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@ -0,0 +1,673 @@
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/*
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Copyright 2019 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 defaultpodtopologyspread
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import (
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"context"
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"reflect"
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"sort"
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"testing"
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apps "k8s.io/api/apps/v1"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/scheduler/algorithm/priorities"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/migration"
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framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
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fakelisters "k8s.io/kubernetes/pkg/scheduler/listers/fake"
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nodeinfosnapshot "k8s.io/kubernetes/pkg/scheduler/nodeinfo/snapshot"
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)
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func controllerRef(kind, name, uid string) []metav1.OwnerReference {
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// TODO: When ControllerRef will be implemented uncomment code below.
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return nil
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//trueVar := true
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//return []metav1.OwnerReference{
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// {Kind: kind, Name: name, UID: types.UID(uid), Controller: &trueVar},
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//}
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}
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func TestDefaultPodTopologySpreadScore(t *testing.T) {
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labels1 := map[string]string{
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"foo": "bar",
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"baz": "blah",
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}
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labels2 := map[string]string{
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"bar": "foo",
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"baz": "blah",
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}
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zone1Spec := v1.PodSpec{
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NodeName: "machine1",
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}
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zone2Spec := v1.PodSpec{
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NodeName: "machine2",
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}
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tests := []struct {
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pod *v1.Pod
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pods []*v1.Pod
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nodes []string
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rcs []*v1.ReplicationController
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rss []*apps.ReplicaSet
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services []*v1.Service
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sss []*apps.StatefulSet
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expectedList framework.NodeScoreList
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name string
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}{
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{
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pod: new(v1.Pod),
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nodes: []string{"machine1", "machine2"},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: framework.MaxNodeScore}},
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name: "nothing scheduled",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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pods: []*v1.Pod{{Spec: zone1Spec}},
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nodes: []string{"machine1", "machine2"},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: framework.MaxNodeScore}},
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name: "no services",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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pods: []*v1.Pod{{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}}},
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nodes: []string{"machine1", "machine2"},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"key": "value"}}}},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: framework.MaxNodeScore}},
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name: "different services",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: 0}},
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name: "two pods, one service pod",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: metav1.NamespaceDefault}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: 0}},
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name: "five pods, one service pod in no namespace",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: metav1.NamespaceDefault}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: metav1.NamespaceDefault}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}, ObjectMeta: metav1.ObjectMeta{Namespace: metav1.NamespaceDefault}}},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: 0}},
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name: "four pods, one service pod in default namespace",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: metav1.NamespaceDefault}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: "ns2"}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}, ObjectMeta: metav1.ObjectMeta{Namespace: "ns1"}}},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: 0}},
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name: "five pods, one service pod in specific namespace",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
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name: "three pods, two service pods on different machines",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: labels1}}},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: 50}, {Name: "machine2", Score: 0}},
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name: "four pods, three service pods",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 50}},
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name: "service with partial pod label matches",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
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},
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nodes: []string{"machine1", "machine2"},
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rcs: []*v1.ReplicationController{{Spec: v1.ReplicationControllerSpec{Selector: map[string]string{"foo": "bar"}}}},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
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// "baz=blah" matches both labels1 and labels2, and "foo=bar" matches only labels 1. This means that we assume that we want to
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// do spreading pod2 and pod3 and not pod1.
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expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
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name: "service with partial pod label matches with service and replication controller",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
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rss: []*apps.ReplicaSet{{Spec: apps.ReplicaSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
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// We use ReplicaSet, instead of ReplicationController. The result should be exactly as above.
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expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
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name: "service with partial pod label matches with service and replica set",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("StatefulSet", "name", "abc123")}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
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sss: []*apps.StatefulSet{{Spec: apps.StatefulSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
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name: "service with partial pod label matches with service and stateful set",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: map[string]string{"foo": "bar", "bar": "foo"}, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicationController", "name", "abc123")}},
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},
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nodes: []string{"machine1", "machine2"},
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rcs: []*v1.ReplicationController{{Spec: v1.ReplicationControllerSpec{Selector: map[string]string{"foo": "bar"}}}},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"bar": "foo"}}}},
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// Taken together Service and Replication Controller should match no pods.
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expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: framework.MaxNodeScore}},
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name: "disjoined service and replication controller matches no pods",
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},
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{
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pod: &v1.Pod{ObjectMeta: metav1.ObjectMeta{Labels: map[string]string{"foo": "bar", "bar": "foo"}, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
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pods: []*v1.Pod{
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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{Spec: zone1Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
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{Spec: zone2Spec, ObjectMeta: metav1.ObjectMeta{Labels: labels1, OwnerReferences: controllerRef("ReplicaSet", "name", "abc123")}},
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},
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nodes: []string{"machine1", "machine2"},
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services: []*v1.Service{{Spec: v1.ServiceSpec{Selector: map[string]string{"bar": "foo"}}}},
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rss: []*apps.ReplicaSet{{Spec: apps.ReplicaSetSpec{Selector: &metav1.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
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// We use ReplicaSet, instead of ReplicationController. The result should be exactly as above.
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expectedList: []framework.NodeScore{{Name: "machine1", Score: framework.MaxNodeScore}, {Name: "machine2", Score: framework.MaxNodeScore}},
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name: "disjoined service and replica set matches no pods",
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},
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|
|
|
|
{
|
|
|
|
|
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
|
|
|
|
|
})
|
|
|
|
|
}
|