mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-22 13:00:19 +00:00
641 lines
21 KiB
Go
641 lines
21 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package scheduler
|
|
|
|
import (
|
|
"fmt"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
"testing"
|
|
"time"
|
|
|
|
"k8s.io/api/core/v1"
|
|
policy "k8s.io/api/policy/v1beta1"
|
|
"k8s.io/apimachinery/pkg/api/errors"
|
|
"k8s.io/apimachinery/pkg/api/resource"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/labels"
|
|
"k8s.io/apimachinery/pkg/runtime/schema"
|
|
"k8s.io/apimachinery/pkg/util/uuid"
|
|
"k8s.io/apimachinery/pkg/util/wait"
|
|
"k8s.io/apiserver/pkg/admission"
|
|
utilfeature "k8s.io/apiserver/pkg/util/feature"
|
|
utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
|
|
"k8s.io/client-go/informers"
|
|
coreinformers "k8s.io/client-go/informers/core/v1"
|
|
clientset "k8s.io/client-go/kubernetes"
|
|
clientv1core "k8s.io/client-go/kubernetes/typed/core/v1"
|
|
corelisters "k8s.io/client-go/listers/core/v1"
|
|
restclient "k8s.io/client-go/rest"
|
|
"k8s.io/client-go/tools/record"
|
|
"k8s.io/kubernetes/pkg/api/legacyscheme"
|
|
podutil "k8s.io/kubernetes/pkg/api/v1/pod"
|
|
"k8s.io/kubernetes/pkg/controller"
|
|
"k8s.io/kubernetes/pkg/controller/disruption"
|
|
"k8s.io/kubernetes/pkg/features"
|
|
"k8s.io/kubernetes/pkg/scheduler"
|
|
_ "k8s.io/kubernetes/pkg/scheduler/algorithmprovider"
|
|
schedulerapi "k8s.io/kubernetes/pkg/scheduler/api"
|
|
"k8s.io/kubernetes/pkg/scheduler/factory"
|
|
"k8s.io/kubernetes/test/integration/framework"
|
|
imageutils "k8s.io/kubernetes/test/utils/image"
|
|
)
|
|
|
|
type TestContext struct {
|
|
closeFn framework.CloseFunc
|
|
httpServer *httptest.Server
|
|
ns *v1.Namespace
|
|
clientSet *clientset.Clientset
|
|
informerFactory informers.SharedInformerFactory
|
|
schedulerConfigFactory scheduler.Configurator
|
|
schedulerConfig *scheduler.Config
|
|
scheduler *scheduler.Scheduler
|
|
}
|
|
|
|
// createConfiguratorWithPodInformer creates a configurator for scheduler.
|
|
func createConfiguratorWithPodInformer(
|
|
schedulerName string,
|
|
clientSet clientset.Interface,
|
|
podInformer coreinformers.PodInformer,
|
|
informerFactory informers.SharedInformerFactory,
|
|
) scheduler.Configurator {
|
|
return factory.NewConfigFactory(
|
|
schedulerName,
|
|
clientSet,
|
|
informerFactory.Core().V1().Nodes(),
|
|
podInformer,
|
|
informerFactory.Core().V1().PersistentVolumes(),
|
|
informerFactory.Core().V1().PersistentVolumeClaims(),
|
|
informerFactory.Core().V1().ReplicationControllers(),
|
|
informerFactory.Extensions().V1beta1().ReplicaSets(),
|
|
informerFactory.Apps().V1beta1().StatefulSets(),
|
|
informerFactory.Core().V1().Services(),
|
|
informerFactory.Policy().V1beta1().PodDisruptionBudgets(),
|
|
informerFactory.Storage().V1().StorageClasses(),
|
|
v1.DefaultHardPodAffinitySymmetricWeight,
|
|
utilfeature.DefaultFeatureGate.Enabled(features.EnableEquivalenceClassCache),
|
|
false,
|
|
)
|
|
}
|
|
|
|
// initTestMasterAndScheduler initializes a test environment and creates a master with default
|
|
// configuration.
|
|
func initTestMaster(t *testing.T, nsPrefix string, admission admission.Interface) *TestContext {
|
|
var context TestContext
|
|
|
|
// 1. Create master
|
|
h := &framework.MasterHolder{Initialized: make(chan struct{})}
|
|
s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
|
|
<-h.Initialized
|
|
h.M.GenericAPIServer.Handler.ServeHTTP(w, req)
|
|
}))
|
|
|
|
masterConfig := framework.NewIntegrationTestMasterConfig()
|
|
|
|
if admission != nil {
|
|
masterConfig.GenericConfig.AdmissionControl = admission
|
|
}
|
|
|
|
_, context.httpServer, context.closeFn = framework.RunAMasterUsingServer(masterConfig, s, h)
|
|
|
|
if nsPrefix != "default" {
|
|
context.ns = framework.CreateTestingNamespace(nsPrefix+string(uuid.NewUUID()), s, t)
|
|
} else {
|
|
context.ns = framework.CreateTestingNamespace("default", s, t)
|
|
}
|
|
|
|
// 2. Create kubeclient
|
|
context.clientSet = clientset.NewForConfigOrDie(
|
|
&restclient.Config{
|
|
QPS: -1, Host: s.URL,
|
|
ContentConfig: restclient.ContentConfig{
|
|
GroupVersion: &schema.GroupVersion{Group: "", Version: "v1"},
|
|
},
|
|
},
|
|
)
|
|
return &context
|
|
}
|
|
|
|
// initTestScheduler initializes a test environment and creates a scheduler with default
|
|
// configuration.
|
|
func initTestScheduler(
|
|
t *testing.T,
|
|
context *TestContext,
|
|
controllerCh chan struct{},
|
|
setPodInformer bool,
|
|
policy *schedulerapi.Policy,
|
|
) *TestContext {
|
|
// Pod preemption is enabled by default scheduler configuration, but preemption only happens when PodPriority
|
|
// feature gate is enabled at the same time.
|
|
return initTestSchedulerWithOptions(t, context, controllerCh, setPodInformer, policy, false)
|
|
}
|
|
|
|
// initTestSchedulerWithOptions initializes a test environment and creates a scheduler with default
|
|
// configuration and other options.
|
|
func initTestSchedulerWithOptions(
|
|
t *testing.T,
|
|
context *TestContext,
|
|
controllerCh chan struct{},
|
|
setPodInformer bool,
|
|
policy *schedulerapi.Policy,
|
|
disablePreemption bool,
|
|
) *TestContext {
|
|
// Enable EnableEquivalenceClassCache for all integration tests.
|
|
defer utilfeaturetesting.SetFeatureGateDuringTest(
|
|
t,
|
|
utilfeature.DefaultFeatureGate,
|
|
features.EnableEquivalenceClassCache, true)()
|
|
|
|
// 1. Create scheduler
|
|
context.informerFactory = informers.NewSharedInformerFactory(context.clientSet, time.Second)
|
|
|
|
var podInformer coreinformers.PodInformer
|
|
|
|
// create independent pod informer if required
|
|
if setPodInformer {
|
|
podInformer = factory.NewPodInformer(context.clientSet, 12*time.Hour)
|
|
} else {
|
|
podInformer = context.informerFactory.Core().V1().Pods()
|
|
}
|
|
|
|
context.schedulerConfigFactory = createConfiguratorWithPodInformer(
|
|
v1.DefaultSchedulerName, context.clientSet, podInformer, context.informerFactory)
|
|
|
|
var err error
|
|
|
|
if policy != nil {
|
|
context.schedulerConfig, err = context.schedulerConfigFactory.CreateFromConfig(*policy)
|
|
} else {
|
|
context.schedulerConfig, err = context.schedulerConfigFactory.Create()
|
|
}
|
|
|
|
if err != nil {
|
|
t.Fatalf("Couldn't create scheduler config: %v", err)
|
|
}
|
|
|
|
// set controllerCh if provided.
|
|
if controllerCh != nil {
|
|
context.schedulerConfig.StopEverything = controllerCh
|
|
}
|
|
|
|
// set DisablePreemption option
|
|
context.schedulerConfig.DisablePreemption = disablePreemption
|
|
|
|
// set setPodInformer if provided.
|
|
if setPodInformer {
|
|
go podInformer.Informer().Run(context.schedulerConfig.StopEverything)
|
|
controller.WaitForCacheSync("scheduler", context.schedulerConfig.StopEverything, podInformer.Informer().HasSynced)
|
|
}
|
|
|
|
eventBroadcaster := record.NewBroadcaster()
|
|
context.schedulerConfig.Recorder = eventBroadcaster.NewRecorder(
|
|
legacyscheme.Scheme,
|
|
v1.EventSource{Component: v1.DefaultSchedulerName},
|
|
)
|
|
eventBroadcaster.StartRecordingToSink(&clientv1core.EventSinkImpl{
|
|
Interface: context.clientSet.CoreV1().Events(""),
|
|
})
|
|
|
|
context.informerFactory.Start(context.schedulerConfig.StopEverything)
|
|
context.informerFactory.WaitForCacheSync(context.schedulerConfig.StopEverything)
|
|
|
|
context.scheduler, err = scheduler.NewFromConfigurator(&scheduler.FakeConfigurator{
|
|
Config: context.schedulerConfig},
|
|
nil...)
|
|
if err != nil {
|
|
t.Fatalf("Couldn't create scheduler: %v", err)
|
|
}
|
|
context.scheduler.Run()
|
|
return context
|
|
}
|
|
|
|
// initDisruptionController initializes and runs a Disruption Controller to properly
|
|
// update PodDisuptionBudget objects.
|
|
func initDisruptionController(context *TestContext) *disruption.DisruptionController {
|
|
informers := informers.NewSharedInformerFactory(context.clientSet, 12*time.Hour)
|
|
|
|
dc := disruption.NewDisruptionController(
|
|
informers.Core().V1().Pods(),
|
|
informers.Policy().V1beta1().PodDisruptionBudgets(),
|
|
informers.Core().V1().ReplicationControllers(),
|
|
informers.Extensions().V1beta1().ReplicaSets(),
|
|
informers.Extensions().V1beta1().Deployments(),
|
|
informers.Apps().V1beta1().StatefulSets(),
|
|
context.clientSet)
|
|
|
|
informers.Start(context.schedulerConfig.StopEverything)
|
|
informers.WaitForCacheSync(context.schedulerConfig.StopEverything)
|
|
go dc.Run(context.schedulerConfig.StopEverything)
|
|
return dc
|
|
}
|
|
|
|
// initTest initializes a test environment and creates master and scheduler with default
|
|
// configuration.
|
|
func initTest(t *testing.T, nsPrefix string) *TestContext {
|
|
return initTestScheduler(t, initTestMaster(t, nsPrefix, nil), nil, true, nil)
|
|
}
|
|
|
|
// initTestDisablePreemption initializes a test environment and creates master and scheduler with default
|
|
// configuration but with pod preemption disabled.
|
|
func initTestDisablePreemption(t *testing.T, nsPrefix string) *TestContext {
|
|
return initTestSchedulerWithOptions(
|
|
t, initTestMaster(t, nsPrefix, nil), nil, true, nil, true)
|
|
}
|
|
|
|
// cleanupTest deletes the scheduler and the test namespace. It should be called
|
|
// at the end of a test.
|
|
func cleanupTest(t *testing.T, context *TestContext) {
|
|
// Kill the scheduler.
|
|
close(context.schedulerConfig.StopEverything)
|
|
// Cleanup nodes.
|
|
context.clientSet.CoreV1().Nodes().DeleteCollection(nil, metav1.ListOptions{})
|
|
framework.DeleteTestingNamespace(context.ns, context.httpServer, t)
|
|
context.closeFn()
|
|
}
|
|
|
|
// waitForReflection waits till the passFunc confirms that the object it expects
|
|
// to see is in the store. Used to observe reflected events.
|
|
func waitForReflection(t *testing.T, nodeLister corelisters.NodeLister, key string,
|
|
passFunc func(n interface{}) bool) error {
|
|
nodes := []*v1.Node{}
|
|
err := wait.Poll(time.Millisecond*100, wait.ForeverTestTimeout, func() (bool, error) {
|
|
n, err := nodeLister.Get(key)
|
|
|
|
switch {
|
|
case err == nil && passFunc(n):
|
|
return true, nil
|
|
case errors.IsNotFound(err):
|
|
nodes = append(nodes, nil)
|
|
case err != nil:
|
|
t.Errorf("Unexpected error: %v", err)
|
|
default:
|
|
nodes = append(nodes, n)
|
|
}
|
|
|
|
return false, nil
|
|
})
|
|
if err != nil {
|
|
t.Logf("Logging consecutive node versions received from store:")
|
|
for i, n := range nodes {
|
|
t.Logf("%d: %#v", i, n)
|
|
}
|
|
}
|
|
return err
|
|
}
|
|
|
|
// nodeHasLabels returns a function that checks if a node has all the given labels.
|
|
func nodeHasLabels(cs clientset.Interface, nodeName string, labels map[string]string) wait.ConditionFunc {
|
|
return func() (bool, error) {
|
|
node, err := cs.CoreV1().Nodes().Get(nodeName, metav1.GetOptions{})
|
|
if errors.IsNotFound(err) {
|
|
return false, nil
|
|
}
|
|
if err != nil {
|
|
// This could be a connection error so we want to retry.
|
|
return false, nil
|
|
}
|
|
for k, v := range labels {
|
|
if node.Labels == nil || node.Labels[k] != v {
|
|
return false, nil
|
|
}
|
|
}
|
|
return true, nil
|
|
}
|
|
}
|
|
|
|
// waitForNodeLabels waits for the given node to have all the given labels.
|
|
func waitForNodeLabels(cs clientset.Interface, nodeName string, labels map[string]string) error {
|
|
return wait.Poll(time.Millisecond*100, wait.ForeverTestTimeout, nodeHasLabels(cs, nodeName, labels))
|
|
}
|
|
|
|
// createNode creates a node with the given resource list and
|
|
// returns a pointer and error status. If 'res' is nil, a predefined amount of
|
|
// resource will be used.
|
|
func createNode(cs clientset.Interface, name string, res *v1.ResourceList) (*v1.Node, error) {
|
|
// if resource is nil, we use a default amount of resources for the node.
|
|
if res == nil {
|
|
res = &v1.ResourceList{
|
|
v1.ResourcePods: *resource.NewQuantity(32, resource.DecimalSI),
|
|
}
|
|
}
|
|
n := &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{Name: name},
|
|
Spec: v1.NodeSpec{Unschedulable: false},
|
|
Status: v1.NodeStatus{
|
|
Capacity: *res,
|
|
},
|
|
}
|
|
return cs.CoreV1().Nodes().Create(n)
|
|
}
|
|
|
|
// updateNodeStatus updates the status of node.
|
|
func updateNodeStatus(cs clientset.Interface, node *v1.Node) error {
|
|
_, err := cs.CoreV1().Nodes().UpdateStatus(node)
|
|
return err
|
|
}
|
|
|
|
// createNodes creates `numNodes` nodes. The created node names will be in the
|
|
// form of "`prefix`-X" where X is an ordinal.
|
|
func createNodes(cs clientset.Interface, prefix string, res *v1.ResourceList, numNodes int) ([]*v1.Node, error) {
|
|
nodes := make([]*v1.Node, numNodes)
|
|
for i := 0; i < numNodes; i++ {
|
|
nodeName := fmt.Sprintf("%v-%d", prefix, i)
|
|
node, err := createNode(cs, nodeName, res)
|
|
if err != nil {
|
|
return nodes[:], err
|
|
}
|
|
nodes[i] = node
|
|
}
|
|
return nodes[:], nil
|
|
}
|
|
|
|
type pausePodConfig struct {
|
|
Name string
|
|
Namespace string
|
|
Affinity *v1.Affinity
|
|
Annotations, Labels, NodeSelector map[string]string
|
|
Resources *v1.ResourceRequirements
|
|
Tolerations []v1.Toleration
|
|
NodeName string
|
|
SchedulerName string
|
|
Priority *int32
|
|
}
|
|
|
|
// initPausePod initializes a pod API object from the given config. It is used
|
|
// mainly in pod creation process.
|
|
func initPausePod(cs clientset.Interface, conf *pausePodConfig) *v1.Pod {
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: conf.Name,
|
|
Namespace: conf.Namespace,
|
|
Labels: conf.Labels,
|
|
Annotations: conf.Annotations,
|
|
},
|
|
Spec: v1.PodSpec{
|
|
NodeSelector: conf.NodeSelector,
|
|
Affinity: conf.Affinity,
|
|
Containers: []v1.Container{
|
|
{
|
|
Name: conf.Name,
|
|
Image: imageutils.GetPauseImageName(),
|
|
},
|
|
},
|
|
Tolerations: conf.Tolerations,
|
|
NodeName: conf.NodeName,
|
|
SchedulerName: conf.SchedulerName,
|
|
Priority: conf.Priority,
|
|
},
|
|
}
|
|
if conf.Resources != nil {
|
|
pod.Spec.Containers[0].Resources = *conf.Resources
|
|
}
|
|
return pod
|
|
}
|
|
|
|
// createPausePod creates a pod with "Pause" image and the given config and
|
|
// return its pointer and error status.
|
|
func createPausePod(cs clientset.Interface, p *v1.Pod) (*v1.Pod, error) {
|
|
return cs.CoreV1().Pods(p.Namespace).Create(p)
|
|
}
|
|
|
|
// createPausePodWithResource creates a pod with "Pause" image and the given
|
|
// resources and returns its pointer and error status. The resource list can be
|
|
// nil.
|
|
func createPausePodWithResource(cs clientset.Interface, podName string,
|
|
nsName string, res *v1.ResourceList) (*v1.Pod, error) {
|
|
var conf pausePodConfig
|
|
if res == nil {
|
|
conf = pausePodConfig{
|
|
Name: podName,
|
|
Namespace: nsName,
|
|
}
|
|
} else {
|
|
conf = pausePodConfig{
|
|
Name: podName,
|
|
Namespace: nsName,
|
|
Resources: &v1.ResourceRequirements{
|
|
Requests: *res,
|
|
},
|
|
}
|
|
}
|
|
return createPausePod(cs, initPausePod(cs, &conf))
|
|
}
|
|
|
|
// runPausePod creates a pod with "Pause" image and the given config and waits
|
|
// until it is scheduled. It returns its pointer and error status.
|
|
func runPausePod(cs clientset.Interface, pod *v1.Pod) (*v1.Pod, error) {
|
|
pod, err := cs.CoreV1().Pods(pod.Namespace).Create(pod)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Error creating pause pod: %v", err)
|
|
}
|
|
if err = waitForPodToSchedule(cs, pod); err != nil {
|
|
return pod, fmt.Errorf("Pod %v didn't schedule successfully. Error: %v", pod.Name, err)
|
|
}
|
|
if pod, err = cs.CoreV1().Pods(pod.Namespace).Get(pod.Name, metav1.GetOptions{}); err != nil {
|
|
return pod, fmt.Errorf("Error getting pod %v info: %v", pod.Name, err)
|
|
}
|
|
return pod, nil
|
|
}
|
|
|
|
// podDeleted returns true if a pod is not found in the given namespace.
|
|
func podDeleted(c clientset.Interface, podNamespace, podName string) wait.ConditionFunc {
|
|
return func() (bool, error) {
|
|
pod, err := c.CoreV1().Pods(podNamespace).Get(podName, metav1.GetOptions{})
|
|
if errors.IsNotFound(err) {
|
|
return true, nil
|
|
}
|
|
if pod.DeletionTimestamp != nil {
|
|
return true, nil
|
|
}
|
|
return false, nil
|
|
}
|
|
}
|
|
|
|
// podIsGettingEvicted returns true if the pod's deletion timestamp is set.
|
|
func podIsGettingEvicted(c clientset.Interface, podNamespace, podName string) wait.ConditionFunc {
|
|
return func() (bool, error) {
|
|
pod, err := c.CoreV1().Pods(podNamespace).Get(podName, metav1.GetOptions{})
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
if pod.DeletionTimestamp != nil {
|
|
return true, nil
|
|
}
|
|
return false, nil
|
|
}
|
|
}
|
|
|
|
// podScheduled returns true if a node is assigned to the given pod.
|
|
func podScheduled(c clientset.Interface, podNamespace, podName string) wait.ConditionFunc {
|
|
return func() (bool, error) {
|
|
pod, err := c.CoreV1().Pods(podNamespace).Get(podName, metav1.GetOptions{})
|
|
if errors.IsNotFound(err) {
|
|
return false, nil
|
|
}
|
|
if err != nil {
|
|
// This could be a connection error so we want to retry.
|
|
return false, nil
|
|
}
|
|
if pod.Spec.NodeName == "" {
|
|
return false, nil
|
|
}
|
|
return true, nil
|
|
}
|
|
}
|
|
|
|
// podUnschedulable returns a condition function that returns true if the given pod
|
|
// gets unschedulable status.
|
|
func podUnschedulable(c clientset.Interface, podNamespace, podName string) wait.ConditionFunc {
|
|
return func() (bool, error) {
|
|
pod, err := c.CoreV1().Pods(podNamespace).Get(podName, metav1.GetOptions{})
|
|
if errors.IsNotFound(err) {
|
|
return false, nil
|
|
}
|
|
if err != nil {
|
|
// This could be a connection error so we want to retry.
|
|
return false, nil
|
|
}
|
|
_, cond := podutil.GetPodCondition(&pod.Status, v1.PodScheduled)
|
|
return cond != nil && cond.Status == v1.ConditionFalse &&
|
|
cond.Reason == v1.PodReasonUnschedulable, nil
|
|
}
|
|
}
|
|
|
|
// waitForPodToScheduleWithTimeout waits for a pod to get scheduled and returns
|
|
// an error if it does not scheduled within the given timeout.
|
|
func waitForPodToScheduleWithTimeout(cs clientset.Interface, pod *v1.Pod, timeout time.Duration) error {
|
|
return wait.Poll(100*time.Millisecond, timeout, podScheduled(cs, pod.Namespace, pod.Name))
|
|
}
|
|
|
|
// waitForPodToSchedule waits for a pod to get scheduled and returns an error if
|
|
// it does not get scheduled within the timeout duration (30 seconds).
|
|
func waitForPodToSchedule(cs clientset.Interface, pod *v1.Pod) error {
|
|
return waitForPodToScheduleWithTimeout(cs, pod, 30*time.Second)
|
|
}
|
|
|
|
// waitForPodUnscheduleWithTimeout waits for a pod to fail scheduling and returns
|
|
// an error if it does not become unschedulable within the given timeout.
|
|
func waitForPodUnschedulableWithTimeout(cs clientset.Interface, pod *v1.Pod, timeout time.Duration) error {
|
|
return wait.Poll(100*time.Millisecond, timeout, podUnschedulable(cs, pod.Namespace, pod.Name))
|
|
}
|
|
|
|
// waitForPodUnschedule waits for a pod to fail scheduling and returns
|
|
// an error if it does not become unschedulable within the timeout duration (30 seconds).
|
|
func waitForPodUnschedulable(cs clientset.Interface, pod *v1.Pod) error {
|
|
return waitForPodUnschedulableWithTimeout(cs, pod, 30*time.Second)
|
|
}
|
|
|
|
// waitCachedPDBsStable waits for PDBs in scheduler cache to have "CurrentHealthy" status equal to
|
|
// the expected values.
|
|
func waitCachedPDBsStable(context *TestContext, pdbs []*policy.PodDisruptionBudget, pdbPodNum []int32) error {
|
|
return wait.Poll(time.Second, 60*time.Second, func() (bool, error) {
|
|
cachedPDBs, err := context.scheduler.Config().SchedulerCache.ListPDBs(labels.Everything())
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
if len(cachedPDBs) != len(pdbs) {
|
|
return false, nil
|
|
}
|
|
for i, pdb := range pdbs {
|
|
found := false
|
|
for _, cpdb := range cachedPDBs {
|
|
if pdb.Name == cpdb.Name && pdb.Namespace == cpdb.Namespace {
|
|
found = true
|
|
if cpdb.Status.CurrentHealthy != pdbPodNum[i] {
|
|
return false, nil
|
|
}
|
|
}
|
|
}
|
|
if !found {
|
|
return false, nil
|
|
}
|
|
}
|
|
return true, nil
|
|
})
|
|
}
|
|
|
|
// waitCachedPodsStable waits until scheduler cache has the given pods.
|
|
func waitCachedPodsStable(context *TestContext, pods []*v1.Pod) error {
|
|
return wait.Poll(time.Second, 30*time.Second, func() (bool, error) {
|
|
cachedPods, err := context.scheduler.Config().SchedulerCache.List(labels.Everything())
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
if len(pods) != len(cachedPods) {
|
|
return false, nil
|
|
}
|
|
for _, p := range pods {
|
|
actualPod, err1 := context.clientSet.CoreV1().Pods(p.Namespace).Get(p.Name, metav1.GetOptions{})
|
|
if err1 != nil {
|
|
return false, err1
|
|
}
|
|
cachedPod, err2 := context.scheduler.Config().SchedulerCache.GetPod(actualPod)
|
|
if err2 != nil || cachedPod == nil {
|
|
return false, err2
|
|
}
|
|
}
|
|
return true, nil
|
|
})
|
|
}
|
|
|
|
// deletePod deletes the given pod in the given namespace.
|
|
func deletePod(cs clientset.Interface, podName string, nsName string) error {
|
|
return cs.CoreV1().Pods(nsName).Delete(podName, metav1.NewDeleteOptions(0))
|
|
}
|
|
|
|
// cleanupPods deletes the given pods and waits for them to be actually deleted.
|
|
func cleanupPods(cs clientset.Interface, t *testing.T, pods []*v1.Pod) {
|
|
for _, p := range pods {
|
|
err := cs.CoreV1().Pods(p.Namespace).Delete(p.Name, metav1.NewDeleteOptions(0))
|
|
if err != nil && !errors.IsNotFound(err) {
|
|
t.Errorf("error while deleting pod %v/%v: %v", p.Namespace, p.Name, err)
|
|
}
|
|
}
|
|
for _, p := range pods {
|
|
if err := wait.Poll(time.Second, wait.ForeverTestTimeout,
|
|
podDeleted(cs, p.Namespace, p.Name)); err != nil {
|
|
t.Errorf("error while waiting for pod %v/%v to get deleted: %v", p.Namespace, p.Name, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
// noPodsInNamespace returns true if no pods in the given namespace.
|
|
func noPodsInNamespace(c clientset.Interface, podNamespace string) wait.ConditionFunc {
|
|
return func() (bool, error) {
|
|
pods, err := c.CoreV1().Pods(podNamespace).List(metav1.ListOptions{})
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
return len(pods.Items) == 0, nil
|
|
}
|
|
}
|
|
|
|
// cleanupPodsInNamespace deletes the pods in the given namespace and waits for them to
|
|
// be actually deleted.
|
|
func cleanupPodsInNamespace(cs clientset.Interface, t *testing.T, ns string) {
|
|
if err := cs.CoreV1().Pods(ns).DeleteCollection(nil, metav1.ListOptions{}); err != nil {
|
|
t.Errorf("error while listing pod in namespace %v: %v", ns, err)
|
|
return
|
|
}
|
|
|
|
if err := wait.Poll(time.Second, wait.ForeverTestTimeout,
|
|
noPodsInNamespace(cs, ns)); err != nil {
|
|
t.Errorf("error while waiting for pods in namespace %v: %v", ns, err)
|
|
}
|
|
}
|