/
daemonset_util.go
442 lines (396 loc) · 13.6 KB
/
daemonset_util.go
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package framework
import (
"context"
"fmt"
"reflect"
"strings"
"time"
appsv1alpha1 "github.com/openkruise/kruise/apis/apps/v1alpha1"
kruiseclientset "github.com/openkruise/kruise/pkg/client/clientset/versioned"
"github.com/openkruise/kruise/pkg/controller/daemonset"
v1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/wait"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/client-go/util/retry"
podutil "k8s.io/kubernetes/pkg/api/v1/pod"
daemonutil "k8s.io/kubernetes/pkg/controller/daemon/util"
utilpointer "k8s.io/utils/pointer"
)
const (
// DaemonSetRetryPeriod indicates poll interval for DaemonSet tests
DaemonSetRetryPeriod = 1 * time.Second
// DaemonSetRetryTimeout indicates timeout interval for DaemonSet operations
DaemonSetRetryTimeout = 5 * time.Minute
DaemonSetLabelPrefix = "daemonset-"
DaemonSetNameLabel = DaemonSetLabelPrefix + "name"
DaemonSetColorLabel = DaemonSetLabelPrefix + "color"
)
type DaemonSetTester struct {
c clientset.Interface
kc kruiseclientset.Interface
ns string
}
func NewDaemonSetTester(c clientset.Interface, kc kruiseclientset.Interface, ns string) *DaemonSetTester {
return &DaemonSetTester{
c: c,
kc: kc,
ns: ns,
}
}
func (t *DaemonSetTester) NewDaemonSet(name string, label map[string]string, image string, updateStrategy appsv1alpha1.DaemonSetUpdateStrategy) *appsv1alpha1.DaemonSet {
burstReplicas := intstr.IntOrString{IntVal: int32(50)}
return &appsv1alpha1.DaemonSet{
ObjectMeta: metav1.ObjectMeta{
Namespace: t.ns,
Name: name,
},
Spec: appsv1alpha1.DaemonSetSpec{
BurstReplicas: &burstReplicas,
Selector: &metav1.LabelSelector{
MatchLabels: label,
},
Template: v1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: label,
},
Spec: v1.PodSpec{
Containers: []v1.Container{
{
Name: "busybox",
Image: image,
Command: []string{"/bin/sh", "-c", "sleep 10000000"},
},
},
HostNetwork: true,
Tolerations: []v1.Toleration{{Operator: v1.TolerationOpExists}},
TerminationGracePeriodSeconds: utilpointer.Int64(3),
},
},
UpdateStrategy: updateStrategy,
},
}
}
func (t *DaemonSetTester) CreateDaemonSet(ds *appsv1alpha1.DaemonSet) (*appsv1alpha1.DaemonSet, error) {
return t.kc.AppsV1alpha1().DaemonSets(t.ns).Create(context.TODO(), ds, metav1.CreateOptions{})
}
func (t *DaemonSetTester) GetDaemonSet(name string) (*appsv1alpha1.DaemonSet, error) {
return t.kc.AppsV1alpha1().DaemonSets(t.ns).Get(context.TODO(), name, metav1.GetOptions{})
}
func (t *DaemonSetTester) UpdateDaemonSet(name string, fn func(ds *appsv1alpha1.DaemonSet)) error {
return retry.RetryOnConflict(retry.DefaultBackoff, func() error {
ds, err := t.GetDaemonSet(name)
if err != nil {
return err
}
fn(ds)
_, err = t.kc.AppsV1alpha1().DaemonSets(t.ns).Update(context.TODO(), ds, metav1.UpdateOptions{})
return err
})
}
func (t *DaemonSetTester) DeleteDaemonSet(namespace, name string) {
err := t.kc.AppsV1alpha1().DaemonSets(namespace).Delete(context.TODO(), name, metav1.DeleteOptions{})
if err != nil {
Logf("delete daemonset(%s/%s) failed: %s", t.ns, name, err.Error())
return
}
}
func (t *DaemonSetTester) PatchDaemonSet(name string, patchType types.PatchType, patch []byte) (*appsv1alpha1.DaemonSet, error) {
return t.kc.AppsV1alpha1().DaemonSets(t.ns).Patch(context.TODO(), name, patchType, patch, metav1.PatchOptions{})
}
func (t *DaemonSetTester) WaitForDaemonSetDeleted(namespace, name string) {
pollErr := wait.PollImmediate(time.Second, time.Minute,
func() (bool, error) {
_, err := t.kc.AppsV1alpha1().DaemonSets(namespace).Get(context.TODO(), name, metav1.GetOptions{})
if err != nil {
if apierrors.IsNotFound(err) {
return true, nil
}
return false, err
}
return false, nil
})
if pollErr != nil {
Failf("Failed waiting for daemonset to enter Deleted: %v", pollErr)
}
}
func (t *DaemonSetTester) CheckDaemonStatus(dsName string) error {
ds, err := t.GetDaemonSet(dsName)
if err != nil {
return fmt.Errorf("Could not get daemon set from v1.")
}
desired, scheduled, ready := ds.Status.DesiredNumberScheduled, ds.Status.CurrentNumberScheduled, ds.Status.NumberReady
if desired != scheduled && desired != ready {
return fmt.Errorf("Error in daemon status. DesiredScheduled: %d, CurrentScheduled: %d, Ready: %d", desired, scheduled, ready)
}
return nil
}
func (t *DaemonSetTester) CheckDaemonReady(dsName string) func() (bool, error) {
return func() (bool, error) {
ds, err := t.GetDaemonSet(dsName)
if err != nil {
return true, fmt.Errorf("Could not get daemon set %v", dsName)
}
desired, updated, scheduled, ready := ds.Status.DesiredNumberScheduled, ds.Status.UpdatedNumberScheduled, ds.Status.CurrentNumberScheduled, ds.Status.NumberReady
if desired != updated {
Logf("DaemonSet %v is not updated. DesiredScheduled: %d, UpdatedNumberScheduled: %d", dsName, desired, updated)
return false, nil
}
if desired != scheduled && desired != ready {
Logf("DaemonSet %v is not ready. DesiredScheduled: %d, CurrentScheduled: %d, Ready: %d", dsName, desired, scheduled, ready)
return false, nil
}
return true, nil
}
}
func (t *DaemonSetTester) SeparateDaemonSetNodeLabels(labels map[string]string) (map[string]string, map[string]string) {
daemonSetLabels := map[string]string{}
otherLabels := map[string]string{}
for k, v := range labels {
if strings.HasPrefix(k, DaemonSetLabelPrefix) {
daemonSetLabels[k] = v
} else {
otherLabels[k] = v
}
}
return daemonSetLabels, otherLabels
}
func (t *DaemonSetTester) ClearDaemonSetNodeLabels(c clientset.Interface) error {
nodeList := GetReadySchedulableNodesOrDie(c)
for _, node := range nodeList.Items {
_, err := t.SetDaemonSetNodeLabels(node.Name, map[string]string{})
if err != nil {
return err
}
}
return nil
}
func (t *DaemonSetTester) SetDaemonSetNodeLabels(nodeName string, labels map[string]string) (*v1.Node, error) {
nodeClient := t.c.CoreV1().Nodes()
var newNode *v1.Node
var newLabels map[string]string
err := wait.PollImmediate(DaemonSetRetryPeriod, DaemonSetRetryTimeout, func() (bool, error) {
node, err := nodeClient.Get(context.TODO(), nodeName, metav1.GetOptions{})
if err != nil {
return false, err
}
// remove all labels this test is creating
daemonSetLabels, otherLabels := t.SeparateDaemonSetNodeLabels(node.Labels)
if reflect.DeepEqual(daemonSetLabels, labels) {
newNode = node
return true, nil
}
node.Labels = otherLabels
for k, v := range labels {
node.Labels[k] = v
}
newNode, err = nodeClient.Update(context.TODO(), node, metav1.UpdateOptions{})
if err == nil {
newLabels, _ = t.SeparateDaemonSetNodeLabels(newNode.Labels)
return true, err
}
if se, ok := err.(*apierrors.StatusError); ok && se.ErrStatus.Reason == metav1.StatusReasonConflict {
Logf("failed to update node due to resource version conflict")
return false, nil
}
return false, err
})
if err != nil {
return nil, err
} else if len(newLabels) != len(labels) {
return nil, fmt.Errorf("Could not set daemon set test labels as expected.")
}
return newNode, nil
}
func (t *DaemonSetTester) GetNewPodsToCheckImage(label map[string]string, newImage string) func() (bool, error) {
return func() (bool, error) {
newPods, err := t.ListDaemonPods(label)
if err != nil {
Logf("get newPods error!")
return false, nil
}
for _, pod := range newPods.Items {
for _, status := range pod.Status.ContainerStatuses {
substr := strings.Split(status.Image, "/")
image := substr[len(substr)-1]
substr = strings.Split(newImage, "/")
newImage = substr[len(substr)-1]
if image != newImage {
Logf("container image of new pod %s is %s, should be %s", pod.Name, image, newImage)
return false, nil
} else {
Logf("Pod %s has new image %s", pod.Name, substr[len(substr)-1])
}
}
}
return true, nil
}
}
func (t *DaemonSetTester) CheckPodStayInNode(oldNodeList *v1.NodeList, newNodeList *v1.NodeList) func() (bool, error) {
return func() (bool, error) {
if len(oldNodeList.Items) != len(newNodeList.Items) {
Logf("newPods not match old Pods")
return false, nil
}
mp := make(map[string]struct{})
for i, _ := range oldNodeList.Items {
mp[oldNodeList.Items[i].Name] = struct{}{}
}
for _, item := range newNodeList.Items {
if _, ok := mp[item.Name]; ok {
delete(mp, item.Name)
} else {
Logf("mp not contain %s key and mp is %v", item.Name, mp)
return false, nil
}
}
return true, nil
}
}
func (t *DaemonSetTester) CheckRunningOnAllNodes(ds *appsv1alpha1.DaemonSet) func() (bool, error) {
return func() (bool, error) {
nodeNames := t.SchedulableNodes(ds)
return t.CheckDaemonPodOnNodes(ds, nodeNames)()
}
}
func (t *DaemonSetTester) CheckRunningOnNoNodes(ds *appsv1alpha1.DaemonSet) func() (bool, error) {
return t.CheckDaemonPodOnNodes(ds, make([]string, 0))
}
func (t *DaemonSetTester) SchedulableNodes(ds *appsv1alpha1.DaemonSet) []string {
nodeList, err := t.c.CoreV1().Nodes().List(context.TODO(), metav1.ListOptions{})
ExpectNoError(err)
nodeNames := make([]string, 0)
for _, node := range nodeList.Items {
if !t.CanScheduleOnNode(node, ds) {
Logf("DaemonSet pods can't tolerate node %s with taints %+v, skip checking this node", node.Name, node.Spec.Taints)
continue
}
nodeNames = append(nodeNames, node.Name)
}
return nodeNames
}
func (t *DaemonSetTester) CheckDaemonPodOnNodes(ds *appsv1alpha1.DaemonSet, nodeNames []string) func() (bool, error) {
return func() (bool, error) {
podList, err := t.c.CoreV1().Pods(t.ns).List(context.TODO(), metav1.ListOptions{})
if err != nil {
Logf("could not get the pod list: %v", err)
return false, nil
}
pods := podList.Items
nodesToPodCount := make(map[string]int)
for _, pod := range pods {
if !metav1.IsControlledBy(&pod, ds) {
continue
}
if pod.DeletionTimestamp != nil {
continue
}
if podutil.IsPodAvailable(&pod, ds.Spec.MinReadySeconds, metav1.Now()) {
nodesToPodCount[pod.Spec.NodeName] += 1
}
}
Logf("Number of nodes with available pods: %d", len(nodesToPodCount))
// Ensure that exactly 1 pod is running on all nodes in nodeNames.
for _, nodeName := range nodeNames {
if nodesToPodCount[nodeName] > 1 {
Logf("Node %s is running more than one daemon pod", nodeName)
return false, nil
}
}
Logf("Number of running nodes: %d, number of available pods: %d", len(nodeNames), len(nodesToPodCount))
// Ensure that sizes of the lists are the same. We've verified that every element of nodeNames is in
// nodesToPodCount, so verifying the lengths are equal ensures that there aren't pods running on any
// other nodes.
return len(nodesToPodCount) == len(nodeNames), nil
}
}
func (t *DaemonSetTester) WaitFailedDaemonPodDeleted(pod *v1.Pod) func() (bool, error) {
return func() (bool, error) {
if _, err := t.c.CoreV1().Pods(pod.Namespace).Get(context.TODO(), pod.Name, metav1.GetOptions{}); err != nil {
if apierrors.IsNotFound(err) {
return true, nil
}
return false, fmt.Errorf("failed to get failed daemon pod %q: %v", pod.Name, err)
}
return false, nil
}
}
func (t *DaemonSetTester) CanScheduleOnNode(node v1.Node, ds *appsv1alpha1.DaemonSet) bool {
newPod := daemonset.NewPod(ds, node.Name)
taints := node.Spec.Taints
fitsNodeName, fitsNodeAffinity, fitsTaints := daemonset.Predicates(newPod, &node, taints)
if !fitsNodeName || !fitsNodeAffinity || !fitsTaints {
return false
}
return true
}
func (t *DaemonSetTester) ListDaemonPods(label map[string]string) (*v1.PodList, error) {
selector := labels.Set(label).AsSelector()
options := metav1.ListOptions{LabelSelector: selector.String()}
return t.c.CoreV1().Pods(t.ns).List(context.TODO(), options)
}
func (t *DaemonSetTester) DaemonPodHasReadinessGate(pods []v1.Pod) bool {
for _, pod := range pods {
if !daemonset.ContainsReadinessGate(&pod) {
return false
}
Logf("pod %v has readiness gate", pod.Name)
}
return true
}
func (t *DaemonSetTester) CheckPodHasNotRecreate(oldPods, newPods []v1.Pod) bool {
oldPodMap := make(map[string]v1.Pod)
for _, pod := range oldPods {
oldPodMap[pod.Name] = pod
}
for _, pod := range newPods {
oldPod, has := oldPodMap[pod.Name]
if !has {
Logf("no old pod found for %v", pod.Name)
return false
}
if oldPod.Name != pod.Name {
Logf("old pod name is not the same %v %v", oldPod.Name, pod.Name)
return false
}
}
return true
}
func (t *DaemonSetTester) GetPod(name string) (*v1.Pod, error) {
return t.c.CoreV1().Pods(t.ns).Get(context.TODO(), name, metav1.GetOptions{})
}
func (t *DaemonSetTester) PatchPod(name string, patchType types.PatchType, patch []byte) (*v1.Pod, error) {
return t.c.CoreV1().Pods(t.ns).Patch(context.TODO(), name, patchType, patch, metav1.PatchOptions{})
}
func (t *DaemonSetTester) SortPodNames(podList *v1.PodList) []string {
names := sets.NewString()
if podList == nil {
return names.List()
}
for i := range podList.Items {
names.Insert(podList.Items[i].Name)
}
return names.List()
}
func (t *DaemonSetTester) GetNodesToDaemonPods(label map[string]string) (map[string][]*v1.Pod, error) {
podList, err := t.ListDaemonPods(label)
if err != nil {
return nil, err
}
// Group Pods by Node name.
nodeToDaemonPods := make(map[string][]*v1.Pod)
for i := range podList.Items {
pod := &podList.Items[i]
nodeName, err := daemonutil.GetTargetNodeName(pod)
if err != nil {
continue
}
nodeToDaemonPods[nodeName] = append(nodeToDaemonPods[nodeName], pod)
}
return nodeToDaemonPods, nil
}