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105 lines
3.0 KiB
Go
105 lines
3.0 KiB
Go
/*
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Copyright 2015 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 node
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import (
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"context"
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"fmt"
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"time"
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"github.com/onsi/ginkgo"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/uuid"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/kubernetes/test/e2e/framework"
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imageutils "k8s.io/kubernetes/test/utils/image"
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)
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// This test requires that --terminated-pod-gc-threshold=100 be set on the controller manager
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//
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// Slow by design (7 min)
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var _ = SIGDescribe("Pod garbage collector [Feature:PodGarbageCollector] [Slow]", func() {
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f := framework.NewDefaultFramework("pod-garbage-collector")
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ginkgo.It("should handle the creation of 1000 pods", func() {
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var count int
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for count < 1000 {
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pod, err := createTerminatingPod(f)
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if err != nil {
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framework.Failf("err creating pod: %v", err)
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}
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pod.ResourceVersion = ""
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pod.Status.Phase = v1.PodFailed
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_, err = f.ClientSet.CoreV1().Pods(f.Namespace.Name).UpdateStatus(context.TODO(), pod, metav1.UpdateOptions{})
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if err != nil {
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framework.Failf("err failing pod: %v", err)
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}
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count++
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if count%50 == 0 {
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framework.Logf("count: %v", count)
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}
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}
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framework.Logf("created: %v", count)
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// The gc controller polls every 30s and fires off a goroutine per
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// pod to terminate.
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var err error
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var pods *v1.PodList
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timeout := 2 * time.Minute
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gcThreshold := 100
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ginkgo.By(fmt.Sprintf("Waiting for gc controller to gc all but %d pods", gcThreshold))
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pollErr := wait.Poll(1*time.Minute, timeout, func() (bool, error) {
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pods, err = f.ClientSet.CoreV1().Pods(f.Namespace.Name).List(context.TODO(), metav1.ListOptions{})
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if err != nil {
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framework.Logf("Failed to list pod %v", err)
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return false, nil
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}
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if len(pods.Items) != gcThreshold {
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framework.Logf("Number of observed pods %v, waiting for %v", len(pods.Items), gcThreshold)
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return false, nil
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}
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return true, nil
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})
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if pollErr != nil {
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framework.Failf("Failed to GC pods within %v, %v pods remaining, error: %v", timeout, len(pods.Items), err)
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}
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})
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})
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func createTerminatingPod(f *framework.Framework) (*v1.Pod, error) {
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uuid := uuid.NewUUID()
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: string(uuid),
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: string(uuid),
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Image: imageutils.GetE2EImage(imageutils.BusyBox),
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},
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},
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SchedulerName: "please don't schedule my pods",
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},
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}
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return f.ClientSet.CoreV1().Pods(f.Namespace.Name).Create(context.TODO(), pod, metav1.CreateOptions{})
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}
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