mirror of
https://github.com/k3s-io/kubernetes.git
synced 2026-01-04 23:17:50 +00:00
Move scheduler code out of plugin directory.
This moves plugin/pkg/scheduler to pkg/scheduler and plugin/cmd/kube-scheduler to cmd/kube-scheduler. Bulk of the work was done with gomvpkg, except for kube-scheduler main package.
This commit is contained in:
Jonathan Basseri
337
pkg/scheduler/core/extender_test.go
Normal file
337
pkg/scheduler/core/extender_test.go
Normal file
@@ -0,0 +1,337 @@
|
||||
/*
|
||||
Copyright 2015 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 core
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"k8s.io/api/core/v1"
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
"k8s.io/apimachinery/pkg/util/wait"
|
||||
"k8s.io/kubernetes/pkg/scheduler/algorithm"
|
||||
schedulerapi "k8s.io/kubernetes/pkg/scheduler/api"
|
||||
"k8s.io/kubernetes/pkg/scheduler/schedulercache"
|
||||
schedulertesting "k8s.io/kubernetes/pkg/scheduler/testing"
|
||||
)
|
||||
|
||||
type fitPredicate func(pod *v1.Pod, node *v1.Node) (bool, error)
|
||||
type priorityFunc func(pod *v1.Pod, nodes []*v1.Node) (*schedulerapi.HostPriorityList, error)
|
||||
|
||||
type priorityConfig struct {
|
||||
function priorityFunc
|
||||
weight int
|
||||
}
|
||||
|
||||
func errorPredicateExtender(pod *v1.Pod, node *v1.Node) (bool, error) {
|
||||
return false, fmt.Errorf("Some error")
|
||||
}
|
||||
|
||||
func falsePredicateExtender(pod *v1.Pod, node *v1.Node) (bool, error) {
|
||||
return false, nil
|
||||
}
|
||||
|
||||
func truePredicateExtender(pod *v1.Pod, node *v1.Node) (bool, error) {
|
||||
return true, nil
|
||||
}
|
||||
|
||||
func machine1PredicateExtender(pod *v1.Pod, node *v1.Node) (bool, error) {
|
||||
if node.Name == "machine1" {
|
||||
return true, nil
|
||||
}
|
||||
return false, nil
|
||||
}
|
||||
|
||||
func machine2PredicateExtender(pod *v1.Pod, node *v1.Node) (bool, error) {
|
||||
if node.Name == "machine2" {
|
||||
return true, nil
|
||||
}
|
||||
return false, nil
|
||||
}
|
||||
|
||||
func errorPrioritizerExtender(pod *v1.Pod, nodes []*v1.Node) (*schedulerapi.HostPriorityList, error) {
|
||||
return &schedulerapi.HostPriorityList{}, fmt.Errorf("Some error")
|
||||
}
|
||||
|
||||
func machine1PrioritizerExtender(pod *v1.Pod, nodes []*v1.Node) (*schedulerapi.HostPriorityList, error) {
|
||||
result := schedulerapi.HostPriorityList{}
|
||||
for _, node := range nodes {
|
||||
score := 1
|
||||
if node.Name == "machine1" {
|
||||
score = 10
|
||||
}
|
||||
result = append(result, schedulerapi.HostPriority{Host: node.Name, Score: score})
|
||||
}
|
||||
return &result, nil
|
||||
}
|
||||
|
||||
func machine2PrioritizerExtender(pod *v1.Pod, nodes []*v1.Node) (*schedulerapi.HostPriorityList, error) {
|
||||
result := schedulerapi.HostPriorityList{}
|
||||
for _, node := range nodes {
|
||||
score := 1
|
||||
if node.Name == "machine2" {
|
||||
score = 10
|
||||
}
|
||||
result = append(result, schedulerapi.HostPriority{Host: node.Name, Score: score})
|
||||
}
|
||||
return &result, nil
|
||||
}
|
||||
|
||||
func machine2Prioritizer(_ *v1.Pod, nodeNameToInfo map[string]*schedulercache.NodeInfo, nodes []*v1.Node) (schedulerapi.HostPriorityList, error) {
|
||||
result := []schedulerapi.HostPriority{}
|
||||
for _, node := range nodes {
|
||||
score := 1
|
||||
if node.Name == "machine2" {
|
||||
score = 10
|
||||
}
|
||||
result = append(result, schedulerapi.HostPriority{Host: node.Name, Score: score})
|
||||
}
|
||||
return result, nil
|
||||
}
|
||||
|
||||
type FakeExtender struct {
|
||||
predicates []fitPredicate
|
||||
prioritizers []priorityConfig
|
||||
weight int
|
||||
nodeCacheCapable bool
|
||||
filteredNodes []*v1.Node
|
||||
}
|
||||
|
||||
func (f *FakeExtender) Filter(pod *v1.Pod, nodes []*v1.Node, nodeNameToInfo map[string]*schedulercache.NodeInfo) ([]*v1.Node, schedulerapi.FailedNodesMap, error) {
|
||||
filtered := []*v1.Node{}
|
||||
failedNodesMap := schedulerapi.FailedNodesMap{}
|
||||
for _, node := range nodes {
|
||||
fits := true
|
||||
for _, predicate := range f.predicates {
|
||||
fit, err := predicate(pod, node)
|
||||
if err != nil {
|
||||
return []*v1.Node{}, schedulerapi.FailedNodesMap{}, err
|
||||
}
|
||||
if !fit {
|
||||
fits = false
|
||||
break
|
||||
}
|
||||
}
|
||||
if fits {
|
||||
filtered = append(filtered, node)
|
||||
} else {
|
||||
failedNodesMap[node.Name] = "FakeExtender failed"
|
||||
}
|
||||
}
|
||||
|
||||
f.filteredNodes = filtered
|
||||
if f.nodeCacheCapable {
|
||||
return filtered, failedNodesMap, nil
|
||||
}
|
||||
return filtered, failedNodesMap, nil
|
||||
}
|
||||
|
||||
func (f *FakeExtender) Prioritize(pod *v1.Pod, nodes []*v1.Node) (*schedulerapi.HostPriorityList, int, error) {
|
||||
result := schedulerapi.HostPriorityList{}
|
||||
combinedScores := map[string]int{}
|
||||
for _, prioritizer := range f.prioritizers {
|
||||
weight := prioritizer.weight
|
||||
if weight == 0 {
|
||||
continue
|
||||
}
|
||||
priorityFunc := prioritizer.function
|
||||
prioritizedList, err := priorityFunc(pod, nodes)
|
||||
if err != nil {
|
||||
return &schedulerapi.HostPriorityList{}, 0, err
|
||||
}
|
||||
for _, hostEntry := range *prioritizedList {
|
||||
combinedScores[hostEntry.Host] += hostEntry.Score * weight
|
||||
}
|
||||
}
|
||||
for host, score := range combinedScores {
|
||||
result = append(result, schedulerapi.HostPriority{Host: host, Score: score})
|
||||
}
|
||||
return &result, f.weight, nil
|
||||
}
|
||||
|
||||
func (f *FakeExtender) Bind(binding *v1.Binding) error {
|
||||
if len(f.filteredNodes) != 0 {
|
||||
for _, node := range f.filteredNodes {
|
||||
if node.Name == binding.Target.Name {
|
||||
f.filteredNodes = nil
|
||||
return nil
|
||||
}
|
||||
}
|
||||
err := fmt.Errorf("Node %v not in filtered nodes %v", binding.Target.Name, f.filteredNodes)
|
||||
f.filteredNodes = nil
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (f *FakeExtender) IsBinder() bool {
|
||||
return true
|
||||
}
|
||||
|
||||
var _ algorithm.SchedulerExtender = &FakeExtender{}
|
||||
|
||||
func TestGenericSchedulerWithExtenders(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
predicates map[string]algorithm.FitPredicate
|
||||
prioritizers []algorithm.PriorityConfig
|
||||
extenders []FakeExtender
|
||||
extenderPredicates []fitPredicate
|
||||
extenderPrioritizers []priorityConfig
|
||||
nodes []string
|
||||
expectedHost string
|
||||
expectsErr bool
|
||||
}{
|
||||
{
|
||||
predicates: map[string]algorithm.FitPredicate{"true": truePredicate},
|
||||
prioritizers: []algorithm.PriorityConfig{{Map: EqualPriorityMap, Weight: 1}},
|
||||
extenders: []FakeExtender{
|
||||
{
|
||||
predicates: []fitPredicate{truePredicateExtender},
|
||||
},
|
||||
{
|
||||
predicates: []fitPredicate{errorPredicateExtender},
|
||||
},
|
||||
},
|
||||
nodes: []string{"machine1", "machine2"},
|
||||
expectsErr: true,
|
||||
name: "test 1",
|
||||
},
|
||||
{
|
||||
predicates: map[string]algorithm.FitPredicate{"true": truePredicate},
|
||||
prioritizers: []algorithm.PriorityConfig{{Map: EqualPriorityMap, Weight: 1}},
|
||||
extenders: []FakeExtender{
|
||||
{
|
||||
predicates: []fitPredicate{truePredicateExtender},
|
||||
},
|
||||
{
|
||||
predicates: []fitPredicate{falsePredicateExtender},
|
||||
},
|
||||
},
|
||||
nodes: []string{"machine1", "machine2"},
|
||||
expectsErr: true,
|
||||
name: "test 2",
|
||||
},
|
||||
{
|
||||
predicates: map[string]algorithm.FitPredicate{"true": truePredicate},
|
||||
prioritizers: []algorithm.PriorityConfig{{Map: EqualPriorityMap, Weight: 1}},
|
||||
extenders: []FakeExtender{
|
||||
{
|
||||
predicates: []fitPredicate{truePredicateExtender},
|
||||
},
|
||||
{
|
||||
predicates: []fitPredicate{machine1PredicateExtender},
|
||||
},
|
||||
},
|
||||
nodes: []string{"machine1", "machine2"},
|
||||
expectedHost: "machine1",
|
||||
name: "test 3",
|
||||
},
|
||||
{
|
||||
predicates: map[string]algorithm.FitPredicate{"true": truePredicate},
|
||||
prioritizers: []algorithm.PriorityConfig{{Map: EqualPriorityMap, Weight: 1}},
|
||||
extenders: []FakeExtender{
|
||||
{
|
||||
predicates: []fitPredicate{machine2PredicateExtender},
|
||||
},
|
||||
{
|
||||
predicates: []fitPredicate{machine1PredicateExtender},
|
||||
},
|
||||
},
|
||||
nodes: []string{"machine1", "machine2"},
|
||||
expectsErr: true,
|
||||
name: "test 4",
|
||||
},
|
||||
{
|
||||
predicates: map[string]algorithm.FitPredicate{"true": truePredicate},
|
||||
prioritizers: []algorithm.PriorityConfig{{Map: EqualPriorityMap, Weight: 1}},
|
||||
extenders: []FakeExtender{
|
||||
{
|
||||
predicates: []fitPredicate{truePredicateExtender},
|
||||
prioritizers: []priorityConfig{{errorPrioritizerExtender, 10}},
|
||||
weight: 1,
|
||||
},
|
||||
},
|
||||
nodes: []string{"machine1"},
|
||||
expectedHost: "machine1",
|
||||
name: "test 5",
|
||||
},
|
||||
{
|
||||
predicates: map[string]algorithm.FitPredicate{"true": truePredicate},
|
||||
prioritizers: []algorithm.PriorityConfig{{Map: EqualPriorityMap, Weight: 1}},
|
||||
extenders: []FakeExtender{
|
||||
{
|
||||
predicates: []fitPredicate{truePredicateExtender},
|
||||
prioritizers: []priorityConfig{{machine1PrioritizerExtender, 10}},
|
||||
weight: 1,
|
||||
},
|
||||
{
|
||||
predicates: []fitPredicate{truePredicateExtender},
|
||||
prioritizers: []priorityConfig{{machine2PrioritizerExtender, 10}},
|
||||
weight: 5,
|
||||
},
|
||||
},
|
||||
nodes: []string{"machine1", "machine2"},
|
||||
expectedHost: "machine2",
|
||||
name: "test 6",
|
||||
},
|
||||
{
|
||||
predicates: map[string]algorithm.FitPredicate{"true": truePredicate},
|
||||
prioritizers: []algorithm.PriorityConfig{{Function: machine2Prioritizer, Weight: 20}},
|
||||
extenders: []FakeExtender{
|
||||
{
|
||||
predicates: []fitPredicate{truePredicateExtender},
|
||||
prioritizers: []priorityConfig{{machine1PrioritizerExtender, 10}},
|
||||
weight: 1,
|
||||
},
|
||||
},
|
||||
nodes: []string{"machine1", "machine2"},
|
||||
expectedHost: "machine2", // machine2 has higher score
|
||||
name: "test 7",
|
||||
},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
extenders := []algorithm.SchedulerExtender{}
|
||||
for ii := range test.extenders {
|
||||
extenders = append(extenders, &test.extenders[ii])
|
||||
}
|
||||
cache := schedulercache.New(time.Duration(0), wait.NeverStop)
|
||||
for _, name := range test.nodes {
|
||||
cache.AddNode(&v1.Node{ObjectMeta: metav1.ObjectMeta{Name: name}})
|
||||
}
|
||||
queue := NewSchedulingQueue()
|
||||
scheduler := NewGenericScheduler(
|
||||
cache, nil, queue, test.predicates, algorithm.EmptyPredicateMetadataProducer, test.prioritizers, algorithm.EmptyMetadataProducer, extenders, nil, schedulertesting.FakePersistentVolumeClaimLister{})
|
||||
podIgnored := &v1.Pod{}
|
||||
machine, err := scheduler.Schedule(podIgnored, schedulertesting.FakeNodeLister(makeNodeList(test.nodes)))
|
||||
if test.expectsErr {
|
||||
if err == nil {
|
||||
t.Errorf("Unexpected non-error for %s, machine %s", test.name, machine)
|
||||
}
|
||||
} else {
|
||||
if err != nil {
|
||||
t.Errorf("Unexpected error: %v", err)
|
||||
continue
|
||||
}
|
||||
if test.expectedHost != machine {
|
||||
t.Errorf("Failed : %s, Expected: %s, Saw: %s", test.name, test.expectedHost, machine)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user