updating cadvisor deps

Signed-off-by: Vishnu kannan <vishnuk@google.com>

vendor/github.com/google/cadvisor/collector/config.go

@@ -17,12 +17,13 @@ package collector
 import (
 	"time"
 
+	"encoding/json"
 	"github.com/google/cadvisor/info/v1"
 )
 
 type Config struct {
 	//the endpoint to hit to scrape metrics
-	Endpoint string `json:"endpoint"`
+	Endpoint EndpointConfig `json:"endpoint"`
 
 	//holds information about different metrics that can be collected
 	MetricsConfig []MetricConfig `json:"metrics_config"`
@@ -52,7 +53,7 @@ type MetricConfig struct {
 
 type Prometheus struct {
 	//the endpoint to hit to scrape metrics
-	Endpoint string `json:"endpoint"`
+	Endpoint EndpointConfig `json:"endpoint"`
 
 	//the frequency at which metrics should be collected
 	PollingFrequency time.Duration `json:"polling_frequency"`
@@ -60,3 +61,40 @@ type Prometheus struct {
 	//holds names of different metrics that can be collected
 	MetricsConfig []string `json:"metrics_config"`
 }
+
+type EndpointConfig struct {
+	// The full URL of the endpoint to reach
+	URL string
+	// A configuration in which an actual URL is constructed from, using the container's ip address
+	URLConfig URLConfig
+}
+
+type URLConfig struct {
+	// the protocol to use for connecting to the endpoint. Eg 'http' or 'https'
+	Protocol string `json:"protocol"`
+
+	// the port to use for connecting to the endpoint. Eg '8778'
+	Port json.Number `json:"port"`
+
+	// the path to use for the endpoint. Eg '/metrics'
+	Path string `json:"path"`
+}
+
+func (ec *EndpointConfig) UnmarshalJSON(b []byte) error {
+	url := ""
+	config := URLConfig{
+		Protocol: "http",
+		Port:     "8000",
+	}
+
+	if err := json.Unmarshal(b, &url); err == nil {
+		ec.URL = url
+		return nil
+	}
+	err := json.Unmarshal(b, &config)
+	if err == nil {
+		ec.URLConfig = config
+		return nil
+	}
+	return err
+}

vendor/github.com/google/cadvisor/collector/generic_collector.go

@@ -24,6 +24,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/google/cadvisor/container"
 	"github.com/google/cadvisor/info/v1"
 )
 
@@ -51,13 +52,15 @@ type collectorInfo struct {
 }
 
 //Returns a new collector using the information extracted from the configfile
-func NewCollector(collectorName string, configFile []byte, metricCountLimit int) (*GenericCollector, error) {
+func NewCollector(collectorName string, configFile []byte, metricCountLimit int, containerHandler container.ContainerHandler) (*GenericCollector, error) {
 	var configInJSON Config
 	err := json.Unmarshal(configFile, &configInJSON)
 	if err != nil {
 		return nil, err
 	}
 
+	configInJSON.Endpoint.configure(containerHandler)
+
 	//TODO : Add checks for validity of config file (eg : Accurate JSON fields)
 
 	if len(configInJSON.MetricsConfig) == 0 {
@@ -130,7 +133,7 @@ func (collector *GenericCollector) Collect(metrics map[string][]v1.MetricVal) (t
 	currentTime := time.Now()
 	nextCollectionTime := currentTime.Add(time.Duration(collector.info.minPollingFrequency))
 
-	uri := collector.configFile.Endpoint
+	uri := collector.configFile.Endpoint.URL
 	response, err := http.Get(uri)
 	if err != nil {
 		return nextCollectionTime, nil, err

vendor/github.com/google/cadvisor/collector/prometheus_collector.go

@@ -24,6 +24,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/google/cadvisor/container"
 	"github.com/google/cadvisor/info/v1"
 )
 
@@ -46,13 +47,15 @@ type PrometheusCollector struct {
 }
 
 //Returns a new collector using the information extracted from the configfile
-func NewPrometheusCollector(collectorName string, configFile []byte, metricCountLimit int) (*PrometheusCollector, error) {
+func NewPrometheusCollector(collectorName string, configFile []byte, metricCountLimit int, containerHandler container.ContainerHandler) (*PrometheusCollector, error) {
 	var configInJSON Prometheus
 	err := json.Unmarshal(configFile, &configInJSON)
 	if err != nil {
 		return nil, err
 	}
 
+	configInJSON.Endpoint.configure(containerHandler)
+
 	minPollingFrequency := configInJSON.PollingFrequency
 
 	// Minimum supported frequency is 1s
@@ -108,7 +111,7 @@ func getMetricData(line string) string {
 
 func (collector *PrometheusCollector) GetSpec() []v1.MetricSpec {
 	specs := []v1.MetricSpec{}
-	response, err := http.Get(collector.configFile.Endpoint)
+	response, err := http.Get(collector.configFile.Endpoint.URL)
 	if err != nil {
 		return specs
 	}
@@ -153,7 +156,7 @@ func (collector *PrometheusCollector) Collect(metrics map[string][]v1.MetricVal)
 	currentTime := time.Now()
 	nextCollectionTime := currentTime.Add(time.Duration(collector.pollingFrequency))
 
-	uri := collector.configFile.Endpoint
+	uri := collector.configFile.Endpoint.URL
 	response, err := http.Get(uri)
 	if err != nil {
 		return nextCollectionTime, nil, err

vendor/github.com/google/cadvisor/collector/util.go

@@ -0,0 +1,26 @@
+// Copyright 2016 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 "github.com/google/cadvisor/container"
+
+func (endpointConfig *EndpointConfig) configure(containerHandler container.ContainerHandler) {
+	//If the exact URL was not specified, generate it based on the ip address of the container.
+	endpoint := endpointConfig
+	if endpoint.URL == "" {
+		ipAddress := containerHandler.GetContainerIPAddress()
+		endpointConfig.URL = endpoint.URLConfig.Protocol + "://" + ipAddress + ":" + endpoint.URLConfig.Port.String() + endpoint.URLConfig.Path
+	}
+}

vendor/github.com/google/cadvisor/container/container.go

@@ -59,6 +59,9 @@ type ContainerHandler interface {
 	// Returns container labels, if available.
 	GetContainerLabels() map[string]string
 
+	// Returns the container's ip address, if available
+	GetContainerIPAddress() string
+
 	// Returns whether the container still exists.
 	Exists() bool
 

vendor/github.com/google/cadvisor/container/docker/handler.go

@@ -94,6 +94,9 @@ type dockerContainerHandler struct {
 	// Filesystem handler.
 	fsHandler common.FsHandler
 
+	// The IP address of the container
+	ipAddress string
+
 	ignoreMetrics container.MetricSet
 
 	// thin pool watcher
@@ -222,6 +225,22 @@ func newDockerContainerHandler(
 	handler.networkMode = ctnr.HostConfig.NetworkMode
 	handler.deviceID = ctnr.GraphDriver.Data["DeviceId"]
 
+	// Obtain the IP address for the contianer.
+	// If the NetworkMode starts with 'container:' then we need to use the IP address of the container specified.
+	// This happens in cases such as kubernetes where the containers doesn't have an IP address itself and we need to use the pod's address
+	ipAddress := ctnr.NetworkSettings.IPAddress
+	networkMode := string(ctnr.HostConfig.NetworkMode)
+	if ipAddress == "" && strings.HasPrefix(networkMode, "container:") {
+		containerId := strings.TrimPrefix(networkMode, "container:")
+		c, err := client.ContainerInspect(context.Background(), containerId)
+		if err != nil {
+			return nil, fmt.Errorf("failed to inspect container %q: %v", id, err)
+		}
+		ipAddress = c.NetworkSettings.IPAddress
+	}
+
+	handler.ipAddress = ipAddress
+
 	if !ignoreMetrics.Has(container.DiskUsageMetrics) {
 		handler.fsHandler = &dockerFsHandler{
 			fsHandler:       common.NewFsHandler(time.Minute, rootfsStorageDir, otherStorageDir, fsInfo),
@@ -412,6 +431,10 @@ func (self *dockerContainerHandler) GetContainerLabels() map[string]string {
 	return self.labels
 }
 
+func (self *dockerContainerHandler) GetContainerIPAddress() string {
+	return self.ipAddress
+}
+
 func (self *dockerContainerHandler) ListProcesses(listType container.ListType) ([]int, error) {
 	return containerlibcontainer.GetProcesses(self.cgroupManager)
 }

vendor/github.com/google/cadvisor/container/libcontainer/helpers.go

@@ -387,23 +387,16 @@ func toContainerStats2(s *cgroups.Stats, ret *info.ContainerStats) {
 		ret.Memory.ContainerData.Pgmajfault = v
 		ret.Memory.HierarchicalData.Pgmajfault = v
 	}
-	if v, ok := s.MemoryStats.Stats["total_inactive_anon"]; ok {
-		workingSet := ret.Memory.Usage
+
+	workingSet := ret.Memory.Usage
+	if v, ok := s.MemoryStats.Stats["total_inactive_file"]; ok {
 		if workingSet < v {
 			workingSet = 0
 		} else {
 			workingSet -= v
 		}
-
-		if v, ok := s.MemoryStats.Stats["total_inactive_file"]; ok {
-			if workingSet < v {
-				workingSet = 0
-			} else {
-				workingSet -= v
-			}
-		}
-		ret.Memory.WorkingSet = workingSet
 	}
+	ret.Memory.WorkingSet = workingSet
 }
 
 func toContainerStats3(libcontainerStats *libcontainer.Stats, ret *info.ContainerStats) {

vendor/github.com/google/cadvisor/container/mock.go

@@ -1,119 +0,0 @@
-// Copyright 2014 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.
-
-// +build test
-
-package container
-
-import (
-	info "github.com/google/cadvisor/info/v1"
-
-	"github.com/stretchr/testify/mock"
-)
-
-// This struct mocks a container handler.
-type MockContainerHandler struct {
-	mock.Mock
-	Name    string
-	Aliases []string
-}
-
-func NewMockContainerHandler(containerName string) *MockContainerHandler {
-	return &MockContainerHandler{
-		Name: containerName,
-	}
-}
-
-// If self.Name is not empty, then ContainerReference() will return self.Name and self.Aliases.
-// Otherwise, it will use the value provided by .On().Return().
-func (self *MockContainerHandler) ContainerReference() (info.ContainerReference, error) {
-	if len(self.Name) > 0 {
-		var aliases []string
-		if len(self.Aliases) > 0 {
-			aliases = make([]string, len(self.Aliases))
-			copy(aliases, self.Aliases)
-		}
-		return info.ContainerReference{
-			Name:    self.Name,
-			Aliases: aliases,
-		}, nil
-	}
-	args := self.Called()
-	return args.Get(0).(info.ContainerReference), args.Error(1)
-}
-
-func (self *MockContainerHandler) Start() {}
-
-func (self *MockContainerHandler) Cleanup() {}
-
-func (self *MockContainerHandler) GetSpec() (info.ContainerSpec, error) {
-	args := self.Called()
-	return args.Get(0).(info.ContainerSpec), args.Error(1)
-}
-
-func (self *MockContainerHandler) GetStats() (*info.ContainerStats, error) {
-	args := self.Called()
-	return args.Get(0).(*info.ContainerStats), args.Error(1)
-}
-
-func (self *MockContainerHandler) ListContainers(listType ListType) ([]info.ContainerReference, error) {
-	args := self.Called(listType)
-	return args.Get(0).([]info.ContainerReference), args.Error(1)
-}
-
-func (self *MockContainerHandler) ListProcesses(listType ListType) ([]int, error) {
-	args := self.Called(listType)
-	return args.Get(0).([]int), args.Error(1)
-}
-
-func (self *MockContainerHandler) Exists() bool {
-	args := self.Called()
-	return args.Get(0).(bool)
-}
-
-func (self *MockContainerHandler) GetCgroupPath(path string) (string, error) {
-	args := self.Called(path)
-	return args.Get(0).(string), args.Error(1)
-}
-
-func (self *MockContainerHandler) GetContainerLabels() map[string]string {
-	args := self.Called()
-	return args.Get(0).(map[string]string)
-}
-
-func (self *MockContainerHandler) Type() ContainerType {
-	args := self.Called()
-	return args.Get(0).(ContainerType)
-}
-
-type FactoryForMockContainerHandler struct {
-	Name                        string
-	PrepareContainerHandlerFunc func(name string, handler *MockContainerHandler)
-}
-
-func (self *FactoryForMockContainerHandler) String() string {
-	return self.Name
-}
-
-func (self *FactoryForMockContainerHandler) NewContainerHandler(name string, inHostNamespace bool) (ContainerHandler, error) {
-	handler := &MockContainerHandler{}
-	if self.PrepareContainerHandlerFunc != nil {
-		self.PrepareContainerHandlerFunc(name, handler)
-	}
-	return handler, nil
-}
-
-func (self *FactoryForMockContainerHandler) CanHandle(name string) bool {
-	return true
-}

vendor/github.com/google/cadvisor/container/raw/handler.go

@@ -256,6 +256,11 @@ func (self *rawContainerHandler) GetContainerLabels() map[string]string {
 	return map[string]string{}
 }
 
+func (self *rawContainerHandler) GetContainerIPAddress() string {
+	// the IP address for the raw container corresponds to the system ip address.
+	return "127.0.0.1"
+}
+
 func (self *rawContainerHandler) ListContainers(listType container.ListType) ([]info.ContainerReference, error) {
 	return common.ListContainers(self.name, self.cgroupPaths, listType)
 }

vendor/github.com/google/cadvisor/container/rkt/handler.go

@@ -250,6 +250,21 @@ func (handler *rktContainerHandler) GetStats() (*info.ContainerStats, error) {
 	return stats, nil
 }
 
+func (self *rktContainerHandler) GetContainerIPAddress() string {
+	// attempt to return the ip address of the pod
+	// if a specific ip address of the pod could not be determined, return the system ip address
+	if self.isPod && len(self.apiPod.Networks) > 0 {
+		address := self.apiPod.Networks[0].Ipv4
+		if address != "" {
+			return address
+		} else {
+			return self.apiPod.Networks[0].Ipv6
+		}
+	} else {
+		return "127.0.0.1"
+	}
+}
+
 func (handler *rktContainerHandler) GetCgroupPath(resource string) (string, error) {
 	path, ok := handler.cgroupPaths[resource]
 	if !ok {

vendor/github.com/google/cadvisor/devicemapper/thin_ls_client.go

@@ -80,7 +80,7 @@ func parseThinLsOutput(output []byte) map[string]uint64 {
 		deviceID := fields[0]
 		usage, err := strconv.ParseUint(fields[1], 10, 64)
 		if err != nil {
-			glog.Warningf("unexpected error parsing thin_ls output: %v", err)
+			glog.Warning("unexpected error parsing thin_ls output: %v", err)
 			continue
 		}
 

vendor/github.com/google/cadvisor/fs/fs.go

@@ -99,38 +99,15 @@ func NewFsInfo(context Context) (FsInfo, error) {
 	if err != nil {
 		return nil, err
 	}
+
+	// Avoid devicemapper container mounts - these are tracked by the ThinPoolWatcher
+	excluded := []string{fmt.Sprintf("%s/devicemapper/mnt", context.Docker.Root)}
 	fsInfo := &RealFsInfo{
-		partitions: make(map[string]partition, 0),
+		partitions: processMounts(mounts, excluded),
 		labels:     make(map[string]string, 0),
 		dmsetup:    devicemapper.NewDmsetupClient(),
 	}
 
-	supportedFsType := map[string]bool{
-		// all ext systems are checked through prefix.
-		"btrfs": true,
-		"xfs":   true,
-		"zfs":   true,
-	}
-	for _, mount := range mounts {
-		var Fstype string
-		if !strings.HasPrefix(mount.Fstype, "ext") && !supportedFsType[mount.Fstype] {
-			continue
-		}
-		// Avoid bind mounts.
-		if _, ok := fsInfo.partitions[mount.Source]; ok {
-			continue
-		}
-		if mount.Fstype == "zfs" {
-			Fstype = mount.Fstype
-		}
-		fsInfo.partitions[mount.Source] = partition{
-			fsType:     Fstype,
-			mountpoint: mount.Mountpoint,
-			major:      uint(mount.Major),
-			minor:      uint(mount.Minor),
-		}
-	}
-
 	fsInfo.addRktImagesLabel(context, mounts)
 	// need to call this before the log line below printing out the partitions, as this function may
 	// add a "partition" for devicemapper to fsInfo.partitions
@@ -141,6 +118,47 @@ func NewFsInfo(context Context) (FsInfo, error) {
 	return fsInfo, nil
 }
 
+func processMounts(mounts []*mount.Info, excludedMountpointPrefixes []string) map[string]partition {
+	partitions := make(map[string]partition, 0)
+
+	supportedFsType := map[string]bool{
+		// all ext systems are checked through prefix.
+		"btrfs": true,
+		"xfs":   true,
+		"zfs":   true,
+	}
+
+	for _, mount := range mounts {
+		if !strings.HasPrefix(mount.Fstype, "ext") && !supportedFsType[mount.Fstype] {
+			continue
+		}
+		// Avoid bind mounts.
+		if _, ok := partitions[mount.Source]; ok {
+			continue
+		}
+
+		hasPrefix := false
+		for _, prefix := range excludedMountpointPrefixes {
+			if strings.HasPrefix(mount.Mountpoint, prefix) {
+				hasPrefix = true
+				break
+			}
+		}
+		if hasPrefix {
+			continue
+		}
+
+		partitions[mount.Source] = partition{
+			fsType:     mount.Fstype,
+			mountpoint: mount.Mountpoint,
+			major:      uint(mount.Major),
+			minor:      uint(mount.Minor),
+		}
+	}
+
+	return partitions
+}
+
 // getDockerDeviceMapperInfo returns information about the devicemapper device and "partition" if
 // docker is using devicemapper for its storage driver. If a loopback device is being used, don't
 // return any information or error, as we want to report based on the actual partition where the

vendor/github.com/google/cadvisor/manager/manager.go

@@ -752,7 +752,7 @@ func (m *manager) registerCollectors(collectorConfigs map[string]string, cont *c
 		glog.V(3).Infof("Got config from %q: %q", v, configFile)
 
 		if strings.HasPrefix(k, "prometheus") || strings.HasPrefix(k, "Prometheus") {
-			newCollector, err := collector.NewPrometheusCollector(k, configFile, *applicationMetricsCountLimit)
+			newCollector, err := collector.NewPrometheusCollector(k, configFile, *applicationMetricsCountLimit, cont.handler)
 			if err != nil {
 				glog.Infof("failed to create collector for container %q, config %q: %v", cont.info.Name, k, err)
 				return err
@@ -763,7 +763,7 @@ func (m *manager) registerCollectors(collectorConfigs map[string]string, cont *c
 				return err
 			}
 		} else {
-			newCollector, err := collector.NewCollector(k, configFile, *applicationMetricsCountLimit)
+			newCollector, err := collector.NewCollector(k, configFile, *applicationMetricsCountLimit, cont.handler)
 			if err != nil {
 				glog.Infof("failed to create collector for container %q, config %q: %v", cont.info.Name, k, err)
 				return err

vendor/github.com/google/cadvisor/manager/watcher/raw/raw.go

@@ -19,6 +19,7 @@ package raw
 import (
 	"fmt"
 	"io/ioutil"
+	"os"
 	"path"
 	"strings"
 
@@ -133,9 +134,15 @@ func (self *rawContainerWatcher) watchDirectory(dir string, containerName string
 	}
 	for _, entry := range entries {
 		if entry.IsDir() {
-			// TODO(vmarmol): We don't have to fail here, maybe we can recover and try to get as many registrations as we can.
-			_, err = self.watchDirectory(path.Join(dir, entry.Name()), path.Join(containerName, entry.Name()))
+			entryPath := path.Join(dir, entry.Name())
+			_, err = self.watchDirectory(entryPath, path.Join(containerName, entry.Name()))
 			if err != nil {
+				glog.Errorf("Failed to watch directory %q: %v", entryPath, err)
+				if os.IsNotExist(err) {
+					// The directory may have been removed before watching. Try to watch the other
+					// subdirectories. (https://github.com/kubernetes/kubernetes/issues/28997)
+					continue
+				}
 				return alreadyWatching, err
 			}
 		}

vendor/github.com/google/cadvisor/utils/cloudinfo/gce.go

@@ -15,15 +15,27 @@
 package cloudinfo
 
 import (
+	"io/ioutil"
 	"strings"
 
 	info "github.com/google/cadvisor/info/v1"
 
+	"github.com/golang/glog"
 	"google.golang.org/cloud/compute/metadata"
 )
 
+const (
+	gceProductName = "/sys/class/dmi/id/product_name"
+	google         = "Google"
+)
+
 func onGCE() bool {
-	return metadata.OnGCE()
+	data, err := ioutil.ReadFile(gceProductName)
+	if err != nil {
+		glog.V(2).Infof("Error while reading product_name: %v", err)
+		return false
+	}
+	return strings.Contains(string(data), google)
 }
 
 func getGceInstanceType() info.InstanceType {

vendor/github.com/google/cadvisor/version/VERSION

@@ -1 +0,0 @@
-0.23.6