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Merge pull request #57570 from sbezverk/local_pv_integration_test
Automatic merge from submit-queue (batch tested with PRs 56971, 57570, 57830, 57742). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Add local PV negative scheduling tests to integration testing Closes: #56088 ```release-note Move local PV negative scheduling tests to integration ```
This commit is contained in:
Kubernetes Submit Queue
GitHub
commit
8c6f770eec
@ -11,6 +11,7 @@ go_test(
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size = "large",
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srcs = [
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"extender_test.go",
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"local-pv-neg-affinity_test.go",
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"main_test.go",
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"predicates_test.go",
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"preemption_test.go",
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322
test/integration/scheduler/local-pv-neg-affinity_test.go
Normal file
322
test/integration/scheduler/local-pv-neg-affinity_test.go
Normal file
@ -0,0 +1,322 @@
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/*
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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 scheduler
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// This file tests the VolumeScheduling feature.
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"net/http/httptest"
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"strconv"
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"strings"
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"testing"
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"time"
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"k8s.io/api/core/v1"
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storagev1 "k8s.io/api/storage/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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"k8s.io/client-go/informers"
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clientset "k8s.io/client-go/kubernetes"
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v1core "k8s.io/client-go/kubernetes/typed/core/v1"
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restclient "k8s.io/client-go/rest"
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"k8s.io/client-go/tools/record"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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"k8s.io/kubernetes/pkg/api/testapi"
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"k8s.io/kubernetes/pkg/apis/core/v1/helper"
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"k8s.io/kubernetes/pkg/controller/volume/persistentvolume"
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"k8s.io/kubernetes/plugin/pkg/scheduler"
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"k8s.io/kubernetes/plugin/pkg/scheduler/factory"
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"k8s.io/kubernetes/test/integration/framework"
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)
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const (
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affinityLabelKey = "kubernetes.io/hostname"
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)
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func TestLocalPVNegativeAffinity(t *testing.T) {
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config := setupNodes(t, "volume-scheduling", 3)
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defer config.teardown()
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pv := makeHostBoundPV(t, "local-pv", classImmediate, "", "", "node-1")
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pvc := makePVC("local-pvc", config.ns, &classImmediate, "")
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// Create PV
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if _, err := config.client.CoreV1().PersistentVolumes().Create(pv); err != nil {
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t.Fatalf("Failed to create PersistentVolume %q: %v", pv.Name, err)
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}
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// Create PVC
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if _, err := config.client.CoreV1().PersistentVolumeClaims(config.ns).Create(pvc); err != nil {
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t.Fatalf("Failed to create PersistentVolumeClaim %q: %v", pvc.Name, err)
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}
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nodeMarkers := []interface{}{
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markNodeAffinity,
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markNodeSelector,
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}
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for i := 0; i < len(nodeMarkers); i++ {
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podName := "local-pod-" + strconv.Itoa(i+1)
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pod := makePod(podName, config.ns, []string{"local-pvc"})
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nodeMarkers[i].(func(*v1.Pod, string))(pod, "node-2")
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// Create Pod
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if _, err := config.client.CoreV1().Pods(config.ns).Create(pod); err != nil {
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t.Fatalf("Failed to create Pod %q: %v", pod.Name, err)
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}
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// Give time to shceduler to attempt to schedule pod
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if err := waitForPodToSchedule(config.client, pod); err == nil {
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t.Errorf("Failed as Pod %s was scheduled sucessfully but expected to fail", pod.Name)
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}
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// Deleting test pod
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p, err := config.client.CoreV1().Pods(config.ns).Get(podName, metav1.GetOptions{})
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if err != nil {
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t.Fatalf("Failed to access Pod %s status: %v", podName, err)
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}
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if strings.Compare(string(p.Status.Phase), "Pending") != 0 {
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t.Fatalf("Failed as Pod %s was in: %s state and not in expected: Pending state", podName, p.Status.Phase)
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}
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if strings.Compare(p.Status.Conditions[0].Reason, "Unschedulable") != 0 {
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t.Fatalf("Failed as Pod %s reason was: %s but expected: Unschedulable", podName, p.Status.Conditions[0].Reason)
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}
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if !strings.Contains(p.Status.Conditions[0].Message, "MatchNodeSelector") || !strings.Contains(p.Status.Conditions[0].Message, "VolumeNodeAffinityConflict") {
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t.Fatalf("Failed as Pod's %s failure message does not contain expected keywords: MatchNodeSelector, VolumeNodeAffinityConflict", podName)
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}
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if err := config.client.CoreV1().Pods(config.ns).Delete(podName, &metav1.DeleteOptions{}); err != nil {
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t.Fatalf("Failed to delete Pod %s: %v", podName, err)
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}
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}
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}
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func setupNodes(t *testing.T, nsName string, numberOfNodes int) *testConfig {
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h := &framework.MasterHolder{Initialized: make(chan struct{})}
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s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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<-h.Initialized
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h.M.GenericAPIServer.Handler.ServeHTTP(w, req)
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}))
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// Enable feature gates
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utilfeature.DefaultFeatureGate.Set("VolumeScheduling=true,PersistentLocalVolumes=true")
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// Build clientset and informers for controllers.
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clientset := clientset.NewForConfigOrDie(&restclient.Config{QPS: -1, Host: s.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Groups[v1.GroupName].GroupVersion()}})
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informers := informers.NewSharedInformerFactory(clientset, time.Second)
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// Start master
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masterConfig := framework.NewIntegrationTestMasterConfig()
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_, _, closeFn := framework.RunAMasterUsingServer(masterConfig, s, h)
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ns := framework.CreateTestingNamespace(nsName, s, t).Name
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controllerCh := make(chan struct{})
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// Start PV controller for volume binding.
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params := persistentvolume.ControllerParameters{
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KubeClient: clientset,
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SyncPeriod: time.Hour, // test shouldn't need to resync
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VolumePlugins: nil, // TODO; need later for dynamic provisioning
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Cloud: nil,
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ClusterName: "volume-test-cluster",
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VolumeInformer: informers.Core().V1().PersistentVolumes(),
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ClaimInformer: informers.Core().V1().PersistentVolumeClaims(),
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ClassInformer: informers.Storage().V1().StorageClasses(),
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EventRecorder: nil, // TODO: add one so we can test PV events
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EnableDynamicProvisioning: true,
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}
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ctrl, err := persistentvolume.NewController(params)
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if err != nil {
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t.Fatalf("Failed to create PV controller: %v", err)
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}
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go ctrl.Run(controllerCh)
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// Start scheduler
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configurator := factory.NewConfigFactory(
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v1.DefaultSchedulerName,
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clientset,
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informers.Core().V1().Nodes(),
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informers.Core().V1().Pods(),
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informers.Core().V1().PersistentVolumes(),
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informers.Core().V1().PersistentVolumeClaims(),
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informers.Core().V1().ReplicationControllers(),
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informers.Extensions().V1beta1().ReplicaSets(),
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informers.Apps().V1beta1().StatefulSets(),
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informers.Core().V1().Services(),
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informers.Policy().V1beta1().PodDisruptionBudgets(),
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informers.Storage().V1().StorageClasses(),
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v1.DefaultHardPodAffinitySymmetricWeight,
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true, // Enable EqualCache by default.
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)
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eventBroadcaster := record.NewBroadcaster()
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sched, err := scheduler.NewFromConfigurator(configurator, func(cfg *scheduler.Config) {
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cfg.StopEverything = controllerCh
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cfg.Recorder = eventBroadcaster.NewRecorder(legacyscheme.Scheme, v1.EventSource{Component: v1.DefaultSchedulerName})
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eventBroadcaster.StartRecordingToSink(&v1core.EventSinkImpl{Interface: v1core.New(clientset.CoreV1().RESTClient()).Events("")})
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})
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if err != nil {
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t.Fatalf("Failed to create scheduler: %v.", err)
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}
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go sched.Run()
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// Waiting for all controller sync.
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informers.Start(controllerCh)
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informers.WaitForCacheSync(controllerCh)
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// Create shared objects
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// Create nodes
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for i := 0; i < numberOfNodes; i++ {
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testNode := &v1.Node{
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ObjectMeta: metav1.ObjectMeta{
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Name: fmt.Sprintf("node-%d", i+1),
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Labels: map[string]string{affinityLabelKey: fmt.Sprintf("node-%d", i+1)},
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},
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Spec: v1.NodeSpec{Unschedulable: false},
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Status: v1.NodeStatus{
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Capacity: v1.ResourceList{
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v1.ResourcePods: *resource.NewQuantity(podLimit, resource.DecimalSI),
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},
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Conditions: []v1.NodeCondition{
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{
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Type: v1.NodeReady,
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Status: v1.ConditionTrue,
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Reason: fmt.Sprintf("schedulable condition"),
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LastHeartbeatTime: metav1.Time{Time: time.Now()},
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},
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},
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},
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}
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if _, err := clientset.CoreV1().Nodes().Create(testNode); err != nil {
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t.Fatalf("Failed to create Node %q: %v", testNode.Name, err)
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}
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}
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// Create SCs
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scs := []*storagev1.StorageClass{
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makeStorageClass(classImmediate, &modeImmediate),
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}
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for _, sc := range scs {
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if _, err := clientset.StorageV1().StorageClasses().Create(sc); err != nil {
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t.Fatalf("Failed to create StorageClass %q: %v", sc.Name, err)
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}
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}
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return &testConfig{
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client: clientset,
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ns: ns,
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stop: controllerCh,
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teardown: func() {
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clientset.CoreV1().Pods(ns).DeleteCollection(nil, metav1.ListOptions{})
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clientset.CoreV1().PersistentVolumeClaims(ns).DeleteCollection(nil, metav1.ListOptions{})
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clientset.CoreV1().PersistentVolumes().DeleteCollection(nil, metav1.ListOptions{})
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clientset.StorageV1().StorageClasses().DeleteCollection(nil, metav1.ListOptions{})
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clientset.CoreV1().Nodes().DeleteCollection(nil, metav1.ListOptions{})
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close(controllerCh)
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closeFn()
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utilfeature.DefaultFeatureGate.Set("VolumeScheduling=false,LocalPersistentVolumes=false")
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},
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}
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}
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func makeHostBoundPV(t *testing.T, name, scName, pvcName, ns string, node string) *v1.PersistentVolume {
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pv := &v1.PersistentVolume{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Annotations: map[string]string{},
|
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},
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Spec: v1.PersistentVolumeSpec{
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Capacity: v1.ResourceList{
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v1.ResourceName(v1.ResourceStorage): resource.MustParse("5Gi"),
|
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},
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AccessModes: []v1.PersistentVolumeAccessMode{
|
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v1.ReadWriteOnce,
|
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},
|
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StorageClassName: scName,
|
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PersistentVolumeSource: v1.PersistentVolumeSource{
|
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Local: &v1.LocalVolumeSource{
|
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Path: "/tmp/" + node + "/test-path",
|
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},
|
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},
|
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},
|
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}
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|
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if pvcName != "" {
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pv.Spec.ClaimRef = &v1.ObjectReference{Name: pvcName, Namespace: ns}
|
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}
|
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|
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testNodeAffinity := &v1.NodeAffinity{
|
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RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
|
||||
NodeSelectorTerms: []v1.NodeSelectorTerm{
|
||||
{
|
||||
MatchExpressions: []v1.NodeSelectorRequirement{
|
||||
{
|
||||
Key: affinityLabelKey,
|
||||
Operator: v1.NodeSelectorOpIn,
|
||||
Values: []string{node},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
err := helper.StorageNodeAffinityToAlphaAnnotation(pv.Annotations, testNodeAffinity)
|
||||
if err != nil {
|
||||
t.Fatalf("Setting storage node affinity failed: %v", err)
|
||||
}
|
||||
|
||||
return pv
|
||||
}
|
||||
|
||||
func markNodeAffinity(pod *v1.Pod, node string) {
|
||||
affinity := &v1.Affinity{
|
||||
NodeAffinity: &v1.NodeAffinity{
|
||||
RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
|
||||
NodeSelectorTerms: []v1.NodeSelectorTerm{
|
||||
{
|
||||
MatchExpressions: []v1.NodeSelectorRequirement{
|
||||
{
|
||||
Key: "kubernetes.io/hostname",
|
||||
Operator: v1.NodeSelectorOpIn,
|
||||
Values: []string{node},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
pod.Spec.Affinity = affinity
|
||||
}
|
||||
|
||||
func markNodeSelector(pod *v1.Pod, node string) {
|
||||
ns := map[string]string{
|
||||
"kubernetes.io/hostname": node,
|
||||
}
|
||||
pod.Spec.NodeSelector = ns
|
||||
}
|
||||
|
||||
func printIndentedJson(data interface{}) string {
|
||||
var indentedJSON []byte
|
||||
|
||||
indentedJSON, err := json.MarshalIndent(data, "", "\t")
|
||||
if err != nil {
|
||||
return fmt.Sprintf("JSON parse error: %v", err)
|
||||
}
|
||||
return string(indentedJSON)
|
||||
}
|
||||
@ -20,10 +20,7 @@ package scheduler
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"net/http"
|
||||
"net/http/httptest"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"github.com/golang/glog"
|
||||
|
||||
@ -31,17 +28,8 @@ import (
|
||||
storagev1 "k8s.io/api/storage/v1"
|
||||
"k8s.io/apimachinery/pkg/api/resource"
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
utilfeature "k8s.io/apiserver/pkg/util/feature"
|
||||
"k8s.io/client-go/informers"
|
||||
clientset "k8s.io/client-go/kubernetes"
|
||||
restclient "k8s.io/client-go/rest"
|
||||
"k8s.io/client-go/tools/record"
|
||||
"k8s.io/kubernetes/pkg/api/testapi"
|
||||
"k8s.io/kubernetes/pkg/apis/core/v1/helper"
|
||||
"k8s.io/kubernetes/pkg/controller/volume/persistentvolume"
|
||||
"k8s.io/kubernetes/plugin/pkg/scheduler"
|
||||
"k8s.io/kubernetes/plugin/pkg/scheduler/factory"
|
||||
"k8s.io/kubernetes/test/integration/framework"
|
||||
)
|
||||
|
||||
type testConfig struct {
|
||||
@ -64,15 +52,15 @@ var (
|
||||
)
|
||||
|
||||
const (
|
||||
labelKey = "test-label"
|
||||
labelValue = "test-value"
|
||||
labelKey = "kubernetes.io/hostname"
|
||||
labelValue = "node-1"
|
||||
nodeName = "node1"
|
||||
podLimit = 100
|
||||
volsPerPod = 5
|
||||
)
|
||||
|
||||
func TestVolumeBinding(t *testing.T) {
|
||||
config := setup(t, "volume-scheduling")
|
||||
config := setupNodes(t, "volume-scheduling", 1)
|
||||
defer config.teardown()
|
||||
|
||||
cases := map[string]struct {
|
||||
@ -181,7 +169,7 @@ func TestVolumeBinding(t *testing.T) {
|
||||
|
||||
// TestVolumeBindingStress creates <podLimit> pods, each with <volsPerPod> unbound PVCs.
|
||||
func TestVolumeBindingStress(t *testing.T) {
|
||||
config := setup(t, "volume-binding-stress")
|
||||
config := setupNodes(t, "volume-binding-stress", 1)
|
||||
defer config.teardown()
|
||||
|
||||
// Create enough PVs and PVCs for all the pods
|
||||
@ -235,131 +223,6 @@ func TestVolumeBindingStress(t *testing.T) {
|
||||
// TODO: validate events on Pods and PVCs
|
||||
}
|
||||
|
||||
func setup(t *testing.T, nsName string) *testConfig {
|
||||
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)
|
||||
}))
|
||||
|
||||
// Enable feature gates
|
||||
utilfeature.DefaultFeatureGate.Set("VolumeScheduling=true,PersistentLocalVolumes=true")
|
||||
|
||||
// Build clientset and informers for controllers.
|
||||
clientset := clientset.NewForConfigOrDie(&restclient.Config{QPS: -1, Host: s.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Groups[v1.GroupName].GroupVersion()}})
|
||||
informers := informers.NewSharedInformerFactory(clientset, time.Second)
|
||||
|
||||
// Start master
|
||||
masterConfig := framework.NewIntegrationTestMasterConfig()
|
||||
_, _, closeFn := framework.RunAMasterUsingServer(masterConfig, s, h)
|
||||
ns := framework.CreateTestingNamespace(nsName, s, t).Name
|
||||
|
||||
controllerCh := make(chan struct{})
|
||||
|
||||
// Start PV controller for volume binding.
|
||||
params := persistentvolume.ControllerParameters{
|
||||
KubeClient: clientset,
|
||||
SyncPeriod: time.Hour, // test shouldn't need to resync
|
||||
VolumePlugins: nil, // TODO; need later for dynamic provisioning
|
||||
Cloud: nil,
|
||||
ClusterName: "volume-test-cluster",
|
||||
VolumeInformer: informers.Core().V1().PersistentVolumes(),
|
||||
ClaimInformer: informers.Core().V1().PersistentVolumeClaims(),
|
||||
ClassInformer: informers.Storage().V1().StorageClasses(),
|
||||
EventRecorder: nil, // TODO: add one so we can test PV events
|
||||
EnableDynamicProvisioning: true,
|
||||
}
|
||||
ctrl, err := persistentvolume.NewController(params)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create PV controller: %v", err)
|
||||
}
|
||||
go ctrl.Run(controllerCh)
|
||||
|
||||
// Start scheduler
|
||||
configurator := factory.NewConfigFactory(
|
||||
v1.DefaultSchedulerName,
|
||||
clientset,
|
||||
informers.Core().V1().Nodes(),
|
||||
informers.Core().V1().Pods(),
|
||||
informers.Core().V1().PersistentVolumes(),
|
||||
informers.Core().V1().PersistentVolumeClaims(),
|
||||
informers.Core().V1().ReplicationControllers(),
|
||||
informers.Extensions().V1beta1().ReplicaSets(),
|
||||
informers.Apps().V1beta1().StatefulSets(),
|
||||
informers.Core().V1().Services(),
|
||||
informers.Policy().V1beta1().PodDisruptionBudgets(),
|
||||
informers.Storage().V1().StorageClasses(),
|
||||
v1.DefaultHardPodAffinitySymmetricWeight,
|
||||
true, // Enable EqualCache by default.
|
||||
)
|
||||
|
||||
sched, err := scheduler.NewFromConfigurator(configurator, func(cfg *scheduler.Config) {
|
||||
cfg.StopEverything = controllerCh
|
||||
cfg.Recorder = &record.FakeRecorder{}
|
||||
})
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create scheduler: %v.", err)
|
||||
}
|
||||
go sched.Run()
|
||||
|
||||
// Waiting for all controller sync.
|
||||
informers.Start(controllerCh)
|
||||
informers.WaitForCacheSync(controllerCh)
|
||||
|
||||
// Create shared objects
|
||||
// Create node
|
||||
testNode := &v1.Node{
|
||||
ObjectMeta: metav1.ObjectMeta{
|
||||
Name: nodeName,
|
||||
Labels: map[string]string{labelKey: labelValue},
|
||||
},
|
||||
Spec: v1.NodeSpec{Unschedulable: false},
|
||||
Status: v1.NodeStatus{
|
||||
Capacity: v1.ResourceList{
|
||||
v1.ResourcePods: *resource.NewQuantity(podLimit, resource.DecimalSI),
|
||||
},
|
||||
Conditions: []v1.NodeCondition{
|
||||
{
|
||||
Type: v1.NodeReady,
|
||||
Status: v1.ConditionTrue,
|
||||
Reason: fmt.Sprintf("schedulable condition"),
|
||||
LastHeartbeatTime: metav1.Time{Time: time.Now()},
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
if _, err := clientset.CoreV1().Nodes().Create(testNode); err != nil {
|
||||
t.Fatalf("Failed to create Node %q: %v", testNode.Name, err)
|
||||
}
|
||||
|
||||
// Create SCs
|
||||
scs := []*storagev1.StorageClass{
|
||||
makeStorageClass(classWait, &modeWait),
|
||||
makeStorageClass(classImmediate, &modeImmediate),
|
||||
}
|
||||
for _, sc := range scs {
|
||||
if _, err := clientset.StorageV1().StorageClasses().Create(sc); err != nil {
|
||||
t.Fatalf("Failed to create StorageClass %q: %v", sc.Name, err)
|
||||
}
|
||||
}
|
||||
|
||||
return &testConfig{
|
||||
client: clientset,
|
||||
ns: ns,
|
||||
stop: controllerCh,
|
||||
teardown: func() {
|
||||
clientset.CoreV1().Pods(ns).DeleteCollection(nil, metav1.ListOptions{})
|
||||
clientset.CoreV1().PersistentVolumeClaims(ns).DeleteCollection(nil, metav1.ListOptions{})
|
||||
clientset.CoreV1().PersistentVolumes().DeleteCollection(nil, metav1.ListOptions{})
|
||||
clientset.StorageV1().StorageClasses().DeleteCollection(nil, metav1.ListOptions{})
|
||||
clientset.CoreV1().Nodes().DeleteCollection(nil, metav1.ListOptions{})
|
||||
close(controllerCh)
|
||||
closeFn()
|
||||
utilfeature.DefaultFeatureGate.Set("VolumeScheduling=false,LocalPersistentVolumes=false")
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
func makeStorageClass(name string, mode *storagev1.VolumeBindingMode) *storagev1.StorageClass {
|
||||
return &storagev1.StorageClass{
|
||||
ObjectMeta: metav1.ObjectMeta{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user