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Add logic to account for pods nominated to run on nodes, but are not running yet.

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Add tests for the new logic.
This commit is contained in:
Bobby (Babak) Salamat
2017-11-07 17:09:21 -08:00
parent 2cbb07a439
commit 8a17ae241d
12 changed files with 853 additions and 388 deletions
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47
test/integration/scheduler/util.go
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@@ -27,14 +27,14 @@ import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/uuid"
"k8s.io/apimachinery/pkg/util/wait"
informers "k8s.io/client-go/informers"
"k8s.io/client-go/informers"
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"
"k8s.io/kubernetes/pkg/api/testapi"
podutil "k8s.io/kubernetes/pkg/api/v1/pod"
"k8s.io/kubernetes/plugin/pkg/scheduler"
_ "k8s.io/kubernetes/plugin/pkg/scheduler/algorithmprovider"
"k8s.io/kubernetes/plugin/pkg/scheduler/factory"
@@ -58,13 +58,14 @@ type TestContext struct {
// configuration.
func initTest(t *testing.T, nsPrefix string) *TestContext {
var context TestContext
_, context.httpServer, context.closeFn = framework.RunAMaster(nil)
masterConfig := framework.NewIntegrationTestMasterConfig()
_, context.httpServer, context.closeFn = framework.RunAMaster(masterConfig)
context.ns = framework.CreateTestingNamespace(nsPrefix+string(uuid.NewUUID()), context.httpServer, t)
context.clientSet = clientset.NewForConfigOrDie(&restclient.Config{Host: context.httpServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Groups[v1.GroupName].GroupVersion()}})
context.clientSet = clientset.NewForConfigOrDie(&restclient.Config{Host: context.httpServer.URL})
context.informerFactory = informers.NewSharedInformerFactory(context.clientSet, 0)
podInformer := factory.NewPodInformer(context.clientSet, 30*time.Second, v1.DefaultSchedulerName)
podInformer := factory.NewPodInformer(context.clientSet, 12*time.Hour, v1.DefaultSchedulerName)
context.schedulerConfigFactory = factory.NewConfigFactory(
v1.DefaultSchedulerName,
context.clientSet,
@@ -289,10 +290,10 @@ func runPausePod(cs clientset.Interface, pod *v1.Pod) (*v1.Pod, error) {
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 pod.DeletionTimestamp != nil {
if errors.IsNotFound(err) {
return true, nil
}
if errors.IsNotFound(err) {
if pod.DeletionTimestamp != nil {
return true, nil
}
return false, nil
@@ -331,6 +332,23 @@ func podScheduled(c clientset.Interface, podNamespace, podName string) wait.Cond
}
}
// 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 {
@@ -348,6 +366,21 @@ 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)
}
}
}
// printAllPods prints a list of all the pods and their node names. This is used
// for debugging.
func printAllPods(t *testing.T, cs clientset.Interface, nsName string) {