defaultQueueMetrics) sinceInMicroseconds(start time.Time) float64 {
+	return float64(m.clock.Since(start).Nanoseconds() / time.Microsecond.Nanoseconds())
 }
 
 type retryMetrics interface {
@@ -130,6 +172,8 @@ type MetricsProvider interface {
 	NewAddsMetric(name string) CounterMetric
 	NewLatencyMetric(name string) SummaryMetric
 	NewWorkDurationMetric(name string) SummaryMetric
+	NewUnfinishedWorkSecondsMetric(name string) SettableGaugeMetric
+	NewLongestRunningProcessorMicrosecondsMetric(name string) SettableGaugeMetric
 	NewRetriesMetric(name string) CounterMetric
 }
 
@@ -151,29 +195,49 @@ func (_ noopMetricsProvider) NewWorkDurationMetric(name string) SummaryMetric {
 	return noopMetric{}
 }
 
+func (_ noopMetricsProvider) NewUnfinishedWorkSecondsMetric(name string) SettableGaugeMetric {
+	return noopMetric{}
+}
+
+func (_ noopMetricsProvider) NewLongestRunningProcessorMicrosecondsMetric(name string) SettableGaugeMetric {
+	return noopMetric{}
+}
+
 func (_ noopMetricsProvider) NewRetriesMetric(name string) CounterMetric {
 	return noopMetric{}
 }
 
-var metricsFactory = struct {
-	metricsProvider MetricsProvider
-	setProviders    sync.Once
-}{
+var globalMetricsFactory = queueMetricsFactory{
 	metricsProvider: noopMetricsProvider{},
 }
 
-func newQueueMetrics(name string) queueMetrics {
-	var ret *defaultQueueMetrics
-	if len(name) == 0 {
-		return ret
+type queueMetricsFactory struct {
+	metricsProvider MetricsProvider
+
+	onlyOnce sync.Once
+}
+
+func (f *queueMetricsFactory) setProvider(mp MetricsProvider) {
+	f.onlyOnce.Do(func() {
+		f.metricsProvider = mp
+	})
+}
+
+func (f *queueMetricsFactory) newQueueMetrics(name string, clock clock.Clock) queueMetrics {
+	mp := f.metricsProvider
+	if len(name) == 0 || mp == (noopMetricsProvider{}) {
+		return noMetrics{}
 	}
 	return &defaultQueueMetrics{
-		depth:                metricsFactory.metricsProvider.NewDepthMetric(name),
-		adds:                 metricsFactory.metricsProvider.NewAddsMetric(name),
-		latency:              metricsFactory.metricsProvider.NewLatencyMetric(name),
-		workDuration:         metricsFactory.metricsProvider.NewWorkDurationMetric(name),
-		addTimes:             map[t]time.Time{},
-		processingStartTimes: map[t]time.Time{},
+		clock:                   clock,
+		depth:                   mp.NewDepthMetric(name),
+		adds:                    mp.NewAddsMetric(name),
+		latency:                 mp.NewLatencyMetric(name),
+		workDuration:            mp.NewWorkDurationMetric(name),
+		unfinishedWorkSeconds:   mp.NewUnfinishedWorkSecondsMetric(name),
+		longestRunningProcessor: mp.NewLongestRunningProcessorMicrosecondsMetric(name),
+		addTimes:                map[t]time.Time{},
+		processingStartTimes:    map[t]time.Time{},
 	}
 }
 
@@ -183,13 +247,12 @@ func newRetryMetrics(name string) retryMetrics {
 		return ret
 	}
 	return &defaultRetryMetrics{
-		retries: metricsFactory.metricsProvider.NewRetriesMetric(name),
+		retries: globalMetricsFactory.metricsProvider.NewRetriesMetric(name),
 	}
 }
 
-// SetProvider sets the metrics provider of the metricsFactory.
+// SetProvider sets the metrics provider for all subsequently created work
+// queues. Only the first call has an effect.
 func SetProvider(metricsProvider MetricsProvider) {
-	metricsFactory.setProviders.Do(func() {
-		metricsFactory.metricsProvider = metricsProvider
-	})
+	globalMetricsFactory.setProvider(metricsProvider)
 }

vendor/k8s.io/client-go/util/workqueue/parallelizer.go

@@ -27,6 +27,8 @@ type DoWorkPieceFunc func(piece int)
 
 // Parallelize is a very simple framework that allows for parallelizing
 // N independent pieces of work.
+//
+// Deprecated: Use ParallelizeUntil instead.
 func Parallelize(workers, pieces int, doWorkPiece DoWorkPieceFunc) {
 	ParallelizeUntil(nil, workers, pieces, doWorkPiece)
 }

vendor/k8s.io/client-go/util/workqueue/queue.go

@@ -18,6 +18,9 @@ package workqueue
 
 import (
 	"sync"
+	"time"
+
+	"k8s.io/apimachinery/pkg/util/clock"
 )
 
 type Interface interface {
@@ -35,14 +38,29 @@ func New() *Type {
 }
 
 func NewNamed(name string) *Type {
-	return &Type{
-		dirty:      set{},
-		processing: set{},
-		cond:       sync.NewCond(&sync.Mutex{}),
-		metrics:    newQueueMetrics(name),
-	}
+	rc := clock.RealClock{}
+	return newQueue(
+		rc,
+		globalMetricsFactory.newQueueMetrics(name, rc),
+		defaultUnfinishedWorkUpdatePeriod,
+	)
 }
 
+func newQueue(c clock.Clock, metrics queueMetrics, updatePeriod time.Duration) *Type {
+	t := &Type{
+		clock:                      c,
+		dirty:                      set{},
+		processing:                 set{},
+		cond:                       sync.NewCond(&sync.Mutex{}),
+		metrics:                    metrics,
+		unfinishedWorkUpdatePeriod: updatePeriod,
+	}
+	go t.updateUnfinishedWorkLoop()
+	return t
+}
+
+const defaultUnfinishedWorkUpdatePeriod = 500 * time.Millisecond
+
 // Type is a work queue (see the package comment).
 type Type struct {
 	// queue defines the order in which we will work on items. Every
@@ -64,6 +82,9 @@ type Type struct {
 	shuttingDown bool
 
 	metrics queueMetrics
+
+	unfinishedWorkUpdatePeriod time.Duration
+	clock                      clock.Clock
 }
 
 type empty struct{}
@@ -170,3 +191,22 @@ func (q *Type) ShuttingDown() bool {
 
 	return q.shuttingDown
 }
+
+func (q *Type) updateUnfinishedWorkLoop() {
+	t := q.clock.NewTicker(q.unfinishedWorkUpdatePeriod)
+	defer t.Stop()
+	for range t.C() {
+		if !func() bool {
+			q.cond.L.Lock()
+			defer q.cond.L.Unlock()
+			if !q.shuttingDown {
+				q.metrics.updateUnfinishedWork()
+				return true
+			}
+			return false
+
+		}() {
+			return
+		}
+	}
+}

vendor/k8s.io/client-go/util/workqueue/rate_limitting_queue.go

@@ -20,10 +20,10 @@ package workqueue
 type RateLimitingInterface interface {
 	DelayingInterface
 
-	// AddRateLimited adds an item to the workqueue after the rate limiter says its ok
+	// AddRateLimited adds an item to the workqueue after the rate limiter says it's ok
 	AddRateLimited(item interface{})
 
-	// Forget indicates that an item is finished being retried.  Doesn't matter whether its for perm failing
+	// Forget indicates that an item is finished being retried.  Doesn't matter whether it's for perm failing
 	// or for success, we'll stop the rate limiter from tracking it.  This only clears the `rateLimiter`, you
 	// still have to call `Done` on the queue.
 	Forget(item interface{})
@@ -55,7 +55,7 @@ type rateLimitingType struct {
 	rateLimiter RateLimiter
 }
 
-// AddRateLimited AddAfter's the item based on the time when the rate limiter says its ok
+// AddRateLimited AddAfter's the item based on the time when the rate limiter says it's ok
 func (q *rateLimitingType) AddRateLimited(item interface{}) {
 	q.DelayingInterface.AddAfter(item, q.rateLimiter.When(item))
 }