633 lines
17 KiB
Go
633 lines
17 KiB
Go
/*
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Copyright 2020 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 scheme
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import (
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"bytes"
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"testing"
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"github.com/google/go-cmp/cmp"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/kube-scheduler/config/v1beta1"
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"k8s.io/kubernetes/pkg/scheduler/apis/config"
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"k8s.io/utils/pointer"
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"sigs.k8s.io/yaml"
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)
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// TestCodecsDecodePluginConfig tests that embedded plugin args get decoded
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// into their appropriate internal types and defaults are applied.
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func TestCodecsDecodePluginConfig(t *testing.T) {
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testCases := []struct {
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name string
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data []byte
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wantErr string
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wantProfiles []config.KubeSchedulerProfile
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}{
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{
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name: "v1beta1 all plugin args in default profile",
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data: []byte(`
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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kind: KubeSchedulerConfiguration
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profiles:
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- pluginConfig:
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- name: DefaultPreemption
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args:
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minCandidateNodesPercentage: 50
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minCandidateNodesAbsolute: 500
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- name: InterPodAffinity
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args:
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hardPodAffinityWeight: 5
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- name: NodeLabel
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args:
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presentLabels: ["foo"]
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- name: NodeResourcesFit
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args:
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ignoredResources: ["foo"]
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- name: RequestedToCapacityRatio
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args:
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shape:
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- utilization: 1
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- name: PodTopologySpread
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args:
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defaultConstraints:
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- maxSkew: 1
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topologyKey: zone
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whenUnsatisfiable: ScheduleAnyway
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- name: ServiceAffinity
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args:
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affinityLabels: ["bar"]
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- name: NodeResourcesLeastAllocated
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args:
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resources:
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- name: cpu
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weight: 2
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- name: unknown
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weight: 1
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- name: NodeResourcesMostAllocated
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args:
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resources:
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- name: memory
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weight: 1
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- name: VolumeBinding
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args:
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bindTimeoutSeconds: 300
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- name: NodeAffinity
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args:
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addedAffinity:
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requiredDuringSchedulingIgnoredDuringExecution:
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nodeSelectorTerms:
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- matchExpressions:
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- key: foo
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operator: In
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values: ["bar"]
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`),
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wantProfiles: []config.KubeSchedulerProfile{
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{
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SchedulerName: "default-scheduler",
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PluginConfig: []config.PluginConfig{
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{
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Name: "DefaultPreemption",
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Args: &config.DefaultPreemptionArgs{MinCandidateNodesPercentage: 50, MinCandidateNodesAbsolute: 500},
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},
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{
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Name: "InterPodAffinity",
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Args: &config.InterPodAffinityArgs{HardPodAffinityWeight: 5},
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},
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{
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Name: "NodeLabel",
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Args: &config.NodeLabelArgs{PresentLabels: []string{"foo"}},
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},
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{
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Name: "NodeResourcesFit",
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Args: &config.NodeResourcesFitArgs{IgnoredResources: []string{"foo"}},
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},
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{
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Name: "RequestedToCapacityRatio",
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Args: &config.RequestedToCapacityRatioArgs{
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Shape: []config.UtilizationShapePoint{{Utilization: 1}},
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Resources: []config.ResourceSpec{{Name: "cpu", Weight: 1}, {Name: "memory", Weight: 1}},
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},
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},
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{
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Name: "PodTopologySpread",
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Args: &config.PodTopologySpreadArgs{
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DefaultConstraints: []corev1.TopologySpreadConstraint{
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{MaxSkew: 1, TopologyKey: "zone", WhenUnsatisfiable: corev1.ScheduleAnyway},
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},
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DefaultingType: config.ListDefaulting,
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},
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},
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{
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Name: "ServiceAffinity",
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Args: &config.ServiceAffinityArgs{
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AffinityLabels: []string{"bar"},
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},
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},
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{
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Name: "NodeResourcesLeastAllocated",
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Args: &config.NodeResourcesLeastAllocatedArgs{
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Resources: []config.ResourceSpec{{Name: "cpu", Weight: 2}, {Name: "unknown", Weight: 1}},
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},
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},
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{
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Name: "NodeResourcesMostAllocated",
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Args: &config.NodeResourcesMostAllocatedArgs{
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Resources: []config.ResourceSpec{{Name: "memory", Weight: 1}},
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},
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},
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{
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Name: "VolumeBinding",
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Args: &config.VolumeBindingArgs{
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BindTimeoutSeconds: 300,
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},
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},
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{
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Name: "NodeAffinity",
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Args: &config.NodeAffinityArgs{
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AddedAffinity: &corev1.NodeAffinity{
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RequiredDuringSchedulingIgnoredDuringExecution: &corev1.NodeSelector{
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NodeSelectorTerms: []corev1.NodeSelectorTerm{
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{
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MatchExpressions: []corev1.NodeSelectorRequirement{
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{
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Key: "foo",
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Operator: corev1.NodeSelectorOpIn,
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Values: []string{"bar"},
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},
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},
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},
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},
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},
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},
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},
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},
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},
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},
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},
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},
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{
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name: "v1beta1 plugins can include version and kind",
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data: []byte(`
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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kind: KubeSchedulerConfiguration
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profiles:
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- pluginConfig:
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- name: NodeLabel
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args:
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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kind: NodeLabelArgs
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presentLabels: ["bars"]
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`),
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wantProfiles: []config.KubeSchedulerProfile{
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{
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SchedulerName: "default-scheduler",
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PluginConfig: []config.PluginConfig{
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{
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Name: "NodeLabel",
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Args: &config.NodeLabelArgs{PresentLabels: []string{"bars"}},
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},
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},
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},
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},
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},
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{
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name: "plugin group and kind should match the type",
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data: []byte(`
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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kind: KubeSchedulerConfiguration
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profiles:
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- pluginConfig:
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- name: NodeLabel
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args:
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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kind: InterPodAffinityArgs
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`),
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wantErr: `decoding .profiles[0].pluginConfig[0]: args for plugin NodeLabel were not of type NodeLabelArgs.kubescheduler.config.k8s.io, got InterPodAffinityArgs.kubescheduler.config.k8s.io`,
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},
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{
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name: "v1beta1 RequestedToCapacityRatioArgs shape encoding is strict",
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data: []byte(`
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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kind: KubeSchedulerConfiguration
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profiles:
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- pluginConfig:
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- name: RequestedToCapacityRatio
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args:
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shape:
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- Utilization: 1
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Score: 2
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`),
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wantErr: `decoding .profiles[0].pluginConfig[0]: decoding args for plugin RequestedToCapacityRatio: strict decoder error for {"shape":[{"Score":2,"Utilization":1}]}: v1beta1.RequestedToCapacityRatioArgs.Shape: []v1beta1.UtilizationShapePoint: v1beta1.UtilizationShapePoint.ReadObject: found unknown field: Score, error found in #10 byte of ...|:[{"Score":2,"Utiliz|..., bigger context ...|{"shape":[{"Score":2,"Utilization":1}]}|...`,
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},
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{
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name: "v1beta1 RequestedToCapacityRatioArgs resources encoding is strict",
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data: []byte(`
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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kind: KubeSchedulerConfiguration
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profiles:
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- pluginConfig:
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- name: RequestedToCapacityRatio
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args:
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shape:
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- utilization: 1
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score: 2
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resources:
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- Name: 1
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Weight: 2
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`),
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wantErr: `decoding .profiles[0].pluginConfig[0]: decoding args for plugin RequestedToCapacityRatio: strict decoder error for {"resources":[{"Name":1,"Weight":2}],"shape":[{"score":2,"utilization":1}]}: v1beta1.RequestedToCapacityRatioArgs.Shape: []v1beta1.UtilizationShapePoint: Resources: []v1beta1.ResourceSpec: v1beta1.ResourceSpec.ReadObject: found unknown field: Name, error found in #10 byte of ...|":[{"Name":1,"Weight|..., bigger context ...|{"resources":[{"Name":1,"Weight":2}],"shape":[{"score":2,"utilization":|...`,
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},
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{
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name: "out-of-tree plugin args",
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data: []byte(`
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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kind: KubeSchedulerConfiguration
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profiles:
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- pluginConfig:
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- name: OutOfTreePlugin
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args:
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foo: bar
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`),
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wantProfiles: []config.KubeSchedulerProfile{
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{
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SchedulerName: "default-scheduler",
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PluginConfig: []config.PluginConfig{
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{
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Name: "OutOfTreePlugin",
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Args: &runtime.Unknown{
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ContentType: "application/json",
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Raw: []byte(`{"foo":"bar"}`),
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},
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},
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},
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},
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},
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},
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{
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name: "empty and no plugin args",
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data: []byte(`
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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kind: KubeSchedulerConfiguration
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profiles:
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- pluginConfig:
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- name: DefaultPreemption
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args:
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- name: InterPodAffinity
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args:
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- name: NodeResourcesFit
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- name: OutOfTreePlugin
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args:
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- name: NodeResourcesLeastAllocated
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args:
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- name: NodeResourcesMostAllocated
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args:
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- name: VolumeBinding
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args:
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- name: PodTopologySpread
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- name: NodeAffinity
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`),
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wantProfiles: []config.KubeSchedulerProfile{
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{
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SchedulerName: "default-scheduler",
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PluginConfig: []config.PluginConfig{
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{
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Name: "DefaultPreemption",
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Args: &config.DefaultPreemptionArgs{MinCandidateNodesPercentage: 10, MinCandidateNodesAbsolute: 100},
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},
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{
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Name: "InterPodAffinity",
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Args: &config.InterPodAffinityArgs{
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HardPodAffinityWeight: 1,
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},
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},
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{
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Name: "NodeResourcesFit",
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Args: &config.NodeResourcesFitArgs{},
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},
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{Name: "OutOfTreePlugin"},
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{
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Name: "NodeResourcesLeastAllocated",
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Args: &config.NodeResourcesLeastAllocatedArgs{
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Resources: []config.ResourceSpec{{Name: "cpu", Weight: 1}, {Name: "memory", Weight: 1}},
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},
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},
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{
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Name: "NodeResourcesMostAllocated",
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Args: &config.NodeResourcesMostAllocatedArgs{
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Resources: []config.ResourceSpec{{Name: "cpu", Weight: 1}, {Name: "memory", Weight: 1}},
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},
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},
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{
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Name: "VolumeBinding",
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Args: &config.VolumeBindingArgs{
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BindTimeoutSeconds: 600,
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},
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},
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{
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Name: "PodTopologySpread",
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Args: &config.PodTopologySpreadArgs{
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DefaultingType: config.SystemDefaulting,
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},
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},
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{
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Name: "NodeAffinity",
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Args: &config.NodeAffinityArgs{},
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},
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},
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},
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},
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},
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}
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decoder := Codecs.UniversalDecoder()
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for _, tt := range testCases {
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t.Run(tt.name, func(t *testing.T) {
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obj, gvk, err := decoder.Decode(tt.data, nil, nil)
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if err != nil {
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if tt.wantErr != err.Error() {
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t.Fatalf("\ngot err:\n\t%v\nwant:\n\t%s", err, tt.wantErr)
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}
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return
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}
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if len(tt.wantErr) != 0 {
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t.Fatalf("no error produced, wanted %v", tt.wantErr)
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}
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got, ok := obj.(*config.KubeSchedulerConfiguration)
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if !ok {
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t.Fatalf("decoded into %s, want %s", gvk, config.SchemeGroupVersion.WithKind("KubeSchedulerConfiguration"))
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}
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if diff := cmp.Diff(tt.wantProfiles, got.Profiles); diff != "" {
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t.Errorf("unexpected configuration (-want,+got):\n%s", diff)
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}
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})
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}
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}
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func TestCodecsEncodePluginConfig(t *testing.T) {
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testCases := []struct {
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name string
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obj runtime.Object
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version schema.GroupVersion
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want string
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}{
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{
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name: "v1beta1 in-tree and out-of-tree plugins",
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version: v1beta1.SchemeGroupVersion,
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obj: &v1beta1.KubeSchedulerConfiguration{
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Profiles: []v1beta1.KubeSchedulerProfile{
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{
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PluginConfig: []v1beta1.PluginConfig{
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{
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Name: "InterPodAffinity",
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Args: runtime.RawExtension{
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Object: &v1beta1.InterPodAffinityArgs{
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HardPodAffinityWeight: pointer.Int32Ptr(5),
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},
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},
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},
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{
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Name: "VolumeBinding",
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Args: runtime.RawExtension{
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Object: &v1beta1.VolumeBindingArgs{
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BindTimeoutSeconds: pointer.Int64Ptr(300),
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},
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},
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},
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{
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Name: "RequestedToCapacityRatio",
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Args: runtime.RawExtension{
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Object: &v1beta1.RequestedToCapacityRatioArgs{
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Shape: []v1beta1.UtilizationShapePoint{
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{Utilization: 1, Score: 2},
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},
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Resources: []v1beta1.ResourceSpec{
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{Name: "cpu", Weight: 2},
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},
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},
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},
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},
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{
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Name: "NodeResourcesLeastAllocated",
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Args: runtime.RawExtension{
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Object: &v1beta1.NodeResourcesLeastAllocatedArgs{
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Resources: []v1beta1.ResourceSpec{
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{Name: "mem", Weight: 2},
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},
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},
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},
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},
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{
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Name: "PodTopologySpread",
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Args: runtime.RawExtension{
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Object: &v1beta1.PodTopologySpreadArgs{
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DefaultConstraints: []corev1.TopologySpreadConstraint{},
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},
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},
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},
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{
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Name: "OutOfTreePlugin",
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Args: runtime.RawExtension{
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Raw: []byte(`{"foo":"bar"}`),
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},
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},
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},
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},
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},
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},
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want: `apiVersion: kubescheduler.config.k8s.io/v1beta1
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clientConnection:
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acceptContentTypes: ""
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burst: 0
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contentType: ""
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kubeconfig: ""
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qps: 0
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kind: KubeSchedulerConfiguration
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leaderElection:
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leaderElect: null
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leaseDuration: 0s
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renewDeadline: 0s
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resourceLock: ""
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resourceName: ""
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resourceNamespace: ""
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retryPeriod: 0s
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profiles:
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- pluginConfig:
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- args:
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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hardPodAffinityWeight: 5
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kind: InterPodAffinityArgs
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name: InterPodAffinity
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- args:
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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bindTimeoutSeconds: 300
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kind: VolumeBindingArgs
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|
name: VolumeBinding
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- args:
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apiVersion: kubescheduler.config.k8s.io/v1beta1
|
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kind: RequestedToCapacityRatioArgs
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resources:
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- name: cpu
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weight: 2
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shape:
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- score: 2
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utilization: 1
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name: RequestedToCapacityRatio
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- args:
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apiVersion: kubescheduler.config.k8s.io/v1beta1
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kind: NodeResourcesLeastAllocatedArgs
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resources:
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- name: mem
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weight: 2
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name: NodeResourcesLeastAllocated
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- args:
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apiVersion: kubescheduler.config.k8s.io/v1beta1
|
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kind: PodTopologySpreadArgs
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name: PodTopologySpread
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- args:
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foo: bar
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name: OutOfTreePlugin
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`,
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},
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{
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name: "v1beta1 in-tree and out-of-tree plugins from internal",
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version: v1beta1.SchemeGroupVersion,
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obj: &config.KubeSchedulerConfiguration{
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Parallelism: 8,
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Profiles: []config.KubeSchedulerProfile{
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{
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PluginConfig: []config.PluginConfig{
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{
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Name: "InterPodAffinity",
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Args: &config.InterPodAffinityArgs{
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HardPodAffinityWeight: 5,
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},
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},
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{
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Name: "NodeResourcesMostAllocated",
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Args: &config.NodeResourcesMostAllocatedArgs{
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Resources: []config.ResourceSpec{{Name: "cpu", Weight: 1}},
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},
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},
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{
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Name: "VolumeBinding",
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Args: &config.VolumeBindingArgs{
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BindTimeoutSeconds: 300,
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},
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},
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{
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Name: "PodTopologySpread",
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Args: &config.PodTopologySpreadArgs{},
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},
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{
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Name: "OutOfTreePlugin",
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Args: &runtime.Unknown{
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Raw: []byte(`{"foo":"bar"}`),
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},
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},
|
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},
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},
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},
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},
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|
want: `apiVersion: kubescheduler.config.k8s.io/v1beta1
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clientConnection:
|
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acceptContentTypes: ""
|
|
burst: 0
|
|
contentType: ""
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|
kubeconfig: ""
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qps: 0
|
|
enableContentionProfiling: false
|
|
enableProfiling: false
|
|
healthzBindAddress: ""
|
|
kind: KubeSchedulerConfiguration
|
|
leaderElection:
|
|
leaderElect: false
|
|
leaseDuration: 0s
|
|
renewDeadline: 0s
|
|
resourceLock: ""
|
|
resourceName: ""
|
|
resourceNamespace: ""
|
|
retryPeriod: 0s
|
|
metricsBindAddress: ""
|
|
parallelism: 8
|
|
percentageOfNodesToScore: 0
|
|
podInitialBackoffSeconds: 0
|
|
podMaxBackoffSeconds: 0
|
|
profiles:
|
|
- pluginConfig:
|
|
- args:
|
|
apiVersion: kubescheduler.config.k8s.io/v1beta1
|
|
hardPodAffinityWeight: 5
|
|
kind: InterPodAffinityArgs
|
|
name: InterPodAffinity
|
|
- args:
|
|
apiVersion: kubescheduler.config.k8s.io/v1beta1
|
|
kind: NodeResourcesMostAllocatedArgs
|
|
resources:
|
|
- name: cpu
|
|
weight: 1
|
|
name: NodeResourcesMostAllocated
|
|
- args:
|
|
apiVersion: kubescheduler.config.k8s.io/v1beta1
|
|
bindTimeoutSeconds: 300
|
|
kind: VolumeBindingArgs
|
|
name: VolumeBinding
|
|
- args:
|
|
apiVersion: kubescheduler.config.k8s.io/v1beta1
|
|
kind: PodTopologySpreadArgs
|
|
name: PodTopologySpread
|
|
- args:
|
|
foo: bar
|
|
name: OutOfTreePlugin
|
|
schedulerName: ""
|
|
`,
|
|
},
|
|
}
|
|
yamlInfo, ok := runtime.SerializerInfoForMediaType(Codecs.SupportedMediaTypes(), runtime.ContentTypeYAML)
|
|
if !ok {
|
|
t.Fatalf("unable to locate encoder -- %q is not a supported media type", runtime.ContentTypeYAML)
|
|
}
|
|
jsonInfo, ok := runtime.SerializerInfoForMediaType(Codecs.SupportedMediaTypes(), runtime.ContentTypeJSON)
|
|
if !ok {
|
|
t.Fatalf("unable to locate encoder -- %q is not a supported media type", runtime.ContentTypeJSON)
|
|
}
|
|
for _, tt := range testCases {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
encoder := Codecs.EncoderForVersion(yamlInfo.Serializer, tt.version)
|
|
var buf bytes.Buffer
|
|
if err := encoder.Encode(tt.obj, &buf); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if diff := cmp.Diff(tt.want, buf.String()); diff != "" {
|
|
t.Errorf("unexpected encoded configuration:\n%s", diff)
|
|
}
|
|
encoder = Codecs.EncoderForVersion(jsonInfo.Serializer, tt.version)
|
|
buf = bytes.Buffer{}
|
|
if err := encoder.Encode(tt.obj, &buf); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
out, err := yaml.JSONToYAML(buf.Bytes())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if diff := cmp.Diff(tt.want, string(out)); diff != "" {
|
|
t.Errorf("unexpected encoded configuration:\n%s", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|