mirror of
https://github.com/k3s-io/kubernetes.git
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be080584c6
* scheduler(NodeResourcesFit): calculatePodResourceRequest in PreScore phase * scheduler(NodeResourcesFit and NodeResourcesBalancedAllocation): calculatePodResourceRequest in PreScore phase * modify the comments and tests. * revert the tests. * don't need consider nodes. * use list instead of map. * add comment for podRequests. * avoid using negative wording in variable names.
653 lines
19 KiB
Go
653 lines
19 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 app
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import (
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"context"
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"fmt"
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"net"
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"net/http"
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"net/http/httptest"
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"os"
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"path/filepath"
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
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"github.com/spf13/pflag"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apiserver/pkg/util/feature"
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componentbaseconfig "k8s.io/component-base/config"
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"k8s.io/component-base/featuregate"
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featuregatetesting "k8s.io/component-base/featuregate/testing"
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"k8s.io/kube-scheduler/config/v1beta3"
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"k8s.io/kubernetes/cmd/kube-scheduler/app/options"
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"k8s.io/kubernetes/pkg/features"
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"k8s.io/kubernetes/pkg/scheduler/apis/config"
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"k8s.io/kubernetes/pkg/scheduler/apis/config/testing/defaults"
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"k8s.io/kubernetes/pkg/scheduler/framework"
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)
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func TestSetup(t *testing.T) {
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// temp dir
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tmpDir, err := os.MkdirTemp("", "scheduler-options")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tmpDir)
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// https server
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server := httptest.NewTLSServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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w.WriteHeader(200)
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w.Write([]byte(`ok`))
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}))
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defer server.Close()
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configKubeconfig := filepath.Join(tmpDir, "config.kubeconfig")
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if err := os.WriteFile(configKubeconfig, []byte(fmt.Sprintf(`
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apiVersion: v1
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kind: Config
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clusters:
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- cluster:
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insecure-skip-tls-verify: true
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server: %s
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name: default
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contexts:
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- context:
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cluster: default
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user: default
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name: default
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current-context: default
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users:
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- name: default
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user:
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username: config
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`, server.URL)), os.FileMode(0600)); err != nil {
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t.Fatal(err)
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}
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// plugin config
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pluginConfigFilev1 := filepath.Join(tmpDir, "pluginv1.yaml")
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if err := os.WriteFile(pluginConfigFilev1, []byte(fmt.Sprintf(`
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apiVersion: kubescheduler.config.k8s.io/v1
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kind: KubeSchedulerConfiguration
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clientConnection:
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kubeconfig: '%s'
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profiles:
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- plugins:
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multiPoint:
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enabled:
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- name: SchedulingGates
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- name: DefaultBinder
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- name: PrioritySort
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- name: DefaultPreemption
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- name: VolumeBinding
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- name: NodeResourcesFit
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- name: NodePorts
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- name: InterPodAffinity
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- name: TaintToleration
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disabled:
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- name: "*"
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preFilter:
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disabled:
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- name: VolumeBinding
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- name: InterPodAffinity
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filter:
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disabled:
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- name: VolumeBinding
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- name: InterPodAffinity
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- name: TaintToleration
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score:
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disabled:
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- name: VolumeBinding
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- name: NodeResourcesFit
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`, configKubeconfig)), os.FileMode(0600)); err != nil {
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t.Fatal(err)
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}
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// plugin config
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pluginConfigFilev1beta3 := filepath.Join(tmpDir, "pluginv1beta3.yaml")
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if err := os.WriteFile(pluginConfigFilev1beta3, []byte(fmt.Sprintf(`
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apiVersion: kubescheduler.config.k8s.io/v1beta3
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kind: KubeSchedulerConfiguration
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clientConnection:
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kubeconfig: '%s'
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profiles:
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- plugins:
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multiPoint:
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enabled:
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- name: SchedulingGates
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- name: DefaultBinder
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- name: PrioritySort
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- name: DefaultPreemption
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- name: VolumeBinding
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- name: NodeResourcesFit
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- name: NodePorts
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- name: InterPodAffinity
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- name: TaintToleration
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disabled:
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- name: "*"
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preFilter:
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disabled:
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- name: VolumeBinding
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- name: InterPodAffinity
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filter:
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disabled:
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- name: VolumeBinding
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- name: InterPodAffinity
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- name: TaintToleration
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score:
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disabled:
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- name: VolumeBinding
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- name: NodeResourcesFit
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`, configKubeconfig)), os.FileMode(0600)); err != nil {
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t.Fatal(err)
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}
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// plugin config
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pluginConfigFilev1beta2 := filepath.Join(tmpDir, "pluginv1beta2.yaml")
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if err := os.WriteFile(pluginConfigFilev1beta2, []byte(fmt.Sprintf(`
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apiVersion: kubescheduler.config.k8s.io/v1beta2
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kind: KubeSchedulerConfiguration
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clientConnection:
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kubeconfig: '%s'
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profiles:
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- plugins:
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preFilter:
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enabled:
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- name: NodeResourcesFit
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- name: NodePorts
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disabled:
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- name: "*"
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filter:
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enabled:
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- name: NodeResourcesFit
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- name: NodePorts
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disabled:
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- name: "*"
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preScore:
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enabled:
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- name: InterPodAffinity
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- name: TaintToleration
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disabled:
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- name: "*"
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score:
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enabled:
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- name: InterPodAffinity
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- name: TaintToleration
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disabled:
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- name: "*"
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`, configKubeconfig)), os.FileMode(0600)); err != nil {
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t.Fatal(err)
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}
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// out-of-tree plugin config v1
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outOfTreePluginConfigFilev1 := filepath.Join(tmpDir, "outOfTreePluginv1.yaml")
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if err := os.WriteFile(outOfTreePluginConfigFilev1, []byte(fmt.Sprintf(`
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apiVersion: kubescheduler.config.k8s.io/v1
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kind: KubeSchedulerConfiguration
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clientConnection:
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kubeconfig: '%s'
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profiles:
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- plugins:
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preFilter:
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enabled:
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- name: Foo
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filter:
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enabled:
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- name: Foo
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`, configKubeconfig)), os.FileMode(0600)); err != nil {
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t.Fatal(err)
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}
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// out-of-tree plugin config v1beta3
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outOfTreePluginConfigFilev1beta3 := filepath.Join(tmpDir, "outOfTreePluginv1beta3.yaml")
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if err := os.WriteFile(outOfTreePluginConfigFilev1beta3, []byte(fmt.Sprintf(`
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apiVersion: kubescheduler.config.k8s.io/v1beta3
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kind: KubeSchedulerConfiguration
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clientConnection:
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kubeconfig: '%s'
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profiles:
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- plugins:
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preFilter:
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enabled:
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- name: Foo
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filter:
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enabled:
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- name: Foo
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`, configKubeconfig)), os.FileMode(0600)); err != nil {
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t.Fatal(err)
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}
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// out-of-tree plugin config v1beta2
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outOfTreePluginConfigFilev1beta2 := filepath.Join(tmpDir, "outOfTreePluginv1beta2.yaml")
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if err := os.WriteFile(outOfTreePluginConfigFilev1beta2, []byte(fmt.Sprintf(`
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apiVersion: kubescheduler.config.k8s.io/v1beta2
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kind: KubeSchedulerConfiguration
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clientConnection:
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kubeconfig: '%s'
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profiles:
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- plugins:
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preFilter:
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enabled:
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- name: Foo
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filter:
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enabled:
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- name: Foo
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`, configKubeconfig)), os.FileMode(0600)); err != nil {
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t.Fatal(err)
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}
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// multiple profiles config
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multiProfilesConfig := filepath.Join(tmpDir, "multi-profiles.yaml")
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if err := os.WriteFile(multiProfilesConfig, []byte(fmt.Sprintf(`
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apiVersion: kubescheduler.config.k8s.io/v1
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kind: KubeSchedulerConfiguration
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clientConnection:
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kubeconfig: '%s'
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profiles:
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- schedulerName: "profile-default-plugins"
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- schedulerName: "profile-disable-all-filter-and-score-plugins"
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plugins:
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preFilter:
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disabled:
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- name: "*"
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filter:
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disabled:
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- name: "*"
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postFilter:
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disabled:
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- name: "*"
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preScore:
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disabled:
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- name: "*"
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score:
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disabled:
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- name: "*"
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`, configKubeconfig)), os.FileMode(0600)); err != nil {
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t.Fatal(err)
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}
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// empty leader-election config
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emptyLeaderElectionConfig := filepath.Join(tmpDir, "empty-leader-election-config.yaml")
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if err := os.WriteFile(emptyLeaderElectionConfig, []byte(fmt.Sprintf(`
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apiVersion: kubescheduler.config.k8s.io/v1
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kind: KubeSchedulerConfiguration
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clientConnection:
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kubeconfig: '%s'
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`, configKubeconfig)), os.FileMode(0600)); err != nil {
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t.Fatal(err)
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}
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// leader-election config
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leaderElectionConfig := filepath.Join(tmpDir, "leader-election-config.yaml")
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if err := os.WriteFile(leaderElectionConfig, []byte(fmt.Sprintf(`
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apiVersion: kubescheduler.config.k8s.io/v1
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kind: KubeSchedulerConfiguration
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clientConnection:
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kubeconfig: '%s'
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leaderElection:
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leaseDuration: 1h
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`, configKubeconfig)), os.FileMode(0600)); err != nil {
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t.Fatal(err)
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}
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testcases := []struct {
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name string
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flags []string
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registryOptions []Option
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restoreFeatures map[featuregate.Feature]bool
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wantPlugins map[string]*config.Plugins
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wantLeaderElection *componentbaseconfig.LeaderElectionConfiguration
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}{
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{
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name: "default config with an alpha feature enabled",
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flags: []string{
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"--kubeconfig", configKubeconfig,
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"--feature-gates=VolumeCapacityPriority=true",
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},
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wantPlugins: map[string]*config.Plugins{
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"default-scheduler": defaults.ExpandedPluginsV1,
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},
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restoreFeatures: map[featuregate.Feature]bool{
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features.VolumeCapacityPriority: false,
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},
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},
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{
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name: "default config with a beta feature disabled",
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flags: []string{
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"--kubeconfig", configKubeconfig,
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"--feature-gates=PodSchedulingReadiness=false",
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},
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wantPlugins: map[string]*config.Plugins{
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"default-scheduler": func() *config.Plugins {
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plugins := defaults.ExpandedPluginsV1.DeepCopy()
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plugins.PreEnqueue = config.PluginSet{}
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return plugins
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}(),
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},
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restoreFeatures: map[featuregate.Feature]bool{
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features.PodSchedulingReadiness: true,
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},
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},
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{
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name: "default config",
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flags: []string{
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"--kubeconfig", configKubeconfig,
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},
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wantPlugins: map[string]*config.Plugins{
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"default-scheduler": defaults.ExpandedPluginsV1,
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},
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},
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{
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name: "component configuration v1beta2",
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flags: []string{
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"--config", pluginConfigFilev1beta2,
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"--kubeconfig", configKubeconfig,
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},
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wantPlugins: map[string]*config.Plugins{
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"default-scheduler": func() *config.Plugins {
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plugins := defaults.PluginsV1beta2.DeepCopy()
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plugins.Filter.Enabled = []config.Plugin{
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{Name: "NodeResourcesFit"},
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{Name: "NodePorts"},
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}
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plugins.PreFilter.Enabled = []config.Plugin{
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{Name: "NodeResourcesFit"},
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{Name: "NodePorts"},
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}
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plugins.PreScore.Enabled = []config.Plugin{
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{Name: "InterPodAffinity"},
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{Name: "TaintToleration"},
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}
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plugins.Score.Enabled = []config.Plugin{
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{Name: "InterPodAffinity", Weight: 1},
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{Name: "TaintToleration", Weight: 1},
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}
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return plugins
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}(),
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},
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},
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{
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name: "component configuration v1beta3",
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flags: []string{
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"--config", pluginConfigFilev1beta3,
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"--kubeconfig", configKubeconfig,
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},
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wantPlugins: map[string]*config.Plugins{
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"default-scheduler": func() *config.Plugins {
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plugins := defaults.ExpandedPluginsV1beta3.DeepCopy()
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plugins.Filter.Enabled = []config.Plugin{
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{Name: "NodeResourcesFit"},
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{Name: "NodePorts"},
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}
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plugins.PreFilter.Enabled = []config.Plugin{
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{Name: "NodeResourcesFit"},
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{Name: "NodePorts"},
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}
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plugins.PreScore.Enabled = []config.Plugin{
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{Name: "NodeResourcesFit"},
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{Name: "InterPodAffinity"},
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{Name: "TaintToleration"},
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}
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plugins.Score.Enabled = []config.Plugin{
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{Name: "InterPodAffinity", Weight: 1},
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{Name: "TaintToleration", Weight: 1},
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}
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return plugins
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}(),
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},
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},
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{
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name: "component configuration v1",
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flags: []string{
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"--config", pluginConfigFilev1,
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"--kubeconfig", configKubeconfig,
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},
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wantPlugins: map[string]*config.Plugins{
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"default-scheduler": func() *config.Plugins {
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plugins := defaults.ExpandedPluginsV1.DeepCopy()
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plugins.Filter.Enabled = []config.Plugin{
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{Name: "NodeResourcesFit"},
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{Name: "NodePorts"},
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}
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plugins.PreFilter.Enabled = []config.Plugin{
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{Name: "NodeResourcesFit"},
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{Name: "NodePorts"},
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}
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plugins.PreScore.Enabled = []config.Plugin{
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{Name: "NodeResourcesFit"},
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{Name: "InterPodAffinity"},
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{Name: "TaintToleration"},
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}
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plugins.Score.Enabled = []config.Plugin{
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{Name: "InterPodAffinity", Weight: 1},
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{Name: "TaintToleration", Weight: 1},
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}
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return plugins
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}(),
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},
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},
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{
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name: "out-of-tree component configuration v1beta2",
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flags: []string{
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"--config", outOfTreePluginConfigFilev1beta2,
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"--kubeconfig", configKubeconfig,
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},
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registryOptions: []Option{WithPlugin("Foo", newFoo)},
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wantPlugins: map[string]*config.Plugins{
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"default-scheduler": func() *config.Plugins {
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plugins := defaults.PluginsV1beta2.DeepCopy()
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plugins.PreFilter.Enabled = append(plugins.PreFilter.Enabled, config.Plugin{Name: "Foo"})
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plugins.Filter.Enabled = append(plugins.Filter.Enabled, config.Plugin{Name: "Foo"})
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return plugins
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}(),
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},
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},
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{
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name: "out-of-tree component configuration v1beta3",
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flags: []string{
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"--config", outOfTreePluginConfigFilev1beta3,
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"--kubeconfig", configKubeconfig,
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},
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registryOptions: []Option{WithPlugin("Foo", newFoo)},
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wantPlugins: map[string]*config.Plugins{
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"default-scheduler": func() *config.Plugins {
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plugins := defaults.ExpandedPluginsV1beta3.DeepCopy()
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plugins.PreFilter.Enabled = append(plugins.PreFilter.Enabled, config.Plugin{Name: "Foo"})
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plugins.Filter.Enabled = append(plugins.Filter.Enabled, config.Plugin{Name: "Foo"})
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return plugins
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}(),
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},
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},
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{
|
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name: "out-of-tree component configuration v1",
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flags: []string{
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"--config", outOfTreePluginConfigFilev1,
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"--kubeconfig", configKubeconfig,
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},
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registryOptions: []Option{WithPlugin("Foo", newFoo)},
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wantPlugins: map[string]*config.Plugins{
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"default-scheduler": func() *config.Plugins {
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plugins := defaults.ExpandedPluginsV1.DeepCopy()
|
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plugins.PreFilter.Enabled = append(plugins.PreFilter.Enabled, config.Plugin{Name: "Foo"})
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plugins.Filter.Enabled = append(plugins.Filter.Enabled, config.Plugin{Name: "Foo"})
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return plugins
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}(),
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},
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},
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{
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name: "leader election CLI args, along with --config arg",
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flags: []string{
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"--leader-elect=false",
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"--leader-elect-lease-duration=2h", // CLI args are favored over the fields in ComponentConfig
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"--lock-object-namespace=default", // deprecated CLI arg will be ignored if --config is specified
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"--config", emptyLeaderElectionConfig,
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},
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wantLeaderElection: &componentbaseconfig.LeaderElectionConfiguration{
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LeaderElect: false, // from CLI args
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LeaseDuration: metav1.Duration{Duration: 2 * time.Hour}, // from CLI args
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RenewDeadline: metav1.Duration{Duration: 10 * time.Second},
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RetryPeriod: metav1.Duration{Duration: 2 * time.Second},
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ResourceLock: "leases",
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ResourceName: v1beta3.SchedulerDefaultLockObjectName,
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ResourceNamespace: v1beta3.SchedulerDefaultLockObjectNamespace,
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},
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},
|
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{
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name: "leader election CLI args, without --config arg",
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flags: []string{
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"--leader-elect=false",
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|
"--leader-elect-lease-duration=2h",
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|
"--lock-object-namespace=default", // deprecated CLI arg is honored if --config is not specified
|
|
"--kubeconfig", configKubeconfig,
|
|
},
|
|
wantLeaderElection: &componentbaseconfig.LeaderElectionConfiguration{
|
|
LeaderElect: false, // from CLI args
|
|
LeaseDuration: metav1.Duration{Duration: 2 * time.Hour}, // from CLI args
|
|
RenewDeadline: metav1.Duration{Duration: 10 * time.Second},
|
|
RetryPeriod: metav1.Duration{Duration: 2 * time.Second},
|
|
ResourceLock: "leases",
|
|
ResourceName: v1beta3.SchedulerDefaultLockObjectName,
|
|
ResourceNamespace: "default", // from deprecated CLI args
|
|
},
|
|
},
|
|
{
|
|
name: "leader election settings specified by ComponentConfig only",
|
|
flags: []string{
|
|
"--config", leaderElectionConfig,
|
|
},
|
|
wantLeaderElection: &componentbaseconfig.LeaderElectionConfiguration{
|
|
LeaderElect: true,
|
|
LeaseDuration: metav1.Duration{Duration: 1 * time.Hour}, // from CC
|
|
RenewDeadline: metav1.Duration{Duration: 10 * time.Second},
|
|
RetryPeriod: metav1.Duration{Duration: 2 * time.Second},
|
|
ResourceLock: "leases",
|
|
ResourceName: v1beta3.SchedulerDefaultLockObjectName,
|
|
ResourceNamespace: v1beta3.SchedulerDefaultLockObjectNamespace,
|
|
},
|
|
},
|
|
{
|
|
name: "leader election settings specified by CLI args and ComponentConfig",
|
|
flags: []string{
|
|
"--leader-elect=true",
|
|
"--leader-elect-renew-deadline=5s",
|
|
"--leader-elect-retry-period=1s",
|
|
"--config", leaderElectionConfig,
|
|
},
|
|
wantLeaderElection: &componentbaseconfig.LeaderElectionConfiguration{
|
|
LeaderElect: true,
|
|
LeaseDuration: metav1.Duration{Duration: 1 * time.Hour}, // from CC
|
|
RenewDeadline: metav1.Duration{Duration: 5 * time.Second}, // from CLI args
|
|
RetryPeriod: metav1.Duration{Duration: 1 * time.Second}, // from CLI args
|
|
ResourceLock: "leases",
|
|
ResourceName: v1beta3.SchedulerDefaultLockObjectName,
|
|
ResourceNamespace: v1beta3.SchedulerDefaultLockObjectNamespace,
|
|
},
|
|
},
|
|
}
|
|
|
|
makeListener := func(t *testing.T) net.Listener {
|
|
t.Helper()
|
|
l, err := net.Listen("tcp", ":0")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
return l
|
|
}
|
|
|
|
for _, tc := range testcases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
for k, v := range tc.restoreFeatures {
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, feature.DefaultFeatureGate, k, v)()
|
|
}
|
|
|
|
fs := pflag.NewFlagSet("test", pflag.PanicOnError)
|
|
opts := options.NewOptions()
|
|
|
|
// use listeners instead of static ports so parallel test runs don't conflict
|
|
opts.SecureServing.Listener = makeListener(t)
|
|
defer opts.SecureServing.Listener.Close()
|
|
|
|
nfs := opts.Flags
|
|
for _, f := range nfs.FlagSets {
|
|
fs.AddFlagSet(f)
|
|
}
|
|
if err := fs.Parse(tc.flags); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// use listeners instead of static ports so parallel test runs don't conflict
|
|
opts.SecureServing.Listener = makeListener(t)
|
|
defer opts.SecureServing.Listener.Close()
|
|
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
_, sched, err := Setup(ctx, opts, tc.registryOptions...)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if tc.wantPlugins != nil {
|
|
gotPlugins := make(map[string]*config.Plugins)
|
|
for n, p := range sched.Profiles {
|
|
gotPlugins[n] = p.ListPlugins()
|
|
}
|
|
|
|
if diff := cmp.Diff(tc.wantPlugins, gotPlugins); diff != "" {
|
|
t.Errorf("Unexpected plugins diff (-want, +got): %s", diff)
|
|
}
|
|
}
|
|
|
|
if tc.wantLeaderElection != nil {
|
|
gotLeaderElection := opts.ComponentConfig.LeaderElection
|
|
if diff := cmp.Diff(*tc.wantLeaderElection, gotLeaderElection); diff != "" {
|
|
t.Errorf("Unexpected leaderElection diff (-want, +got): %s", diff)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
// Simulates an out-of-tree plugin.
|
|
type foo struct{}
|
|
|
|
var _ framework.PreFilterPlugin = &foo{}
|
|
var _ framework.FilterPlugin = &foo{}
|
|
|
|
func (*foo) Name() string {
|
|
return "Foo"
|
|
}
|
|
|
|
func newFoo(_ runtime.Object, _ framework.Handle) (framework.Plugin, error) {
|
|
return &foo{}, nil
|
|
}
|
|
|
|
func (*foo) PreFilter(_ context.Context, _ *framework.CycleState, _ *v1.Pod) (*framework.PreFilterResult, *framework.Status) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (*foo) PreFilterExtensions() framework.PreFilterExtensions {
|
|
return nil
|
|
}
|
|
|
|
func (*foo) Filter(_ context.Context, _ *framework.CycleState, _ *v1.Pod, nodeInfo *framework.NodeInfo) *framework.Status {
|
|
return nil
|
|
}
|