upgrade to latest dependencies (#10861)

bumping knative.dev/networking 088986a...d5e05ad:
  > d5e05ad Update common github actions (# 357)
  > 94bfc01 upgrade to latest dependencies (# 356)
bumping knative.dev/caching 1212288...d1dfa64:
  > d1dfa64 Update common github actions (# 428)
  > daa996f upgrade to latest dependencies (# 427)
bumping knative.dev/pkg 84c98f3...9039dc1:
  > 9039dc1 moved release docs to github.com/knative/release (# 2040)
  > 07b5ddf add demoteFunc controller option (# 2033)
  > 8a8de5f Move IsKProbe to drainer, since it's the only place it's used (# 2038)
  > 5367a43 Fix potential deadlock when k8s client is used (# 2031)
  > b5bf07b adding retry event count metric for source (# 2016)
  > 17a36e7 Format markdown (# 2037)
  > 29be1c1 Add the release badge for all of the repos (# 2035)
  > e90ac15 Remove the system.Clock and it's mock in a different location (# 2034)
  > 8a9bf76 Add symmetric filter helped based on OwnerRefable. (# 2032)
  > 29092fe Format markdown (# 2030)
  > d733bb4 Add nightly badged to release tables (# 2029)
  > 7b5bcc3 Use the constant for UserAgent (# 2028)
  > 86a8236 Format markdown (# 2025)
  > 6c2f94a Unregister views to avoid slow oom issue during meter cleanup (# 2005)
  > 7689cce Update common github actions (# 2024)
  > f4650d8 Add releasability badges for each repo (# 2023)
  > 584933f Format markdown (# 2022)

Signed-off-by: Knative Automation <[email protected]>

go.mod

@@ -52,9 +52,9 @@ require (
 	k8s.io/gengo v0.0.0-20201214224949-b6c5ce23f027 // indirect
 	k8s.io/kube-openapi v0.0.0-20210113233702-8566a335510f
 	k8s.io/utils v0.0.0-20210111153108-fddb29f9d009 // indirect
-	knative.dev/caching v0.0.0-20210215030244-1212288570f0
+	knative.dev/caching v0.0.0-20210216192653-d1dfa6451cd1
 	knative.dev/hack v0.0.0-20210203173706-8368e1f6eacf
-	knative.dev/networking v0.0.0-20210215030235-088986a1c2a3
-	knative.dev/pkg v0.0.0-20210215165523-84c98f3c3e7a
+	knative.dev/networking v0.0.0-20210216193011-d5e05ad323f0
+	knative.dev/pkg v0.0.0-20210226182947-9039dc189ced
 	sigs.k8s.io/yaml v1.2.0
 )

go.sum

@@ -1282,16 +1282,16 @@ k8s.io/utils v0.0.0-20200729134348-d5654de09c73 h1:uJmqzgNWG7XyClnU/mLPBWwfKKF1K
 k8s.io/utils v0.0.0-20200729134348-d5654de09c73/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
 k8s.io/utils v0.0.0-20210111153108-fddb29f9d009 h1:0T5IaWHO3sJTEmCP6mUlBvMukxPKUQWqiI/YuiBNMiQ=
 k8s.io/utils v0.0.0-20210111153108-fddb29f9d009/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
-knative.dev/caching v0.0.0-20210215030244-1212288570f0 h1:gOZqiYCuEP0CzNFfeaqQmee7dPEk/mKIwl5Ss1lYxZQ=
-knative.dev/caching v0.0.0-20210215030244-1212288570f0/go.mod h1:rAPalJe9Lx3jHffJpackk5WjZYl3j2QvXUgw0GPllxQ=
+knative.dev/caching v0.0.0-20210216192653-d1dfa6451cd1 h1:0b3wT5a4/3djue61/5i3o1/H9TcL7Q7+YMM2MqZzOMw=
+knative.dev/caching v0.0.0-20210216192653-d1dfa6451cd1/go.mod h1:1UeUQ6zQ3vHtZRpfuAW/f5oXb11EBqICfJqIzOeOrqU=
 knative.dev/hack v0.0.0-20210203173706-8368e1f6eacf h1:u4cY4jr2LYvhoz/1HBWEPsMiLkm0HMdDTfmmw1RE8zE=
 knative.dev/hack v0.0.0-20210203173706-8368e1f6eacf/go.mod h1:PHt8x8yX5Z9pPquBEfIj0X66f8iWkWfR0S/sarACJrI=
-knative.dev/networking v0.0.0-20210215030235-088986a1c2a3 h1:viMEi8ob8FdeiIsiv0ww6eKgamS+YkTP3+u95qF4n/s=
-knative.dev/networking v0.0.0-20210215030235-088986a1c2a3/go.mod h1:pmAMQjMqQUxpK0UyjE71KljMs6rwDMVIAlvrZsU3I6Y=
-knative.dev/pkg v0.0.0-20210212203835-448ae657fb5f h1:pz+UDOTsCIClHXGM/SgCzkctLxgi3+P0C26x6Ujlqho=
-knative.dev/pkg v0.0.0-20210212203835-448ae657fb5f/go.mod h1:TJSdebQOWX5N2bszohOYVi0H1QtXbtlYLuMghAFBMhY=
+knative.dev/networking v0.0.0-20210216193011-d5e05ad323f0 h1:3TwevWoWJ/xlU1Bjzb3vtRRl1NfJWIJTkZb+1eNdW8k=
+knative.dev/networking v0.0.0-20210216193011-d5e05ad323f0/go.mod h1:Crdn87hxdFd3Jj6PIyrjzGnr8OGHX35k5xo9jlOrjjA=
 knative.dev/pkg v0.0.0-20210215165523-84c98f3c3e7a h1:Jb8iKzfqhqwYoK9xHulmFdoscUBPLlXmBQMb2grTa78=
 knative.dev/pkg v0.0.0-20210215165523-84c98f3c3e7a/go.mod h1:TJSdebQOWX5N2bszohOYVi0H1QtXbtlYLuMghAFBMhY=
+knative.dev/pkg v0.0.0-20210226182947-9039dc189ced h1:OCtTbXsJhiR35qCDxFj9Xc8sU3i87ePbc7YlHCt0al4=
+knative.dev/pkg v0.0.0-20210226182947-9039dc189ced/go.mod h1:TJSdebQOWX5N2bszohOYVi0H1QtXbtlYLuMghAFBMhY=
 modernc.org/cc v1.0.0/go.mod h1:1Sk4//wdnYJiUIxnW8ddKpaOJCF37yAdqYnkxUpaYxw=
 modernc.org/golex v1.0.0/go.mod h1:b/QX9oBD/LhixY6NDh+IdGv17hgB+51fET1i2kPSmvk=
 modernc.org/mathutil v1.0.0/go.mod h1:wU0vUrJsVWBZ4P6e7xtFJEhFSNsfRLJ8H458uRjg03k=

vendor/knative.dev/pkg/codegen/cmd/injection-gen/generators/reconciler_controller.go

@@ -271,6 +271,9 @@ func NewImpl(ctx {{.contextContext|raw}}, r Interface{{if .hasClass}}, classValu
 			rec.skipStatusUpdates = true
 		}
 		{{- end}}
+		if opts.DemoteFunc != nil {
+			rec.DemoteFunc = opts.DemoteFunc
+		}
 	}
 
 	rec.Recorder = createRecorder(ctx, agentName)

vendor/knative.dev/pkg/codegen/cmd/injection-gen/generators/reconciler_reconciler.go

@@ -363,6 +363,9 @@ func NewReconciler(ctx {{.contextContext|raw}}, logger *{{.zapSugaredLogger|raw}
 			rec.skipStatusUpdates = true
 		}
 		{{- end}}
+		if opts.DemoteFunc != nil {
+			rec.DemoteFunc = opts.DemoteFunc
+		}
 	}
 
 	return rec

vendor/knative.dev/pkg/controller/controller.go

@@ -152,6 +152,13 @@ func FilterControllerGK(gk schema.GroupKind) func(obj interface{}) bool {
 	}
 }
 
+// FilterController makes it simple to create FilterFunc's for use with
+// cache.FilteringResourceEventHandler that filter based on the
+// controlling resource.
+func FilterController(r kmeta.OwnerRefable) func(obj interface{}) bool {
+	return FilterControllerGK(r.GetGroupVersionKind().GroupKind())
+}
+
 // FilterWithName makes it simple to create FilterFunc's for use with
 // cache.FilteringResourceEventHandler that filter based on a name.
 func FilterWithName(name string) func(obj interface{}) bool {

vendor/knative.dev/pkg/controller/options.go

@@ -35,6 +35,9 @@ type Options struct {
 	// SkipStatusUpdates configures this reconciler to either do automated status
 	// updates (default) or skip them if this is set to true.
 	SkipStatusUpdates bool
+
+	// DemoteFunc configures the demote function this reconciler uses
+	DemoteFunc func(b reconciler.Bucket)
 }
 
 // OptionsFn is a callback method signature that accepts an Impl and returns

vendor/knative.dev/pkg/metrics/exporter.go

@@ -21,7 +21,6 @@ import (
 	"errors"
 	"fmt"
 	"strings"
-	"sync"
 
 	"go.opencensus.io/resource"
 	"go.opencensus.io/stats/view"
@@ -32,9 +31,14 @@ import (
 var (
 	curMetricsExporter view.Exporter
 	curMetricsConfig   *metricsConfig
-	metricsMux         sync.RWMutex
+	mWorker            *metricsWorker
 )
 
+func init() {
+	mWorker = newMetricsWorker()
+	go mWorker.start()
+}
+
 // SecretFetcher is a function (extracted from SecretNamespaceLister) for fetching
 // a specific Secret. This avoids requiring global or namespace list in controllers.
 type SecretFetcher func(string) (*corev1.Secret, error)
@@ -154,28 +158,14 @@ func UpdateExporter(ctx context.Context, ops ExporterOptions, logger *zap.Sugare
 
 	// Updating the metrics config and the metrics exporters needs to be atomic to
 	// avoid using an outdated metrics config with new exporters.
-	metricsMux.Lock()
-	defer metricsMux.Unlock()
-
-	if isNewExporterRequired(newConfig) {
-		logger.Info("Flushing the existing exporter before setting up the new exporter.")
-		flushGivenExporter(curMetricsExporter)
-		e, f, err := newMetricsExporter(newConfig, logger)
-		if err != nil {
-			logger.Errorw("Failed to update a new metrics exporter based on metric config", zap.Error(err), "config", newConfig)
-			return err
-		}
-		existingConfig := curMetricsConfig
-		curMetricsExporter = e
-		if err := setFactory(f); err != nil {
-			logger.Errorw("Failed to update metrics factory when loading metric config", zap.Error(err), "config", newConfig)
-			return err
-		}
-		logger.Infof("Successfully updated the metrics exporter; old config: %v; new config %v", existingConfig, newConfig)
+	updateCmd := &updateMetricsConfigWithExporter{
+		ctx:       ctx,
+		newConfig: newConfig,
+		done:      make(chan error),
 	}
-
-	setCurMetricsConfigUnlocked(newConfig)
-	return nil
+	mWorker.c <- updateCmd
+	err = <-updateCmd.done
+	return err
 }
 
 // isNewExporterRequired compares the non-nil newConfig against curMetricsConfig. When backend changes,
@@ -228,27 +218,35 @@ func newMetricsExporter(config *metricsConfig, logger *zap.SugaredLogger) (view.
 }
 
 func getCurMetricsExporter() view.Exporter {
-	metricsMux.RLock()
-	defer metricsMux.RUnlock()
-	return curMetricsExporter
+	readCmd := &readExporter{done: make(chan *view.Exporter)}
+	mWorker.c <- readCmd
+	e := <-readCmd.done
+	return *e
 }
 
 func setCurMetricsExporter(e view.Exporter) {
-	metricsMux.Lock()
-	defer metricsMux.Unlock()
-	curMetricsExporter = e
+	setCmd := &setExporter{
+		newExporter: &e,
+		done:        make(chan struct{}),
+	}
+	mWorker.c <- setCmd
+	<-setCmd.done
 }
 
 func getCurMetricsConfig() *metricsConfig {
-	metricsMux.RLock()
-	defer metricsMux.RUnlock()
-	return curMetricsConfig
+	readCmd := &readMetricsConfig{done: make(chan *metricsConfig)}
+	mWorker.c <- readCmd
+	cfg := <-readCmd.done
+	return cfg
 }
 
 func setCurMetricsConfig(c *metricsConfig) {
-	metricsMux.Lock()
-	defer metricsMux.Unlock()
-	setCurMetricsConfigUnlocked(c)
+	setCmd := &setMetricsConfig{
+		newConfig: c,
+		done:      make(chan struct{}),
+	}
+	mWorker.c <- setCmd
+	<-setCmd.done
 }
 
 func setCurMetricsConfigUnlocked(c *metricsConfig) {