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https://github.com/k3s-io/kubernetes.git
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Merge pull request #86591 from ahg-g/ahg1-default
Added scheduler algorithm provider registrey.
This commit is contained in:
Kubernetes Prow Robot
GitHub
commit
f13e2ed491
@ -8,18 +8,53 @@ load(
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go_library(
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name = "go_default_library",
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srcs = ["plugins.go"],
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srcs = [
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"plugins.go",
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"registry.go",
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],
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importpath = "k8s.io/kubernetes/pkg/scheduler/algorithmprovider",
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deps = ["//pkg/scheduler/algorithmprovider/defaults:go_default_library"],
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deps = [
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"//pkg/features:go_default_library",
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"//pkg/scheduler/algorithmprovider/defaults:go_default_library",
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"//pkg/scheduler/apis/config:go_default_library",
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"//pkg/scheduler/framework/plugins/defaultpodtopologyspread:go_default_library",
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"//pkg/scheduler/framework/plugins/imagelocality:go_default_library",
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"//pkg/scheduler/framework/plugins/interpodaffinity:go_default_library",
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"//pkg/scheduler/framework/plugins/nodeaffinity:go_default_library",
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"//pkg/scheduler/framework/plugins/nodename:go_default_library",
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"//pkg/scheduler/framework/plugins/nodeports:go_default_library",
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"//pkg/scheduler/framework/plugins/nodepreferavoidpods:go_default_library",
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"//pkg/scheduler/framework/plugins/noderesources:go_default_library",
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"//pkg/scheduler/framework/plugins/nodeunschedulable:go_default_library",
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"//pkg/scheduler/framework/plugins/nodevolumelimits:go_default_library",
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"//pkg/scheduler/framework/plugins/podtopologyspread:go_default_library",
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"//pkg/scheduler/framework/plugins/tainttoleration:go_default_library",
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"//pkg/scheduler/framework/plugins/volumebinding:go_default_library",
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"//pkg/scheduler/framework/plugins/volumerestrictions:go_default_library",
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"//pkg/scheduler/framework/plugins/volumezone:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",
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"//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
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"//vendor/k8s.io/klog:go_default_library",
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],
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)
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go_test(
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name = "go_default_test",
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srcs = ["plugins_test.go"],
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srcs = [
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"plugins_test.go",
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"registry_test.go",
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],
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embed = [":go_default_library"],
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deps = [
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"//pkg/scheduler:go_default_library",
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"//pkg/scheduler/apis/config:go_default_library",
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"//pkg/scheduler/framework/plugins:go_default_library",
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"//pkg/scheduler/framework/v1alpha1:go_default_library",
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"//pkg/scheduler/nodeinfo/snapshot:go_default_library",
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"//pkg/scheduler/volumebinder:go_default_library",
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"//staging/src/k8s.io/client-go/informers:go_default_library",
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"//staging/src/k8s.io/client-go/kubernetes/fake:go_default_library",
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"//vendor/github.com/google/go-cmp/cmp:go_default_library",
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],
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)
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160
pkg/scheduler/algorithmprovider/registry.go
Normal file
160
pkg/scheduler/algorithmprovider/registry.go
Normal file
@ -0,0 +1,160 @@
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/*
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Copyright 2014 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 algorithmprovider
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/runtime"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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"k8s.io/klog"
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"k8s.io/kubernetes/pkg/features"
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schedulerapi "k8s.io/kubernetes/pkg/scheduler/apis/config"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/defaultpodtopologyspread"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/imagelocality"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/interpodaffinity"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodeaffinity"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodename"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodeports"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodepreferavoidpods"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/noderesources"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodeunschedulable"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodevolumelimits"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/podtopologyspread"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/tainttoleration"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/volumebinding"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/volumerestrictions"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/volumezone"
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)
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// ClusterAutoscalerProvider defines the default autoscaler provider
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const ClusterAutoscalerProvider = "ClusterAutoscalerProvider"
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// Config the configuration of an algorithm provider.
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type Config struct {
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FrameworkPlugins *schedulerapi.Plugins
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FrameworkPluginConfig []schedulerapi.PluginConfig
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}
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// Registry is a collection of all available algorithm providers.
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type Registry map[string]*Config
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// NewRegistry returns an algorithm provider registry instance.
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func NewRegistry(hardPodAffinityWeight int64) Registry {
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defaultConfig := getDefaultConfig(hardPodAffinityWeight)
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applyFeatureGates(defaultConfig)
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caConfig := getClusterAutoscalerConfig(hardPodAffinityWeight)
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applyFeatureGates(caConfig)
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return Registry{
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schedulerapi.SchedulerDefaultProviderName: defaultConfig,
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ClusterAutoscalerProvider: caConfig,
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}
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}
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func getDefaultConfig(hardPodAffinityWeight int64) *Config {
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return &Config{
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FrameworkPlugins: &schedulerapi.Plugins{
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PreFilter: &schedulerapi.PluginSet{
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Enabled: []schedulerapi.Plugin{
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{Name: noderesources.FitName},
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{Name: nodeports.Name},
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{Name: interpodaffinity.Name},
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},
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},
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Filter: &schedulerapi.PluginSet{
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Enabled: []schedulerapi.Plugin{
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{Name: nodeunschedulable.Name},
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{Name: noderesources.FitName},
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{Name: nodename.Name},
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{Name: nodeports.Name},
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{Name: nodeaffinity.Name},
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{Name: volumerestrictions.Name},
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{Name: tainttoleration.Name},
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{Name: nodevolumelimits.EBSName},
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{Name: nodevolumelimits.GCEPDName},
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{Name: nodevolumelimits.CSIName},
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{Name: nodevolumelimits.AzureDiskName},
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{Name: volumebinding.Name},
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{Name: volumezone.Name},
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{Name: interpodaffinity.Name},
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},
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},
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PostFilter: &schedulerapi.PluginSet{
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Enabled: []schedulerapi.Plugin{
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{Name: interpodaffinity.Name},
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{Name: tainttoleration.Name},
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},
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},
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Score: &schedulerapi.PluginSet{
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Enabled: []schedulerapi.Plugin{
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{Name: noderesources.BalancedAllocationName, Weight: 1},
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{Name: imagelocality.Name, Weight: 1},
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{Name: interpodaffinity.Name, Weight: 1},
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{Name: noderesources.LeastAllocatedName, Weight: 1},
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{Name: nodeaffinity.Name, Weight: 1},
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{Name: nodepreferavoidpods.Name, Weight: 10000},
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{Name: defaultpodtopologyspread.Name, Weight: 1},
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{Name: tainttoleration.Name, Weight: 1},
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},
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},
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},
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FrameworkPluginConfig: []schedulerapi.PluginConfig{
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{
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Name: interpodaffinity.Name,
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Args: runtime.Unknown{Raw: []byte(fmt.Sprintf(`{"hardPodAffinityWeight":%d}`, hardPodAffinityWeight))},
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},
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},
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}
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}
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func getClusterAutoscalerConfig(hardPodAffinityWeight int64) *Config {
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defaultConfig := getDefaultConfig(hardPodAffinityWeight)
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caConfig := Config{
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FrameworkPlugins: &schedulerapi.Plugins{},
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}
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defaultConfig.FrameworkPlugins.DeepCopyInto(caConfig.FrameworkPlugins)
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caConfig.FrameworkPluginConfig = append([]schedulerapi.PluginConfig(nil), defaultConfig.FrameworkPluginConfig...)
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// Replace least with most requested.
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for i := range caConfig.FrameworkPlugins.Score.Enabled {
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if caConfig.FrameworkPlugins.Score.Enabled[i].Name == noderesources.LeastAllocatedName {
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caConfig.FrameworkPlugins.Score.Enabled[i].Name = noderesources.MostAllocatedName
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}
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}
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return &caConfig
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}
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func applyFeatureGates(config *Config) {
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// Only add EvenPodsSpread if the feature is enabled.
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if utilfeature.DefaultFeatureGate.Enabled(features.EvenPodsSpread) {
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klog.Infof("Registering EvenPodsSpread predicate and priority function")
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f := schedulerapi.Plugin{Name: podtopologyspread.Name}
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config.FrameworkPlugins.PreFilter.Enabled = append(config.FrameworkPlugins.PreFilter.Enabled, f)
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config.FrameworkPlugins.Filter.Enabled = append(config.FrameworkPlugins.Filter.Enabled, f)
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s := schedulerapi.Plugin{Name: podtopologyspread.Name, Weight: 1}
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config.FrameworkPlugins.Score.Enabled = append(config.FrameworkPlugins.Score.Enabled, s)
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}
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// Prioritizes nodes that satisfy pod's resource limits
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if utilfeature.DefaultFeatureGate.Enabled(features.ResourceLimitsPriorityFunction) {
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klog.Infof("Registering resourcelimits priority function")
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// TODO(ahg-g): append to config.FrameworkPlugins.Score.Enabled when available.
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}
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}
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99
pkg/scheduler/algorithmprovider/registry_test.go
Normal file
99
pkg/scheduler/algorithmprovider/registry_test.go
Normal file
@ -0,0 +1,99 @@
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/*
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Copyright 2017 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 algorithmprovider
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import (
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
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"k8s.io/client-go/informers"
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"k8s.io/client-go/kubernetes/fake"
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"k8s.io/kubernetes/pkg/scheduler"
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"k8s.io/kubernetes/pkg/scheduler/apis/config"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins"
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framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
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nodeinfosnapshot "k8s.io/kubernetes/pkg/scheduler/nodeinfo/snapshot"
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"k8s.io/kubernetes/pkg/scheduler/volumebinder"
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)
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func TestCompatibility(t *testing.T) {
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testcases := []struct {
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name string
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provider string
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wantPlugins map[string][]config.Plugin
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}{
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{
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name: "DefaultProvider",
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provider: config.SchedulerDefaultProviderName,
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},
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{
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name: "ClusterAutoscalerProvider",
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provider: ClusterAutoscalerProvider,
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},
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}
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for _, tc := range testcases {
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t.Run(tc.name, func(t *testing.T) {
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client := fake.NewSimpleClientset()
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informerFactory := informers.NewSharedInformerFactory(client, 0)
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sched, err := scheduler.New(
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client,
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informerFactory,
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informerFactory.Core().V1().Pods(),
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nil,
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make(chan struct{}),
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scheduler.WithAlgorithmSource(config.SchedulerAlgorithmSource{
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Provider: &tc.provider,
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}))
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if err != nil {
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t.Fatalf("Error constructing: %v", err)
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}
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gotPlugins := sched.Framework.ListPlugins()
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volumeBinder := volumebinder.NewVolumeBinder(
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client,
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informerFactory.Core().V1().Nodes(),
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informerFactory.Storage().V1().CSINodes(),
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informerFactory.Core().V1().PersistentVolumeClaims(),
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informerFactory.Core().V1().PersistentVolumes(),
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informerFactory.Storage().V1().StorageClasses(),
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time.Second,
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)
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providerRegistry := NewRegistry(1)
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config := providerRegistry[tc.provider]
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fwk, err := framework.NewFramework(
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plugins.NewInTreeRegistry(&plugins.RegistryArgs{
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VolumeBinder: volumeBinder,
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}),
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config.FrameworkPlugins,
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config.FrameworkPluginConfig,
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framework.WithClientSet(client),
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framework.WithInformerFactory(informerFactory),
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framework.WithSnapshotSharedLister(nodeinfosnapshot.NewEmptySnapshot()),
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)
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if err != nil {
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t.Fatalf("error initializing the scheduling framework: %v", err)
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}
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wantPlugins := fwk.ListPlugins()
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if diff := cmp.Diff(wantPlugins, gotPlugins); diff != "" {
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t.Errorf("unexpected plugins diff (-want, +got): %s", diff)
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}
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})
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}
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}
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