mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
synced 2025-11-04 04:08:16 +00:00
1b7d06e025
This extends the Kubelet to create and periodically update leases in a new kube-node-lease namespace. Based on [KEP-0009](https://github.com/kubernetes/community/blob/master/keps/sig-node/0009-node-heartbeat.md), these leases can be used as a node health signal, and will allow us to reduce the load caused by over-frequent node status reporting. - add NodeLease feature gate - add kube-node-lease system namespace for node leases - add Kubelet option for lease duration - add Kubelet-internal lease controller to create and update lease - add e2e test for NodeLease feature - modify node authorizer and node restriction admission controller to allow Kubelets access to corresponding leases
1564 lines
57 KiB
Go
1564 lines
57 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kubelet
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import (
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"encoding/json"
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"fmt"
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"net"
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goruntime "runtime"
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"sort"
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"strconv"
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"sync/atomic"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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cadvisorapi "github.com/google/cadvisor/info/v1"
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"k8s.io/api/core/v1"
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apiequality "k8s.io/apimachinery/pkg/api/equality"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/diff"
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"k8s.io/apimachinery/pkg/util/rand"
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"k8s.io/apimachinery/pkg/util/strategicpatch"
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"k8s.io/apimachinery/pkg/util/uuid"
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"k8s.io/apimachinery/pkg/util/wait"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/client-go/kubernetes/fake"
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"k8s.io/client-go/rest"
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core "k8s.io/client-go/testing"
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"k8s.io/kubernetes/pkg/features"
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kubeletapis "k8s.io/kubernetes/pkg/kubelet/apis"
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cadvisortest "k8s.io/kubernetes/pkg/kubelet/cadvisor/testing"
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"k8s.io/kubernetes/pkg/kubelet/cm"
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kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
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"k8s.io/kubernetes/pkg/kubelet/nodestatus"
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"k8s.io/kubernetes/pkg/kubelet/util/sliceutils"
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"k8s.io/kubernetes/pkg/scheduler/algorithm"
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taintutil "k8s.io/kubernetes/pkg/util/taints"
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"k8s.io/kubernetes/pkg/version"
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"k8s.io/kubernetes/pkg/volume/util"
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)
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const (
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maxImageTagsForTest = 20
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)
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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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imageItem := kubecontainer.Image{
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ID: string(uuid.NewUUID()),
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RepoTags: generateImageTags(),
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Size: rand.Int63nRange(minImgSize, maxImgSize+1),
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}
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imageList = append(imageList, imageItem)
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}
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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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var expectedImageList []v1.ContainerImage
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for _, kubeImage := range imageList {
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apiImage := v1.ContainerImage{
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Names: kubeImage.RepoTags[0:nodestatus.MaxNamesPerImageInNodeStatus],
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SizeBytes: kubeImage.Size,
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}
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expectedImageList = append(expectedImageList, apiImage)
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}
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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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var tagList []string
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// Generate > MaxNamesPerImageInNodeStatus tags so that the test can verify
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// that kubelet report up to MaxNamesPerImageInNodeStatus tags.
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count := rand.IntnRange(nodestatus.MaxNamesPerImageInNodeStatus+1, maxImageTagsForTest+1)
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for ; count > 0; count-- {
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tagList = append(tagList, "k8s.gcr.io:v"+strconv.Itoa(count))
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}
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return tagList
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}
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func applyNodeStatusPatch(originalNode *v1.Node, patch []byte) (*v1.Node, error) {
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original, err := json.Marshal(originalNode)
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if err != nil {
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return nil, fmt.Errorf("failed to marshal original node %#v: %v", originalNode, err)
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}
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updated, err := strategicpatch.StrategicMergePatch(original, patch, v1.Node{})
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if err != nil {
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return nil, fmt.Errorf("failed to apply strategic merge patch %q on node %#v: %v",
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patch, originalNode, err)
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}
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updatedNode := &v1.Node{}
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if err := json.Unmarshal(updated, updatedNode); err != nil {
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return nil, fmt.Errorf("failed to unmarshal updated node %q: %v", updated, err)
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}
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return updatedNode, nil
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}
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func notImplemented(action core.Action) (bool, runtime.Object, error) {
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return true, nil, fmt.Errorf("no reaction implemented for %s", action)
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}
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func addNotImplatedReaction(kubeClient *fake.Clientset) {
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if kubeClient == nil {
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return
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}
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kubeClient.AddReactor("*", "*", notImplemented)
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}
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type localCM struct {
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cm.ContainerManager
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allocatableReservation v1.ResourceList
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capacity v1.ResourceList
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}
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func (lcm *localCM) GetNodeAllocatableReservation() v1.ResourceList {
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return lcm.allocatableReservation
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}
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func (lcm *localCM) GetCapacity() v1.ResourceList {
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return lcm.capacity
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}
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// sortableNodeAddress is a type for sorting []v1.NodeAddress
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type sortableNodeAddress []v1.NodeAddress
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func (s sortableNodeAddress) Len() int { return len(s) }
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func (s sortableNodeAddress) Less(i, j int) bool {
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return (string(s[i].Type) + s[i].Address) < (string(s[j].Type) + s[j].Address)
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}
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func (s sortableNodeAddress) Swap(i, j int) { s[j], s[i] = s[i], s[j] }
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func sortNodeAddresses(addrs sortableNodeAddress) {
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sort.Sort(addrs)
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}
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func TestUpdateNewNodeStatus(t *testing.T) {
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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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{
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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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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 */, true /*initFakeVolumePlugin*/)
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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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// Since this test retroactively overrides the stub container manager,
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// we have to regenerate default status setters.
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kubelet.setNodeStatusFuncs = kubelet.defaultNodeStatusFuncs()
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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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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: cadvisortest.FakeKernelVersion,
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OSImage: cadvisortest.FakeContainerOsVersion,
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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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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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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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}
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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))
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})
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}
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}
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func TestUpdateExistingNodeStatus(t *testing.T) {
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testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
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defer testKubelet.Cleanup()
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kubelet := testKubelet.kubelet
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kubelet.nodeStatusMaxImages = 5 // don't truncate the image list that gets constructed by hand for this test
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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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},
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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(20E9, 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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// Since this test retroactively overrides the stub container manager,
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// we have to regenerate default status setters.
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kubelet.setNodeStatusFuncs = kubelet.defaultNodeStatusFuncs()
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kubeClient := testKubelet.fakeKubeClient
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existingNode := 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.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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LastTransitionTime: metav1.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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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.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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LastTransitionTime: metav1.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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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: "KubeletHasSufficientDisk",
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Message: fmt.Sprintf("kubelet has sufficient disk space available"),
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LastHeartbeatTime: metav1.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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LastTransitionTime: metav1.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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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.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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LastTransitionTime: metav1.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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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.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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LastTransitionTime: metav1.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
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},
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},
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Capacity: v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(3000, resource.DecimalSI),
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v1.ResourceMemory: *resource.NewQuantity(20E9, resource.BinarySI),
|
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v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
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},
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Allocatable: v1.ResourceList{
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v1.ResourceCPU: *resource.NewMilliQuantity(2800, resource.DecimalSI),
|
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v1.ResourceMemory: *resource.NewQuantity(19900E6, resource.BinarySI),
|
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v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
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},
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},
|
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}
|
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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: 20E9,
|
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}
|
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kubelet.machineInfo = machineInfo
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|
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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,
|
|
Reason: "KubeletHasSufficientDisk",
|
|
Message: fmt.Sprintf("kubelet has sufficient disk space available"),
|
|
LastHeartbeatTime: metav1.Time{},
|
|
LastTransitionTime: metav1.Time{},
|
|
},
|
|
{
|
|
Type: v1.NodeMemoryPressure,
|
|
Status: v1.ConditionFalse,
|
|
Reason: "KubeletHasSufficientMemory",
|
|
Message: fmt.Sprintf("kubelet has sufficient memory available"),
|
|
LastHeartbeatTime: metav1.Time{},
|
|
LastTransitionTime: metav1.Time{},
|
|
},
|
|
{
|
|
Type: v1.NodeDiskPressure,
|
|
Status: v1.ConditionFalse,
|
|
Reason: "KubeletHasSufficientDisk",
|
|
Message: fmt.Sprintf("kubelet has sufficient disk space available"),
|
|
LastHeartbeatTime: metav1.Time{},
|
|
LastTransitionTime: metav1.Time{},
|
|
},
|
|
{
|
|
Type: v1.NodePIDPressure,
|
|
Status: v1.ConditionFalse,
|
|
Reason: "KubeletHasSufficientPID",
|
|
Message: fmt.Sprintf("kubelet has sufficient PID available"),
|
|
LastHeartbeatTime: metav1.Time{},
|
|
LastTransitionTime: metav1.Time{},
|
|
},
|
|
{
|
|
Type: v1.NodeReady,
|
|
Status: v1.ConditionTrue,
|
|
Reason: "KubeletReady",
|
|
Message: fmt.Sprintf("kubelet is posting ready status"),
|
|
LastHeartbeatTime: metav1.Time{}, // placeholder
|
|
LastTransitionTime: metav1.Time{}, // placeholder
|
|
},
|
|
},
|
|
NodeInfo: v1.NodeSystemInfo{
|
|
MachineID: "123",
|
|
SystemUUID: "abc",
|
|
BootID: "1b3",
|
|
KernelVersion: cadvisortest.FakeKernelVersion,
|
|
OSImage: cadvisortest.FakeContainerOsVersion,
|
|
OperatingSystem: goruntime.GOOS,
|
|
Architecture: goruntime.GOARCH,
|
|
ContainerRuntimeVersion: "test://1.5.0",
|
|
KubeletVersion: version.Get().String(),
|
|
KubeProxyVersion: version.Get().String(),
|
|
},
|
|
Capacity: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(20E9, resource.BinarySI),
|
|
v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
|
|
},
|
|
Allocatable: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(1800, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(19900E6, resource.BinarySI),
|
|
v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
|
|
},
|
|
Addresses: []v1.NodeAddress{
|
|
{Type: v1.NodeInternalIP, Address: "127.0.0.1"},
|
|
{Type: v1.NodeHostName, Address: testKubeletHostname},
|
|
},
|
|
// images will be sorted from max to min in node status.
|
|
Images: []v1.ContainerImage{
|
|
{
|
|
Names: []string{"k8s.gcr.io:v1", "k8s.gcr.io:v2"},
|
|
SizeBytes: 123,
|
|
},
|
|
{
|
|
Names: []string{"k8s.gcr.io:v3", "k8s.gcr.io:v4"},
|
|
SizeBytes: 456,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
kubelet.updateRuntimeUp()
|
|
assert.NoError(t, kubelet.updateNodeStatus())
|
|
|
|
actions := kubeClient.Actions()
|
|
assert.Len(t, actions, 2)
|
|
|
|
assert.IsType(t, core.PatchActionImpl{}, actions[1])
|
|
patchAction := actions[1].(core.PatchActionImpl)
|
|
|
|
updatedNode, err := applyNodeStatusPatch(&existingNode, patchAction.GetPatch())
|
|
require.NoError(t, err)
|
|
|
|
for i, cond := range updatedNode.Status.Conditions {
|
|
old := metav1.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC).Time
|
|
// Expect LastHearbeat to be updated to Now, while LastTransitionTime to be the same.
|
|
assert.NotEqual(t, old, cond.LastHeartbeatTime.Rfc3339Copy().UTC(), "LastHeartbeatTime for condition %v", cond.Type)
|
|
assert.EqualValues(t, old, cond.LastTransitionTime.Rfc3339Copy().UTC(), "LastTransitionTime for condition %v", cond.Type)
|
|
|
|
updatedNode.Status.Conditions[i].LastHeartbeatTime = metav1.Time{}
|
|
updatedNode.Status.Conditions[i].LastTransitionTime = metav1.Time{}
|
|
}
|
|
|
|
// Version skew workaround. See: https://github.com/kubernetes/kubernetes/issues/16961
|
|
assert.Equal(t, v1.NodeReady, updatedNode.Status.Conditions[len(updatedNode.Status.Conditions)-1].Type,
|
|
"NodeReady should be the last condition")
|
|
assert.True(t, apiequality.Semantic.DeepEqual(expectedNode, updatedNode), "%s", diff.ObjectDiff(expectedNode, updatedNode))
|
|
}
|
|
|
|
func TestUpdateExistingNodeStatusTimeout(t *testing.T) {
|
|
attempts := int64(0)
|
|
failureCallbacks := int64(0)
|
|
|
|
// set up a listener that hangs connections
|
|
ln, err := net.Listen("tcp", "127.0.0.1:0")
|
|
assert.NoError(t, err)
|
|
defer ln.Close()
|
|
go func() {
|
|
// accept connections and just let them hang
|
|
for {
|
|
_, err := ln.Accept()
|
|
if err != nil {
|
|
t.Log(err)
|
|
return
|
|
}
|
|
t.Log("accepted connection")
|
|
atomic.AddInt64(&attempts, 1)
|
|
}
|
|
}()
|
|
|
|
config := &rest.Config{
|
|
Host: "http://" + ln.Addr().String(),
|
|
QPS: -1,
|
|
Timeout: time.Second,
|
|
}
|
|
assert.NoError(t, err)
|
|
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
kubelet.kubeClient = nil // ensure only the heartbeat client is used
|
|
kubelet.heartbeatClient, err = clientset.NewForConfig(config)
|
|
kubelet.onRepeatedHeartbeatFailure = func() {
|
|
atomic.AddInt64(&failureCallbacks, 1)
|
|
}
|
|
kubelet.containerManager = &localCM{
|
|
ContainerManager: cm.NewStubContainerManager(),
|
|
allocatableReservation: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(200, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(100E6, resource.BinarySI),
|
|
},
|
|
capacity: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(20E9, resource.BinarySI),
|
|
},
|
|
}
|
|
|
|
// should return an error, but not hang
|
|
assert.Error(t, kubelet.updateNodeStatus())
|
|
|
|
// should have attempted multiple times
|
|
if actualAttempts := atomic.LoadInt64(&attempts); actualAttempts < nodeStatusUpdateRetry {
|
|
t.Errorf("Expected at least %d attempts, got %d", nodeStatusUpdateRetry, actualAttempts)
|
|
}
|
|
// should have gotten multiple failure callbacks
|
|
if actualFailureCallbacks := atomic.LoadInt64(&failureCallbacks); actualFailureCallbacks < (nodeStatusUpdateRetry - 1) {
|
|
t.Errorf("Expected %d failure callbacks, got %d", (nodeStatusUpdateRetry - 1), actualFailureCallbacks)
|
|
}
|
|
}
|
|
|
|
func TestUpdateNodeStatusWithRuntimeStateError(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
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{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(200, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(100E6, resource.BinarySI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
},
|
|
capacity: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(20E9, resource.BinarySI),
|
|
},
|
|
}
|
|
// Since this test retroactively overrides the stub container manager,
|
|
// we have to regenerate default status setters.
|
|
kubelet.setNodeStatusFuncs = kubelet.defaultNodeStatusFuncs()
|
|
|
|
clock := testKubelet.fakeClock
|
|
kubeClient := testKubelet.fakeKubeClient
|
|
existingNode := v1.Node{ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname}}
|
|
kubeClient.ReactionChain = fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{existingNode}}).ReactionChain
|
|
machineInfo := &cadvisorapi.MachineInfo{
|
|
MachineID: "123",
|
|
SystemUUID: "abc",
|
|
BootID: "1b3",
|
|
NumCores: 2,
|
|
MemoryCapacity: 10E9,
|
|
}
|
|
kubelet.machineInfo = machineInfo
|
|
|
|
expectedNode := &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname},
|
|
Spec: v1.NodeSpec{},
|
|
Status: v1.NodeStatus{
|
|
Conditions: []v1.NodeCondition{
|
|
{
|
|
Type: v1.NodeOutOfDisk,
|
|
Status: v1.ConditionFalse,
|
|
Reason: "KubeletHasSufficientDisk",
|
|
Message: fmt.Sprintf("kubelet has sufficient disk space available"),
|
|
LastHeartbeatTime: metav1.Time{},
|
|
LastTransitionTime: metav1.Time{},
|
|
},
|
|
{
|
|
Type: v1.NodeMemoryPressure,
|
|
Status: v1.ConditionFalse,
|
|
Reason: "KubeletHasSufficientMemory",
|
|
Message: fmt.Sprintf("kubelet has sufficient memory available"),
|
|
LastHeartbeatTime: metav1.Time{},
|
|
LastTransitionTime: metav1.Time{},
|
|
},
|
|
{
|
|
Type: v1.NodeDiskPressure,
|
|
Status: v1.ConditionFalse,
|
|
Reason: "KubeletHasNoDiskPressure",
|
|
Message: fmt.Sprintf("kubelet has no disk pressure"),
|
|
LastHeartbeatTime: metav1.Time{},
|
|
LastTransitionTime: metav1.Time{},
|
|
},
|
|
{
|
|
Type: v1.NodePIDPressure,
|
|
Status: v1.ConditionFalse,
|
|
Reason: "KubeletHasSufficientPID",
|
|
Message: fmt.Sprintf("kubelet has sufficient PID available"),
|
|
LastHeartbeatTime: metav1.Time{},
|
|
LastTransitionTime: metav1.Time{},
|
|
},
|
|
{}, //placeholder
|
|
},
|
|
NodeInfo: v1.NodeSystemInfo{
|
|
MachineID: "123",
|
|
SystemUUID: "abc",
|
|
BootID: "1b3",
|
|
KernelVersion: cadvisortest.FakeKernelVersion,
|
|
OSImage: cadvisortest.FakeContainerOsVersion,
|
|
OperatingSystem: goruntime.GOOS,
|
|
Architecture: goruntime.GOARCH,
|
|
ContainerRuntimeVersion: "test://1.5.0",
|
|
KubeletVersion: version.Get().String(),
|
|
KubeProxyVersion: version.Get().String(),
|
|
},
|
|
Capacity: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(20E9, resource.BinarySI),
|
|
},
|
|
Allocatable: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(1800, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(9900E6, resource.BinarySI),
|
|
v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
},
|
|
Addresses: []v1.NodeAddress{
|
|
{Type: v1.NodeInternalIP, Address: "127.0.0.1"},
|
|
{Type: v1.NodeHostName, Address: testKubeletHostname},
|
|
},
|
|
Images: []v1.ContainerImage{
|
|
{
|
|
Names: []string{"k8s.gcr.io:v1", "k8s.gcr.io:v2"},
|
|
SizeBytes: 123,
|
|
},
|
|
{
|
|
Names: []string{"k8s.gcr.io:v3", "k8s.gcr.io:v4"},
|
|
SizeBytes: 456,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
checkNodeStatus := func(status v1.ConditionStatus, reason string) {
|
|
kubeClient.ClearActions()
|
|
assert.NoError(t, kubelet.updateNodeStatus())
|
|
actions := kubeClient.Actions()
|
|
require.Len(t, actions, 2)
|
|
require.True(t, actions[1].Matches("patch", "nodes"))
|
|
require.Equal(t, actions[1].GetSubresource(), "status")
|
|
|
|
updatedNode, err := kubeClient.CoreV1().Nodes().Get(testKubeletHostname, metav1.GetOptions{})
|
|
require.NoError(t, err, "can't apply node status patch")
|
|
|
|
for i, cond := range updatedNode.Status.Conditions {
|
|
assert.False(t, cond.LastHeartbeatTime.IsZero(), "LastHeartbeatTime for %v condition is zero", cond.Type)
|
|
assert.False(t, cond.LastTransitionTime.IsZero(), "LastTransitionTime for %v condition is zero", cond.Type)
|
|
updatedNode.Status.Conditions[i].LastHeartbeatTime = metav1.Time{}
|
|
updatedNode.Status.Conditions[i].LastTransitionTime = metav1.Time{}
|
|
}
|
|
|
|
// Version skew workaround. See: https://github.com/kubernetes/kubernetes/issues/16961
|
|
lastIndex := len(updatedNode.Status.Conditions) - 1
|
|
assert.Equal(t, v1.NodeReady, updatedNode.Status.Conditions[lastIndex].Type, "NodeReady should be the last condition")
|
|
assert.NotEmpty(t, updatedNode.Status.Conditions[lastIndex].Message)
|
|
|
|
updatedNode.Status.Conditions[lastIndex].Message = ""
|
|
expectedNode.Status.Conditions[lastIndex] = v1.NodeCondition{
|
|
Type: v1.NodeReady,
|
|
Status: status,
|
|
Reason: reason,
|
|
LastHeartbeatTime: metav1.Time{},
|
|
LastTransitionTime: metav1.Time{},
|
|
}
|
|
assert.True(t, apiequality.Semantic.DeepEqual(expectedNode, updatedNode), "%s", diff.ObjectDiff(expectedNode, updatedNode))
|
|
}
|
|
|
|
// TODO(random-liu): Refactor the unit test to be table driven test.
|
|
// Should report kubelet not ready if the runtime check is out of date
|
|
clock.SetTime(time.Now().Add(-maxWaitForContainerRuntime))
|
|
kubelet.updateRuntimeUp()
|
|
checkNodeStatus(v1.ConditionFalse, "KubeletNotReady")
|
|
|
|
// Should report kubelet ready if the runtime check is updated
|
|
clock.SetTime(time.Now())
|
|
kubelet.updateRuntimeUp()
|
|
checkNodeStatus(v1.ConditionTrue, "KubeletReady")
|
|
|
|
// Should report kubelet not ready if the runtime check is out of date
|
|
clock.SetTime(time.Now().Add(-maxWaitForContainerRuntime))
|
|
kubelet.updateRuntimeUp()
|
|
checkNodeStatus(v1.ConditionFalse, "KubeletNotReady")
|
|
|
|
// Should report kubelet not ready if the runtime check failed
|
|
fakeRuntime := testKubelet.fakeRuntime
|
|
// Inject error into fake runtime status check, node should be NotReady
|
|
fakeRuntime.StatusErr = fmt.Errorf("injected runtime status error")
|
|
clock.SetTime(time.Now())
|
|
kubelet.updateRuntimeUp()
|
|
checkNodeStatus(v1.ConditionFalse, "KubeletNotReady")
|
|
|
|
fakeRuntime.StatusErr = nil
|
|
|
|
// Should report node not ready if runtime status is nil.
|
|
fakeRuntime.RuntimeStatus = nil
|
|
kubelet.updateRuntimeUp()
|
|
checkNodeStatus(v1.ConditionFalse, "KubeletNotReady")
|
|
|
|
// Should report node not ready if runtime status is empty.
|
|
fakeRuntime.RuntimeStatus = &kubecontainer.RuntimeStatus{}
|
|
kubelet.updateRuntimeUp()
|
|
checkNodeStatus(v1.ConditionFalse, "KubeletNotReady")
|
|
|
|
// Should report node not ready if RuntimeReady is false.
|
|
fakeRuntime.RuntimeStatus = &kubecontainer.RuntimeStatus{
|
|
Conditions: []kubecontainer.RuntimeCondition{
|
|
{Type: kubecontainer.RuntimeReady, Status: false},
|
|
{Type: kubecontainer.NetworkReady, Status: true},
|
|
},
|
|
}
|
|
kubelet.updateRuntimeUp()
|
|
checkNodeStatus(v1.ConditionFalse, "KubeletNotReady")
|
|
|
|
// Should report node ready if RuntimeReady is true.
|
|
fakeRuntime.RuntimeStatus = &kubecontainer.RuntimeStatus{
|
|
Conditions: []kubecontainer.RuntimeCondition{
|
|
{Type: kubecontainer.RuntimeReady, Status: true},
|
|
{Type: kubecontainer.NetworkReady, Status: true},
|
|
},
|
|
}
|
|
kubelet.updateRuntimeUp()
|
|
checkNodeStatus(v1.ConditionTrue, "KubeletReady")
|
|
|
|
// Should report node not ready if NetworkReady is false.
|
|
fakeRuntime.RuntimeStatus = &kubecontainer.RuntimeStatus{
|
|
Conditions: []kubecontainer.RuntimeCondition{
|
|
{Type: kubecontainer.RuntimeReady, Status: true},
|
|
{Type: kubecontainer.NetworkReady, Status: false},
|
|
},
|
|
}
|
|
kubelet.updateRuntimeUp()
|
|
checkNodeStatus(v1.ConditionFalse, "KubeletNotReady")
|
|
}
|
|
|
|
func TestUpdateNodeStatusError(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
kubelet.kubeClient = nil // ensure only the heartbeat client is used
|
|
// No matching node for the kubelet
|
|
testKubelet.fakeKubeClient.ReactionChain = fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{}}).ReactionChain
|
|
assert.Error(t, kubelet.updateNodeStatus())
|
|
assert.Len(t, testKubelet.fakeKubeClient.Actions(), nodeStatusUpdateRetry)
|
|
}
|
|
|
|
func TestRegisterWithApiServer(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
kubeClient := testKubelet.fakeKubeClient
|
|
kubeClient.AddReactor("create", "nodes", func(action core.Action) (bool, runtime.Object, error) {
|
|
// Return an error on create.
|
|
return true, &v1.Node{}, &apierrors.StatusError{
|
|
ErrStatus: metav1.Status{Reason: metav1.StatusReasonAlreadyExists},
|
|
}
|
|
})
|
|
kubeClient.AddReactor("get", "nodes", func(action core.Action) (bool, runtime.Object, error) {
|
|
// Return an existing (matching) node on get.
|
|
return true, &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: testKubeletHostname,
|
|
Labels: map[string]string{
|
|
kubeletapis.LabelHostname: testKubeletHostname,
|
|
kubeletapis.LabelOS: goruntime.GOOS,
|
|
kubeletapis.LabelArch: goruntime.GOARCH,
|
|
},
|
|
},
|
|
}, nil
|
|
})
|
|
|
|
addNotImplatedReaction(kubeClient)
|
|
|
|
machineInfo := &cadvisorapi.MachineInfo{
|
|
MachineID: "123",
|
|
SystemUUID: "abc",
|
|
BootID: "1b3",
|
|
NumCores: 2,
|
|
MemoryCapacity: 1024,
|
|
}
|
|
kubelet.machineInfo = machineInfo
|
|
|
|
done := make(chan struct{})
|
|
go func() {
|
|
kubelet.registerWithAPIServer()
|
|
done <- struct{}{}
|
|
}()
|
|
select {
|
|
case <-time.After(wait.ForeverTestTimeout):
|
|
assert.Fail(t, "timed out waiting for registration")
|
|
case <-done:
|
|
return
|
|
}
|
|
}
|
|
|
|
func TestTryRegisterWithApiServer(t *testing.T) {
|
|
alreadyExists := &apierrors.StatusError{
|
|
ErrStatus: metav1.Status{Reason: metav1.StatusReasonAlreadyExists},
|
|
}
|
|
|
|
conflict := &apierrors.StatusError{
|
|
ErrStatus: metav1.Status{Reason: metav1.StatusReasonConflict},
|
|
}
|
|
|
|
newNode := func(cmad bool) *v1.Node {
|
|
node := &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{
|
|
kubeletapis.LabelHostname: testKubeletHostname,
|
|
kubeletapis.LabelOS: goruntime.GOOS,
|
|
kubeletapis.LabelArch: goruntime.GOARCH,
|
|
},
|
|
},
|
|
}
|
|
|
|
if cmad {
|
|
node.Annotations = make(map[string]string)
|
|
node.Annotations[util.ControllerManagedAttachAnnotation] = "true"
|
|
}
|
|
|
|
return node
|
|
}
|
|
|
|
cases := []struct {
|
|
name string
|
|
newNode *v1.Node
|
|
existingNode *v1.Node
|
|
createError error
|
|
getError error
|
|
patchError error
|
|
deleteError error
|
|
expectedResult bool
|
|
expectedActions int
|
|
testSavedNode bool
|
|
savedNodeIndex int
|
|
savedNodeCMAD bool
|
|
}{
|
|
{
|
|
name: "success case - new node",
|
|
newNode: &v1.Node{},
|
|
expectedResult: true,
|
|
expectedActions: 1,
|
|
},
|
|
{
|
|
name: "success case - existing node - no change in CMAD",
|
|
newNode: newNode(true),
|
|
createError: alreadyExists,
|
|
existingNode: newNode(true),
|
|
expectedResult: true,
|
|
expectedActions: 2,
|
|
},
|
|
{
|
|
name: "success case - existing node - CMAD disabled",
|
|
newNode: newNode(false),
|
|
createError: alreadyExists,
|
|
existingNode: newNode(true),
|
|
expectedResult: true,
|
|
expectedActions: 3,
|
|
testSavedNode: true,
|
|
savedNodeIndex: 2,
|
|
savedNodeCMAD: false,
|
|
},
|
|
{
|
|
name: "success case - existing node - CMAD enabled",
|
|
newNode: newNode(true),
|
|
createError: alreadyExists,
|
|
existingNode: newNode(false),
|
|
expectedResult: true,
|
|
expectedActions: 3,
|
|
testSavedNode: true,
|
|
savedNodeIndex: 2,
|
|
savedNodeCMAD: true,
|
|
},
|
|
{
|
|
name: "create failed",
|
|
newNode: newNode(false),
|
|
createError: conflict,
|
|
expectedResult: false,
|
|
expectedActions: 1,
|
|
},
|
|
{
|
|
name: "get existing node failed",
|
|
newNode: newNode(false),
|
|
createError: alreadyExists,
|
|
getError: conflict,
|
|
expectedResult: false,
|
|
expectedActions: 2,
|
|
},
|
|
{
|
|
name: "update existing node failed",
|
|
newNode: newNode(false),
|
|
createError: alreadyExists,
|
|
existingNode: newNode(true),
|
|
patchError: conflict,
|
|
expectedResult: false,
|
|
expectedActions: 3,
|
|
},
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled is a don't-care for this test */)
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
kubeClient := testKubelet.fakeKubeClient
|
|
|
|
kubeClient.AddReactor("create", "nodes", func(action core.Action) (bool, runtime.Object, error) {
|
|
return true, nil, tc.createError
|
|
})
|
|
kubeClient.AddReactor("get", "nodes", func(action core.Action) (bool, runtime.Object, error) {
|
|
// Return an existing (matching) node on get.
|
|
return true, tc.existingNode, tc.getError
|
|
})
|
|
kubeClient.AddReactor("patch", "nodes", func(action core.Action) (bool, runtime.Object, error) {
|
|
if action.GetSubresource() == "status" {
|
|
return true, nil, tc.patchError
|
|
}
|
|
return notImplemented(action)
|
|
})
|
|
kubeClient.AddReactor("delete", "nodes", func(action core.Action) (bool, runtime.Object, error) {
|
|
return true, nil, tc.deleteError
|
|
})
|
|
addNotImplatedReaction(kubeClient)
|
|
|
|
result := kubelet.tryRegisterWithAPIServer(tc.newNode)
|
|
require.Equal(t, tc.expectedResult, result, "test [%s]", tc.name)
|
|
|
|
actions := kubeClient.Actions()
|
|
assert.Len(t, actions, tc.expectedActions, "test [%s]", tc.name)
|
|
|
|
if tc.testSavedNode {
|
|
var savedNode *v1.Node
|
|
|
|
t.Logf("actions: %v: %+v", len(actions), actions)
|
|
action := actions[tc.savedNodeIndex]
|
|
if action.GetVerb() == "create" {
|
|
createAction := action.(core.CreateAction)
|
|
obj := createAction.GetObject()
|
|
require.IsType(t, &v1.Node{}, obj)
|
|
savedNode = obj.(*v1.Node)
|
|
} else if action.GetVerb() == "patch" {
|
|
patchAction := action.(core.PatchActionImpl)
|
|
var err error
|
|
savedNode, err = applyNodeStatusPatch(tc.existingNode, patchAction.GetPatch())
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
actualCMAD, _ := strconv.ParseBool(savedNode.Annotations[util.ControllerManagedAttachAnnotation])
|
|
assert.Equal(t, tc.savedNodeCMAD, actualCMAD, "test [%s]", tc.name)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestUpdateNewNodeStatusTooLargeReservation(t *testing.T) {
|
|
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 */, true /* initFakeVolumePlugin */)
|
|
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(),
|
|
allocatableReservation: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(40000, resource.DecimalSI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(1000, resource.BinarySI),
|
|
},
|
|
capacity: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(3000, resource.BinarySI),
|
|
},
|
|
}
|
|
// Since this test retroactively overrides the stub container manager,
|
|
// we have to regenerate default status setters.
|
|
kubelet.setNodeStatusFuncs = kubelet.defaultNodeStatusFuncs()
|
|
|
|
kubeClient := testKubelet.fakeKubeClient
|
|
existingNode := v1.Node{ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname}}
|
|
kubeClient.ReactionChain = fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{existingNode}}).ReactionChain
|
|
machineInfo := &cadvisorapi.MachineInfo{
|
|
MachineID: "123",
|
|
SystemUUID: "abc",
|
|
BootID: "1b3",
|
|
NumCores: 2,
|
|
MemoryCapacity: 10E9, // 10G
|
|
}
|
|
kubelet.machineInfo = machineInfo
|
|
|
|
expectedNode := &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname},
|
|
Spec: v1.NodeSpec{},
|
|
Status: v1.NodeStatus{
|
|
Capacity: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(3000, resource.BinarySI),
|
|
},
|
|
Allocatable: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(0, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourcePods: *resource.NewQuantity(0, resource.DecimalSI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(2000, resource.BinarySI),
|
|
},
|
|
},
|
|
}
|
|
|
|
kubelet.updateRuntimeUp()
|
|
assert.NoError(t, kubelet.updateNodeStatus())
|
|
actions := kubeClient.Actions()
|
|
require.Len(t, actions, 2)
|
|
require.True(t, actions[1].Matches("patch", "nodes"))
|
|
require.Equal(t, actions[1].GetSubresource(), "status")
|
|
|
|
updatedNode, err := applyNodeStatusPatch(&existingNode, actions[1].(core.PatchActionImpl).GetPatch())
|
|
assert.NoError(t, err)
|
|
assert.True(t, apiequality.Semantic.DeepEqual(expectedNode.Status.Allocatable, updatedNode.Status.Allocatable), "%s", diff.ObjectDiff(expectedNode.Status.Allocatable, updatedNode.Status.Allocatable))
|
|
}
|
|
|
|
func TestUpdateDefaultLabels(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
testKubelet.kubelet.kubeClient = nil // ensure only the heartbeat client is used
|
|
|
|
cases := []struct {
|
|
name string
|
|
initialNode *v1.Node
|
|
existingNode *v1.Node
|
|
needsUpdate bool
|
|
finalLabels map[string]string
|
|
}{
|
|
{
|
|
name: "make sure default labels exist",
|
|
initialNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
},
|
|
},
|
|
},
|
|
existingNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{},
|
|
},
|
|
},
|
|
needsUpdate: true,
|
|
finalLabels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
},
|
|
},
|
|
{
|
|
name: "make sure default labels are up to date",
|
|
initialNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
},
|
|
},
|
|
},
|
|
existingNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{
|
|
kubeletapis.LabelHostname: "old-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "old-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "old-zone-region",
|
|
kubeletapis.LabelInstanceType: "old-instance-type",
|
|
kubeletapis.LabelOS: "old-os",
|
|
kubeletapis.LabelArch: "old-arch",
|
|
},
|
|
},
|
|
},
|
|
needsUpdate: true,
|
|
finalLabels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
},
|
|
},
|
|
{
|
|
name: "make sure existing labels do not get deleted",
|
|
initialNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
},
|
|
},
|
|
},
|
|
existingNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
"please-persist": "foo",
|
|
},
|
|
},
|
|
},
|
|
needsUpdate: false,
|
|
finalLabels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
"please-persist": "foo",
|
|
},
|
|
},
|
|
{
|
|
name: "make sure existing labels do not get deleted when initial node has no opinion",
|
|
initialNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{},
|
|
},
|
|
},
|
|
existingNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
"please-persist": "foo",
|
|
},
|
|
},
|
|
},
|
|
needsUpdate: false,
|
|
finalLabels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
"please-persist": "foo",
|
|
},
|
|
},
|
|
{
|
|
name: "no update needed",
|
|
initialNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
},
|
|
},
|
|
},
|
|
existingNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
},
|
|
},
|
|
},
|
|
needsUpdate: false,
|
|
finalLabels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
},
|
|
},
|
|
{
|
|
name: "not panic when existing node has nil labels",
|
|
initialNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
},
|
|
},
|
|
},
|
|
existingNode: &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{},
|
|
},
|
|
needsUpdate: true,
|
|
finalLabels: map[string]string{
|
|
kubeletapis.LabelHostname: "new-hostname",
|
|
kubeletapis.LabelZoneFailureDomain: "new-zone-failure-domain",
|
|
kubeletapis.LabelZoneRegion: "new-zone-region",
|
|
kubeletapis.LabelInstanceType: "new-instance-type",
|
|
kubeletapis.LabelOS: "new-os",
|
|
kubeletapis.LabelArch: "new-arch",
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
|
|
needsUpdate := kubelet.updateDefaultLabels(tc.initialNode, tc.existingNode)
|
|
assert.Equal(t, tc.needsUpdate, needsUpdate, tc.name)
|
|
assert.Equal(t, tc.finalLabels, tc.existingNode.Labels, tc.name)
|
|
}
|
|
}
|
|
|
|
func TestReconcileExtendedResource(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
testKubelet.kubelet.kubeClient = nil // ensure only the heartbeat client is used
|
|
extendedResourceName1 := v1.ResourceName("test.com/resource1")
|
|
extendedResourceName2 := v1.ResourceName("test.com/resource2")
|
|
|
|
cases := []struct {
|
|
name string
|
|
existingNode *v1.Node
|
|
expectedNode *v1.Node
|
|
needsUpdate bool
|
|
}{
|
|
{
|
|
name: "no update needed without extended resource",
|
|
existingNode: &v1.Node{
|
|
Status: v1.NodeStatus{
|
|
Capacity: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
|
|
},
|
|
Allocatable: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
|
|
},
|
|
},
|
|
},
|
|
expectedNode: &v1.Node{
|
|
Status: v1.NodeStatus{
|
|
Capacity: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
|
|
},
|
|
Allocatable: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
|
|
},
|
|
},
|
|
},
|
|
needsUpdate: false,
|
|
},
|
|
{
|
|
name: "extended resource capacity is zeroed",
|
|
existingNode: &v1.Node{
|
|
Status: v1.NodeStatus{
|
|
Capacity: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
|
|
extendedResourceName1: *resource.NewQuantity(int64(2), resource.DecimalSI),
|
|
extendedResourceName2: *resource.NewQuantity(int64(10), resource.DecimalSI),
|
|
},
|
|
Allocatable: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
|
|
extendedResourceName1: *resource.NewQuantity(int64(2), resource.DecimalSI),
|
|
extendedResourceName2: *resource.NewQuantity(int64(10), resource.DecimalSI),
|
|
},
|
|
},
|
|
},
|
|
expectedNode: &v1.Node{
|
|
Status: v1.NodeStatus{
|
|
Capacity: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
|
|
extendedResourceName1: *resource.NewQuantity(int64(0), resource.DecimalSI),
|
|
extendedResourceName2: *resource.NewQuantity(int64(0), resource.DecimalSI),
|
|
},
|
|
Allocatable: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(10E9, resource.BinarySI),
|
|
v1.ResourceEphemeralStorage: *resource.NewQuantity(5000, resource.BinarySI),
|
|
extendedResourceName1: *resource.NewQuantity(int64(0), resource.DecimalSI),
|
|
extendedResourceName2: *resource.NewQuantity(int64(0), resource.DecimalSI),
|
|
},
|
|
},
|
|
},
|
|
needsUpdate: true,
|
|
},
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
initialNode := &v1.Node{}
|
|
|
|
needsUpdate := kubelet.reconcileExtendedResource(initialNode, tc.existingNode)
|
|
assert.Equal(t, tc.needsUpdate, needsUpdate, tc.name)
|
|
assert.Equal(t, tc.expectedNode, tc.existingNode, tc.name)
|
|
}
|
|
|
|
}
|
|
|
|
func TestValidateNodeIPParam(t *testing.T) {
|
|
type test struct {
|
|
nodeIP string
|
|
success bool
|
|
testName string
|
|
}
|
|
tests := []test{
|
|
{
|
|
nodeIP: "",
|
|
success: false,
|
|
testName: "IP not set",
|
|
},
|
|
{
|
|
nodeIP: "127.0.0.1",
|
|
success: false,
|
|
testName: "IPv4 loopback address",
|
|
},
|
|
{
|
|
nodeIP: "::1",
|
|
success: false,
|
|
testName: "IPv6 loopback address",
|
|
},
|
|
{
|
|
nodeIP: "224.0.0.1",
|
|
success: false,
|
|
testName: "multicast IPv4 address",
|
|
},
|
|
{
|
|
nodeIP: "ff00::1",
|
|
success: false,
|
|
testName: "multicast IPv6 address",
|
|
},
|
|
{
|
|
nodeIP: "169.254.0.1",
|
|
success: false,
|
|
testName: "IPv4 link-local unicast address",
|
|
},
|
|
{
|
|
nodeIP: "fe80::0202:b3ff:fe1e:8329",
|
|
success: false,
|
|
testName: "IPv6 link-local unicast address",
|
|
},
|
|
{
|
|
nodeIP: "0.0.0.0",
|
|
success: false,
|
|
testName: "Unspecified IPv4 address",
|
|
},
|
|
{
|
|
nodeIP: "::",
|
|
success: false,
|
|
testName: "Unspecified IPv6 address",
|
|
},
|
|
{
|
|
nodeIP: "1.2.3.4",
|
|
success: false,
|
|
testName: "IPv4 address that doesn't belong to host",
|
|
},
|
|
}
|
|
addrs, err := net.InterfaceAddrs()
|
|
if err != nil {
|
|
assert.Error(t, err, fmt.Sprintf(
|
|
"Unable to obtain a list of the node's unicast interface addresses."))
|
|
}
|
|
for _, addr := range addrs {
|
|
var ip net.IP
|
|
switch v := addr.(type) {
|
|
case *net.IPNet:
|
|
ip = v.IP
|
|
case *net.IPAddr:
|
|
ip = v.IP
|
|
}
|
|
if ip.IsLoopback() || ip.IsLinkLocalUnicast() {
|
|
break
|
|
}
|
|
successTest := test{
|
|
nodeIP: ip.String(),
|
|
success: true,
|
|
testName: fmt.Sprintf("Success test case for address %s", ip.String()),
|
|
}
|
|
tests = append(tests, successTest)
|
|
}
|
|
for _, test := range tests {
|
|
err := validateNodeIP(net.ParseIP(test.nodeIP))
|
|
if test.success {
|
|
assert.NoError(t, err, "test %s", test.testName)
|
|
} else {
|
|
assert.Error(t, err, fmt.Sprintf("test %s", test.testName))
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRegisterWithApiServerWithTaint(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
kubeClient := testKubelet.fakeKubeClient
|
|
|
|
machineInfo := &cadvisorapi.MachineInfo{
|
|
MachineID: "123",
|
|
SystemUUID: "abc",
|
|
BootID: "1b3",
|
|
NumCores: 2,
|
|
MemoryCapacity: 1024,
|
|
}
|
|
kubelet.machineInfo = machineInfo
|
|
|
|
var gotNode runtime.Object
|
|
kubeClient.AddReactor("create", "nodes", func(action core.Action) (bool, runtime.Object, error) {
|
|
createAction := action.(core.CreateAction)
|
|
gotNode = createAction.GetObject()
|
|
return true, gotNode, nil
|
|
})
|
|
|
|
addNotImplatedReaction(kubeClient)
|
|
|
|
// Make node to be unschedulable.
|
|
kubelet.registerSchedulable = false
|
|
|
|
forEachFeatureGate(t, []utilfeature.Feature{features.TaintNodesByCondition}, func(t *testing.T) {
|
|
// Reset kubelet status for each test.
|
|
kubelet.registrationCompleted = false
|
|
|
|
// Register node to apiserver.
|
|
kubelet.registerWithAPIServer()
|
|
|
|
// Check the unschedulable taint.
|
|
got := gotNode.(*v1.Node)
|
|
unschedulableTaint := &v1.Taint{
|
|
Key: algorithm.TaintNodeUnschedulable,
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
}
|
|
|
|
require.Equal(t,
|
|
utilfeature.DefaultFeatureGate.Enabled(features.TaintNodesByCondition),
|
|
taintutil.TaintExists(got.Spec.Taints, unschedulableTaint),
|
|
"test unschedulable taint for TaintNodesByCondition")
|
|
|
|
return
|
|
})
|
|
}
|