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RequestedToCapacityRatio as score plugin
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43 changes: 43 additions & 0 deletions
43
pkg/scheduler/framework/plugins/requestedtocapacityratio/BUILD
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test") | ||
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| go_library( | ||
| name = "go_default_library", | ||
| srcs = ["requested_to_capacity_ratio.go"], | ||
| importpath = "k8s.io/kubernetes/pkg/scheduler/framework/plugins/requestedtocapacityratio", | ||
| visibility = ["//visibility:public"], | ||
| deps = [ | ||
| "//pkg/scheduler/algorithm/priorities:go_default_library", | ||
| "//pkg/scheduler/framework/plugins/migration:go_default_library", | ||
| "//pkg/scheduler/framework/v1alpha1:go_default_library", | ||
| "//staging/src/k8s.io/api/core/v1:go_default_library", | ||
| "//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library", | ||
| ], | ||
| ) | ||
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| go_test( | ||
| name = "go_default_test", | ||
| srcs = ["requested_to_capacity_ratio_test.go"], | ||
| embed = [":go_default_library"], | ||
| deps = [ | ||
| "//pkg/scheduler/framework/v1alpha1:go_default_library", | ||
| "//pkg/scheduler/nodeinfo/snapshot:go_default_library", | ||
| "//staging/src/k8s.io/api/core/v1:go_default_library", | ||
| "//staging/src/k8s.io/apimachinery/pkg/api/resource:go_default_library", | ||
| "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library", | ||
| "//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library", | ||
| ], | ||
| ) | ||
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| filegroup( | ||
| name = "package-srcs", | ||
| srcs = glob(["**"]), | ||
| tags = ["automanaged"], | ||
| visibility = ["//visibility:private"], | ||
| ) | ||
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| filegroup( | ||
| name = "all-srcs", | ||
| srcs = [":package-srcs"], | ||
| tags = ["automanaged"], | ||
| visibility = ["//visibility:public"], | ||
| ) |
80 changes: 80 additions & 0 deletions
80
pkg/scheduler/framework/plugins/requestedtocapacityratio/requested_to_capacity_ratio.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| /* | ||
| Copyright 2019 The Kubernetes Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
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| package requestedtocapacityratio | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
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| v1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
| "k8s.io/kubernetes/pkg/scheduler/algorithm/priorities" | ||
| "k8s.io/kubernetes/pkg/scheduler/framework/plugins/migration" | ||
| framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1" | ||
| ) | ||
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| // Name of this plugin. | ||
| const Name = "RequestedToCapacityRatio" | ||
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| // Args holds the args that are used to configure the plugin. | ||
| type Args struct { | ||
| FunctionShape priorities.FunctionShape | ||
| ResourceToWeightMap priorities.ResourceToWeightMap | ||
| } | ||
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| // New initializes a new plugin and returns it. | ||
| func New(plArgs *runtime.Unknown, handle framework.FrameworkHandle) (framework.Plugin, error) { | ||
| args := &Args{} | ||
| if err := framework.DecodeInto(plArgs, args); err != nil { | ||
| return nil, err | ||
| } | ||
| p := priorities.RequestedToCapacityRatioResourceAllocationPriority(args.FunctionShape, args.ResourceToWeightMap) | ||
| return &RequestedToCapacityRatio{ | ||
| handle: handle, | ||
| prioritize: p.PriorityMap, | ||
| }, nil | ||
| } | ||
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| // RequestedToCapacityRatio is a score plugin that allow users to apply bin packing | ||
| // on core resources like CPU, Memory as well as extended resources like accelerators. | ||
| type RequestedToCapacityRatio struct { | ||
| handle framework.FrameworkHandle | ||
| prioritize priorities.PriorityMapFunction | ||
| } | ||
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| var _ framework.ScorePlugin = &RequestedToCapacityRatio{} | ||
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| // Name returns name of the plugin. It is used in logs, etc. | ||
| func (pl *RequestedToCapacityRatio) Name() string { | ||
| return Name | ||
| } | ||
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| // Score invoked at the score extension point. | ||
| func (pl *RequestedToCapacityRatio) Score(ctx context.Context, _ *framework.CycleState, pod *v1.Pod, nodeName string) (int64, *framework.Status) { | ||
| nodeInfo, err := pl.handle.SnapshotSharedLister().NodeInfos().Get(nodeName) | ||
| if err != nil { | ||
| return 0, framework.NewStatus(framework.Error, fmt.Sprintf("getting node %q from Snapshot: %v", nodeName, err)) | ||
| } | ||
| // Note that RequestedToCapacityRatioPriority doesn't use priority metadata, hence passing nil here. | ||
| s, err := pl.prioritize(pod, nil, nodeInfo) | ||
| return s.Score, migration.ErrorToFrameworkStatus(err) | ||
| } | ||
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| // ScoreExtensions of the Score plugin. | ||
| func (pl *RequestedToCapacityRatio) ScoreExtensions() framework.ScoreExtensions { | ||
| return nil | ||
| } |
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