mirror of
https://github.com/kubernetes-sigs/descheduler.git
synced 2026-01-26 05:14:13 +01:00
Detect individual extension points from plugin types
- Populate extension points automatically from plugin types - Make a list of enabled extension points based on a profile configuration - Populate filter and pre-eviction filter handles from their corresponding extension points
This commit is contained in:
Jan Chaloupka
@@ -3,12 +3,16 @@ package profile
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import (
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"context"
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"fmt"
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"sort"
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"testing"
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"github.com/google/go-cmp/cmp"
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v1 "k8s.io/api/core/v1"
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policy "k8s.io/api/policy/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/client-go/informers"
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fakeclientset "k8s.io/client-go/kubernetes/fake"
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core "k8s.io/client-go/testing"
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@@ -24,7 +28,7 @@ import (
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testutils "sigs.k8s.io/descheduler/test"
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)
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func TestProfileTopExtensionPoints(t *testing.T) {
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func TestProfileDescheduleBalanceExtensionPointsEviction(t *testing.T) {
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tests := []struct {
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name string
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config api.DeschedulerProfile
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@@ -167,25 +171,25 @@ func TestProfileTopExtensionPoints(t *testing.T) {
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fakePlugin := fakeplugin.FakePlugin{}
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if test.extensionPoint == frameworktypes.DescheduleExtensionPoint {
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fakePlugin.AddReactor(string(frameworktypes.DescheduleExtensionPoint), func(action fakeplugin.Action) (handled bool, err error) {
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fakePlugin.AddReactor(string(frameworktypes.DescheduleExtensionPoint), func(action fakeplugin.Action) (handled, filter bool, err error) {
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if dAction, ok := action.(fakeplugin.DescheduleAction); ok {
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if dAction.Handle().Evictor().Evict(ctx, p1, evictions.EvictOptions{}) {
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return true, nil
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return true, false, nil
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}
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return true, fmt.Errorf("pod not evicted")
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return true, false, fmt.Errorf("pod not evicted")
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}
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return false, nil
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return false, false, nil
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})
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}
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if test.extensionPoint == frameworktypes.BalanceExtensionPoint {
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fakePlugin.AddReactor(string(frameworktypes.BalanceExtensionPoint), func(action fakeplugin.Action) (handled bool, err error) {
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fakePlugin.AddReactor(string(frameworktypes.BalanceExtensionPoint), func(action fakeplugin.Action) (handled, filter bool, err error) {
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if dAction, ok := action.(fakeplugin.BalanceAction); ok {
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if dAction.Handle().Evictor().Evict(ctx, p1, evictions.EvictOptions{}) {
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return true, nil
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return true, false, nil
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}
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return true, fmt.Errorf("pod not evicted")
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return true, false, fmt.Errorf("pod not evicted")
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}
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return false, nil
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return false, false, nil
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})
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}
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@@ -283,3 +287,400 @@ func podEvictionReactionFuc(evictedPods *[]string) func(action core.Action) (boo
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return false, nil, nil // fallback to the default reactor
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}
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}
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func TestProfileExtensionPoints(t *testing.T) {
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ctx, cancel := context.WithCancel(context.TODO())
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defer cancel()
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n1 := testutils.BuildTestNode("n1", 2000, 3000, 10, nil)
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n2 := testutils.BuildTestNode("n2", 2000, 3000, 10, nil)
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nodes := []*v1.Node{n1, n2}
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p1 := testutils.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 200, 0, n1.Name, nil)
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p1.ObjectMeta.OwnerReferences = []metav1.OwnerReference{{}}
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pluginregistry.PluginRegistry = pluginregistry.NewRegistry()
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for i := 0; i < 3; i++ {
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fakePluginName := fmt.Sprintf("FakePlugin_%v", i)
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deschedulePluginName := fmt.Sprintf("DeschedulePlugin_%v", i)
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balancePluginName := fmt.Sprintf("BalancePlugin_%v", i)
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filterPluginName := fmt.Sprintf("FilterPlugin_%v", i)
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fakePlugin := &fakeplugin.FakePlugin{PluginName: fakePluginName}
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fakeDeschedulePlugin := &fakeplugin.FakeDeschedulePlugin{PluginName: deschedulePluginName}
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fakeBalancePlugin := &fakeplugin.FakeBalancePlugin{PluginName: balancePluginName}
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fakeFilterPlugin := &fakeplugin.FakeFilterPlugin{PluginName: filterPluginName}
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pluginregistry.Register(
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fakePluginName,
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fakeplugin.NewPluginFncFromFake(fakePlugin),
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&fakeplugin.FakePlugin{},
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&fakeplugin.FakePluginArgs{},
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fakeplugin.ValidateFakePluginArgs,
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fakeplugin.SetDefaults_FakePluginArgs,
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pluginregistry.PluginRegistry,
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)
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pluginregistry.Register(
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deschedulePluginName,
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fakeplugin.NewFakeDeschedulePluginFncFromFake(fakeDeschedulePlugin),
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&fakeplugin.FakeDeschedulePlugin{},
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&fakeplugin.FakeDeschedulePluginArgs{},
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fakeplugin.ValidateFakePluginArgs,
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fakeplugin.SetDefaults_FakePluginArgs,
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pluginregistry.PluginRegistry,
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)
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pluginregistry.Register(
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balancePluginName,
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fakeplugin.NewFakeBalancePluginFncFromFake(fakeBalancePlugin),
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&fakeplugin.FakeBalancePlugin{},
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&fakeplugin.FakeBalancePluginArgs{},
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fakeplugin.ValidateFakePluginArgs,
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fakeplugin.SetDefaults_FakePluginArgs,
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pluginregistry.PluginRegistry,
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)
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pluginregistry.Register(
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filterPluginName,
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fakeplugin.NewFakeFilterPluginFncFromFake(fakeFilterPlugin),
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&fakeplugin.FakeFilterPlugin{},
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&fakeplugin.FakeFilterPluginArgs{},
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fakeplugin.ValidateFakePluginArgs,
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fakeplugin.SetDefaults_FakePluginArgs,
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pluginregistry.PluginRegistry,
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)
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}
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pluginregistry.Register(
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defaultevictor.PluginName,
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defaultevictor.New,
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&defaultevictor.DefaultEvictor{},
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&defaultevictor.DefaultEvictorArgs{},
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defaultevictor.ValidateDefaultEvictorArgs,
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defaultevictor.SetDefaults_DefaultEvictorArgs,
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pluginregistry.PluginRegistry,
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)
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client := fakeclientset.NewSimpleClientset(n1, n2, p1)
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var evictedPods []string
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client.PrependReactor("create", "pods", podEvictionReactionFuc(&evictedPods))
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sharedInformerFactory := informers.NewSharedInformerFactory(client, 0)
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podInformer := sharedInformerFactory.Core().V1().Pods().Informer()
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getPodsAssignedToNode, err := podutil.BuildGetPodsAssignedToNodeFunc(podInformer)
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if err != nil {
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t.Fatalf("build get pods assigned to node function error: %v", err)
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}
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sharedInformerFactory.Start(ctx.Done())
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sharedInformerFactory.WaitForCacheSync(ctx.Done())
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eventClient := fakeclientset.NewSimpleClientset(n1, n2, p1)
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eventBroadcaster, eventRecorder := utils.GetRecorderAndBroadcaster(ctx, eventClient)
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defer eventBroadcaster.Shutdown()
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podEvictor := evictions.NewPodEvictor(client, "policy/v1", false, nil, nil, nodes, true, eventRecorder)
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prfl, err := NewProfile(
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api.DeschedulerProfile{
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Name: "strategy-test-profile",
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PluginConfigs: []api.PluginConfig{
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{
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Name: defaultevictor.PluginName,
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Args: &defaultevictor.DefaultEvictorArgs{
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PriorityThreshold: &api.PriorityThreshold{
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Value: nil,
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},
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},
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},
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{
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Name: "FakePlugin_0",
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Args: &fakeplugin.FakePluginArgs{},
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},
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{
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Name: "FilterPlugin_0",
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Args: &fakeplugin.FakeFilterPluginArgs{},
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},
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{
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Name: "FilterPlugin_1",
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Args: &fakeplugin.FakeFilterPluginArgs{},
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},
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},
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Plugins: api.Plugins{
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Deschedule: api.PluginSet{
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Enabled: []string{"FakePlugin_0"},
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},
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Filter: api.PluginSet{
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Enabled: []string{"FilterPlugin_1", "FilterPlugin_0"},
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},
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Evict: api.PluginSet{
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Enabled: []string{defaultevictor.PluginName},
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},
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},
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},
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pluginregistry.PluginRegistry,
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WithClientSet(client),
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WithSharedInformerFactory(sharedInformerFactory),
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WithPodEvictor(podEvictor),
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WithGetPodsAssignedToNodeFnc(getPodsAssignedToNode),
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)
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if err != nil {
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t.Fatalf("unable to create profile: %v", err)
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}
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// Validate the extension points of all registered plugins are properly detected
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diff := cmp.Diff(sets.NewString("DeschedulePlugin_0", "DeschedulePlugin_1", "DeschedulePlugin_2", "FakePlugin_0", "FakePlugin_1", "FakePlugin_2"), prfl.deschedule)
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if diff != "" {
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t.Errorf("check for deschedule failed. Results are not deep equal. mismatch (-want +got):\n%s", diff)
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}
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diff = cmp.Diff(sets.NewString("BalancePlugin_0", "BalancePlugin_1", "BalancePlugin_2", "FakePlugin_0", "FakePlugin_1", "FakePlugin_2"), prfl.balance)
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if diff != "" {
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t.Errorf("check for balance failed. Results are not deep equal. mismatch (-want +got):\n%s", diff)
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}
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diff = cmp.Diff(sets.NewString("DefaultEvictor", "FakePlugin_0", "FakePlugin_1", "FakePlugin_2", "FilterPlugin_0", "FilterPlugin_1", "FilterPlugin_2"), prfl.filter)
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if diff != "" {
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t.Errorf("check for filter failed. Results are not deep equal. mismatch (-want +got):\n%s", diff)
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}
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diff = cmp.Diff(sets.NewString("DefaultEvictor", "FakePlugin_0", "FakePlugin_1", "FakePlugin_2", "FilterPlugin_0", "FilterPlugin_1", "FilterPlugin_2"), prfl.preEvictionFilter)
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if diff != "" {
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t.Errorf("check for preEvictionFilter failed. Results are not deep equal. mismatch (-want +got):\n%s", diff)
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}
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// One deschedule ep enabled
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names := []string{}
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for _, pl := range prfl.deschedulePlugins {
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names = append(names, pl.Name())
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}
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sort.Strings(names)
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diff = cmp.Diff(sets.NewString("FakePlugin_0"), sets.NewString(names...))
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if diff != "" {
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t.Errorf("check for deschedule failed. Results are not deep equal. mismatch (-want +got):\n%s", diff)
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}
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// No balance ep enabled
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names = []string{}
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for _, pl := range prfl.balancePlugins {
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names = append(names, pl.Name())
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}
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sort.Strings(names)
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diff = cmp.Diff(sets.NewString(), sets.NewString(names...))
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if diff != "" {
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t.Errorf("check for balance failed. Results are not deep equal. mismatch (-want +got):\n%s", diff)
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}
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// Two filter eps enabled
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names = []string{}
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for _, pl := range prfl.filterPlugins {
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names = append(names, pl.Name())
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}
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sort.Strings(names)
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diff = cmp.Diff(sets.NewString("FilterPlugin_0", "FilterPlugin_1"), sets.NewString(names...))
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if diff != "" {
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t.Errorf("check for filter failed. Results are not deep equal. mismatch (-want +got):\n%s", diff)
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}
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}
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func TestProfileExtensionPointOrdering(t *testing.T) {
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ctx, cancel := context.WithCancel(context.TODO())
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defer cancel()
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n1 := testutils.BuildTestNode("n1", 2000, 3000, 10, nil)
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n2 := testutils.BuildTestNode("n2", 2000, 3000, 10, nil)
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nodes := []*v1.Node{n1, n2}
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p1 := testutils.BuildTestPod(fmt.Sprintf("pod_1_%s", n1.Name), 200, 0, n1.Name, nil)
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p1.ObjectMeta.OwnerReferences = []metav1.OwnerReference{{}}
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pluginregistry.PluginRegistry = pluginregistry.NewRegistry()
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filterInvocationOrder := []string{}
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preEvictionFilterInvocationOrder := []string{}
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descheduleInvocationOrder := []string{}
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balanceInvocationOrder := []string{}
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for i := 0; i < 3; i++ {
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pluginName := fmt.Sprintf("Filter_%v", i)
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fakeFilterPlugin := &fakeplugin.FakeFilterPlugin{PluginName: pluginName}
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fakeFilterPlugin.AddReactor(string(frameworktypes.FilterExtensionPoint), func(action fakeplugin.Action) (handled, filter bool, err error) {
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if _, ok := action.(fakeplugin.FilterAction); ok {
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filterInvocationOrder = append(filterInvocationOrder, pluginName+"_filter")
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return true, true, nil
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}
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return false, false, nil
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})
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fakeFilterPlugin.AddReactor(string(frameworktypes.PreEvictionFilterExtensionPoint), func(action fakeplugin.Action) (handled, filter bool, err error) {
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if _, ok := action.(fakeplugin.PreEvictionFilterAction); ok {
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preEvictionFilterInvocationOrder = append(preEvictionFilterInvocationOrder, pluginName+"_preEvictionFilter")
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return true, true, nil
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}
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return false, false, nil
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})
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// plugin implementing Filter extension point
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pluginregistry.Register(
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pluginName,
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fakeplugin.NewFakeFilterPluginFncFromFake(fakeFilterPlugin),
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&fakeplugin.FakeFilterPlugin{},
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&fakeplugin.FakeFilterPluginArgs{},
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fakeplugin.ValidateFakePluginArgs,
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fakeplugin.SetDefaults_FakePluginArgs,
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pluginregistry.PluginRegistry,
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)
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fakePluginName := fmt.Sprintf("FakePlugin_%v", i)
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fakePlugin := fakeplugin.FakePlugin{}
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idx := i
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fakePlugin.AddReactor(string(frameworktypes.DescheduleExtensionPoint), func(action fakeplugin.Action) (handled, filter bool, err error) {
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descheduleInvocationOrder = append(descheduleInvocationOrder, fakePluginName)
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if idx == 0 {
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if dAction, ok := action.(fakeplugin.DescheduleAction); ok {
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// Invoke filters
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dAction.Handle().Evictor().Filter(p1)
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// Invoke pre-eviction filters
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dAction.Handle().Evictor().PreEvictionFilter(p1)
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return true, true, nil
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}
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return false, false, nil
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}
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return true, false, nil
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})
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fakePlugin.AddReactor(string(frameworktypes.BalanceExtensionPoint), func(action fakeplugin.Action) (handled, filter bool, err error) {
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balanceInvocationOrder = append(balanceInvocationOrder, fakePluginName)
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return true, false, nil
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})
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pluginregistry.Register(
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fakePluginName,
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fakeplugin.NewPluginFncFromFake(&fakePlugin),
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&fakeplugin.FakePlugin{},
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&fakeplugin.FakePluginArgs{},
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fakeplugin.ValidateFakePluginArgs,
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fakeplugin.SetDefaults_FakePluginArgs,
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pluginregistry.PluginRegistry,
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)
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}
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pluginregistry.Register(
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defaultevictor.PluginName,
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defaultevictor.New,
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&defaultevictor.DefaultEvictor{},
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&defaultevictor.DefaultEvictorArgs{},
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defaultevictor.ValidateDefaultEvictorArgs,
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defaultevictor.SetDefaults_DefaultEvictorArgs,
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pluginregistry.PluginRegistry,
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)
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client := fakeclientset.NewSimpleClientset(n1, n2, p1)
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var evictedPods []string
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client.PrependReactor("create", "pods", podEvictionReactionFuc(&evictedPods))
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sharedInformerFactory := informers.NewSharedInformerFactory(client, 0)
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podInformer := sharedInformerFactory.Core().V1().Pods().Informer()
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getPodsAssignedToNode, err := podutil.BuildGetPodsAssignedToNodeFunc(podInformer)
|
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if err != nil {
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t.Fatalf("build get pods assigned to node function error: %v", err)
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}
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sharedInformerFactory.Start(ctx.Done())
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sharedInformerFactory.WaitForCacheSync(ctx.Done())
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eventClient := fakeclientset.NewSimpleClientset(n1, n2, p1)
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eventBroadcaster, eventRecorder := utils.GetRecorderAndBroadcaster(ctx, eventClient)
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defer eventBroadcaster.Shutdown()
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podEvictor := evictions.NewPodEvictor(client, "policy/v1", false, nil, nil, nodes, true, eventRecorder)
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prfl, err := NewProfile(
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api.DeschedulerProfile{
|
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Name: "strategy-test-profile",
|
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PluginConfigs: []api.PluginConfig{
|
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{
|
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Name: defaultevictor.PluginName,
|
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Args: &defaultevictor.DefaultEvictorArgs{
|
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PriorityThreshold: &api.PriorityThreshold{
|
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Value: nil,
|
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},
|
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},
|
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},
|
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{
|
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Name: "FakePlugin_0",
|
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Args: &fakeplugin.FakePluginArgs{},
|
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},
|
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{
|
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Name: "FakePlugin_1",
|
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Args: &fakeplugin.FakePluginArgs{},
|
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},
|
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{
|
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Name: "FakePlugin_2",
|
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Args: &fakeplugin.FakePluginArgs{},
|
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},
|
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{
|
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Name: "Filter_0",
|
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Args: &fakeplugin.FakeFilterPluginArgs{},
|
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},
|
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{
|
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Name: "Filter_1",
|
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Args: &fakeplugin.FakeFilterPluginArgs{},
|
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},
|
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{
|
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Name: "Filter_2",
|
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Args: &fakeplugin.FakeFilterPluginArgs{},
|
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},
|
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},
|
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Plugins: api.Plugins{
|
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Deschedule: api.PluginSet{
|
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Enabled: []string{"FakePlugin_2", "FakePlugin_0", "FakePlugin_1"},
|
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},
|
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Balance: api.PluginSet{
|
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Enabled: []string{"FakePlugin_1", "FakePlugin_0", "FakePlugin_2"},
|
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},
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Filter: api.PluginSet{
|
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Enabled: []string{"Filter_2", "Filter_1", "Filter_0"},
|
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},
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PreEvictionFilter: api.PluginSet{
|
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Enabled: []string{"Filter_2", "Filter_1", "Filter_0"},
|
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},
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Evict: api.PluginSet{
|
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Enabled: []string{defaultevictor.PluginName},
|
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},
|
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},
|
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},
|
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pluginregistry.PluginRegistry,
|
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WithClientSet(client),
|
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WithSharedInformerFactory(sharedInformerFactory),
|
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WithPodEvictor(podEvictor),
|
||||
WithGetPodsAssignedToNodeFnc(getPodsAssignedToNode),
|
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)
|
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if err != nil {
|
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t.Fatalf("unable to create profile: %v", err)
|
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}
|
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|
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prfl.RunDeschedulePlugins(ctx, nodes)
|
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|
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diff := cmp.Diff([]string{"Filter_2_filter", "Filter_1_filter", "Filter_0_filter"}, filterInvocationOrder)
|
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if diff != "" {
|
||||
t.Errorf("check for filter invocation order failed. Results are not deep equal. mismatch (-want +got):\n%s", diff)
|
||||
}
|
||||
|
||||
diff = cmp.Diff([]string{"Filter_2_preEvictionFilter", "Filter_1_preEvictionFilter", "Filter_0_preEvictionFilter"}, preEvictionFilterInvocationOrder)
|
||||
if diff != "" {
|
||||
t.Errorf("check for filter invocation order failed. Results are not deep equal. mismatch (-want +got):\n%s", diff)
|
||||
}
|
||||
|
||||
diff = cmp.Diff([]string{"FakePlugin_2", "FakePlugin_0", "FakePlugin_1"}, descheduleInvocationOrder)
|
||||
if diff != "" {
|
||||
t.Errorf("check for deschedule invocation order failed. Results are not deep equal. mismatch (-want +got):\n%s", diff)
|
||||
}
|
||||
|
||||
prfl.RunBalancePlugins(ctx, nodes)
|
||||
|
||||
diff = cmp.Diff([]string{"FakePlugin_1", "FakePlugin_0", "FakePlugin_2"}, balanceInvocationOrder)
|
||||
if diff != "" {
|
||||
t.Errorf("check for balance invocation order failed. Results are not deep equal. mismatch (-want +got):\n%s", diff)
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user