Update cAdvisor dependency.

Brings with it:
- Lower logging
- Better event storage and management
- Support for container labels

Godeps/Godeps.json

@@ -19,11 +19,6 @@
 			"Comment": "null-12",
 			"Rev": "7dda39b2e7d5e265014674c5af696ba4186679e9"
 		},
-		{
-			"ImportPath": "code.google.com/p/go.exp/inotify",
-			"Comment": "null-75",
-			"Rev": "bd8df7009305d6ada223ea3c95b94c0f38bfa119"
-		},
 		{
 			"ImportPath": "code.google.com/p/google-api-go-client/compute/v1",
 			"Comment": "release-96",
@@ -206,83 +201,88 @@
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/api",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
+		},
+		{
+			"ImportPath": "github.com/google/cadvisor/collector",
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/container",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/events",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/fs",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/healthz",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/http",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/info/v1",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/info/v2",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/manager",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/metrics",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/pages",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/storage",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/summary",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/utils",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/validate",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/cadvisor/version",
-			"Comment": "0.12.0-21-g3166552",
-			"Rev": "3166552cc4481e48dc1002e000d7e4ae8d5b9850"
+			"Comment": "0.13.0-22-ge3aa15a",
+			"Rev": "e3aa15a3bbee5367532ac56aa55be41441c55356"
 		},
 		{
 			"ImportPath": "github.com/google/gofuzz",
@@ -429,6 +429,10 @@
 			"ImportPath": "golang.org/x/crypto/ssh",
 			"Rev": "c84e1f8e3a7e322d497cd16c0e8a13c7e127baf3"
 		},
+		{
+			"ImportPath": "golang.org/x/exp/inotify",
+			"Rev": "d00e13ec443927751b2bd49e97dea7bf3b6a6487"
+		},
 		{
 			"ImportPath": "golang.org/x/net/context",
 			"Rev": "cbcac7bb8415db9b6cb4d1ebab1dc9afbd688b97"

Godeps/_workspace/src/github.com/google/cadvisor/api/handler.go

@@ -199,28 +199,27 @@ func getEventRequest(r *http.Request) (*events.Request, bool, error) {
 			query.IncludeSubcontainers = newBool
 		}
 	}
-	if val, ok := urlMap["oom_events"]; ok {
+	eventTypes := map[string]info.EventType{
+		"oom_events":      info.EventOom,
+		"oom_kill_events": info.EventOomKill,
+		"creation_events": info.EventContainerCreation,
+		"deletion_events": info.EventContainerDeletion,
+	}
+	allEventTypes := false
+	if val, ok := urlMap["all_events"]; ok {
 		newBool, err := strconv.ParseBool(val[0])
 		if err == nil {
-			query.EventType[info.EventOom] = newBool
+			allEventTypes = newBool
 		}
 	}
-	if val, ok := urlMap["oom_kill_events"]; ok {
-		newBool, err := strconv.ParseBool(val[0])
-		if err == nil {
-			query.EventType[info.EventOomKill] = newBool
-		}
-	}
-	if val, ok := urlMap["creation_events"]; ok {
-		newBool, err := strconv.ParseBool(val[0])
-		if err == nil {
-			query.EventType[info.EventContainerCreation] = newBool
-		}
-	}
-	if val, ok := urlMap["deletion_events"]; ok {
-		newBool, err := strconv.ParseBool(val[0])
-		if err == nil {
-			query.EventType[info.EventContainerDeletion] = newBool
+	for opt, eventType := range eventTypes {
+		if allEventTypes {
+			query.EventType[eventType] = true
+		} else if val, ok := urlMap[opt]; ok {
+			newBool, err := strconv.ParseBool(val[0])
+			if err == nil {
+				query.EventType[eventType] = newBool
+			}
 		}
 	}
 	if val, ok := urlMap["max_events"]; ok {

Godeps/_workspace/src/github.com/google/cadvisor/collector/collector_manager.go

@@ -0,0 +1,83 @@
+// Copyright 2015 Google Inc. All Rights Reserved.
+//
+// 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 collector
+
+import (
+	"fmt"
+	"strings"
+	"time"
+)
+
+type collectorManager struct {
+	collectors []*collectorData
+}
+
+var _ CollectorManager = &collectorManager{}
+
+type collectorData struct {
+	collector          Collector
+	nextCollectionTime time.Time
+}
+
+// Returns a new CollectorManager that is thread-compatible.
+func NewCollectorManager() (CollectorManager, error) {
+	return &collectorManager{
+		collectors: []*collectorData{},
+	}, nil
+}
+
+func (cm *collectorManager) RegisterCollector(collector Collector) error {
+	cm.collectors = append(cm.collectors, &collectorData{
+		collector:          collector,
+		nextCollectionTime: time.Now(),
+	})
+	return nil
+}
+
+func (cm *collectorManager) Collect() (time.Time, error) {
+	var errors []error
+
+	// Collect from all collectors that are ready.
+	var next time.Time
+	for _, c := range cm.collectors {
+		if c.nextCollectionTime.Before(time.Now()) {
+			nextCollection, err := c.collector.Collect()
+			if err != nil {
+				errors = append(errors, err)
+			}
+			c.nextCollectionTime = nextCollection
+		}
+
+		// Keep track of the next collector that will be ready.
+		if next.IsZero() || next.After(c.nextCollectionTime) {
+			next = c.nextCollectionTime
+		}
+	}
+
+	return next, compileErrors(errors)
+}
+
+// Make an error slice into a single error.
+func compileErrors(errors []error) error {
+	if len(errors) == 0 {
+		return nil
+	}
+
+	res := make([]string, len(errors))
+	for i := range errors {
+		res[i] = fmt.Sprintf("Error %d: %v", i, errors[i].Error())
+	}
+	return fmt.Errorf("%s", strings.Join(res, ","))
+}

Godeps/_workspace/src/github.com/google/cadvisor/collector/collector_manager_test.go

@@ -0,0 +1,70 @@
+// Copyright 2015 Google Inc. All Rights Reserved.
+//
+// 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 collector
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+type fakeCollector struct {
+	nextCollectionTime time.Time
+	err                error
+	collectedFrom      int
+}
+
+func (fc *fakeCollector) Collect() (time.Time, error) {
+	fc.collectedFrom++
+	return fc.nextCollectionTime, fc.err
+}
+
+func (fc *fakeCollector) Name() string {
+	return "fake-collector"
+}
+
+func TestCollect(t *testing.T) {
+	cm := &collectorManager{}
+
+	firstTime := time.Now().Add(-time.Hour)
+	secondTime := time.Now().Add(time.Hour)
+	f1 := &fakeCollector{
+		nextCollectionTime: firstTime,
+	}
+	f2 := &fakeCollector{
+		nextCollectionTime: secondTime,
+	}
+
+	assert := assert.New(t)
+	assert.NoError(cm.RegisterCollector(f1))
+	assert.NoError(cm.RegisterCollector(f2))
+
+	// First collection, everyone gets collected from.
+	nextTime, err := cm.Collect()
+	assert.Equal(firstTime, nextTime)
+	assert.NoError(err)
+	assert.Equal(1, f1.collectedFrom)
+	assert.Equal(1, f2.collectedFrom)
+
+	f1.nextCollectionTime = time.Now().Add(2 * time.Hour)
+
+	// Second collection, only the one that is ready gets collected from.
+	nextTime, err = cm.Collect()
+	assert.Equal(secondTime, nextTime)
+	assert.NoError(err)
+	assert.Equal(2, f1.collectedFrom)
+	assert.Equal(1, f2.collectedFrom)
+}

Godeps/_workspace/src/github.com/google/cadvisor/collector/fakes.go

@@ -0,0 +1,31 @@
+// Copyright 2015 Google Inc. All Rights Reserved.
+//
+// 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 collector
+
+import (
+	"time"
+)
+
+type FakeCollectorManager struct {
+}
+
+func (fkm *FakeCollectorManager) RegisterCollector(collector Collector) error {
+	return nil
+}
+
+func (fkm *FakeCollectorManager) Collect() (time.Time, error) {
+	var zero time.Time
+	return zero, nil
+}

Godeps/_workspace/src/github.com/google/cadvisor/collector/types.go

@@ -0,0 +1,45 @@
+// Copyright 2015 Google Inc. All Rights Reserved.
+//
+// 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 collector
+
+import (
+	"time"
+)
+
+// TODO(vmarmol): Export to a custom metrics type when that is available.
+
+// Metric collector.
+type Collector interface {
+	// Collect metrics from this collector.
+	// Returns the next time this collector should be collected from.
+	// Next collection time is always returned, even when an error occurs.
+	// A collection time of zero means no more collection.
+	Collect() (time.Time, error)
+
+	// Name of this collector.
+	Name() string
+}
+
+// Manages and runs collectors.
+type CollectorManager interface {
+	// Register a collector.
+	RegisterCollector(collector Collector) error
+
+	// Collect from collectors that are ready and return the next time
+	// at which a collector will be ready to collect from.
+	// Next collection time is always returned, even when an error occurs.
+	// A collection time of zero means no more collection.
+	Collect() (time.Time, error)
+}

Godeps/_workspace/src/github.com/google/cadvisor/container/docker/factory.go

@@ -134,17 +134,19 @@ func FullContainerName(dockerId string) string {
 }
 
 // Docker handles all containers under /docker
-func (self *dockerFactory) CanHandle(name string) (bool, error) {
+func (self *dockerFactory) CanHandleAndAccept(name string) (bool, bool, error) {
+	// docker factory accepts all containers it can handle.
+	canAccept := true
 	// Check if the container is known to docker and it is active.
 	id := ContainerNameToDockerId(name)
 
 	// We assume that if Inspect fails then the container is not known to docker.
 	ctnr, err := self.client.InspectContainer(id)
 	if err != nil || !ctnr.State.Running {
-		return false, fmt.Errorf("error inspecting container: %v", err)
+		return false, canAccept, fmt.Errorf("error inspecting container: %v", err)
 	}
 
-	return true, nil
+	return true, canAccept, nil
 }
 
 func parseDockerVersion(full_version_string string) ([]int, error) {

Godeps/_workspace/src/github.com/google/cadvisor/container/docker/handler.go

@@ -68,6 +68,9 @@ type dockerContainerHandler struct {
 
 	// Time at which this container was created.
 	creationTime time.Time
+
+	// Metadata labels associated with the container.
+	labels map[string]string
 }
 
 func newDockerContainerHandler(
@@ -115,6 +118,7 @@ func newDockerContainerHandler(
 	// Add the name and bare ID as aliases of the container.
 	handler.aliases = append(handler.aliases, strings.TrimPrefix(ctnr.Name, "/"))
 	handler.aliases = append(handler.aliases, id)
+	handler.labels = ctnr.Config.Labels
 
 	return handler, nil
 }
@@ -184,6 +188,7 @@ func (self *dockerContainerHandler) GetSpec() (info.ContainerSpec, error) {
 	if self.usesAufsDriver {
 		spec.HasFilesystem = true
 	}
+	spec.Labels = self.labels
 
 	return spec, err
 }

Godeps/_workspace/src/github.com/google/cadvisor/container/factory.go

@@ -22,11 +22,11 @@ import (
 )
 
 type ContainerHandlerFactory interface {
-	// Create a new ContainerHandler using this factory. CanHandle() must have returned true.
-	NewContainerHandler(name string) (ContainerHandler, error)
+	// Create a new ContainerHandler using this factory. CanHandleAndAccept() must have returned true.
+	NewContainerHandler(name string) (c ContainerHandler, err error)
 
-	// Returns whether this factory can handle the specified container.
-	CanHandle(name string) (bool, error)
+	// Returns whether this factory can handle and accept the specified container.
+	CanHandleAndAccept(name string) (handle bool, accept bool, err error)
 
 	// Name of the factory.
 	String() string
@@ -57,25 +57,30 @@ func HasFactories() bool {
 }
 
 // Create a new ContainerHandler for the specified container.
-func NewContainerHandler(name string) (ContainerHandler, error) {
+func NewContainerHandler(name string) (ContainerHandler, bool, error) {
 	factoriesLock.RLock()
 	defer factoriesLock.RUnlock()
 
 	// Create the ContainerHandler with the first factory that supports it.
 	for _, factory := range factories {
-		canHandle, err := factory.CanHandle(name)
+		canHandle, canAccept, err := factory.CanHandleAndAccept(name)
 		if err != nil {
-			glog.V(4).Infof("Error trying to work out if we can hande %s: %v", name, err)
+			glog.V(4).Infof("Error trying to work out if we can handle %s: %v", name, err)
 		}
 		if canHandle {
+			if !canAccept {
+				glog.V(3).Infof("Factory %q can handle container %q, but ignoring.", factory, name)
+				return nil, false, nil
+			}
 			glog.V(3).Infof("Using factory %q for container %q", factory, name)
-			return factory.NewContainerHandler(name)
+			handle, err := factory.NewContainerHandler(name)
+			return handle, canAccept, err
 		} else {
 			glog.V(4).Infof("Factory %q was unable to handle container %q", factory, name)
 		}
 	}
 
-	return nil, fmt.Errorf("no known factory can handle creation of container")
+	return nil, false, fmt.Errorf("no known factory can handle creation of container")
 }
 
 // Clear the known factories.

Godeps/_workspace/src/github.com/google/cadvisor/container/factory_test.go

@@ -24,14 +24,15 @@ type mockContainerHandlerFactory struct {
 	mock.Mock
 	Name           string
 	CanHandleValue bool
+	CanAcceptValue bool
 }
 
 func (self *mockContainerHandlerFactory) String() string {
 	return self.Name
 }
 
-func (self *mockContainerHandlerFactory) CanHandle(name string) (bool, error) {
-	return self.CanHandleValue, nil
+func (self *mockContainerHandlerFactory) CanHandleAndAccept(name string) (bool, bool, error) {
+	return self.CanHandleValue, self.CanAcceptValue, nil
 }
 
 func (self *mockContainerHandlerFactory) NewContainerHandler(name string) (ContainerHandler, error) {
@@ -50,6 +51,7 @@ func TestNewContainerHandler_FirstMatches(t *testing.T) {
 	allwaysYes := &mockContainerHandlerFactory{
 		Name:           "yes",
 		CanHandleValue: true,
+		CanAcceptValue: true,
 	}
 	RegisterContainerHandlerFactory(allwaysYes)
 
@@ -60,7 +62,7 @@ func TestNewContainerHandler_FirstMatches(t *testing.T) {
 	}
 	allwaysYes.On("NewContainerHandler", testContainerName).Return(mockContainer, nil)
 
-	cont, err := NewContainerHandler(testContainerName)
+	cont, _, err := NewContainerHandler(testContainerName)
 	if err != nil {
 		t.Error(err)
 	}
@@ -76,11 +78,13 @@ func TestNewContainerHandler_SecondMatches(t *testing.T) {
 	allwaysNo := &mockContainerHandlerFactory{
 		Name:           "no",
 		CanHandleValue: false,
+		CanAcceptValue: true,
 	}
 	RegisterContainerHandlerFactory(allwaysNo)
 	allwaysYes := &mockContainerHandlerFactory{
 		Name:           "yes",
 		CanHandleValue: true,
+		CanAcceptValue: true,
 	}
 	RegisterContainerHandlerFactory(allwaysYes)
 
@@ -91,7 +95,7 @@ func TestNewContainerHandler_SecondMatches(t *testing.T) {
 	}
 	allwaysYes.On("NewContainerHandler", testContainerName).Return(mockContainer, nil)
 
-	cont, err := NewContainerHandler(testContainerName)
+	cont, _, err := NewContainerHandler(testContainerName)
 	if err != nil {
 		t.Error(err)
 	}
@@ -107,16 +111,44 @@ func TestNewContainerHandler_NoneMatch(t *testing.T) {
 	allwaysNo1 := &mockContainerHandlerFactory{
 		Name:           "no",
 		CanHandleValue: false,
+		CanAcceptValue: true,
 	}
 	RegisterContainerHandlerFactory(allwaysNo1)
 	allwaysNo2 := &mockContainerHandlerFactory{
 		Name:           "no",
 		CanHandleValue: false,
+		CanAcceptValue: true,
 	}
 	RegisterContainerHandlerFactory(allwaysNo2)
 
-	_, err := NewContainerHandler(testContainerName)
+	_, _, err := NewContainerHandler(testContainerName)
 	if err == nil {
 		t.Error("Expected NewContainerHandler to fail")
 	}
 }
+
+func TestNewContainerHandler_Accept(t *testing.T) {
+	ClearContainerHandlerFactories()
+
+	// Register handler that can handle the container, but can't accept it.
+	cannotHandle := &mockContainerHandlerFactory{
+		Name:           "no",
+		CanHandleValue: false,
+		CanAcceptValue: true,
+	}
+	RegisterContainerHandlerFactory(cannotHandle)
+	cannotAccept := &mockContainerHandlerFactory{
+		Name:           "no",
+		CanHandleValue: true,
+		CanAcceptValue: false,
+	}
+	RegisterContainerHandlerFactory(cannotAccept)
+
+	_, accept, err := NewContainerHandler(testContainerName)
+	if err != nil {
+		t.Error("Expected NewContainerHandler to succeed")
+	}
+	if accept == true {
+		t.Error("Expected NewContainerHandler to ignore the container.")
+	}
+}

Godeps/_workspace/src/github.com/google/cadvisor/container/libcontainer/helpers.go

@@ -100,14 +100,34 @@ func DockerStateDir(dockerRoot string) string {
 	return path.Join(dockerRoot, "containers")
 }
 
+func DiskStatsCopy0(major, minor uint64) *info.PerDiskStats {
+	disk := info.PerDiskStats{
+		Major: major,
+		Minor: minor,
+	}
+	disk.Stats = make(map[string]uint64)
+	return &disk
+}
+
+type DiskKey struct {
+	Major uint64
+	Minor uint64
+}
+
+func DiskStatsCopy1(disk_stat map[DiskKey]*info.PerDiskStats) []info.PerDiskStats {
+	i := 0
+	stat := make([]info.PerDiskStats, len(disk_stat))
+	for _, disk := range disk_stat {
+		stat[i] = *disk
+		i++
+	}
+	return stat
+}
+
 func DiskStatsCopy(blkio_stats []cgroups.BlkioStatEntry) (stat []info.PerDiskStats) {
 	if len(blkio_stats) == 0 {
 		return
 	}
-	type DiskKey struct {
-		Major uint64
-		Minor uint64
-	}
 	disk_stat := make(map[DiskKey]*info.PerDiskStats)
 	for i := range blkio_stats {
 		major := blkio_stats[i].Major
@@ -118,12 +138,7 @@ func DiskStatsCopy(blkio_stats []cgroups.BlkioStatEntry) (stat []info.PerDiskSta
 		}
 		diskp, ok := disk_stat[disk_key]
 		if !ok {
-			disk := info.PerDiskStats{
-				Major: major,
-				Minor: minor,
-			}
-			disk.Stats = make(map[string]uint64)
-			diskp = &disk
+			diskp = DiskStatsCopy0(major, minor)
 			disk_stat[disk_key] = diskp
 		}
 		op := blkio_stats[i].Op
@@ -132,68 +147,76 @@ func DiskStatsCopy(blkio_stats []cgroups.BlkioStatEntry) (stat []info.PerDiskSta
 		}
 		diskp.Stats[op] = blkio_stats[i].Value
 	}
-	i := 0
-	stat = make([]info.PerDiskStats, len(disk_stat))
-	for _, disk := range disk_stat {
-		stat[i] = *disk
-		i++
-	}
-	return
+	return DiskStatsCopy1(disk_stat)
 }
 
 // Convert libcontainer stats to info.ContainerStats.
+func toContainerStats0(s *cgroups.Stats, ret *info.ContainerStats) {
+	ret.Cpu.Usage.User = s.CpuStats.CpuUsage.UsageInUsermode
+	ret.Cpu.Usage.System = s.CpuStats.CpuUsage.UsageInKernelmode
+	n := len(s.CpuStats.CpuUsage.PercpuUsage)
+	ret.Cpu.Usage.PerCpu = make([]uint64, n)
+
+	ret.Cpu.Usage.Total = 0
+	for i := 0; i < n; i++ {
+		ret.Cpu.Usage.PerCpu[i] = s.CpuStats.CpuUsage.PercpuUsage[i]
+		ret.Cpu.Usage.Total += s.CpuStats.CpuUsage.PercpuUsage[i]
+	}
+}
+
+func toContainerStats1(s *cgroups.Stats, ret *info.ContainerStats) {
+	ret.DiskIo.IoServiceBytes = DiskStatsCopy(s.BlkioStats.IoServiceBytesRecursive)
+	ret.DiskIo.IoServiced = DiskStatsCopy(s.BlkioStats.IoServicedRecursive)
+	ret.DiskIo.IoQueued = DiskStatsCopy(s.BlkioStats.IoQueuedRecursive)
+	ret.DiskIo.Sectors = DiskStatsCopy(s.BlkioStats.SectorsRecursive)
+	ret.DiskIo.IoServiceTime = DiskStatsCopy(s.BlkioStats.IoServiceTimeRecursive)
+	ret.DiskIo.IoWaitTime = DiskStatsCopy(s.BlkioStats.IoWaitTimeRecursive)
+	ret.DiskIo.IoMerged = DiskStatsCopy(s.BlkioStats.IoMergedRecursive)
+	ret.DiskIo.IoTime = DiskStatsCopy(s.BlkioStats.IoTimeRecursive)
+}
+
+func toContainerStats2(s *cgroups.Stats, ret *info.ContainerStats) {
+	ret.Memory.Usage = s.MemoryStats.Usage
+	if v, ok := s.MemoryStats.Stats["pgfault"]; ok {
+		ret.Memory.ContainerData.Pgfault = v
+		ret.Memory.HierarchicalData.Pgfault = v
+	}
+	if v, ok := s.MemoryStats.Stats["pgmajfault"]; ok {
+		ret.Memory.ContainerData.Pgmajfault = v
+		ret.Memory.HierarchicalData.Pgmajfault = v
+	}
+	if v, ok := s.MemoryStats.Stats["total_inactive_anon"]; ok {
+		ret.Memory.WorkingSet = ret.Memory.Usage - v
+		if v, ok := s.MemoryStats.Stats["total_active_file"]; ok {
+			ret.Memory.WorkingSet -= v
+		}
+	}
+}
+
+func toContainerStats3(libcontainerStats *libcontainer.Stats, ret *info.ContainerStats) {
+	// TODO(vmarmol): Handle multiple interfaces.
+	ret.Network.RxBytes = libcontainerStats.Interfaces[0].RxBytes
+	ret.Network.RxPackets = libcontainerStats.Interfaces[0].RxPackets
+	ret.Network.RxErrors = libcontainerStats.Interfaces[0].RxErrors
+	ret.Network.RxDropped = libcontainerStats.Interfaces[0].RxDropped
+	ret.Network.TxBytes = libcontainerStats.Interfaces[0].TxBytes
+	ret.Network.TxPackets = libcontainerStats.Interfaces[0].TxPackets
+	ret.Network.TxErrors = libcontainerStats.Interfaces[0].TxErrors
+	ret.Network.TxDropped = libcontainerStats.Interfaces[0].TxDropped
+}
+
 func toContainerStats(libcontainerStats *libcontainer.Stats) *info.ContainerStats {
 	s := libcontainerStats.CgroupStats
 	ret := new(info.ContainerStats)
 	ret.Timestamp = time.Now()
 
 	if s != nil {
-		ret.Cpu.Usage.User = s.CpuStats.CpuUsage.UsageInUsermode
-		ret.Cpu.Usage.System = s.CpuStats.CpuUsage.UsageInKernelmode
-		n := len(s.CpuStats.CpuUsage.PercpuUsage)
-		ret.Cpu.Usage.PerCpu = make([]uint64, n)
-
-		ret.Cpu.Usage.Total = 0
-		for i := 0; i < n; i++ {
-			ret.Cpu.Usage.PerCpu[i] = s.CpuStats.CpuUsage.PercpuUsage[i]
-			ret.Cpu.Usage.Total += s.CpuStats.CpuUsage.PercpuUsage[i]
-		}
-
-		ret.DiskIo.IoServiceBytes = DiskStatsCopy(s.BlkioStats.IoServiceBytesRecursive)
-		ret.DiskIo.IoServiced = DiskStatsCopy(s.BlkioStats.IoServicedRecursive)
-		ret.DiskIo.IoQueued = DiskStatsCopy(s.BlkioStats.IoQueuedRecursive)
-		ret.DiskIo.Sectors = DiskStatsCopy(s.BlkioStats.SectorsRecursive)
-		ret.DiskIo.IoServiceTime = DiskStatsCopy(s.BlkioStats.IoServiceTimeRecursive)
-		ret.DiskIo.IoWaitTime = DiskStatsCopy(s.BlkioStats.IoWaitTimeRecursive)
-		ret.DiskIo.IoMerged = DiskStatsCopy(s.BlkioStats.IoMergedRecursive)
-		ret.DiskIo.IoTime = DiskStatsCopy(s.BlkioStats.IoTimeRecursive)
-
-		ret.Memory.Usage = s.MemoryStats.Usage
-		if v, ok := s.MemoryStats.Stats["pgfault"]; ok {
-			ret.Memory.ContainerData.Pgfault = v
-			ret.Memory.HierarchicalData.Pgfault = v
-		}
-		if v, ok := s.MemoryStats.Stats["pgmajfault"]; ok {
-			ret.Memory.ContainerData.Pgmajfault = v
-			ret.Memory.HierarchicalData.Pgmajfault = v
-		}
-		if v, ok := s.MemoryStats.Stats["total_inactive_anon"]; ok {
-			ret.Memory.WorkingSet = ret.Memory.Usage - v
-			if v, ok := s.MemoryStats.Stats["total_active_file"]; ok {
-				ret.Memory.WorkingSet -= v
-			}
-		}
+		toContainerStats0(s, ret)
+		toContainerStats1(s, ret)
+		toContainerStats2(s, ret)
 	}
 	if len(libcontainerStats.Interfaces) > 0 {
-		// TODO(vmarmol): Handle multiple interfaces.
-		ret.Network.RxBytes = libcontainerStats.Interfaces[0].RxBytes
-		ret.Network.RxPackets = libcontainerStats.Interfaces[0].RxPackets
-		ret.Network.RxErrors = libcontainerStats.Interfaces[0].RxErrors
-		ret.Network.RxDropped = libcontainerStats.Interfaces[0].RxDropped
-		ret.Network.TxBytes = libcontainerStats.Interfaces[0].TxBytes
-		ret.Network.TxPackets = libcontainerStats.Interfaces[0].TxPackets
-		ret.Network.TxErrors = libcontainerStats.Interfaces[0].TxErrors
-		ret.Network.TxDropped = libcontainerStats.Interfaces[0].TxDropped
+		toContainerStats3(libcontainerStats, ret)
 	}
 	return ret
 }

Godeps/_workspace/src/github.com/google/cadvisor/container/raw/factory.go

@@ -15,6 +15,7 @@
 package raw
 
 import (
+	"flag"
 	"fmt"
 
 	"github.com/golang/glog"
@@ -24,6 +25,8 @@ import (
 	info "github.com/google/cadvisor/info/v1"
 )
 
+var dockerOnly = flag.Bool("docker_only", false, "Only report docker containers in addition to root stats")
+
 type rawFactory struct {
 	// Factory for machine information.
 	machineInfoFactory info.MachineInfoFactory
@@ -43,9 +46,10 @@ func (self *rawFactory) NewContainerHandler(name string) (container.ContainerHan
 	return newRawContainerHandler(name, self.cgroupSubsystems, self.machineInfoFactory, self.fsInfo)
 }
 
-// The raw factory can handle any container.
-func (self *rawFactory) CanHandle(name string) (bool, error) {
-	return true, nil
+// The raw factory can handle any container. If --docker_only is set to false, non-docker containers are ignored.
+func (self *rawFactory) CanHandleAndAccept(name string) (bool, bool, error) {
+	accept := name == "/" || !*dockerOnly
+	return true, accept, nil
 }
 
 func Register(machineInfoFactory info.MachineInfoFactory, fsInfo fs.FsInfo) error {

Godeps/_workspace/src/github.com/google/cadvisor/container/raw/handler.go

@@ -24,7 +24,6 @@ import (
 	"strings"
 	"time"
 
-	"code.google.com/p/go.exp/inotify"
 	"github.com/docker/libcontainer/cgroups"
 	cgroup_fs "github.com/docker/libcontainer/cgroups/fs"
 	"github.com/docker/libcontainer/configs"
@@ -34,6 +33,7 @@ import (
 	"github.com/google/cadvisor/fs"
 	info "github.com/google/cadvisor/info/v1"
 	"github.com/google/cadvisor/utils"
+	"golang.org/x/exp/inotify"
 )
 
 type rawContainerHandler struct {

Godeps/_workspace/src/github.com/google/cadvisor/events/handler.go

@@ -23,20 +23,21 @@ import (
 
 	"github.com/golang/glog"
 	info "github.com/google/cadvisor/info/v1"
+	"github.com/google/cadvisor/utils"
 )
 
-type EventSlice []*info.Event
+type byTimestamp []*info.Event
 
 // functions necessary to implement the sort interface on the Events struct
-func (e EventSlice) Len() int {
+func (e byTimestamp) Len() int {
 	return len(e)
 }
 
-func (e EventSlice) Swap(i, j int) {
+func (e byTimestamp) Swap(i, j int) {
 	e[i], e[j] = e[j], e[i]
 }
 
-func (e EventSlice) Less(i, j int) bool {
+func (e byTimestamp) Less(i, j int) bool {
 	return e[i].Timestamp.Before(e[j].Timestamp)
 }
 
@@ -79,7 +80,7 @@ type EventManager interface {
 	// On successful registration, an EventChannel object is returned.
 	WatchEvents(request *Request) (*EventChannel, error)
 	// GetEvents() returns all detected events based on the filters specified in request.
-	GetEvents(request *Request) (EventSlice, error)
+	GetEvents(request *Request) ([]*info.Event, error)
 	// AddEvent allows the caller to add an event to an EventManager
 	// object
 	AddEvent(e *info.Event) error
@@ -89,17 +90,18 @@ type EventManager interface {
 
 // events provides an implementation for the EventManager interface.
 type events struct {
-	// eventList holds the complete set of events found over an
-	// EventManager events instantiation.
-	eventList EventSlice
+	// eventStore holds the events by event type.
+	eventStore map[info.EventType]*utils.TimedStore
 	// map of registered watchers keyed by watch id.
 	watchers map[int]*watch
-	// lock guarding the eventList.
+	// lock guarding the eventStore.
 	eventsLock sync.RWMutex
 	// lock guarding watchers.
 	watcherLock sync.RWMutex
 	// last allocated watch id.
 	lastId int
+	// Event storage policy.
+	storagePolicy StoragePolicy
 }
 
 // initialized by a call to WatchEvents(), a watch struct will then be added
@@ -125,11 +127,34 @@ func NewEventChannel(watchId int) *EventChannel {
 	}
 }
 
-// returns a pointer to an initialized Events object
-func NewEventManager() *events {
+// Policy specifying how many events to store.
+// MaxAge is the max duration for which to keep events.
+// MaxNumEvents is the max number of events to keep (-1 for no limit).
+type StoragePolicy struct {
+	// Defaults limites, used if a per-event limit is not set.
+	DefaultMaxAge       time.Duration
+	DefaultMaxNumEvents int
+
+	// Per-event type limits.
+	PerTypeMaxAge       map[info.EventType]time.Duration
+	PerTypeMaxNumEvents map[info.EventType]int
+}
+
+func DefaultStoragePolicy() StoragePolicy {
+	return StoragePolicy{
+		DefaultMaxAge:       24 * time.Hour,
+		DefaultMaxNumEvents: 100000,
+		PerTypeMaxAge:       make(map[info.EventType]time.Duration),
+		PerTypeMaxNumEvents: make(map[info.EventType]int),
+	}
+}
+
+// returns a pointer to an initialized Events object.
+func NewEventManager(storagePolicy StoragePolicy) *events {
 	return &events{
-		eventList: make(EventSlice, 0),
-		watchers:  make(map[int]*watch),
+		eventStore:    make(map[info.EventType]*utils.TimedStore, 0),
+		watchers:      make(map[int]*watch),
+		storagePolicy: storagePolicy,
 	}
 }
 
@@ -159,13 +184,13 @@ func (self *EventChannel) GetWatchId() int {
 }
 
 // sorts and returns up to the last MaxEventsReturned chronological elements
-func getMaxEventsReturned(request *Request, eSlice EventSlice) EventSlice {
-	sort.Sort(eSlice)
+func getMaxEventsReturned(request *Request, eSlice []*info.Event) []*info.Event {
+	sort.Sort(byTimestamp(eSlice))
 	n := request.MaxEventsReturned
-	if n >= eSlice.Len() || n <= 0 {
+	if n >= len(eSlice) || n <= 0 {
 		return eSlice
 	}
-	return eSlice[eSlice.Len()-n:]
+	return eSlice[len(eSlice)-n:]
 }
 
 // If the request wants all subcontainers, this returns if the request's
@@ -194,7 +219,7 @@ func checkIfEventSatisfiesRequest(request *Request, event *info.Event) bool {
 			return false
 		}
 	}
-	if request.EventType[event.EventType] != true {
+	if !request.EventType[event.EventType] {
 		return false
 	}
 	if request.ContainerName != "" {
@@ -203,18 +228,30 @@ func checkIfEventSatisfiesRequest(request *Request, event *info.Event) bool {
 	return true
 }
 
-// method of Events object that screens Event objects found in the eventList
+// method of Events object that screens Event objects found in the eventStore
 // attribute and if they fit the parameters passed by the Request object,
 // adds it to a slice of *Event objects that is returned. If both MaxEventsReturned
 // and StartTime/EndTime are specified in the request object, then only
 // up to the most recent MaxEventsReturned events in that time range are returned.
-func (self *events) GetEvents(request *Request) (EventSlice, error) {
-	returnEventList := EventSlice{}
+func (self *events) GetEvents(request *Request) ([]*info.Event, error) {
+	returnEventList := []*info.Event{}
 	self.eventsLock.RLock()
 	defer self.eventsLock.RUnlock()
-	for _, e := range self.eventList {
-		if checkIfEventSatisfiesRequest(request, e) {
-			returnEventList = append(returnEventList, e)
+	for eventType, fetch := range request.EventType {
+		if !fetch {
+			continue
+		}
+		evs, ok := self.eventStore[eventType]
+		if !ok {
+			continue
+		}
+
+		res := evs.InTimeRange(request.StartTime, request.EndTime, request.MaxEventsReturned)
+		for _, in := range res {
+			e := in.(*info.Event)
+			if checkIfEventSatisfiesRequest(request, e) {
+				returnEventList = append(returnEventList, e)
+			}
 		}
 	}
 	returnEventList = getMaxEventsReturned(request, returnEventList)
@@ -241,11 +278,23 @@ func (self *events) WatchEvents(request *Request) (*EventChannel, error) {
 	return returnEventChannel, nil
 }
 
-// helper function to update the event manager's eventList
-func (self *events) updateEventList(e *info.Event) {
+// helper function to update the event manager's eventStore
+func (self *events) updateEventStore(e *info.Event) {
 	self.eventsLock.Lock()
 	defer self.eventsLock.Unlock()
-	self.eventList = append(self.eventList, e)
+	if _, ok := self.eventStore[e.EventType]; !ok {
+		maxAge := self.storagePolicy.DefaultMaxAge
+		maxNumEvents := self.storagePolicy.DefaultMaxNumEvents
+		if age, ok := self.storagePolicy.PerTypeMaxAge[e.EventType]; ok {
+			maxAge = age
+		}
+		if numEvents, ok := self.storagePolicy.PerTypeMaxNumEvents[e.EventType]; ok {
+			maxNumEvents = numEvents
+		}
+
+		self.eventStore[e.EventType] = utils.NewTimedStore(maxAge, maxNumEvents)
+	}
+	self.eventStore[e.EventType].Add(e.Timestamp, e)
 }
 
 func (self *events) findValidWatchers(e *info.Event) []*watch {
@@ -260,10 +309,10 @@ func (self *events) findValidWatchers(e *info.Event) []*watch {
 }
 
 // method of Events object that adds the argument Event object to the
-// eventList. It also feeds the event to a set of watch channels
+// eventStore. It also feeds the event to a set of watch channels
 // held by the manager if it satisfies the request keys of the channels
 func (self *events) AddEvent(e *info.Event) error {
-	self.updateEventList(e)
+	self.updateEventStore(e)
 	self.watcherLock.RLock()
 	defer self.watcherLock.RUnlock()
 	watchesToSend := self.findValidWatchers(e)

Godeps/_workspace/src/github.com/google/cadvisor/events/handler_test.go

@@ -47,7 +47,7 @@ func initializeScenario(t *testing.T) (*events, *Request, *info.Event, *info.Eve
 	fakeEvent := makeEvent(createOldTime(t), "/")
 	fakeEvent2 := makeEvent(time.Now(), "/")
 
-	return NewEventManager(), NewRequest(), fakeEvent, fakeEvent2
+	return NewEventManager(DefaultStoragePolicy()), NewRequest(), fakeEvent, fakeEvent2
 }
 
 func checkNumberOfEvents(t *testing.T, numEventsExpected int, numEventsReceived int) {
@@ -150,8 +150,8 @@ func TestAddEventAddsEventsToEventManager(t *testing.T) {
 
 	myEventHolder.AddEvent(fakeEvent)
 
-	checkNumberOfEvents(t, 1, myEventHolder.eventList.Len())
-	ensureProperEventReturned(t, fakeEvent, myEventHolder.eventList[0])
+	checkNumberOfEvents(t, 1, len(myEventHolder.eventStore))
+	ensureProperEventReturned(t, fakeEvent, myEventHolder.eventStore[info.EventOom].Get(0).(*info.Event))
 }
 
 func TestGetEventsForOneEvent(t *testing.T) {
@@ -164,7 +164,7 @@ func TestGetEventsForOneEvent(t *testing.T) {
 
 	receivedEvents, err := myEventHolder.GetEvents(myRequest)
 	assert.Nil(t, err)
-	checkNumberOfEvents(t, 1, receivedEvents.Len())
+	checkNumberOfEvents(t, 1, len(receivedEvents))
 	ensureProperEventReturned(t, fakeEvent2, receivedEvents[0])
 }
 
@@ -180,7 +180,7 @@ func TestGetEventsForTimePeriod(t *testing.T) {
 	receivedEvents, err := myEventHolder.GetEvents(myRequest)
 	assert.Nil(t, err)
 
-	checkNumberOfEvents(t, 1, receivedEvents.Len())
+	checkNumberOfEvents(t, 1, len(receivedEvents))
 	ensureProperEventReturned(t, fakeEvent, receivedEvents[0])
 }
 
@@ -192,5 +192,5 @@ func TestGetEventsForNoTypeRequested(t *testing.T) {
 
 	receivedEvents, err := myEventHolder.GetEvents(myRequest)
 	assert.Nil(t, err)
-	checkNumberOfEvents(t, 0, receivedEvents.Len())
+	checkNumberOfEvents(t, 0, len(receivedEvents))
 }

Godeps/_workspace/src/github.com/google/cadvisor/info/v1/container.go

@@ -43,6 +43,9 @@ type ContainerSpec struct {
 	// Time at which the container was created.
 	CreationTime time.Time `json:"creation_time,omitempty"`
 
+	// Metadata labels associated with this container.
+	Labels map[string]string `json:"labels,omitempty"`
+
 	HasCpu bool    `json:"has_cpu"`
 	Cpu    CpuSpec `json:"cpu,omitempty"`
 
@@ -505,19 +508,10 @@ const (
 
 // Extra information about an event. Only one type will be set.
 type EventData struct {
-	// Information about a container creation event.
-	Created *CreatedEventData `json:"created,omitempty"`
-
 	// Information about an OOM kill event.
 	OomKill *OomKillEventData `json:"oom,omitempty"`
 }
 
-// Information related to a container creation event.
-type CreatedEventData struct {
-	// Spec of the container at creation.
-	Spec ContainerSpec `json:"spec"`
-}
-
 // Information related to an OOM kill instance
 type OomKillEventData struct {
 	// process id of the killed process

Godeps/_workspace/src/github.com/google/cadvisor/info/v2/container.go

@@ -64,6 +64,9 @@ type ContainerSpec struct {
 	// An example of a namespace is "docker" for Docker containers.
 	Namespace string `json:"namespace,omitempty"`
 
+	// Metadata labels associated with this container.
+	Labels map[string]string `json:"labels,omitempty"`
+
 	HasCpu bool    `json:"has_cpu"`
 	Cpu    CpuSpec `json:"cpu,omitempty"`
 

Godeps/_workspace/src/github.com/google/cadvisor/manager/container.go

@@ -24,6 +24,7 @@ import (
 
 	"github.com/docker/docker/pkg/units"
 	"github.com/golang/glog"
+	"github.com/google/cadvisor/collector"
 	"github.com/google/cadvisor/container"
 	info "github.com/google/cadvisor/info/v1"
 	"github.com/google/cadvisor/info/v2"
@@ -63,6 +64,9 @@ type containerData struct {
 
 	// Tells the container to stop.
 	stop chan bool
+
+	// Runs custom metric collectors.
+	collectorManager collector.CollectorManager
 }
 
 func (c *containerData) Start() error {
@@ -109,7 +113,7 @@ func (c *containerData) DerivedStats() (v2.DerivedStats, error) {
 	return c.summaryReader.DerivedStats()
 }
 
-func newContainerData(containerName string, memoryStorage *memory.InMemoryStorage, handler container.ContainerHandler, loadReader cpuload.CpuLoadReader, logUsage bool) (*containerData, error) {
+func newContainerData(containerName string, memoryStorage *memory.InMemoryStorage, handler container.ContainerHandler, loadReader cpuload.CpuLoadReader, logUsage bool, collectorManager collector.CollectorManager) (*containerData, error) {
 	if memoryStorage == nil {
 		return nil, fmt.Errorf("nil memory storage")
 	}
@@ -129,6 +133,7 @@ func newContainerData(containerName string, memoryStorage *memory.InMemoryStorag
 		logUsage:             logUsage,
 		loadAvg:              -1.0, // negative value indicates uninitialized.
 		stop:                 make(chan bool, 1),
+		collectorManager:     collectorManager,
 	}
 	cont.info.ContainerReference = ref
 
@@ -172,6 +177,7 @@ func (self *containerData) nextHousekeeping(lastHousekeeping time.Time) time.Tim
 	return lastHousekeeping.Add(self.housekeepingInterval)
 }
 
+// TODO(vmarmol): Implement stats collecting as a custom collector.
 func (c *containerData) housekeeping() {
 	// Long housekeeping is either 100ms or half of the housekeeping interval.
 	longHousekeeping := 100 * time.Millisecond
@@ -226,12 +232,24 @@ func (c *containerData) housekeeping() {
 			}
 		}
 
-		// Schedule the next housekeeping. Sleep until that time.
-		nextHousekeeping := c.nextHousekeeping(lastHousekeeping)
-		if time.Now().Before(nextHousekeeping) {
-			time.Sleep(nextHousekeeping.Sub(time.Now()))
+		// Run custom collectors.
+		nextCollectionTime, err := c.collectorManager.Collect()
+		if err != nil && c.allowErrorLogging() {
+			glog.Warningf("[%s] Collection failed: %v", c.info.Name, err)
 		}
-		lastHousekeeping = nextHousekeeping
+
+		// Next housekeeping is the first of the stats or the custom collector's housekeeping.
+		nextHousekeeping := c.nextHousekeeping(lastHousekeeping)
+		next := nextHousekeeping
+		if !nextCollectionTime.IsZero() && nextCollectionTime.Before(nextHousekeeping) {
+			next = nextCollectionTime
+		}
+
+		// Schedule the next housekeeping. Sleep until that time.
+		if time.Now().Before(next) {
+			time.Sleep(next.Sub(time.Now()))
+		}
+		lastHousekeeping = next
 	}
 }
 
@@ -302,7 +320,7 @@ func (c *containerData) updateStats() error {
 		err := c.summaryReader.AddSample(*stats)
 		if err != nil {
 			// Ignore summary errors for now.
-			glog.V(2).Infof("failed to add summary stats for %q: %v", c.info.Name, err)
+			glog.V(2).Infof("Failed to add summary stats for %q: %v", c.info.Name, err)
 		}
 	}
 	ref, err := c.handler.ContainerReference()

Godeps/_workspace/src/github.com/google/cadvisor/manager/container_test.go

@@ -22,6 +22,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/google/cadvisor/collector"
 	"github.com/google/cadvisor/container"
 	info "github.com/google/cadvisor/info/v1"
 	itest "github.com/google/cadvisor/info/v1/test"
@@ -40,7 +41,7 @@ func setupContainerData(t *testing.T, spec info.ContainerSpec) (*containerData,
 		nil,
 	)
 	memoryStorage := memory.New(60, nil)
-	ret, err := newContainerData(containerName, memoryStorage, mockHandler, nil, false)
+	ret, err := newContainerData(containerName, memoryStorage, mockHandler, nil, false, &collector.FakeCollectorManager{})
 	if err != nil {
 		t.Fatal(err)
 	}

Godeps/_workspace/src/github.com/google/cadvisor/manager/manager.go

@@ -20,12 +20,14 @@ import (
 	"fmt"
 	"path"
 	"regexp"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
 
 	"github.com/docker/libcontainer/cgroups"
 	"github.com/golang/glog"
+	"github.com/google/cadvisor/collector"
 	"github.com/google/cadvisor/container"
 	"github.com/google/cadvisor/container/docker"
 	"github.com/google/cadvisor/container/raw"
@@ -42,6 +44,8 @@ import (
 var globalHousekeepingInterval = flag.Duration("global_housekeeping_interval", 1*time.Minute, "Interval between global housekeepings")
 var logCadvisorUsage = flag.Bool("log_cadvisor_usage", false, "Whether to log the usage of the cAdvisor container")
 var enableLoadReader = flag.Bool("enable_load_reader", false, "Whether to enable cpu load reader")
+var eventStorageAgeLimit = flag.String("event_storage_age_limit", "default=24h", "Max length of time for which to store events (per type). Value is a comma separated list of key values, where the keys are event types (e.g.: creation, oom) or \"default\" and the value is a duration. Default is applied to all non-specified event types")
+var eventStorageEventLimit = flag.String("event_storage_event_limit", "default=100000", "Max number of events to store (per type). Value is a comma separated list of key values, where the keys are event types (e.g.: creation, oom) or \"default\" and the value is an integer. Default is applied to all non-specified event types")
 
 // The Manager interface defines operations for starting a manager and getting
 // container and machine information.
@@ -73,6 +77,9 @@ type Manager interface {
 	// Get info for all requested containers based on the request options.
 	GetRequestedContainersInfo(containerName string, options v2.RequestOptions) (map[string]*info.ContainerInfo, error)
 
+	// Returns true if the named container exists.
+	Exists(containerName string) bool
+
 	// Get information about the machine.
 	GetMachineInfo() (*info.MachineInfo, error)
 
@@ -133,7 +140,7 @@ func New(memoryStorage *memory.InMemoryStorage, sysfs sysfs.SysFs) (Manager, err
 	newManager.versionInfo = *versionInfo
 	glog.Infof("Version: %+v", newManager.versionInfo)
 
-	newManager.eventHandler = events.NewEventManager()
+	newManager.eventHandler = events.NewEventManager(parseEventsStoragePolicy())
 
 	// Register Docker container factory.
 	err = docker.Register(newManager, fsInfo)
@@ -618,14 +625,39 @@ func (m *manager) GetVersionInfo() (*info.VersionInfo, error) {
 	return &m.versionInfo, nil
 }
 
+func (m *manager) Exists(containerName string) bool {
+	m.containersLock.Lock()
+	defer m.containersLock.Unlock()
+
+	namespacedName := namespacedContainerName{
+		Name: containerName,
+	}
+
+	_, ok := m.containers[namespacedName]
+	if ok {
+		return true
+	}
+	return false
+}
+
 // Create a container.
 func (m *manager) createContainer(containerName string) error {
-	handler, err := container.NewContainerHandler(containerName)
+	handler, accept, err := container.NewContainerHandler(containerName)
+	if err != nil {
+		return err
+	}
+	if !accept {
+		// ignoring this container.
+		glog.V(4).Infof("ignoring container %q", containerName)
+		return nil
+	}
+	// TODO(vmarmol): Register collectors.
+	collectorManager, err := collector.NewCollectorManager()
 	if err != nil {
 		return err
 	}
 	logUsage := *logCadvisorUsage && containerName == m.cadvisorContainer
-	cont, err := newContainerData(containerName, m.memoryStorage, handler, m.loadReader, logUsage)
+	cont, err := newContainerData(containerName, m.memoryStorage, handler, m.loadReader, logUsage, collectorManager)
 	if err != nil {
 		return err
 	}
@@ -659,33 +691,26 @@ func (m *manager) createContainer(containerName string) error {
 	if alreadyExists {
 		return nil
 	}
-	glog.V(2).Infof("Added container: %q (aliases: %v, namespace: %q)", containerName, cont.info.Aliases, cont.info.Namespace)
+	glog.V(3).Infof("Added container: %q (aliases: %v, namespace: %q)", containerName, cont.info.Aliases, cont.info.Namespace)
 
 	contSpec, err := cont.handler.GetSpec()
 	if err != nil {
 		return err
 	}
 
-	if contSpec.CreationTime.After(m.startupTime) {
-		contRef, err := cont.handler.ContainerReference()
-		if err != nil {
-			return err
-		}
+	contRef, err := cont.handler.ContainerReference()
+	if err != nil {
+		return err
+	}
 
-		newEvent := &info.Event{
-			ContainerName: contRef.Name,
-			Timestamp:     contSpec.CreationTime,
-			EventType:     info.EventContainerCreation,
-			EventData: info.EventData{
-				Created: &info.CreatedEventData{
-					Spec: contSpec,
-				},
-			},
-		}
-		err = m.eventHandler.AddEvent(newEvent)
-		if err != nil {
-			return err
-		}
+	newEvent := &info.Event{
+		ContainerName: contRef.Name,
+		Timestamp:     contSpec.CreationTime,
+		EventType:     info.EventContainerCreation,
+	}
+	err = m.eventHandler.AddEvent(newEvent)
+	if err != nil {
+		return err
 	}
 
 	// Start the container's housekeeping.
@@ -721,7 +746,7 @@ func (m *manager) destroyContainer(containerName string) error {
 			Name:      alias,
 		})
 	}
-	glog.V(2).Infof("Destroyed container: %q (aliases: %v, namespace: %q)", containerName, cont.info.Aliases, cont.info.Namespace)
+	glog.V(3).Infof("Destroyed container: %q (aliases: %v, namespace: %q)", containerName, cont.info.Aliases, cont.info.Namespace)
 
 	contRef, err := cont.handler.ContainerReference()
 	if err != nil {
@@ -925,3 +950,50 @@ func (self *manager) GetPastEvents(request *events.Request) ([]*info.Event, erro
 func (self *manager) CloseEventChannel(watch_id int) {
 	self.eventHandler.StopWatch(watch_id)
 }
+
+// Parses the events StoragePolicy from the flags.
+func parseEventsStoragePolicy() events.StoragePolicy {
+	policy := events.DefaultStoragePolicy()
+
+	// Parse max age.
+	parts := strings.Split(*eventStorageAgeLimit, ",")
+	for _, part := range parts {
+		items := strings.Split(part, "=")
+		if len(items) != 2 {
+			glog.Warningf("Unknown event storage policy %q when parsing max age", part)
+			continue
+		}
+		dur, err := time.ParseDuration(items[1])
+		if err != nil {
+			glog.Warningf("Unable to parse event max age duration %q: %v", items[1], err)
+			continue
+		}
+		if items[0] == "default" {
+			policy.DefaultMaxAge = dur
+			continue
+		}
+		policy.PerTypeMaxAge[info.EventType(items[0])] = dur
+	}
+
+	// Parse max number.
+	parts = strings.Split(*eventStorageEventLimit, ",")
+	for _, part := range parts {
+		items := strings.Split(part, "=")
+		if len(items) != 2 {
+			glog.Warningf("Unknown event storage policy %q when parsing max event limit", part)
+			continue
+		}
+		val, err := strconv.Atoi(items[1])
+		if err != nil {
+			glog.Warningf("Unable to parse integer from %q: %v", items[1], err)
+			continue
+		}
+		if items[0] == "default" {
+			policy.DefaultMaxNumEvents = val
+			continue
+		}
+		policy.PerTypeMaxNumEvents[info.EventType(items[0])] = val
+	}
+
+	return policy
+}

Godeps/_workspace/src/github.com/google/cadvisor/manager/manager_mock.go

@@ -70,6 +70,11 @@ func (c *ManagerMock) GetRequestedContainersInfo(containerName string, options v
 	return args.Get(0).(map[string]*info.ContainerInfo), args.Error(1)
 }
 
+func (c *ManagerMock) Exists(name string) bool {
+	args := c.Called(name)
+	return args.Get(0).(bool)
+}
+
 func (c *ManagerMock) WatchForEvents(queryuest *events.Request, passedChannel chan *info.Event) error {
 	args := c.Called(queryuest, passedChannel)
 	return args.Error(0)

Godeps/_workspace/src/github.com/google/cadvisor/manager/manager_test.go

@@ -22,6 +22,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/google/cadvisor/collector"
 	"github.com/google/cadvisor/container"
 	"github.com/google/cadvisor/container/docker"
 	info "github.com/google/cadvisor/info/v1"
@@ -52,7 +53,7 @@ func createManagerAndAddContainers(
 			spec,
 			nil,
 		).Once()
-		cont, err := newContainerData(name, memoryStorage, mockHandler, nil, false)
+		cont, err := newContainerData(name, memoryStorage, mockHandler, nil, false, &collector.FakeCollectorManager{})
 		if err != nil {
 			t.Fatal(err)
 		}

Godeps/_workspace/src/github.com/google/cadvisor/pages/containers.go

@@ -195,12 +195,14 @@ func serveContainersPage(m manager.Manager, w http.ResponseWriter, u *url.URL) e
 		return err
 	}
 
+	rootDir := getRootDir(containerName)
+
 	// Make a list of the parent containers and their links
 	pathParts := strings.Split(string(cont.Name), "/")
 	parentContainers := make([]link, 0, len(pathParts))
 	parentContainers = append(parentContainers, link{
 		Text: "root",
-		Link: ContainersPage,
+		Link: path.Join(rootDir, ContainersPage),
 	})
 	for i := 1; i < len(pathParts); i++ {
 		// Skip empty parts.
@@ -209,16 +211,19 @@ func serveContainersPage(m manager.Manager, w http.ResponseWriter, u *url.URL) e
 		}
 		parentContainers = append(parentContainers, link{
 			Text: pathParts[i],
-			Link: path.Join(ContainersPage, path.Join(pathParts[1:i+1]...)),
+			Link: path.Join(rootDir, ContainersPage, path.Join(pathParts[1:i+1]...)),
 		})
 	}
 
 	// Build the links for the subcontainers.
 	subcontainerLinks := make([]link, 0, len(cont.Subcontainers))
 	for _, sub := range cont.Subcontainers {
+		if !m.Exists(sub.Name) {
+			continue
+		}
 		subcontainerLinks = append(subcontainerLinks, link{
 			Text: getContainerDisplayName(sub),
-			Link: path.Join(ContainersPage, sub.Name),
+			Link: path.Join(rootDir, ContainersPage, sub.Name),
 		})
 	}
 
@@ -236,6 +241,7 @@ func serveContainersPage(m manager.Manager, w http.ResponseWriter, u *url.URL) e
 		MemoryAvailable:    cont.Spec.HasMemory,
 		NetworkAvailable:   cont.Spec.HasNetwork,
 		FsAvailable:        cont.Spec.HasFilesystem,
+		Root:               rootDir,
 	}
 	err = pageTemplate.Execute(w, data)
 	if err != nil {
@@ -245,3 +251,10 @@ func serveContainersPage(m manager.Manager, w http.ResponseWriter, u *url.URL) e
 	glog.V(5).Infof("Request took %s", time.Since(start))
 	return nil
 }
+
+// Build a relative path to the root of the container page.
+func getRootDir(containerName string) string {
+	// The root is at: container depth
+	levels := (strings.Count(containerName, "/"))
+	return strings.Repeat("../", levels)
+}

Godeps/_workspace/src/github.com/google/cadvisor/pages/containers_html.go

@@ -19,23 +19,23 @@ const containersHtmlTemplate = `
   <head>
     <title>cAdvisor - {{.DisplayName}}</title>
     <!-- Latest compiled and minified CSS -->
-    <link rel="stylesheet" href="/static/bootstrap-3.1.1.min.css">
+    <link rel="stylesheet" href="{{.Root}}static/bootstrap-3.1.1.min.css">
 
     <!-- Optional theme -->
-    <link rel="stylesheet" href="/static/bootstrap-theme-3.1.1.min.css">
+    <link rel="stylesheet" href="{{.Root}}static/bootstrap-theme-3.1.1.min.css">
 
-    <link rel="stylesheet" href="/static/containers.css">
+    <link rel="stylesheet" href="{{.Root}}static/containers.css">
 
     <!-- Latest compiled and minified JavaScript -->
-    <script src="/static/jquery-1.10.2.min.js"></script>
-    <script src="/static/bootstrap-3.1.1.min.js"></script>
-    <script type="text/javascript" src="/static/google-jsapi.js"></script>
+    <script src="{{.Root}}static/jquery-1.10.2.min.js"></script>
+    <script src="{{.Root}}static/bootstrap-3.1.1.min.js"></script>
+    <script type="text/javascript" src="{{.Root}}static/google-jsapi.js"></script>
 
-    <script type="text/javascript" src="/static/containers.js"></script>
+    <script type="text/javascript" src="{{.Root}}static/containers.js"></script>
   </head>
   <body>
     <div class="container theme-showcase" >
-      <a href="/" class="col-sm-12" id="logo">
+      <a href="{{.Root}}" class="col-sm-12" id="logo">
       </a>
       <div class="col-sm-12">
 	<div class="page-header">
@@ -49,7 +49,7 @@ const containersHtmlTemplate = `
       </div>
       {{if .IsRoot}}
       <div class="col-sm-12">
-        <h4><a href="/docker">Docker Containers</a></h4>
+        <h4><a href="../docker">Docker Containers</a></h4>
       </div>
       {{end}}
       {{if .Subcontainers}}
@@ -179,7 +179,7 @@ const containersHtmlTemplate = `
       {{end}}
     </div>
     <script type="text/javascript">
-      startPage({{.ContainerName}}, {{.CpuAvailable}}, {{.MemoryAvailable}});
+      startPage({{.ContainerName}}, {{.CpuAvailable}}, {{.MemoryAvailable}}, {{.Root}});
     </script>
   </body>
 </html>

Godeps/_workspace/src/github.com/google/cadvisor/pages/docker.go

@@ -34,6 +34,7 @@ func serveDockerPage(m manager.Manager, w http.ResponseWriter, u *url.URL) error
 
 	// The container name is the path after the handler
 	containerName := u.Path[len(DockerPage):]
+	rootDir := getRootDir(u.Path)
 
 	var data *pageData
 	if containerName == "" {
@@ -62,6 +63,7 @@ func serveDockerPage(m manager.Manager, w http.ResponseWriter, u *url.URL) error
 					Link: DockerPage,
 				}},
 			Subcontainers: subcontainers,
+			Root:          rootDir,
 		}
 	} else {
 		// Get the container.
@@ -103,6 +105,7 @@ func serveDockerPage(m manager.Manager, w http.ResponseWriter, u *url.URL) error
 			MemoryAvailable:    cont.Spec.HasMemory,
 			NetworkAvailable:   cont.Spec.HasNetwork,
 			FsAvailable:        cont.Spec.HasFilesystem,
+			Root:               rootDir,
 		}
 	}
 

Godeps/_workspace/src/github.com/google/cadvisor/pages/pages.go

@@ -51,6 +51,7 @@ type pageData struct {
 	MemoryAvailable    bool
 	NetworkAvailable   bool
 	FsAvailable        bool
+	Root               string
 }
 
 func init() {

Godeps/_workspace/src/github.com/google/cadvisor/pages/static/containers_js.go

@@ -1518,21 +1518,21 @@ function drawGauges(elementId, gauges) {
 }
 
 // Get the machine info.
-function getMachineInfo(callback) {
-	$.getJSON("/api/v1.0/machine", function(data) {
+function getMachineInfo(rootDir, callback) {
+	$.getJSON(rootDir + "api/v1.0/machine", function(data) {
 		callback(data);
 	});
 }
 
 // Get the container stats for the specified container.
-function getStats(containerName, callback) {
+function getStats(rootDir, containerName, callback) {
 	// Request 60s of container history and no samples.
 	var request = JSON.stringify({
                 // Update main.statsRequestedByUI while updating "num_stats" here.
 		"num_stats": 60,
 		"num_samples": 0
 	});
-	$.post("/api/v1.0/containers" + containerName, request, function(data) {
+	$.post(rootDir + "api/v1.0/containers" + containerName, request, function(data) {
 		callback(data);
 	}, "json");
 }
@@ -1891,7 +1891,7 @@ function drawCharts(machineInfo, containerInfo) {
 }
 
 // Executed when the page finishes loading.
-function startPage(containerName, hasCpu, hasMemory) {
+function startPage(containerName, hasCpu, hasMemory, rootDir) {
 	// Don't fetch data if we don't have any resource.
 	if (!hasCpu && !hasMemory) {
 		return;
@@ -1902,9 +1902,9 @@ function startPage(containerName, hasCpu, hasMemory) {
 	window.cadvisor.firstRun = true;
 
 	// Get machine info, then get the stats every 1s.
-	getMachineInfo(function(machineInfo) {
+	getMachineInfo(rootDir, function(machineInfo) {
 		setInterval(function() {
-			getStats(containerName, function(containerInfo){
+			getStats(rootDir, containerName, function(containerInfo){
 				if (window.cadvisor.firstRun && containerInfo.spec.has_filesystem) {
 					window.cadvisor.firstRun = false;
 					startFileSystemUsage("filesystem-usage", machineInfo, containerInfo);

Godeps/_workspace/src/github.com/google/cadvisor/storage/memory/memory.go

@@ -57,7 +57,7 @@ func (self *containerStorage) RecentStats(start, end time.Time, maxStats int) ([
 func newContainerStore(ref info.ContainerReference, maxAge time.Duration) *containerStorage {
 	return &containerStorage{
 		ref:         ref,
-		recentStats: utils.NewTimedStore(maxAge),
+		recentStats: utils.NewTimedStore(maxAge, -1),
 		maxAge:      maxAge,
 	}
 }

Godeps/_workspace/src/github.com/google/cadvisor/utils/oomparser/oomparser.go

@@ -180,7 +180,7 @@ func trySystemd() (*OomParser, error) {
 	if err != nil {
 		return nil, err
 	}
-	glog.V(1).Infof("oomparser using systemd")
+	glog.Infof("oomparser using systemd")
 	return &OomParser{
 		ioreader: bufio.NewReader(readcloser),
 	}, nil

Godeps/_workspace/src/github.com/google/cadvisor/utils/timed_store.go

@@ -19,10 +19,12 @@ import (
 	"time"
 )
 
-// A time-based buffer for ContainerStats. Holds information for a specific time period.
+// A time-based buffer for ContainerStats.
+// Holds information for a specific time period and/or a max number of items.
 type TimedStore struct {
-	buffer []timedStoreData
-	age    time.Duration
+	buffer   []timedStoreData
+	age      time.Duration
+	maxItems int
 }
 
 type timedStoreData struct {
@@ -31,10 +33,12 @@ type timedStoreData struct {
 }
 
 // Returns a new thread-compatible TimedStore.
-func NewTimedStore(age time.Duration) *TimedStore {
+// A maxItems value of -1 means no limit.
+func NewTimedStore(age time.Duration, maxItems int) *TimedStore {
 	return &TimedStore{
-		buffer: make([]timedStoreData, 0),
-		age:    age,
+		buffer:   make([]timedStoreData, 0),
+		age:      age,
+		maxItems: maxItems,
 	}
 }
 
@@ -49,6 +53,12 @@ func (self *TimedStore) Add(timestamp time.Time, item interface{}) {
 		self.buffer = self.buffer[index:]
 	}
 
+	// Remove any elements if over our max size.
+	if self.maxItems >= 0 && (len(self.buffer)+1) > self.maxItems {
+		startIndex := len(self.buffer) + 1 - self.maxItems
+		self.buffer = self.buffer[startIndex:]
+	}
+
 	copied := item
 	self.buffer = append(self.buffer, timedStoreData{
 		timestamp: timestamp,

Godeps/_workspace/src/github.com/google/cadvisor/utils/timed_store_test.go

@@ -55,7 +55,7 @@ func expectElements(t *testing.T, actual []interface{}, expected []int) {
 }
 
 func TestAdd(t *testing.T) {
-	sb := NewTimedStore(5 * time.Second)
+	sb := NewTimedStore(5*time.Second, 100)
 
 	// Add 1.
 	sb.Add(createTime(0), 0)
@@ -84,7 +84,7 @@ func TestAdd(t *testing.T) {
 }
 
 func TestGet(t *testing.T) {
-	sb := NewTimedStore(5 * time.Second)
+	sb := NewTimedStore(5*time.Second, -1)
 	sb.Add(createTime(1), 1)
 	sb.Add(createTime(2), 2)
 	sb.Add(createTime(3), 3)
@@ -97,7 +97,7 @@ func TestGet(t *testing.T) {
 }
 
 func TestInTimeRange(t *testing.T) {
-	sb := NewTimedStore(5 * time.Second)
+	sb := NewTimedStore(5*time.Second, -1)
 	assert := assert.New(t)
 
 	var empty time.Time
@@ -174,7 +174,7 @@ func TestInTimeRange(t *testing.T) {
 }
 
 func TestInTimeRangeWithLimit(t *testing.T) {
-	sb := NewTimedStore(5 * time.Second)
+	sb := NewTimedStore(5*time.Second, -1)
 	sb.Add(createTime(1), 1)
 	sb.Add(createTime(2), 2)
 	sb.Add(createTime(3), 3)
@@ -190,3 +190,32 @@ func TestInTimeRangeWithLimit(t *testing.T) {
 	expectElements(t, sb.InTimeRange(empty, empty, 1), []int{4})
 	assert.Empty(t, sb.InTimeRange(empty, empty, 0))
 }
+
+func TestLimitedSize(t *testing.T) {
+	sb := NewTimedStore(time.Hour, 5)
+
+	// Add 1.
+	sb.Add(createTime(0), 0)
+	expectSize(t, sb, 1)
+	expectAllElements(t, sb, []int{0})
+
+	// Fill the buffer.
+	for i := 1; i <= 5; i++ {
+		expectSize(t, sb, i)
+		sb.Add(createTime(i), i)
+	}
+	expectSize(t, sb, 5)
+	expectAllElements(t, sb, []int{1, 2, 3, 4, 5})
+
+	// Add more than is available in the buffer
+	sb.Add(createTime(6), 6)
+	expectSize(t, sb, 5)
+	expectAllElements(t, sb, []int{2, 3, 4, 5, 6})
+
+	// Replace all elements.
+	for i := 7; i <= 10; i++ {
+		sb.Add(createTime(i), i)
+	}
+	expectSize(t, sb, 5)
+	expectAllElements(t, sb, []int{6, 7, 8, 9, 10})
+}

Godeps/_workspace/src/github.com/google/cadvisor/version/version.go

@@ -15,4 +15,4 @@
 package version
 
 // Version of cAdvisor.
-const VERSION = "0.12.0"
+const VERSION = "0.13.0"

Godeps/_workspace/src/golang.org/x/exp/inotify/inotify_linux.go

@@ -24,7 +24,7 @@ Example:
     }
 
 */
-package inotify
+package inotify // import "golang.org/x/exp/inotify"
 
 import (
 	"errors"
@@ -221,7 +221,7 @@ func (e *Event) String() string {
 
 	m := e.Mask
 	for _, b := range eventBits {
-		if m&b.Value != 0 {
+		if m&b.Value == b.Value {
 			m &^= b.Value
 			events += "|" + b.Name
 		}