kubernetes/pkg/kubelet/stats/stats_provider_test.go
Kubernetes Submit Queue 8226973ae8
Merge pull request #52144 from andyxning/fix_network_value_for_stats_summary
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

fix network value for stats summary for multiple network interfaces

This PR is part of [Heapster #1788](https://github.com/kubernetes/heapster/pull/1788). 

The original reason is when there are more than one none `lo`, `docker0`, `veth` network interfaces instead of just one `eth0`, the network interface value is only partial and does not correct. For now, summary stats api only gets the eth0 network interface values.

The original issues about this can be find in [Heapster #1058](https://github.com/kubernetes/heapster/issues/1058) and [Cadvisor #1593](https://github.com/google/cadvisor/issues/1593).

```release-note
Fix stats summary network value when multiple network interfaces are available.
```

/cc @DirectXMan12 @piosz @xiangpengzhao @vishh @timstclair
2017-11-28 14:59:08 -08:00

617 lines
21 KiB
Go

/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package stats
import (
"fmt"
"testing"
"time"
cadvisorapiv1 "github.com/google/cadvisor/info/v1"
cadvisorapiv2 "github.com/google/cadvisor/info/v2"
fuzz "github.com/google/gofuzz"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
statsapi "k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1"
cadvisortest "k8s.io/kubernetes/pkg/kubelet/cadvisor/testing"
kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
kubecontainertest "k8s.io/kubernetes/pkg/kubelet/container/testing"
kubepodtest "k8s.io/kubernetes/pkg/kubelet/pod/testing"
serverstats "k8s.io/kubernetes/pkg/kubelet/server/stats"
kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
)
const (
// Offsets from seed value in generated container stats.
offsetCPUUsageCores = iota
offsetCPUUsageCoreSeconds
offsetMemPageFaults
offsetMemMajorPageFaults
offsetMemUsageBytes
offsetMemRSSBytes
offsetMemWorkingSetBytes
offsetNetRxBytes
offsetNetRxErrors
offsetNetTxBytes
offsetNetTxErrors
offsetFsCapacity
offsetFsAvailable
offsetFsUsage
offsetFsInodes
offsetFsInodesFree
offsetFsTotalUsageBytes
offsetFsBaseUsageBytes
offsetFsInodeUsage
offsetVolume
)
var (
timestamp = time.Now()
creationTime = timestamp.Add(-5 * time.Minute)
)
func TestGetCgroupStats(t *testing.T) {
const (
cgroupName = "test-cgroup-name"
containerInfoSeed = 1000
)
var (
mockCadvisor = new(cadvisortest.Mock)
mockPodManager = new(kubepodtest.MockManager)
mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
assert = assert.New(t)
options = cadvisorapiv2.RequestOptions{IdType: cadvisorapiv2.TypeName, Count: 2, Recursive: false}
containerInfo = getTestContainerInfo(containerInfoSeed, "test-pod", "test-ns", "test-container")
containerInfoMap = map[string]cadvisorapiv2.ContainerInfo{cgroupName: containerInfo}
)
mockCadvisor.On("ContainerInfoV2", cgroupName, options).Return(containerInfoMap, nil)
provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{})
cs, ns, err := provider.GetCgroupStats(cgroupName)
assert.NoError(err)
checkCPUStats(t, "", containerInfoSeed, cs.CPU)
checkMemoryStats(t, "", containerInfoSeed, containerInfo, cs.Memory)
checkNetworkStats(t, "", containerInfoSeed, ns)
assert.Equal(cgroupName, cs.Name)
assert.Equal(metav1.NewTime(containerInfo.Spec.CreationTime), cs.StartTime)
mockCadvisor.AssertExpectations(t)
}
func TestRootFsStats(t *testing.T) {
const (
rootFsInfoSeed = 1000
containerInfoSeed = 2000
)
var (
mockCadvisor = new(cadvisortest.Mock)
mockPodManager = new(kubepodtest.MockManager)
mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
assert = assert.New(t)
options = cadvisorapiv2.RequestOptions{IdType: cadvisorapiv2.TypeName, Count: 2, Recursive: false}
rootFsInfo = getTestFsInfo(rootFsInfoSeed)
containerInfo = getTestContainerInfo(containerInfoSeed, "test-pod", "test-ns", "test-container")
containerInfoMap = map[string]cadvisorapiv2.ContainerInfo{"/": containerInfo}
)
mockCadvisor.
On("RootFsInfo").Return(rootFsInfo, nil).
On("ContainerInfoV2", "/", options).Return(containerInfoMap, nil)
provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{})
stats, err := provider.RootFsStats()
assert.NoError(err)
checkFsStats(t, "", rootFsInfoSeed, stats)
assert.Equal(metav1.NewTime(containerInfo.Stats[0].Timestamp), stats.Time)
assert.Equal(rootFsInfo.Usage, *stats.UsedBytes)
assert.Equal(*rootFsInfo.Inodes-*rootFsInfo.InodesFree, *stats.InodesUsed)
mockCadvisor.AssertExpectations(t)
}
func TestGetContainerInfo(t *testing.T) {
cadvisorAPIFailure := fmt.Errorf("cAdvisor failure")
runtimeError := fmt.Errorf("List containers error")
tests := []struct {
name string
containerID string
containerPath string
cadvisorContainerInfo cadvisorapiv1.ContainerInfo
runtimeError error
podList []*kubecontainer.Pod
requestedPodFullName string
requestedPodUID types.UID
requestedContainerName string
expectDockerContainerCall bool
mockError error
expectedError error
expectStats bool
}{
{
name: "get container info",
containerID: "ab2cdf",
containerPath: "/docker/ab2cdf",
cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{
ContainerReference: cadvisorapiv1.ContainerReference{
Name: "/docker/ab2cdf",
},
},
runtimeError: nil,
podList: []*kubecontainer.Pod{
{
ID: "12345678",
Name: "qux",
Namespace: "ns",
Containers: []*kubecontainer.Container{
{
Name: "foo",
ID: kubecontainer.ContainerID{Type: "test", ID: "ab2cdf"},
},
},
},
},
requestedPodFullName: "qux_ns",
requestedPodUID: "",
requestedContainerName: "foo",
expectDockerContainerCall: true,
mockError: nil,
expectedError: nil,
expectStats: true,
},
{
name: "get container info when cadvisor failed",
containerID: "ab2cdf",
containerPath: "/docker/ab2cdf",
cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{},
runtimeError: nil,
podList: []*kubecontainer.Pod{
{
ID: "uuid",
Name: "qux",
Namespace: "ns",
Containers: []*kubecontainer.Container{
{
Name: "foo",
ID: kubecontainer.ContainerID{Type: "test", ID: "ab2cdf"},
},
},
},
},
requestedPodFullName: "qux_ns",
requestedPodUID: "uuid",
requestedContainerName: "foo",
expectDockerContainerCall: true,
mockError: cadvisorAPIFailure,
expectedError: cadvisorAPIFailure,
expectStats: false,
},
{
name: "get container info on non-existent container",
containerID: "",
containerPath: "",
cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{},
runtimeError: nil,
podList: []*kubecontainer.Pod{},
requestedPodFullName: "qux",
requestedPodUID: "",
requestedContainerName: "foo",
expectDockerContainerCall: false,
mockError: nil,
expectedError: kubecontainer.ErrContainerNotFound,
expectStats: false,
},
{
name: "get container info when container runtime failed",
containerID: "",
containerPath: "",
cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{},
runtimeError: runtimeError,
podList: []*kubecontainer.Pod{},
requestedPodFullName: "qux",
requestedPodUID: "",
requestedContainerName: "foo",
mockError: nil,
expectedError: runtimeError,
expectStats: false,
},
{
name: "get container info with no containers",
containerID: "",
containerPath: "",
cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{},
runtimeError: nil,
podList: []*kubecontainer.Pod{},
requestedPodFullName: "qux_ns",
requestedPodUID: "",
requestedContainerName: "foo",
mockError: nil,
expectedError: kubecontainer.ErrContainerNotFound,
expectStats: false,
},
{
name: "get container info with no matching containers",
containerID: "",
containerPath: "",
cadvisorContainerInfo: cadvisorapiv1.ContainerInfo{},
runtimeError: nil,
podList: []*kubecontainer.Pod{
{
ID: "12345678",
Name: "qux",
Namespace: "ns",
Containers: []*kubecontainer.Container{
{
Name: "bar",
ID: kubecontainer.ContainerID{Type: "test", ID: "fakeID"},
},
},
},
},
requestedPodFullName: "qux_ns",
requestedPodUID: "",
requestedContainerName: "foo",
mockError: nil,
expectedError: kubecontainer.ErrContainerNotFound,
expectStats: false,
},
}
for _, tc := range tests {
var (
mockCadvisor = new(cadvisortest.Mock)
mockPodManager = new(kubepodtest.MockManager)
mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
cadvisorReq = &cadvisorapiv1.ContainerInfoRequest{}
)
mockPodManager.On("TranslatePodUID", tc.requestedPodUID).Return(kubetypes.ResolvedPodUID(tc.requestedPodUID))
mockRuntimeCache.On("GetPods").Return(tc.podList, tc.runtimeError)
if tc.expectDockerContainerCall {
mockCadvisor.On("DockerContainer", tc.containerID, cadvisorReq).Return(tc.cadvisorContainerInfo, tc.mockError)
}
provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{})
stats, err := provider.GetContainerInfo(tc.requestedPodFullName, tc.requestedPodUID, tc.requestedContainerName, cadvisorReq)
assert.Equal(t, tc.expectedError, err)
if tc.expectStats {
require.NotNil(t, stats)
}
mockCadvisor.AssertExpectations(t)
}
}
func TestGetRawContainerInfoRoot(t *testing.T) {
var (
mockCadvisor = new(cadvisortest.Mock)
mockPodManager = new(kubepodtest.MockManager)
mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
cadvisorReq = &cadvisorapiv1.ContainerInfoRequest{}
containerPath = "/"
containerInfo = &cadvisorapiv1.ContainerInfo{
ContainerReference: cadvisorapiv1.ContainerReference{
Name: containerPath,
},
}
)
mockCadvisor.On("ContainerInfo", containerPath, cadvisorReq).Return(containerInfo, nil)
provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{})
_, err := provider.GetRawContainerInfo(containerPath, cadvisorReq, false)
assert.NoError(t, err)
mockCadvisor.AssertExpectations(t)
}
func TestGetRawContainerInfoSubcontainers(t *testing.T) {
var (
mockCadvisor = new(cadvisortest.Mock)
mockPodManager = new(kubepodtest.MockManager)
mockRuntimeCache = new(kubecontainertest.MockRuntimeCache)
cadvisorReq = &cadvisorapiv1.ContainerInfoRequest{}
containerPath = "/kubelet"
containerInfo = map[string]*cadvisorapiv1.ContainerInfo{
containerPath: {
ContainerReference: cadvisorapiv1.ContainerReference{
Name: containerPath,
},
},
"/kubelet/sub": {
ContainerReference: cadvisorapiv1.ContainerReference{
Name: "/kubelet/sub",
},
},
}
)
mockCadvisor.On("SubcontainerInfo", containerPath, cadvisorReq).Return(containerInfo, nil)
provider := newStatsProvider(mockCadvisor, mockPodManager, mockRuntimeCache, fakeContainerStatsProvider{})
result, err := provider.GetRawContainerInfo(containerPath, cadvisorReq, true)
assert.NoError(t, err)
assert.Len(t, result, 2)
mockCadvisor.AssertExpectations(t)
}
func getTerminatedContainerInfo(seed int, podName string, podNamespace string, containerName string) cadvisorapiv2.ContainerInfo {
cinfo := getTestContainerInfo(seed, podName, podNamespace, containerName)
cinfo.Stats[0].Memory.RSS = 0
cinfo.Stats[0].CpuInst.Usage.Total = 0
return cinfo
}
func getTestContainerInfo(seed int, podName string, podNamespace string, containerName string) cadvisorapiv2.ContainerInfo {
labels := map[string]string{}
if podName != "" {
labels = map[string]string{
"io.kubernetes.pod.name": podName,
"io.kubernetes.pod.uid": "UID" + podName,
"io.kubernetes.pod.namespace": podNamespace,
"io.kubernetes.container.name": containerName,
}
}
// by default, kernel will set memory.limit_in_bytes to 1 << 63 if not bounded
unlimitedMemory := uint64(1 << 63)
spec := cadvisorapiv2.ContainerSpec{
CreationTime: testTime(creationTime, seed),
HasCpu: true,
HasMemory: true,
HasNetwork: true,
Labels: labels,
Memory: cadvisorapiv2.MemorySpec{
Limit: unlimitedMemory,
},
CustomMetrics: generateCustomMetricSpec(),
}
totalUsageBytes := uint64(seed + offsetFsTotalUsageBytes)
baseUsageBytes := uint64(seed + offsetFsBaseUsageBytes)
inodeUsage := uint64(seed + offsetFsInodeUsage)
stats := cadvisorapiv2.ContainerStats{
Timestamp: testTime(timestamp, seed),
Cpu: &cadvisorapiv1.CpuStats{},
CpuInst: &cadvisorapiv2.CpuInstStats{},
Memory: &cadvisorapiv1.MemoryStats{
Usage: uint64(seed + offsetMemUsageBytes),
WorkingSet: uint64(seed + offsetMemWorkingSetBytes),
RSS: uint64(seed + offsetMemRSSBytes),
ContainerData: cadvisorapiv1.MemoryStatsMemoryData{
Pgfault: uint64(seed + offsetMemPageFaults),
Pgmajfault: uint64(seed + offsetMemMajorPageFaults),
},
},
Network: &cadvisorapiv2.NetworkStats{
Interfaces: []cadvisorapiv1.InterfaceStats{{
Name: "eth0",
RxBytes: uint64(seed + offsetNetRxBytes),
RxErrors: uint64(seed + offsetNetRxErrors),
TxBytes: uint64(seed + offsetNetTxBytes),
TxErrors: uint64(seed + offsetNetTxErrors),
}, {
Name: "cbr0",
RxBytes: 100,
RxErrors: 100,
TxBytes: 100,
TxErrors: 100,
}},
},
CustomMetrics: generateCustomMetrics(spec.CustomMetrics),
Filesystem: &cadvisorapiv2.FilesystemStats{
TotalUsageBytes: &totalUsageBytes,
BaseUsageBytes: &baseUsageBytes,
InodeUsage: &inodeUsage,
},
}
stats.Cpu.Usage.Total = uint64(seed + offsetCPUUsageCoreSeconds)
stats.CpuInst.Usage.Total = uint64(seed + offsetCPUUsageCores)
return cadvisorapiv2.ContainerInfo{
Spec: spec,
Stats: []*cadvisorapiv2.ContainerStats{&stats},
}
}
func getTestFsInfo(seed int) cadvisorapiv2.FsInfo {
var (
inodes = uint64(seed + offsetFsInodes)
inodesFree = uint64(seed + offsetFsInodesFree)
)
return cadvisorapiv2.FsInfo{
Timestamp: time.Now(),
Device: "test-device",
Mountpoint: "test-mount-point",
Capacity: uint64(seed + offsetFsCapacity),
Available: uint64(seed + offsetFsAvailable),
Usage: uint64(seed + offsetFsUsage),
Inodes: &inodes,
InodesFree: &inodesFree,
}
}
func getPodVolumeStats(seed int, volumeName string) statsapi.VolumeStats {
availableBytes := uint64(seed + offsetFsAvailable)
capacityBytes := uint64(seed + offsetFsCapacity)
usedBytes := uint64(seed + offsetFsUsage)
inodes := uint64(seed + offsetFsInodes)
inodesFree := uint64(seed + offsetFsInodesFree)
inodesUsed := uint64(seed + offsetFsInodeUsage)
fsStats := statsapi.FsStats{
Time: metav1.NewTime(time.Now()),
AvailableBytes: &availableBytes,
CapacityBytes: &capacityBytes,
UsedBytes: &usedBytes,
Inodes: &inodes,
InodesFree: &inodesFree,
InodesUsed: &inodesUsed,
}
return statsapi.VolumeStats{
FsStats: fsStats,
Name: volumeName,
}
}
func generateCustomMetricSpec() []cadvisorapiv1.MetricSpec {
f := fuzz.New().NilChance(0).Funcs(
func(e *cadvisorapiv1.MetricSpec, c fuzz.Continue) {
c.Fuzz(&e.Name)
switch c.Intn(3) {
case 0:
e.Type = cadvisorapiv1.MetricGauge
case 1:
e.Type = cadvisorapiv1.MetricCumulative
case 2:
e.Type = cadvisorapiv1.MetricDelta
}
switch c.Intn(2) {
case 0:
e.Format = cadvisorapiv1.IntType
case 1:
e.Format = cadvisorapiv1.FloatType
}
c.Fuzz(&e.Units)
})
var ret []cadvisorapiv1.MetricSpec
f.Fuzz(&ret)
return ret
}
func generateCustomMetrics(spec []cadvisorapiv1.MetricSpec) map[string][]cadvisorapiv1.MetricVal {
ret := map[string][]cadvisorapiv1.MetricVal{}
for _, metricSpec := range spec {
f := fuzz.New().NilChance(0).Funcs(
func(e *cadvisorapiv1.MetricVal, c fuzz.Continue) {
switch metricSpec.Format {
case cadvisorapiv1.IntType:
c.Fuzz(&e.IntValue)
case cadvisorapiv1.FloatType:
c.Fuzz(&e.FloatValue)
}
})
var metrics []cadvisorapiv1.MetricVal
f.Fuzz(&metrics)
ret[metricSpec.Name] = metrics
}
return ret
}
func testTime(base time.Time, seed int) time.Time {
return base.Add(time.Duration(seed) * time.Second)
}
func checkNetworkStats(t *testing.T, label string, seed int, stats *statsapi.NetworkStats) {
assert.NotNil(t, stats)
assert.EqualValues(t, testTime(timestamp, seed).Unix(), stats.Time.Time.Unix(), label+".Net.Time")
assert.EqualValues(t, "eth0", stats.Name, "default interface name is not eth0")
assert.EqualValues(t, seed+offsetNetRxBytes, *stats.RxBytes, label+".Net.RxBytes")
assert.EqualValues(t, seed+offsetNetRxErrors, *stats.RxErrors, label+".Net.RxErrors")
assert.EqualValues(t, seed+offsetNetTxBytes, *stats.TxBytes, label+".Net.TxBytes")
assert.EqualValues(t, seed+offsetNetTxErrors, *stats.TxErrors, label+".Net.TxErrors")
assert.EqualValues(t, 2, len(stats.Interfaces), "network interfaces should contain 2 elements")
assert.EqualValues(t, "eth0", stats.Interfaces[0].Name, "default interface name is ont eth0")
assert.EqualValues(t, seed+offsetNetRxBytes, *stats.Interfaces[0].RxBytes, label+".Net.TxErrors")
assert.EqualValues(t, seed+offsetNetRxErrors, *stats.Interfaces[0].RxErrors, label+".Net.TxErrors")
assert.EqualValues(t, seed+offsetNetTxBytes, *stats.Interfaces[0].TxBytes, label+".Net.TxErrors")
assert.EqualValues(t, seed+offsetNetTxErrors, *stats.Interfaces[0].TxErrors, label+".Net.TxErrors")
assert.EqualValues(t, "cbr0", stats.Interfaces[1].Name, "cbr0 interface name is ont cbr0")
assert.EqualValues(t, 100, *stats.Interfaces[1].RxBytes, label+".Net.TxErrors")
assert.EqualValues(t, 100, *stats.Interfaces[1].RxErrors, label+".Net.TxErrors")
assert.EqualValues(t, 100, *stats.Interfaces[1].TxBytes, label+".Net.TxErrors")
assert.EqualValues(t, 100, *stats.Interfaces[1].TxErrors, label+".Net.TxErrors")
}
func checkCPUStats(t *testing.T, label string, seed int, stats *statsapi.CPUStats) {
assert.EqualValues(t, testTime(timestamp, seed).Unix(), stats.Time.Time.Unix(), label+".CPU.Time")
assert.EqualValues(t, seed+offsetCPUUsageCores, *stats.UsageNanoCores, label+".CPU.UsageCores")
assert.EqualValues(t, seed+offsetCPUUsageCoreSeconds, *stats.UsageCoreNanoSeconds, label+".CPU.UsageCoreSeconds")
}
func checkMemoryStats(t *testing.T, label string, seed int, info cadvisorapiv2.ContainerInfo, stats *statsapi.MemoryStats) {
assert.EqualValues(t, testTime(timestamp, seed).Unix(), stats.Time.Time.Unix(), label+".Mem.Time")
assert.EqualValues(t, seed+offsetMemUsageBytes, *stats.UsageBytes, label+".Mem.UsageBytes")
assert.EqualValues(t, seed+offsetMemWorkingSetBytes, *stats.WorkingSetBytes, label+".Mem.WorkingSetBytes")
assert.EqualValues(t, seed+offsetMemRSSBytes, *stats.RSSBytes, label+".Mem.RSSBytes")
assert.EqualValues(t, seed+offsetMemPageFaults, *stats.PageFaults, label+".Mem.PageFaults")
assert.EqualValues(t, seed+offsetMemMajorPageFaults, *stats.MajorPageFaults, label+".Mem.MajorPageFaults")
if !info.Spec.HasMemory || isMemoryUnlimited(info.Spec.Memory.Limit) {
assert.Nil(t, stats.AvailableBytes, label+".Mem.AvailableBytes")
} else {
expected := info.Spec.Memory.Limit - *stats.WorkingSetBytes
assert.EqualValues(t, expected, *stats.AvailableBytes, label+".Mem.AvailableBytes")
}
}
func checkFsStats(t *testing.T, label string, seed int, stats *statsapi.FsStats) {
assert.EqualValues(t, seed+offsetFsCapacity, *stats.CapacityBytes, label+".CapacityBytes")
assert.EqualValues(t, seed+offsetFsAvailable, *stats.AvailableBytes, label+".AvailableBytes")
assert.EqualValues(t, seed+offsetFsInodes, *stats.Inodes, label+".Inodes")
assert.EqualValues(t, seed+offsetFsInodesFree, *stats.InodesFree, label+".InodesFree")
}
func checkEphemeralStats(t *testing.T, label string, containerSeeds []int, volumeSeeds []int, stats *statsapi.FsStats) {
var usedBytes, inodeUsage int
for _, cseed := range containerSeeds {
usedBytes = usedBytes + cseed + offsetFsTotalUsageBytes
inodeUsage += cseed + offsetFsInodeUsage
}
for _, vseed := range volumeSeeds {
usedBytes = usedBytes + vseed + offsetFsUsage
inodeUsage += vseed + offsetFsInodeUsage
}
assert.EqualValues(t, usedBytes, int(*stats.UsedBytes), label+".UsedBytes")
assert.EqualValues(t, inodeUsage, int(*stats.InodesUsed), label+".InodesUsed")
}
type fakeResourceAnalyzer struct {
podVolumeStats serverstats.PodVolumeStats
}
func (o *fakeResourceAnalyzer) Start() {}
func (o *fakeResourceAnalyzer) Get() (*statsapi.Summary, error) { return nil, nil }
func (o *fakeResourceAnalyzer) GetPodVolumeStats(uid types.UID) (serverstats.PodVolumeStats, bool) {
return o.podVolumeStats, true
}
type fakeContainerStatsProvider struct {
}
func (p fakeContainerStatsProvider) ListPodStats() ([]statsapi.PodStats, error) {
return nil, fmt.Errorf("not implemented")
}
func (p fakeContainerStatsProvider) ImageFsStats() (*statsapi.FsStats, error) {
return nil, fmt.Errorf("not implemented")
}