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Merge pull request #84845 from draveness/feature/selector-spread-as-score-plugin

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feat: convert selector spread priority to score plugin
This commit is contained in:
Kubernetes Prow Robot 2019-11-06 05:02:00 -08:00 committed by GitHub
commit a89265b441
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7 changed files with 830 additions and 14 deletions
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25
pkg/scheduler/apis/config/testing/compatibility_test.go
View File

@ -149,7 +149,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"TestServiceAntiAffinity",
),
wantPlugins: map[string][]config.Plugin{
@ -167,6 +166,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "NodeResourcesBalancedAllocation", Weight: 2},
{Name: "NodeResourcesLeastAllocated", Weight: 2},
{Name: "NodeLabel", Weight: 4},
{Name: "DefaultPodTopologySpread", Weight: 2},
},
},
},
@ -205,7 +205,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"TestServiceAntiAffinity",
),
wantPlugins: map[string][]config.Plugin{
@ -229,6 +228,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "NodeResourcesLeastAllocated", Weight: 2},
{Name: "NodeAffinity", Weight: 2},
{Name: "NodeLabel", Weight: 4},
{Name: "DefaultPodTopologySpread", Weight: 2},
},
},
},
@ -270,7 +270,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"InterPodAffinityPriority",
),
wantPlugins: map[string][]config.Plugin{
@ -294,6 +293,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "ImageLocality", Weight: 2},
{Name: "NodeResourcesLeastAllocated", Weight: 2},
{Name: "NodeAffinity", Weight: 2},
{Name: "DefaultPodTopologySpread", Weight: 2},
{Name: "TaintToleration", Weight: 2},
},
},
@ -338,7 +338,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"InterPodAffinityPriority",
),
wantPlugins: map[string][]config.Plugin{
@ -364,6 +363,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "NodeResourcesMostAllocated", Weight: 2},
{Name: "NodeAffinity", Weight: 2},
{Name: "NodePreferAvoidPods", Weight: 2},
{Name: "DefaultPodTopologySpread", Weight: 2},
{Name: "TaintToleration", Weight: 2},
},
},
@ -417,7 +417,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"InterPodAffinityPriority",
),
wantPlugins: map[string][]config.Plugin{
@ -443,6 +442,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "NodeResourcesMostAllocated", Weight: 2},
{Name: "NodeAffinity", Weight: 2},
{Name: "NodePreferAvoidPods", Weight: 2},
{Name: "DefaultPodTopologySpread", Weight: 2},
{Name: "TaintToleration", Weight: 2},
},
},
@ -507,7 +507,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"InterPodAffinityPriority",
),
wantPlugins: map[string][]config.Plugin{
@ -533,6 +532,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "NodeResourcesMostAllocated", Weight: 2},
{Name: "NodeAffinity", Weight: 2},
{Name: "NodePreferAvoidPods", Weight: 2},
{Name: "DefaultPodTopologySpread", Weight: 2},
{Name: "TaintToleration", Weight: 2},
},
},
@ -598,7 +598,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"InterPodAffinityPriority",
),
wantPlugins: map[string][]config.Plugin{
@ -625,6 +624,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "NodeResourcesMostAllocated", Weight: 2},
{Name: "NodeAffinity", Weight: 2},
{Name: "NodePreferAvoidPods", Weight: 2},
{Name: "DefaultPodTopologySpread", Weight: 2},
{Name: "TaintToleration", Weight: 2},
},
},
@ -693,7 +693,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"InterPodAffinityPriority",
),
wantPlugins: map[string][]config.Plugin{
@ -720,6 +719,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "NodeResourcesMostAllocated", Weight: 2},
{Name: "NodeAffinity", Weight: 2},
{Name: "NodePreferAvoidPods", Weight: 2},
{Name: "DefaultPodTopologySpread", Weight: 2},
{Name: "TaintToleration", Weight: 2},
},
},
@ -800,7 +800,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"InterPodAffinityPriority",
),
wantPlugins: map[string][]config.Plugin{
@ -828,6 +827,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "NodeAffinity", Weight: 2},
{Name: "NodePreferAvoidPods", Weight: 2},
{Name: "RequestedToCapacityRatio", Weight: 2},
{Name: "DefaultPodTopologySpread", Weight: 2},
{Name: "TaintToleration", Weight: 2},
},
},
@ -909,7 +909,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"InterPodAffinityPriority",
),
wantPlugins: map[string][]config.Plugin{
@ -938,6 +937,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "NodeAffinity", Weight: 2},
{Name: "NodePreferAvoidPods", Weight: 2},
{Name: "RequestedToCapacityRatio", Weight: 2},
{Name: "DefaultPodTopologySpread", Weight: 2},
{Name: "TaintToleration", Weight: 2},
},
},
@ -1018,7 +1018,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"InterPodAffinityPriority",
),
wantPlugins: map[string][]config.Plugin{
@ -1048,6 +1047,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "NodeAffinity", Weight: 2},
{Name: "NodePreferAvoidPods", Weight: 2},
{Name: "RequestedToCapacityRatio", Weight: 2},
{Name: "DefaultPodTopologySpread", Weight: 2},
{Name: "TaintToleration", Weight: 2},
},
},
@ -1132,7 +1132,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
),
wantPrioritizers: sets.NewString(
"EqualPriority",
"SelectorSpreadPriority",
"InterPodAffinityPriority",
),
wantPlugins: map[string][]config.Plugin{
@ -1162,6 +1161,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
{Name: "NodeAffinity", Weight: 2},
{Name: "NodePreferAvoidPods", Weight: 2},
{Name: "RequestedToCapacityRatio", Weight: 2},
{Name: "DefaultPodTopologySpread", Weight: 2},
{Name: "TaintToleration", Weight: 2},
},
},
@ -1255,6 +1255,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
"PodTopologySpread": "EvenPodsSpread",
}
scoreToPriorityMap := map[string]string{
"DefaultPodTopologySpread": "SelectorSpreadPriority",
"ImageLocality": "ImageLocalityPriority",
"NodeAffinity": "NodeAffinityPriority",
"NodePreferAvoidPods": "NodePreferAvoidPodsPriority",

2
pkg/scheduler/framework/plugins/BUILD
View File

@ -9,6 +9,7 @@ go_library(
"//pkg/scheduler/algorithm/predicates:go_default_library",
"//pkg/scheduler/algorithm/priorities:go_default_library",
"//pkg/scheduler/apis/config:go_default_library",
"//pkg/scheduler/framework/plugins/defaultpodtopologyspread:go_default_library",
"//pkg/scheduler/framework/plugins/imagelocality:go_default_library",
"//pkg/scheduler/framework/plugins/interpodaffinity:go_default_library",
"//pkg/scheduler/framework/plugins/nodeaffinity:go_default_library",
@ -43,6 +44,7 @@ filegroup(
name = "all-srcs",
srcs = [
":package-srcs",
"//pkg/scheduler/framework/plugins/defaultpodtopologyspread:all-srcs",
"//pkg/scheduler/framework/plugins/examples:all-srcs",
"//pkg/scheduler/framework/plugins/imagelocality:all-srcs",
"//pkg/scheduler/framework/plugins/interpodaffinity:all-srcs",

7
pkg/scheduler/framework/plugins/default_registry.go
View File

@ -25,6 +25,7 @@ import (
"k8s.io/kubernetes/pkg/scheduler/algorithm/predicates"
"k8s.io/kubernetes/pkg/scheduler/algorithm/priorities"
"k8s.io/kubernetes/pkg/scheduler/apis/config"
"k8s.io/kubernetes/pkg/scheduler/framework/plugins/defaultpodtopologyspread"
"k8s.io/kubernetes/pkg/scheduler/framework/plugins/imagelocality"
"k8s.io/kubernetes/pkg/scheduler/framework/plugins/interpodaffinity"
"k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodeaffinity"
@ -55,6 +56,7 @@ type RegistryArgs struct {
// plugins can register additional plugins through the WithFrameworkOutOfTreeRegistry option.
func NewDefaultRegistry(args *RegistryArgs) framework.Registry {
return framework.Registry{
defaultpodtopologyspread.Name: defaultpodtopologyspread.New,
imagelocality.Name: imagelocality.New,
tainttoleration.Name: tainttoleration.New,
nodename.Name: nodename.New,
@ -209,6 +211,11 @@ func NewDefaultConfigProducerRegistry() *ConfigProducerRegistry {
})
// Register Priorities.
registry.RegisterPriority(priorities.SelectorSpreadPriority,
func(args ConfigProducerArgs) (plugins config.Plugins, pluginConfig []config.PluginConfig) {
plugins.Score = appendToPluginSet(plugins.Score, defaultpodtopologyspread.Name, &args.Weight)
return
})
registry.RegisterPriority(priorities.TaintTolerationPriority,
func(args ConfigProducerArgs) (plugins config.Plugins, pluginConfig []config.PluginConfig) {
plugins.Score = appendToPluginSet(plugins.Score, tainttoleration.Name, &args.Weight)

45
pkg/scheduler/framework/plugins/defaultpodtopologyspread/BUILD Normal file
View File

@ -0,0 +1,45 @@
load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
go_library(
name = "go_default_library",
srcs = ["default_pod_topology_spread.go"],
importpath = "k8s.io/kubernetes/pkg/scheduler/framework/plugins/defaultpodtopologyspread",
visibility = ["//visibility:public"],
deps = [
"//pkg/scheduler/algorithm/priorities:go_default_library",
"//pkg/scheduler/framework/plugins/migration:go_default_library",
"//pkg/scheduler/framework/v1alpha1:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",
],
)
go_test(
name = "go_default_test",
srcs = ["default_pod_topology_spread_test.go"],
embed = [":go_default_library"],
deps = [
"//pkg/scheduler/algorithm/priorities:go_default_library",
"//pkg/scheduler/framework/plugins/migration:go_default_library",
"//pkg/scheduler/framework/v1alpha1:go_default_library",
"//pkg/scheduler/listers/fake:go_default_library",
"//pkg/scheduler/nodeinfo/snapshot:go_default_library",
"//staging/src/k8s.io/api/apps/v1:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
visibility = ["//visibility:public"],
)

88
pkg/scheduler/framework/plugins/defaultpodtopologyspread/default_pod_topology_spread.go Normal file
View File

@ -0,0 +1,88 @@
/*
Copyright 2019 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package defaultpodtopologyspread
import (
"context"
"fmt"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/kubernetes/pkg/scheduler/algorithm/priorities"
"k8s.io/kubernetes/pkg/scheduler/framework/plugins/migration"
framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
)
// DefaultPodTopologySpread is a plugin that calculates selector spread priority.
type DefaultPodTopologySpread struct {
handle framework.FrameworkHandle
calculateSpreadPriorityMap priorities.PriorityMapFunction
calculateSpreadPriorityReduce priorities.PriorityReduceFunction
}
var _ framework.ScorePlugin = &DefaultPodTopologySpread{}
// Name is the name of the plugin used in the plugin registry and configurations.
const Name = "DefaultPodTopologySpread"
// Name returns name of the plugin. It is used in logs, etc.
func (pl *DefaultPodTopologySpread) Name() string {
return Name
}
// Score invoked at the Score extension point.
// The "score" returned in this function is the matching number of pods on the `nodeName`,
// it is normalized later.
func (pl *DefaultPodTopologySpread) Score(ctx context.Context, state *framework.CycleState, pod *v1.Pod, nodeName string) (int64, *framework.Status) {
nodeInfo, err := pl.handle.SnapshotSharedLister().NodeInfos().Get(nodeName)
if err != nil {
return 0, framework.NewStatus(framework.Error, fmt.Sprintf("getting node %q from Snapshot: %v", nodeName, err))
}
meta := migration.PriorityMetadata(state)
s, err := pl.calculateSpreadPriorityMap(pod, meta, nodeInfo)
return s.Score, migration.ErrorToFrameworkStatus(err)
}
// NormalizeScore invoked after scoring all nodes.
func (pl *DefaultPodTopologySpread) NormalizeScore(ctx context.Context, state *framework.CycleState, pod *v1.Pod, scores framework.NodeScoreList) *framework.Status {
meta := migration.PriorityMetadata(state)
err := pl.calculateSpreadPriorityReduce(pod, meta, pl.handle.SnapshotSharedLister(), scores)
return migration.ErrorToFrameworkStatus(err)
}
// ScoreExtensions of the Score plugin.
func (pl *DefaultPodTopologySpread) ScoreExtensions() framework.ScoreExtensions {
return pl
}
// New initializes a new plugin and returns it.
func New(_ *runtime.Unknown, handle framework.FrameworkHandle) (framework.Plugin, error) {
informerFactory := handle.SharedInformerFactory()
calculateSpreadPriorityMap, calculateSpreadPriorityReduce := priorities.NewSelectorSpreadPriority(
informerFactory.Core().V1().Services().Lister(),
informerFactory.Core().V1().ReplicationControllers().Lister(),
informerFactory.Apps().V1().ReplicaSets().Lister(),
informerFactory.Apps().V1().StatefulSets().Lister(),
)
return &DefaultPodTopologySpread{
handle: handle,
calculateSpreadPriorityMap: calculateSpreadPriorityMap,
calculateSpreadPriorityReduce: calculateSpreadPriorityReduce,
}, nil
}

673
pkg/scheduler/framework/plugins/defaultpodtopologyspread/default_pod_topology_spread_test.go Normal file
View File

@ -0,0 +1,673 @@
/*
Copyright 2019 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package defaultpodtopologyspread
import (
"context"
"reflect"
"sort"
"testing"
apps "k8s.io/api/apps/v1"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/kubernetes/pkg/scheduler/algorithm/priorities"
"k8s.io/kubernetes/pkg/scheduler/framework/plugins/migration"
framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
fakelisters "k8s.io/kubernetes/pkg/scheduler/listers/fake"
nodeinfosnapshot "k8s.io/kubernetes/pkg/scheduler/nodeinfo/snapshot"
)
func controllerRef(kind, name, uid string) []metav1.OwnerReference {
// TODO: When ControllerRef will be implemented uncomment code below.
return nil
//trueVar := true
//return []metav1.OwnerReference{
// {Kind: kind, Name: name, UID: types.UID(uid), Controller: &trueVar},
//}
}
func TestDefaultPodTopologySpreadScore(t *testing.T) {
labels1 := map[string]string{
"foo": "bar",
"baz": "blah",
}
labels2 := map[string]string{
"bar": "foo",
"baz": "blah",
}
zone1Spec := v1.PodSpec{
NodeName: "machine1",
}
zone2Spec := v1.PodSpec{
NodeName: "machine2",
}
tests := []struct {
pod *v1.Pod
pods []*v1.Pod
nodes []string
rcs []*v1.ReplicationController
rss []*apps.ReplicaSet
services []*v1.Service
sss []*apps.StatefulSet
expectedList framework.NodeScoreList
name string
}{
{
pod: new(v1.Pod),
nodes: []string{"machine1", "machine2"},
expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: framework.MaxNodeScore}},
name: "nothing scheduled",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
pods: []*v1.Pod{{Spec: zone1Spec}},
nodes: []string{"machine1", "machine2"},
expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: framework.MaxNodeScore}},
name: "no services",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
pods: []*v1.Pod{{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}}},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"key": "value"}}}},
expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: framework.MaxNodeScore}},
name: "different services",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: 0}},
name: "two pods, one service pod",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: metav1.NamespaceDefault}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: 0}},
name: "five pods, one service pod in no namespace",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: metav1.NamespaceDefault}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: metav1.NamespaceDefault}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}, ObjectMeta: metav1.ObjectMeta{Namespace: metav1.NamespaceDefault}}},
expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: 0}},
name: "four pods, one service pod in default namespace",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: metav1.NamespaceDefault}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: "ns2"}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}, ObjectMeta: metav1.ObjectMeta{Namespace: "ns1"}}},
expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: 0}},
name: "five pods, one service pod in specific namespace",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
name: "three pods, two service pods on different machines",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
expectedList: []framework.NodeScore{{Name: "machine1", Score: 50}, {Name: "machine2", Score: 0}},
name: "four pods, three service pods",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 50}},
name: "service with partial pod label matches",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
rcs: []*v1.ReplicationController{{Spec: v1.ReplicationControllerSpec{Selector: map[string]string{"foo": "bar"}}}},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
// "baz=blah" matches both labels1 and labels2, and "foo=bar" matches only labels 1. This means that we assume that we want to
// do spreading pod2 and pod3 and not pod1.
expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
name: "service with partial pod label matches with service and replication controller",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
rss: []*apps.ReplicaSet{{Spec: apps.ReplicaSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
// We use ReplicaSet, instead of ReplicationController. The result should be exactly as above.
expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
name: "service with partial pod label matches with service and replica set",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
sss: []*apps.StatefulSet{{Spec: apps.StatefulSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
name: "service with partial pod label matches with service and stateful set",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: map[string]string{"foo": "bar", "bar": "foo"}, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
rcs: []*v1.ReplicationController{{Spec: v1.ReplicationControllerSpec{Selector: map[string]string{"foo": "bar"}}}},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"bar": "foo"}}}},
// Taken together Service and Replication Controller should match no pods.
expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: framework.MaxNodeScore}},
name: "disjoined service and replication controller matches no pods",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: map[string]string{"foo": "bar", "bar": "foo"}, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"bar": "foo"}}}},
rss: []*apps.ReplicaSet{{Spec: apps.ReplicaSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
// We use ReplicaSet, instead of ReplicationController. The result should be exactly as above.
expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: framework.MaxNodeScore}},
name: "disjoined service and replica set matches no pods",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: map[string]string{"foo": "bar", "bar": "foo"}, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"bar": "foo"}}}},
sss: []*apps.StatefulSet{{Spec: apps.StatefulSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: framework.MaxNodeScore}},
name: "disjoined service and stateful set matches no pods",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
rcs: []*v1.ReplicationController{{Spec: v1.ReplicationControllerSpec{Selector: map[string]string{"foo": "bar"}}}},
// Both Nodes have one pod from the given RC, hence both get 0 score.
expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
name: "Replication controller with partial pod label matches",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
rss: []*apps.ReplicaSet{{Spec: apps.ReplicaSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
// We use ReplicaSet, instead of ReplicationController. The result should be exactly as above.
expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
name: "Replica set with partial pod label matches",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
sss: []*apps.StatefulSet{{Spec: apps.StatefulSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
// We use StatefulSet, instead of ReplicationController. The result should be exactly as above.
expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
name: "StatefulSet with partial pod label matches",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
rcs: []*v1.ReplicationController{{Spec: v1.ReplicationControllerSpec{Selector: map[string]string{"baz": "blah"}}}},
expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 50}},
name: "Another replication controller with partial pod label matches",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
rss: []*apps.ReplicaSet{{Spec: apps.ReplicaSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"baz": "blah"}}}}},
// We use ReplicaSet, instead of ReplicationController. The result should be exactly as above.
expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 50}},
name: "Another replication set with partial pod label matches",
},
{
pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
pods: []*v1.Pod{
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
},
nodes: []string{"machine1", "machine2"},
sss: []*apps.StatefulSet{{Spec: apps.StatefulSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"baz": "blah"}}}}},
// We use StatefulSet, instead of ReplicationController. The result should be exactly as above.
expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 50}},
name: "Another stateful set with partial pod label matches",
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
nodes := makeNodeList(test.nodes)
snapshot := nodeinfosnapshot.NewSnapshot(test.pods, nodes)
fh, _ := framework.NewFramework(nil, nil, nil, framework.WithNodeInfoSnapshot(snapshot))
mapFunction, reduceFunction := priorities.NewSelectorSpreadPriority(
fakelisters.ServiceLister(test.services),
fakelisters.ControllerLister(test.rcs),
fakelisters.ReplicaSetLister(test.rss),
fakelisters.StatefulSetLister(test.sss),
)
metaDataProducer := priorities.NewPriorityMetadataFactory(
fakelisters.ServiceLister(test.services),
fakelisters.ControllerLister(test.rcs),
fakelisters.ReplicaSetLister(test.rss),
fakelisters.StatefulSetLister(test.sss))
metaData := metaDataProducer(test.pod, nodes, snapshot)
state := framework.NewCycleState()
state.Write(migration.PrioritiesStateKey, &migration.PrioritiesStateData{Reference: metaData})
plugin := &DefaultPodTopologySpread{
handle: fh,
calculateSpreadPriorityMap: mapFunction,
calculateSpreadPriorityReduce: reduceFunction,
}
var gotList framework.NodeScoreList
for _, nodeName := range test.nodes {
score, status := plugin.Score(context.Background(), state, test.pod, nodeName)
if !status.IsSuccess() {
t.Errorf("unexpected error: %v", status)
}
gotList = append(gotList, framework.NodeScore{Name: nodeName, Score: score})
}
status := plugin.ScoreExtensions().NormalizeScore(context.Background(), state, test.pod, gotList)
if !status.IsSuccess() {
t.Errorf("unexpected error: %v", status)
}
if !reflect.DeepEqual(test.expectedList, gotList) {
t.Errorf("expected:\n\t%+v,\ngot:\n\t%+v", test.expectedList, gotList)
}
})
}
}
func buildPod(nodeName string, labels map[string]string, ownerRefs []metav1.OwnerReference) *v1.Pod {
return &v1.Pod{
ObjectMeta: metav1.ObjectMeta{Labels: labels, OwnerReferences: ownerRefs},
Spec: v1.PodSpec{NodeName: nodeName},
}
}
func TestZoneSelectorSpreadPriority(t *testing.T) {
labels1 := map[string]string{
"label1": "l1",
"baz": "blah",
}
labels2 := map[string]string{
"label2": "l2",
"baz": "blah",
}
const nodeMachine1Zone1 = "machine1.zone1"
const nodeMachine1Zone2 = "machine1.zone2"
const nodeMachine2Zone2 = "machine2.zone2"
const nodeMachine1Zone3 = "machine1.zone3"
const nodeMachine2Zone3 = "machine2.zone3"
const nodeMachine3Zone3 = "machine3.zone3"
buildNodeLabels := func(failureDomain string) map[string]string {
labels := map[string]string{
v1.LabelZoneFailureDomain: failureDomain,
}
return labels
}
labeledNodes := map[string]map[string]string{
nodeMachine1Zone1: buildNodeLabels("zone1"),
nodeMachine1Zone2: buildNodeLabels("zone2"),
nodeMachine2Zone2: buildNodeLabels("zone2"),
nodeMachine1Zone3: buildNodeLabels("zone3"),
nodeMachine2Zone3: buildNodeLabels("zone3"),
nodeMachine3Zone3: buildNodeLabels("zone3"),
}
tests := []struct {
pod *v1.Pod
pods []*v1.Pod
rcs []*v1.ReplicationController
rss []*apps.ReplicaSet
services []*v1.Service
sss []*apps.StatefulSet
expectedList framework.NodeScoreList
name string
}{
{
pod: new(v1.Pod),
expectedList: []framework.NodeScore{
{Name: nodeMachine1Zone1, Score: framework.MaxNodeScore},
{Name: nodeMachine1Zone2, Score: framework.MaxNodeScore},
{Name: nodeMachine2Zone2, Score: framework.MaxNodeScore},
{Name: nodeMachine1Zone3, Score: framework.MaxNodeScore},
{Name: nodeMachine2Zone3, Score: framework.MaxNodeScore},
{Name: nodeMachine3Zone3, Score: framework.MaxNodeScore},
},
name: "nothing scheduled",
},
{
pod: buildPod("", labels1, nil),
pods: []*v1.Pod{buildPod(nodeMachine1Zone1, nil, nil)},
expectedList: []framework.NodeScore{
{Name: nodeMachine1Zone1, Score: framework.MaxNodeScore},
{Name: nodeMachine1Zone2, Score: framework.MaxNodeScore},
{Name: nodeMachine2Zone2, Score: framework.MaxNodeScore},
{Name: nodeMachine1Zone3, Score: framework.MaxNodeScore},
{Name: nodeMachine2Zone3, Score: framework.MaxNodeScore},
{Name: nodeMachine3Zone3, Score: framework.MaxNodeScore},
},
name: "no services",
},
{
pod: buildPod("", labels1, nil),
pods: []*v1.Pod{buildPod(nodeMachine1Zone1, labels2, nil)},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"key": "value"}}}},
expectedList: []framework.NodeScore{
{Name: nodeMachine1Zone1, Score: framework.MaxNodeScore},
{Name: nodeMachine1Zone2, Score: framework.MaxNodeScore},
{Name: nodeMachine2Zone2, Score: framework.MaxNodeScore},
{Name: nodeMachine1Zone3, Score: framework.MaxNodeScore},
{Name: nodeMachine2Zone3, Score: framework.MaxNodeScore},
{Name: nodeMachine3Zone3, Score: framework.MaxNodeScore},
},
name: "different services",
},
{
pod: buildPod("", labels1, nil),
pods: []*v1.Pod{
buildPod(nodeMachine1Zone1, labels2, nil),
buildPod(nodeMachine1Zone2, labels2, nil),
},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
expectedList: []framework.NodeScore{
{Name: nodeMachine1Zone1, Score: framework.MaxNodeScore},
{Name: nodeMachine1Zone2, Score: framework.MaxNodeScore},
{Name: nodeMachine2Zone2, Score: framework.MaxNodeScore},
{Name: nodeMachine1Zone3, Score: framework.MaxNodeScore},
{Name: nodeMachine2Zone3, Score: framework.MaxNodeScore},
{Name: nodeMachine3Zone3, Score: framework.MaxNodeScore},
},
name: "two pods, 0 matching",
},
{
pod: buildPod("", labels1, nil),
pods: []*v1.Pod{
buildPod(nodeMachine1Zone1, labels2, nil),
buildPod(nodeMachine1Zone2, labels1, nil),
},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
expectedList: []framework.NodeScore{
{Name: nodeMachine1Zone1, Score: framework.MaxNodeScore},
{Name: nodeMachine1Zone2, Score: 0}, // Already have pod on machine
{Name: nodeMachine2Zone2, Score: 33}, // Already have pod in zone
{Name: nodeMachine1Zone3, Score: framework.MaxNodeScore},
{Name: nodeMachine2Zone3, Score: framework.MaxNodeScore},
{Name: nodeMachine3Zone3, Score: framework.MaxNodeScore},
},
name: "two pods, 1 matching (in z2)",
},
{
pod: buildPod("", labels1, nil),
pods: []*v1.Pod{
buildPod(nodeMachine1Zone1, labels2, nil),
buildPod(nodeMachine1Zone2, labels1, nil),
buildPod(nodeMachine2Zone2, labels1, nil),
buildPod(nodeMachine1Zone3, labels2, nil),
buildPod(nodeMachine2Zone3, labels1, nil),
},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
expectedList: []framework.NodeScore{
{Name: nodeMachine1Zone1, Score: framework.MaxNodeScore},
{Name: nodeMachine1Zone2, Score: 0}, // Pod on node
{Name: nodeMachine2Zone2, Score: 0}, // Pod on node
{Name: nodeMachine1Zone3, Score: 66}, // Pod in zone
{Name: nodeMachine2Zone3, Score: 33}, // Pod on node
{Name: nodeMachine3Zone3, Score: 66}, // Pod in zone
},
name: "five pods, 3 matching (z2=2, z3=1)",
},
{
pod: buildPod("", labels1, nil),
pods: []*v1.Pod{
buildPod(nodeMachine1Zone1, labels1, nil),
buildPod(nodeMachine1Zone2, labels1, nil),
buildPod(nodeMachine2Zone2, labels2, nil),
buildPod(nodeMachine1Zone3, labels1, nil),
},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
expectedList: []framework.NodeScore{
{Name: nodeMachine1Zone1, Score: 0}, // Pod on node
{Name: nodeMachine1Zone2, Score: 0}, // Pod on node
{Name: nodeMachine2Zone2, Score: 33}, // Pod in zone
{Name: nodeMachine1Zone3, Score: 0}, // Pod on node
{Name: nodeMachine2Zone3, Score: 33}, // Pod in zone
{Name: nodeMachine3Zone3, Score: 33}, // Pod in zone
},
name: "four pods, 3 matching (z1=1, z2=1, z3=1)",
},
{
pod: buildPod("", labels1, nil),
pods: []*v1.Pod{
buildPod(nodeMachine1Zone1, labels1, nil),
buildPod(nodeMachine1Zone2, labels1, nil),
buildPod(nodeMachine1Zone3, labels1, nil),
buildPod(nodeMachine2Zone2, labels2, nil),
},
services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
expectedList: []framework.NodeScore{
{Name: nodeMachine1Zone1, Score: 0}, // Pod on node
{Name: nodeMachine1Zone2, Score: 0}, // Pod on node
{Name: nodeMachine2Zone2, Score: 33}, // Pod in zone
{Name: nodeMachine1Zone3, Score: 0}, // Pod on node
{Name: nodeMachine2Zone3, Score: 33}, // Pod in zone
{Name: nodeMachine3Zone3, Score: 33}, // Pod in zone
},
name: "four pods, 3 matching (z1=1, z2=1, z3=1)",
},
{
pod: buildPod("", labels1, controllerRef("ReplicationController", "name", "abc123")),
pods: []*v1.Pod{
buildPod(nodeMachine1Zone3, labels1, controllerRef("ReplicationController", "name", "abc123")),
buildPod(nodeMachine1Zone2, labels1, controllerRef("ReplicationController", "name", "abc123")),
buildPod(nodeMachine1Zone3, labels1, controllerRef("ReplicationController", "name", "abc123")),
},
rcs: []*v1.ReplicationController{{Spec: v1.ReplicationControllerSpec{Selector: labels1}}},
expectedList: []framework.NodeScore{
// Note that because we put two pods on the same node (nodeMachine1Zone3),
// the values here are questionable for zone2, in particular for nodeMachine1Zone2.
// However they kind of make sense; zone1 is still most-highly favored.
// zone3 is in general least favored, and m1.z3 particularly low priority.
// We would probably prefer to see a bigger gap between putting a second
// pod on m1.z2 and putting a pod on m2.z2, but the ordering is correct.
// This is also consistent with what we have already.
{Name: nodeMachine1Zone1, Score: framework.MaxNodeScore}, // No pods in zone
{Name: nodeMachine1Zone2, Score: 50}, // Pod on node
{Name: nodeMachine2Zone2, Score: 66}, // Pod in zone
{Name: nodeMachine1Zone3, Score: 0}, // Two pods on node
{Name: nodeMachine2Zone3, Score: 33}, // Pod in zone
{Name: nodeMachine3Zone3, Score: 33}, // Pod in zone
},
name: "Replication controller spreading (z1=0, z2=1, z3=2)",
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
nodes := makeLabeledNodeList(labeledNodes)
snapshot := nodeinfosnapshot.NewSnapshot(test.pods, nodes)
fh, _ := framework.NewFramework(nil, nil, nil, framework.WithNodeInfoSnapshot(snapshot))
mapFunction, reduceFunction := priorities.NewSelectorSpreadPriority(
fakelisters.ServiceLister(test.services),
fakelisters.ControllerLister(test.rcs),
fakelisters.ReplicaSetLister(test.rss),
fakelisters.StatefulSetLister(test.sss),
)
metaDataProducer := priorities.NewPriorityMetadataFactory(
fakelisters.ServiceLister(test.services),
fakelisters.ControllerLister(test.rcs),
fakelisters.ReplicaSetLister(test.rss),
fakelisters.StatefulSetLister(test.sss))
metaData := metaDataProducer(test.pod, nodes, snapshot)
plugin := &DefaultPodTopologySpread{
handle: fh,
calculateSpreadPriorityMap: mapFunction,
calculateSpreadPriorityReduce: reduceFunction,
}
state := framework.NewCycleState()
state.Write(migration.PrioritiesStateKey, &migration.PrioritiesStateData{Reference: metaData})
var gotList framework.NodeScoreList
for _, n := range nodes {
nodeName := n.ObjectMeta.Name
score, status := plugin.Score(context.Background(), state, test.pod, nodeName)
if !status.IsSuccess() {
t.Errorf("unexpected error: %v", status)
}
gotList = append(gotList, framework.NodeScore{Name: nodeName, Score: score})
}
status := plugin.ScoreExtensions().NormalizeScore(context.Background(), state, test.pod, gotList)
if !status.IsSuccess() {
t.Errorf("unexpected error: %v", status)
}
sortNodeScoreList(test.expectedList)
sortNodeScoreList(gotList)
if !reflect.DeepEqual(test.expectedList, gotList) {
t.Errorf("expected:\n\t%+v,\ngot:\n\t%+v", test.expectedList, gotList)
}
})
}
}
func makeLabeledNodeList(nodeMap map[string]map[string]string) []*v1.Node {
nodes := make([]*v1.Node, 0, len(nodeMap))
for nodeName, labels := range nodeMap {
nodes = append(nodes, &v1.Node{ObjectMeta: metav1.ObjectMeta{Name: nodeName, Labels: labels}})
}
return nodes
}
func makeNodeList(nodeNames []string) []*v1.Node {
nodes := make([]*v1.Node, 0, len(nodeNames))
for _, nodeName := range nodeNames {
nodes = append(nodes, &v1.Node{ObjectMeta: metav1.ObjectMeta{Name: nodeName}})
}
return nodes
}
func sortNodeScoreList(out framework.NodeScoreList) {
sort.Slice(out, func(i, j int) bool {
if out[i].Score == out[j].Score {
return out[i].Name < out[j].Name
}
return out[i].Score < out[j].Score
})
}

4
test/integration/scheduler/scheduler_test.go
View File

@ -132,7 +132,6 @@ func TestSchedulerCreationFromConfigMap(t *testing.T) {
}`,
expectedPrioritizers: sets.NewString(
"InterPodAffinityPriority",
"SelectorSpreadPriority",
),
expectedPlugins: map[string][]kubeschedulerconfig.Plugin{
"FilterPlugin": {
@ -157,6 +156,7 @@ func TestSchedulerCreationFromConfigMap(t *testing.T) {
{Name: "NodeResourcesLeastAllocated", Weight: 1},
{Name: "NodeAffinity", Weight: 1},
{Name: "NodePreferAvoidPods", Weight: 10000},
{Name: "DefaultPodTopologySpread", Weight: 1},
{Name: "TaintToleration", Weight: 1},
},
},
@ -210,7 +210,6 @@ kind: Policy
`,
expectedPrioritizers: sets.NewString(
"InterPodAffinityPriority",
"SelectorSpreadPriority",
),
expectedPlugins: map[string][]kubeschedulerconfig.Plugin{
"FilterPlugin": {
@ -235,6 +234,7 @@ kind: Policy
{Name: "NodeResourcesLeastAllocated", Weight: 1},
{Name: "NodeAffinity", Weight: 1},
{Name: "NodePreferAvoidPods", Weight: 10000},
{Name: "DefaultPodTopologySpread", Weight: 1},
{Name: "TaintToleration", Weight: 1},
},
},