Merge pull request #64170 from mtaufen/cap-node-num-images
Automatic merge from submit-queue (batch tested with PRs 61803, 64305, 64170, 64361, 64339). 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>. add a flag to control the cap on images reported in node status While I normally try to avoid adding flags, this is a short term scalability fix for v1.11, and there are other long-term solutions in the works, so we shouldn't commit to this in the v1beta1 Kubelet config. Flags are our escape hatch here. ```release-note NONE ```
This commit is contained in:
Kubernetes Submit Queue
@@ -60,8 +60,8 @@ const (
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maxImageTagsForTest = 20
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)
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// generateTestingImageList generate randomly generated image list and corresponding expectedImageList.
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func generateTestingImageList(count int) ([]kubecontainer.Image, []v1.ContainerImage) {
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// generateTestingImageLists generate randomly generated image list and corresponding expectedImageList.
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func generateTestingImageLists(count int, maxImages int) ([]kubecontainer.Image, []v1.ContainerImage) {
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// imageList is randomly generated image list
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var imageList []kubecontainer.Image
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for ; count > 0; count-- {
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@@ -73,7 +73,12 @@ func generateTestingImageList(count int) ([]kubecontainer.Image, []v1.ContainerI
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imageList = append(imageList, imageItem)
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}
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// expectedImageList is generated by imageList according to size and maxImagesInNodeStatus
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expectedImageList := makeExpectedImageList(imageList, maxImages)
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return imageList, expectedImageList
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}
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func makeExpectedImageList(imageList []kubecontainer.Image, maxImages int) []v1.ContainerImage {
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// expectedImageList is generated by imageList according to size and maxImages
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// 1. sort the imageList by size
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sort.Sort(sliceutils.ByImageSize(imageList))
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// 2. convert sorted imageList to v1.ContainerImage list
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@@ -86,8 +91,11 @@ func generateTestingImageList(count int) ([]kubecontainer.Image, []v1.ContainerI
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expectedImageList = append(expectedImageList, apiImage)
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}
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// 3. only returns the top maxImagesInNodeStatus images in expectedImageList
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return imageList, expectedImageList[0:maxImagesInNodeStatus]
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// 3. only returns the top maxImages images in expectedImageList
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if maxImages == -1 { // -1 means no limit
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return expectedImageList
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}
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return expectedImageList[0:maxImages]
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}
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func generateImageTags() []string {
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@@ -299,165 +307,190 @@ func sortNodeAddresses(addrs sortableNodeAddress) {
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}
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func TestUpdateNewNodeStatus(t *testing.T) {
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// generate one more than maxImagesInNodeStatus in inputImageList
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inputImageList, expectedImageList := generateTestingImageList(maxImagesInNodeStatus + 1)
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testKubelet := newTestKubeletWithImageList(
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t, inputImageList, false /* controllerAttachDetachEnabled */)
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defer testKubelet.Cleanup()
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kubelet := testKubelet.kubelet
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kubelet.kubeClient = nil // ensure only the heartbeat client is used
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kubelet.containerManager = &localCM{
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ContainerManager: cm.NewStubContainerManager(),
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allocatableReservation: v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(200, resource.DecimalSI),
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v1.ResourceMemory: *resource.NewQuantity(100E6, resource.BinarySI),
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v1.ResourceEphemeralStorage: *resource.NewQuantity(2000, resource.BinarySI),
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cases := []struct {
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desc string
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nodeStatusMaxImages int32
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}{
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{
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desc: "5 image limit",
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nodeStatusMaxImages: 5,
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},
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capacity: v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
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v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
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v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
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},
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}
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kubeClient := testKubelet.fakeKubeClient
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existingNode := v1.Node{ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname}}
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kubeClient.ReactionChain = fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{existingNode}}).ReactionChain
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machineInfo := &cadvisorapi.MachineInfo{
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MachineID: "123",
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SystemUUID: "abc",
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BootID: "1b3",
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NumCores: 2,
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MemoryCapacity: 10E9, // 10G
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}
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mockCadvisor := testKubelet.fakeCadvisor
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mockCadvisor.On("Start").Return(nil)
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mockCadvisor.On("MachineInfo").Return(machineInfo, nil)
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versionInfo := &cadvisorapi.VersionInfo{
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KernelVersion: "3.16.0-0.bpo.4-amd64",
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ContainerOsVersion: "Debian GNU/Linux 7 (wheezy)",
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}
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mockCadvisor.On("ImagesFsInfo").Return(cadvisorapiv2.FsInfo{
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Usage: 400,
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Capacity: 5000,
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Available: 600,
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}, nil)
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mockCadvisor.On("RootFsInfo").Return(cadvisorapiv2.FsInfo{
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Usage: 400,
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Capacity: 5000,
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Available: 600,
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}, nil)
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mockCadvisor.On("VersionInfo").Return(versionInfo, nil)
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maxAge := 0 * time.Second
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options := cadvisorapiv2.RequestOptions{IdType: cadvisorapiv2.TypeName, Count: 2, Recursive: false, MaxAge: &maxAge}
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mockCadvisor.On("ContainerInfoV2", "/", options).Return(map[string]cadvisorapiv2.ContainerInfo{}, nil)
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kubelet.machineInfo = machineInfo
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expectedNode := &v1.Node{
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ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname},
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Spec: v1.NodeSpec{},
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Status: v1.NodeStatus{
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Conditions: []v1.NodeCondition{
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{
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Type: v1.NodeOutOfDisk,
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Status: v1.ConditionFalse,
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Reason: "KubeletHasSufficientDisk",
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Message: fmt.Sprintf("kubelet has sufficient disk space available"),
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LastHeartbeatTime: metav1.Time{},
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LastTransitionTime: metav1.Time{},
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},
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{
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Type: v1.NodeMemoryPressure,
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Status: v1.ConditionFalse,
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Reason: "KubeletHasSufficientMemory",
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Message: fmt.Sprintf("kubelet has sufficient memory available"),
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LastHeartbeatTime: metav1.Time{},
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LastTransitionTime: metav1.Time{},
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},
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{
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Type: v1.NodeDiskPressure,
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Status: v1.ConditionFalse,
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Reason: "KubeletHasNoDiskPressure",
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Message: fmt.Sprintf("kubelet has no disk pressure"),
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LastHeartbeatTime: metav1.Time{},
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LastTransitionTime: metav1.Time{},
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},
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{
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Type: v1.NodePIDPressure,
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Status: v1.ConditionFalse,
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Reason: "KubeletHasSufficientPID",
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Message: fmt.Sprintf("kubelet has sufficient PID available"),
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LastHeartbeatTime: metav1.Time{},
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LastTransitionTime: metav1.Time{},
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},
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{
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Type: v1.NodeReady,
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Status: v1.ConditionTrue,
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Reason: "KubeletReady",
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Message: fmt.Sprintf("kubelet is posting ready status"),
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LastHeartbeatTime: metav1.Time{},
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LastTransitionTime: metav1.Time{},
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},
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},
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NodeInfo: v1.NodeSystemInfo{
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MachineID: "123",
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SystemUUID: "abc",
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BootID: "1b3",
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KernelVersion: "3.16.0-0.bpo.4-amd64",
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OSImage: "Debian GNU/Linux 7 (wheezy)",
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OperatingSystem: goruntime.GOOS,
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Architecture: goruntime.GOARCH,
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ContainerRuntimeVersion: "test://1.5.0",
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KubeletVersion: version.Get().String(),
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KubeProxyVersion: version.Get().String(),
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},
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Capacity: v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
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v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
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v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
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v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
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},
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Allocatable: v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(1800, resource.DecimalSI),
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v1.ResourceMemory: *resource.NewQuantity(9900E6, resource.BinarySI),
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v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
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v1.ResourceEphemeralStorage: *resource.NewQuantity(3000, resource.BinarySI),
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},
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Addresses: []v1.NodeAddress{
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{Type: v1.NodeInternalIP, Address: "127.0.0.1"},
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{Type: v1.NodeHostName, Address: testKubeletHostname},
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},
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Images: expectedImageList,
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{
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desc: "no image limit",
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nodeStatusMaxImages: -1,
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},
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}
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kubelet.updateRuntimeUp()
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assert.NoError(t, kubelet.updateNodeStatus())
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actions := kubeClient.Actions()
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require.Len(t, actions, 2)
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require.True(t, actions[1].Matches("patch", "nodes"))
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require.Equal(t, actions[1].GetSubresource(), "status")
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for _, tc := range cases {
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t.Run(tc.desc, func(t *testing.T) {
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// generate one more in inputImageList than we configure the Kubelet to report,
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// or 5 images if unlimited
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numTestImages := int(tc.nodeStatusMaxImages) + 1
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if tc.nodeStatusMaxImages == -1 {
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numTestImages = 5
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}
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inputImageList, expectedImageList := generateTestingImageLists(numTestImages, int(tc.nodeStatusMaxImages))
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testKubelet := newTestKubeletWithImageList(
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t, inputImageList, false /* controllerAttachDetachEnabled */)
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defer testKubelet.Cleanup()
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kubelet := testKubelet.kubelet
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kubelet.nodeStatusMaxImages = tc.nodeStatusMaxImages
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kubelet.kubeClient = nil // ensure only the heartbeat client is used
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kubelet.containerManager = &localCM{
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ContainerManager: cm.NewStubContainerManager(),
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allocatableReservation: v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(200, resource.DecimalSI),
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v1.ResourceMemory: *resource.NewQuantity(100E6, resource.BinarySI),
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v1.ResourceEphemeralStorage: *resource.NewQuantity(2000, resource.BinarySI),
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},
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capacity: v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
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v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
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v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
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},
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}
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kubeClient := testKubelet.fakeKubeClient
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existingNode := v1.Node{ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname}}
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kubeClient.ReactionChain = fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{existingNode}}).ReactionChain
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machineInfo := &cadvisorapi.MachineInfo{
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MachineID: "123",
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SystemUUID: "abc",
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BootID: "1b3",
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NumCores: 2,
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MemoryCapacity: 10E9, // 10G
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}
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mockCadvisor := testKubelet.fakeCadvisor
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mockCadvisor.On("Start").Return(nil)
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mockCadvisor.On("MachineInfo").Return(machineInfo, nil)
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versionInfo := &cadvisorapi.VersionInfo{
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KernelVersion: "3.16.0-0.bpo.4-amd64",
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ContainerOsVersion: "Debian GNU/Linux 7 (wheezy)",
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}
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mockCadvisor.On("ImagesFsInfo").Return(cadvisorapiv2.FsInfo{
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Usage: 400,
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Capacity: 5000,
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Available: 600,
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}, nil)
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mockCadvisor.On("RootFsInfo").Return(cadvisorapiv2.FsInfo{
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Usage: 400,
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Capacity: 5000,
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Available: 600,
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}, nil)
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mockCadvisor.On("VersionInfo").Return(versionInfo, nil)
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maxAge := 0 * time.Second
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options := cadvisorapiv2.RequestOptions{IdType: cadvisorapiv2.TypeName, Count: 2, Recursive: false, MaxAge: &maxAge}
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mockCadvisor.On("ContainerInfoV2", "/", options).Return(map[string]cadvisorapiv2.ContainerInfo{}, nil)
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kubelet.machineInfo = machineInfo
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updatedNode, err := applyNodeStatusPatch(&existingNode, actions[1].(core.PatchActionImpl).GetPatch())
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assert.NoError(t, err)
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for i, cond := range updatedNode.Status.Conditions {
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assert.False(t, cond.LastHeartbeatTime.IsZero(), "LastHeartbeatTime for %v condition is zero", cond.Type)
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assert.False(t, cond.LastTransitionTime.IsZero(), "LastTransitionTime for %v condition is zero", cond.Type)
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updatedNode.Status.Conditions[i].LastHeartbeatTime = metav1.Time{}
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updatedNode.Status.Conditions[i].LastTransitionTime = metav1.Time{}
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expectedNode := &v1.Node{
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ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname},
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Spec: v1.NodeSpec{},
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Status: v1.NodeStatus{
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Conditions: []v1.NodeCondition{
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{
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Type: v1.NodeOutOfDisk,
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Status: v1.ConditionFalse,
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Reason: "KubeletHasSufficientDisk",
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Message: fmt.Sprintf("kubelet has sufficient disk space available"),
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LastHeartbeatTime: metav1.Time{},
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LastTransitionTime: metav1.Time{},
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},
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{
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Type: v1.NodeMemoryPressure,
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Status: v1.ConditionFalse,
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Reason: "KubeletHasSufficientMemory",
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Message: fmt.Sprintf("kubelet has sufficient memory available"),
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LastHeartbeatTime: metav1.Time{},
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LastTransitionTime: metav1.Time{},
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},
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{
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Type: v1.NodeDiskPressure,
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Status: v1.ConditionFalse,
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Reason: "KubeletHasNoDiskPressure",
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Message: fmt.Sprintf("kubelet has no disk pressure"),
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LastHeartbeatTime: metav1.Time{},
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LastTransitionTime: metav1.Time{},
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},
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{
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Type: v1.NodePIDPressure,
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Status: v1.ConditionFalse,
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Reason: "KubeletHasSufficientPID",
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Message: fmt.Sprintf("kubelet has sufficient PID available"),
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LastHeartbeatTime: metav1.Time{},
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LastTransitionTime: metav1.Time{},
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},
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{
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Type: v1.NodeReady,
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Status: v1.ConditionTrue,
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Reason: "KubeletReady",
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Message: fmt.Sprintf("kubelet is posting ready status"),
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LastHeartbeatTime: metav1.Time{},
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LastTransitionTime: metav1.Time{},
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},
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},
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NodeInfo: v1.NodeSystemInfo{
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MachineID: "123",
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SystemUUID: "abc",
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BootID: "1b3",
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KernelVersion: "3.16.0-0.bpo.4-amd64",
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OSImage: "Debian GNU/Linux 7 (wheezy)",
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OperatingSystem: goruntime.GOOS,
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Architecture: goruntime.GOARCH,
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ContainerRuntimeVersion: "test://1.5.0",
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KubeletVersion: version.Get().String(),
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KubeProxyVersion: version.Get().String(),
|
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},
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Capacity: v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
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v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
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v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
|
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v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
|
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},
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Allocatable: v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(1800, resource.DecimalSI),
|
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v1.ResourceMemory: *resource.NewQuantity(9900E6, resource.BinarySI),
|
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v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
|
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v1.ResourceEphemeralStorage: *resource.NewQuantity(3000, resource.BinarySI),
|
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},
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Addresses: []v1.NodeAddress{
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{Type: v1.NodeInternalIP, Address: "127.0.0.1"},
|
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{Type: v1.NodeHostName, Address: testKubeletHostname},
|
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},
|
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Images: expectedImageList,
|
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},
|
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}
|
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|
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kubelet.updateRuntimeUp()
|
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assert.NoError(t, kubelet.updateNodeStatus())
|
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actions := kubeClient.Actions()
|
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require.Len(t, actions, 2)
|
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require.True(t, actions[1].Matches("patch", "nodes"))
|
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require.Equal(t, actions[1].GetSubresource(), "status")
|
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|
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updatedNode, err := applyNodeStatusPatch(&existingNode, actions[1].(core.PatchActionImpl).GetPatch())
|
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assert.NoError(t, err)
|
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for i, cond := range updatedNode.Status.Conditions {
|
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assert.False(t, cond.LastHeartbeatTime.IsZero(), "LastHeartbeatTime for %v condition is zero", cond.Type)
|
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assert.False(t, cond.LastTransitionTime.IsZero(), "LastTransitionTime for %v condition is zero", cond.Type)
|
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updatedNode.Status.Conditions[i].LastHeartbeatTime = metav1.Time{}
|
||||
updatedNode.Status.Conditions[i].LastTransitionTime = metav1.Time{}
|
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}
|
||||
|
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// Version skew workaround. See: https://github.com/kubernetes/kubernetes/issues/16961
|
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assert.Equal(t, v1.NodeReady, updatedNode.Status.Conditions[len(updatedNode.Status.Conditions)-1].Type,
|
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"NotReady should be last")
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assert.Len(t, updatedNode.Status.Images, len(expectedImageList))
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assert.True(t, apiequality.Semantic.DeepEqual(expectedNode, updatedNode), "%s", diff.ObjectDiff(expectedNode, updatedNode))
|
||||
})
|
||||
}
|
||||
|
||||
// Version skew workaround. See: https://github.com/kubernetes/kubernetes/issues/16961
|
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assert.Equal(t, v1.NodeReady, updatedNode.Status.Conditions[len(updatedNode.Status.Conditions)-1].Type,
|
||||
"NotReady should be last")
|
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assert.Len(t, updatedNode.Status.Images, maxImagesInNodeStatus)
|
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assert.True(t, apiequality.Semantic.DeepEqual(expectedNode, updatedNode), "%s", diff.ObjectDiff(expectedNode, updatedNode))
|
||||
}
|
||||
|
||||
func TestUpdateExistingNodeStatus(t *testing.T) {
|
||||
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
||||
defer testKubelet.Cleanup()
|
||||
kubelet := testKubelet.kubelet
|
||||
kubelet.kubeClient = nil // ensure only the heartbeat client is used
|
||||
kubelet.nodeStatusMaxImages = 5 // don't truncate the image list that gets constructed by hand for this test
|
||||
kubelet.kubeClient = nil // ensure only the heartbeat client is used
|
||||
kubelet.containerManager = &localCM{
|
||||
ContainerManager: cm.NewStubContainerManager(),
|
||||
allocatableReservation: v1.ResourceList{
|
||||
@@ -742,7 +775,8 @@ func TestUpdateNodeStatusWithRuntimeStateError(t *testing.T) {
|
||||
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
||||
defer testKubelet.Cleanup()
|
||||
kubelet := testKubelet.kubelet
|
||||
kubelet.kubeClient = nil // ensure only the heartbeat client is used
|
||||
kubelet.nodeStatusMaxImages = 5 // don't truncate the image list that gets constructed by hand for this test
|
||||
kubelet.kubeClient = nil // ensure only the heartbeat client is used
|
||||
kubelet.containerManager = &localCM{
|
||||
ContainerManager: cm.NewStubContainerManager(),
|
||||
allocatableReservation: v1.ResourceList{
|
||||
@@ -1213,12 +1247,15 @@ func TestTryRegisterWithApiServer(t *testing.T) {
|
||||
}
|
||||
|
||||
func TestUpdateNewNodeStatusTooLargeReservation(t *testing.T) {
|
||||
// generate one more than maxImagesInNodeStatus in inputImageList
|
||||
inputImageList, _ := generateTestingImageList(maxImagesInNodeStatus + 1)
|
||||
const nodeStatusMaxImages = 5
|
||||
|
||||
// generate one more in inputImageList than we configure the Kubelet to report
|
||||
inputImageList, _ := generateTestingImageLists(nodeStatusMaxImages+1, nodeStatusMaxImages)
|
||||
testKubelet := newTestKubeletWithImageList(
|
||||
t, inputImageList, false /* controllerAttachDetachEnabled */)
|
||||
defer testKubelet.Cleanup()
|
||||
kubelet := testKubelet.kubelet
|
||||
kubelet.nodeStatusMaxImages = nodeStatusMaxImages
|
||||
kubelet.kubeClient = nil // ensure only the heartbeat client is used
|
||||
kubelet.containerManager = &localCM{
|
||||
ContainerManager: cm.NewStubContainerManager(),
|
||||
|
||||
Reference in New Issue
Block a user