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8db90f1ee6
Chunking is now beta and on by default. The kops job is still using etcd2 which does not support chunking, so flag the test as skipped until kops is updated to a supported etcd version.
105 lines
3.2 KiB
Go
105 lines
3.2 KiB
Go
/*
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Copyright 2017 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 apimachinery
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import (
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"fmt"
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"math/rand"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/client-go/util/workqueue"
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"k8s.io/kubernetes/test/e2e/framework"
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)
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const numberOfTotalResources = 400
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var _ = SIGDescribe("Servers with support for API chunking", func() {
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f := framework.NewDefaultFramework("chunking")
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It("should return chunks of results for list calls", func() {
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ns := f.Namespace.Name
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c := f.ClientSet
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client := c.CoreV1().PodTemplates(ns)
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By("creating a large number of resources")
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workqueue.Parallelize(20, numberOfTotalResources, func(i int) {
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for tries := 3; tries >= 0; tries-- {
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_, err := client.Create(&v1.PodTemplate{
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ObjectMeta: metav1.ObjectMeta{
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Name: fmt.Sprintf("template-%04d", i),
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},
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Template: v1.PodTemplateSpec{
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{Name: "test", Image: "test2"},
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},
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},
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},
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})
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if err == nil {
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return
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}
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framework.Logf("Got an error creating template %d: %v", i, err)
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}
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Fail("Unable to create template %d, exiting", i)
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})
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By("retrieving those results in paged fashion several times")
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for i := 0; i < 3; i++ {
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opts := metav1.ListOptions{}
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found := 0
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var lastRV string
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for {
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opts.Limit = int64(rand.Int31n(numberOfTotalResources/10) + 1)
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list, err := client.List(opts)
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Expect(err).ToNot(HaveOccurred())
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framework.Logf("Retrieved %d/%d results with rv %s and continue %s", len(list.Items), opts.Limit, list.ResourceVersion, list.Continue)
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// TODO: kops PR job is still using etcd2, which prevents this feature from working. Remove this check when kops is upgraded to etcd3
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if len(list.Items) > int(opts.Limit) {
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framework.Skipf("ERROR: This cluster does not support chunking, which means it is running etcd2 and not supported.")
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}
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Expect(len(list.Items)).To(BeNumerically("<=", opts.Limit))
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if len(lastRV) == 0 {
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lastRV = list.ResourceVersion
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}
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if lastRV != list.ResourceVersion {
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Expect(list.ResourceVersion).To(Equal(lastRV))
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}
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for _, item := range list.Items {
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Expect(item.Name).To(Equal(fmt.Sprintf("template-%04d", found)))
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found++
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}
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if len(list.Continue) == 0 {
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break
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}
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opts.Continue = list.Continue
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}
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Expect(found).To(BeNumerically("==", numberOfTotalResources))
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}
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By("retrieving those results all at once")
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list, err := client.List(metav1.ListOptions{Limit: numberOfTotalResources + 1})
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Expect(err).ToNot(HaveOccurred())
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Expect(list.Items).To(HaveLen(numberOfTotalResources))
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})
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})
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