214 lines
6.9 KiB
Go
214 lines
6.9 KiB
Go
/*
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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 noderesources
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import (
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"context"
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"reflect"
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"testing"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
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"k8s.io/kubernetes/pkg/scheduler/internal/cache"
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)
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func TestNodeResourcesMostAllocated(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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noResources := v1.PodSpec{
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Containers: []v1.Container{},
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}
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cpuOnly := v1.PodSpec{
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NodeName: "machine1",
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Containers: []v1.Container{
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{
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Resources: v1.ResourceRequirements{
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Requests: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("1000m"),
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v1.ResourceMemory: resource.MustParse("0"),
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},
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},
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},
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{
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Resources: v1.ResourceRequirements{
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Requests: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("2000m"),
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v1.ResourceMemory: resource.MustParse("0"),
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},
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},
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},
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},
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}
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cpuOnly2 := cpuOnly
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cpuOnly2.NodeName = "machine2"
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cpuAndMemory := v1.PodSpec{
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NodeName: "machine2",
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Containers: []v1.Container{
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{
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Resources: v1.ResourceRequirements{
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Requests: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("1000m"),
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v1.ResourceMemory: resource.MustParse("2000"),
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},
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},
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},
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{
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Resources: v1.ResourceRequirements{
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Requests: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("2000m"),
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v1.ResourceMemory: resource.MustParse("3000"),
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},
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},
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},
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},
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}
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bigCPUAndMemory := v1.PodSpec{
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NodeName: "machine1",
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Containers: []v1.Container{
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{
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Resources: v1.ResourceRequirements{
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Requests: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("2000m"),
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v1.ResourceMemory: resource.MustParse("4000"),
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},
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},
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},
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{
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Resources: v1.ResourceRequirements{
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Requests: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("3000m"),
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v1.ResourceMemory: resource.MustParse("5000"),
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},
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},
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},
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},
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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 []*v1.Node
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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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// Node1 scores (used resources) on 0-10 scale
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// CPU Score: (0 * 100) / 4000 = 0
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// Memory Score: (0 * 100) / 10000 = 0
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// Node1 Score: (0 + 0) / 2 = 0
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// Node2 scores (used resources) on 0-10 scale
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// CPU Score: (0 * 100) / 4000 = 0
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// Memory Score: (0 * 100) / 10000 = 0
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// Node2 Score: (0 + 0) / 2 = 0
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pod: &v1.Pod{Spec: noResources},
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nodes: []*v1.Node{makeNode("machine1", 4000, 10000), makeNode("machine2", 4000, 10000)},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: 0}, {Name: "machine2", Score: 0}},
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name: "nothing scheduled, nothing requested",
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},
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{
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// Node1 scores on 0-10 scale
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// CPU Score: (3000 * 100) / 4000 = 75
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// Memory Score: (5000 * 100) / 10000 = 50
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// Node1 Score: (75 + 50) / 2 = 6
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// Node2 scores on 0-10 scale
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// CPU Score: (3000 * 100) / 6000 = 50
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// Memory Score: (5000 * 100) / 10000 = 50
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// Node2 Score: (50 + 50) / 2 = 50
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pod: &v1.Pod{Spec: cpuAndMemory},
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nodes: []*v1.Node{makeNode("machine1", 4000, 10000), makeNode("machine2", 6000, 10000)},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: 62}, {Name: "machine2", Score: 50}},
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name: "nothing scheduled, resources requested, differently sized machines",
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},
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{
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// Node1 scores on 0-10 scale
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// CPU Score: (6000 * 100) / 10000 = 60
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// Memory Score: (0 * 100) / 20000 = 100
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// Node1 Score: (60 + 0) / 2 = 30
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// Node2 scores on 0-10 scale
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// CPU Score: (6000 * 100) / 10000 = 60
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// Memory Score: (5000 * 100) / 20000 = 25
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// Node2 Score: (60 + 25) / 2 = 42
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pod: &v1.Pod{Spec: noResources},
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nodes: []*v1.Node{makeNode("machine1", 10000, 20000), makeNode("machine2", 10000, 20000)},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: 30}, {Name: "machine2", Score: 42}},
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name: "no resources requested, pods scheduled with resources",
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pods: []*v1.Pod{
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{Spec: cpuOnly, ObjectMeta: metav1.ObjectMeta{Labels: labels2}},
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{Spec: cpuOnly, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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{Spec: cpuOnly2, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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{Spec: cpuAndMemory, ObjectMeta: metav1.ObjectMeta{Labels: labels1}},
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},
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},
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{
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// Node1 scores on 0-10 scale
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// CPU Score: (6000 * 100) / 10000 = 60
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// Memory Score: (5000 * 100) / 20000 = 25
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// Node1 Score: (60 + 25) / 2 = 42
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// Node2 scores on 0-10 scale
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// CPU Score: (6000 * 100) / 10000 = 60
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// Memory Score: (10000 * 100) / 20000 = 50
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// Node2 Score: (60 + 50) / 2 = 55
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pod: &v1.Pod{Spec: cpuAndMemory},
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nodes: []*v1.Node{makeNode("machine1", 10000, 20000), makeNode("machine2", 10000, 20000)},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: 42}, {Name: "machine2", Score: 55}},
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name: "resources requested, pods scheduled with resources",
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pods: []*v1.Pod{
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{Spec: cpuOnly},
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{Spec: cpuAndMemory},
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},
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},
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{
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// Node1 scores on 0-10 scale
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// CPU Score: 5000 > 4000 return 0
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// Memory Score: (9000 * 100) / 10000 = 90
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// Node1 Score: (0 + 90) / 2 = 45
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// Node2 scores on 0-10 scale
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// CPU Score: (5000 * 100) / 10000 = 50
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// Memory Score: 9000 > 8000 return 0
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// Node2 Score: (50 + 0) / 2 = 25
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pod: &v1.Pod{Spec: bigCPUAndMemory},
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nodes: []*v1.Node{makeNode("machine1", 4000, 10000), makeNode("machine2", 10000, 8000)},
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expectedList: []framework.NodeScore{{Name: "machine1", Score: 45}, {Name: "machine2", Score: 25}},
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name: "resources requested with more than the node, pods scheduled with resources",
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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snapshot := cache.NewSnapshot(test.pods, test.nodes)
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fh, _ := framework.NewFramework(nil, nil, nil, framework.WithSnapshotSharedLister(snapshot))
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p, _ := NewMostAllocated(nil, fh)
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for i := range test.nodes {
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hostResult, err := p.(framework.ScorePlugin).Score(context.Background(), nil, test.pod, test.nodes[i].Name)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if !reflect.DeepEqual(test.expectedList[i].Score, hostResult) {
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t.Errorf("expected %#v, got %#v", test.expectedList[i].Score, hostResult)
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}
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}
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})
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}
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}
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