0aad9d30e3
Automatic merge from submit-queue (batch tested with PRs 46076, 43879, 44897, 46556, 46654) Local storage plugin **What this PR does / why we need it**: Volume plugin implementation for local persistent volumes. Scheduler predicate will direct already-bound PVCs to the node that the local PV is at. PVC binding still happens independently. **Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: Part of #43640 **Release note**: ``` Alpha feature: Local volume plugin allows local directories to be created and consumed as a Persistent Volume. These volumes have node affinity and pods will only be scheduled to the node that the volume is at. ```
447 lines
19 KiB
Go
447 lines
19 KiB
Go
/*
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Copyright 2015 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 defaults
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import (
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"fmt"
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"reflect"
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"testing"
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"net/http/httptest"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/sets"
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restclient "k8s.io/client-go/rest"
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utiltesting "k8s.io/client-go/util/testing"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
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informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/externalversions"
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schedulerapi "k8s.io/kubernetes/plugin/pkg/scheduler/api"
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latestschedulerapi "k8s.io/kubernetes/plugin/pkg/scheduler/api/latest"
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"k8s.io/kubernetes/plugin/pkg/scheduler/factory"
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)
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func TestCompatibility_v1_Scheduler(t *testing.T) {
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// Add serialized versions of scheduler config that exercise available options to ensure compatibility between releases
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schedulerFiles := map[string]struct {
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JSON string
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ExpectedPolicy schedulerapi.Policy
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}{
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// Do not change this JSON after the corresponding release has been tagged.
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// A failure indicates backwards compatibility with the specified release was broken.
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"1.0": {
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JSON: `{
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"kind": "Policy",
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"apiVersion": "v1",
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"predicates": [
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{"name": "MatchNodeSelector"},
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{"name": "PodFitsResources"},
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{"name": "PodFitsPorts"},
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{"name": "NoDiskConflict"},
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{"name": "TestServiceAffinity", "argument": {"serviceAffinity" : {"labels" : ["region"]}}},
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{"name": "TestLabelsPresence", "argument": {"labelsPresence" : {"labels" : ["foo"], "presence":true}}}
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],"priorities": [
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{"name": "LeastRequestedPriority", "weight": 1},
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{"name": "ServiceSpreadingPriority", "weight": 2},
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{"name": "TestServiceAntiAffinity", "weight": 3, "argument": {"serviceAntiAffinity": {"label": "zone"}}},
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{"name": "TestLabelPreference", "weight": 4, "argument": {"labelPreference": {"label": "bar", "presence":true}}}
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]
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}`,
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ExpectedPolicy: schedulerapi.Policy{
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Predicates: []schedulerapi.PredicatePolicy{
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{Name: "MatchNodeSelector"},
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{Name: "PodFitsResources"},
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{Name: "PodFitsPorts"},
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{Name: "NoDiskConflict"},
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{Name: "TestServiceAffinity", Argument: &schedulerapi.PredicateArgument{ServiceAffinity: &schedulerapi.ServiceAffinity{Labels: []string{"region"}}}},
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{Name: "TestLabelsPresence", Argument: &schedulerapi.PredicateArgument{LabelsPresence: &schedulerapi.LabelsPresence{Labels: []string{"foo"}, Presence: true}}},
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},
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Priorities: []schedulerapi.PriorityPolicy{
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{Name: "LeastRequestedPriority", Weight: 1},
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{Name: "ServiceSpreadingPriority", Weight: 2},
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{Name: "TestServiceAntiAffinity", Weight: 3, Argument: &schedulerapi.PriorityArgument{ServiceAntiAffinity: &schedulerapi.ServiceAntiAffinity{Label: "zone"}}},
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{Name: "TestLabelPreference", Weight: 4, Argument: &schedulerapi.PriorityArgument{LabelPreference: &schedulerapi.LabelPreference{Label: "bar", Presence: true}}},
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},
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},
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},
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// Do not change this JSON after the corresponding release has been tagged.
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// A failure indicates backwards compatibility with the specified release was broken.
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"1.1": {
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JSON: `{
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"kind": "Policy",
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"apiVersion": "v1",
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"predicates": [
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{"name": "MatchNodeSelector"},
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{"name": "PodFitsHostPorts"},
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{"name": "PodFitsResources"},
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{"name": "NoDiskConflict"},
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{"name": "HostName"},
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{"name": "TestServiceAffinity", "argument": {"serviceAffinity" : {"labels" : ["region"]}}},
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{"name": "TestLabelsPresence", "argument": {"labelsPresence" : {"labels" : ["foo"], "presence":true}}}
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],"priorities": [
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{"name": "EqualPriority", "weight": 2},
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{"name": "LeastRequestedPriority", "weight": 2},
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{"name": "BalancedResourceAllocation", "weight": 2},
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{"name": "SelectorSpreadPriority", "weight": 2},
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{"name": "TestServiceAntiAffinity", "weight": 3, "argument": {"serviceAntiAffinity": {"label": "zone"}}},
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{"name": "TestLabelPreference", "weight": 4, "argument": {"labelPreference": {"label": "bar", "presence":true}}}
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]
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}`,
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ExpectedPolicy: schedulerapi.Policy{
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Predicates: []schedulerapi.PredicatePolicy{
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{Name: "MatchNodeSelector"},
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{Name: "PodFitsHostPorts"},
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{Name: "PodFitsResources"},
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{Name: "NoDiskConflict"},
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{Name: "HostName"},
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{Name: "TestServiceAffinity", Argument: &schedulerapi.PredicateArgument{ServiceAffinity: &schedulerapi.ServiceAffinity{Labels: []string{"region"}}}},
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{Name: "TestLabelsPresence", Argument: &schedulerapi.PredicateArgument{LabelsPresence: &schedulerapi.LabelsPresence{Labels: []string{"foo"}, Presence: true}}},
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},
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Priorities: []schedulerapi.PriorityPolicy{
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{Name: "EqualPriority", Weight: 2},
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{Name: "LeastRequestedPriority", Weight: 2},
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{Name: "BalancedResourceAllocation", Weight: 2},
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{Name: "SelectorSpreadPriority", Weight: 2},
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{Name: "TestServiceAntiAffinity", Weight: 3, Argument: &schedulerapi.PriorityArgument{ServiceAntiAffinity: &schedulerapi.ServiceAntiAffinity{Label: "zone"}}},
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{Name: "TestLabelPreference", Weight: 4, Argument: &schedulerapi.PriorityArgument{LabelPreference: &schedulerapi.LabelPreference{Label: "bar", Presence: true}}},
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},
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},
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},
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// Do not change this JSON after the corresponding release has been tagged.
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// A failure indicates backwards compatibility with the specified release was broken.
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"1.2": {
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JSON: `{
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"kind": "Policy",
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"apiVersion": "v1",
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"predicates": [
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{"name": "MatchNodeSelector"},
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{"name": "PodFitsResources"},
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{"name": "PodFitsHostPorts"},
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{"name": "HostName"},
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{"name": "NoDiskConflict"},
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{"name": "NoVolumeZoneConflict"},
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{"name": "MaxEBSVolumeCount"},
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{"name": "MaxGCEPDVolumeCount"},
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{"name": "MaxAzureDiskVolumeCount"},
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{"name": "TestServiceAffinity", "argument": {"serviceAffinity" : {"labels" : ["region"]}}},
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{"name": "TestLabelsPresence", "argument": {"labelsPresence" : {"labels" : ["foo"], "presence":true}}}
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],"priorities": [
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{"name": "EqualPriority", "weight": 2},
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{"name": "NodeAffinityPriority", "weight": 2},
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{"name": "ImageLocalityPriority", "weight": 2},
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{"name": "LeastRequestedPriority", "weight": 2},
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{"name": "BalancedResourceAllocation", "weight": 2},
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{"name": "SelectorSpreadPriority", "weight": 2},
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{"name": "TestServiceAntiAffinity", "weight": 3, "argument": {"serviceAntiAffinity": {"label": "zone"}}},
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{"name": "TestLabelPreference", "weight": 4, "argument": {"labelPreference": {"label": "bar", "presence":true}}}
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]
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}`,
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ExpectedPolicy: schedulerapi.Policy{
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Predicates: []schedulerapi.PredicatePolicy{
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{Name: "MatchNodeSelector"},
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{Name: "PodFitsResources"},
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{Name: "PodFitsHostPorts"},
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{Name: "HostName"},
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{Name: "NoDiskConflict"},
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{Name: "NoVolumeZoneConflict"},
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{Name: "MaxEBSVolumeCount"},
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{Name: "MaxGCEPDVolumeCount"},
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{Name: "MaxAzureDiskVolumeCount"},
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{Name: "TestServiceAffinity", Argument: &schedulerapi.PredicateArgument{ServiceAffinity: &schedulerapi.ServiceAffinity{Labels: []string{"region"}}}},
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{Name: "TestLabelsPresence", Argument: &schedulerapi.PredicateArgument{LabelsPresence: &schedulerapi.LabelsPresence{Labels: []string{"foo"}, Presence: true}}},
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},
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Priorities: []schedulerapi.PriorityPolicy{
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{Name: "EqualPriority", Weight: 2},
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{Name: "NodeAffinityPriority", Weight: 2},
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{Name: "ImageLocalityPriority", Weight: 2},
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{Name: "LeastRequestedPriority", Weight: 2},
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{Name: "BalancedResourceAllocation", Weight: 2},
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{Name: "SelectorSpreadPriority", Weight: 2},
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{Name: "TestServiceAntiAffinity", Weight: 3, Argument: &schedulerapi.PriorityArgument{ServiceAntiAffinity: &schedulerapi.ServiceAntiAffinity{Label: "zone"}}},
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{Name: "TestLabelPreference", Weight: 4, Argument: &schedulerapi.PriorityArgument{LabelPreference: &schedulerapi.LabelPreference{Label: "bar", Presence: true}}},
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},
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},
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},
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// Do not change this JSON after the corresponding release has been tagged.
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// A failure indicates backwards compatibility with the specified release was broken.
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"1.3": {
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JSON: `{
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"kind": "Policy",
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"apiVersion": "v1",
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"predicates": [
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{"name": "MatchNodeSelector"},
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{"name": "PodFitsResources"},
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{"name": "PodFitsHostPorts"},
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{"name": "HostName"},
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{"name": "NoDiskConflict"},
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{"name": "NoVolumeZoneConflict"},
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{"name": "PodToleratesNodeTaints"},
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{"name": "CheckNodeMemoryPressure"},
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{"name": "MaxEBSVolumeCount"},
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{"name": "MaxGCEPDVolumeCount"},
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{"name": "MaxAzureDiskVolumeCount"},
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{"name": "MatchInterPodAffinity"},
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{"name": "GeneralPredicates"},
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{"name": "TestServiceAffinity", "argument": {"serviceAffinity" : {"labels" : ["region"]}}},
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{"name": "TestLabelsPresence", "argument": {"labelsPresence" : {"labels" : ["foo"], "presence":true}}}
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],"priorities": [
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{"name": "EqualPriority", "weight": 2},
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{"name": "ImageLocalityPriority", "weight": 2},
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{"name": "LeastRequestedPriority", "weight": 2},
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{"name": "BalancedResourceAllocation", "weight": 2},
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{"name": "SelectorSpreadPriority", "weight": 2},
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{"name": "NodeAffinityPriority", "weight": 2},
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{"name": "TaintTolerationPriority", "weight": 2},
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{"name": "InterPodAffinityPriority", "weight": 2}
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]
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}`,
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ExpectedPolicy: schedulerapi.Policy{
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Predicates: []schedulerapi.PredicatePolicy{
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{Name: "MatchNodeSelector"},
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{Name: "PodFitsResources"},
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{Name: "PodFitsHostPorts"},
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{Name: "HostName"},
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{Name: "NoDiskConflict"},
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{Name: "NoVolumeZoneConflict"},
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{Name: "PodToleratesNodeTaints"},
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{Name: "CheckNodeMemoryPressure"},
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{Name: "MaxEBSVolumeCount"},
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{Name: "MaxGCEPDVolumeCount"},
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{Name: "MaxAzureDiskVolumeCount"},
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{Name: "MatchInterPodAffinity"},
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{Name: "GeneralPredicates"},
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{Name: "TestServiceAffinity", Argument: &schedulerapi.PredicateArgument{ServiceAffinity: &schedulerapi.ServiceAffinity{Labels: []string{"region"}}}},
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{Name: "TestLabelsPresence", Argument: &schedulerapi.PredicateArgument{LabelsPresence: &schedulerapi.LabelsPresence{Labels: []string{"foo"}, Presence: true}}},
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},
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Priorities: []schedulerapi.PriorityPolicy{
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{Name: "EqualPriority", Weight: 2},
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{Name: "ImageLocalityPriority", Weight: 2},
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{Name: "LeastRequestedPriority", Weight: 2},
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{Name: "BalancedResourceAllocation", Weight: 2},
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{Name: "SelectorSpreadPriority", Weight: 2},
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{Name: "NodeAffinityPriority", Weight: 2},
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{Name: "TaintTolerationPriority", Weight: 2},
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{Name: "InterPodAffinityPriority", Weight: 2},
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},
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},
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},
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// Do not change this JSON after the corresponding release has been tagged.
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// A failure indicates backwards compatibility with the specified release was broken.
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"1.4": {
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JSON: `{
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"kind": "Policy",
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"apiVersion": "v1",
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"predicates": [
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{"name": "MatchNodeSelector"},
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{"name": "PodFitsResources"},
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{"name": "PodFitsHostPorts"},
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{"name": "HostName"},
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{"name": "NoDiskConflict"},
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{"name": "NoVolumeZoneConflict"},
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{"name": "PodToleratesNodeTaints"},
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{"name": "CheckNodeMemoryPressure"},
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{"name": "CheckNodeDiskPressure"},
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{"name": "MaxEBSVolumeCount"},
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{"name": "MaxGCEPDVolumeCount"},
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{"name": "MaxAzureDiskVolumeCount"},
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{"name": "MatchInterPodAffinity"},
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{"name": "GeneralPredicates"},
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{"name": "TestServiceAffinity", "argument": {"serviceAffinity" : {"labels" : ["region"]}}},
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{"name": "TestLabelsPresence", "argument": {"labelsPresence" : {"labels" : ["foo"], "presence":true}}}
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],"priorities": [
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{"name": "EqualPriority", "weight": 2},
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{"name": "ImageLocalityPriority", "weight": 2},
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{"name": "LeastRequestedPriority", "weight": 2},
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{"name": "BalancedResourceAllocation", "weight": 2},
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{"name": "SelectorSpreadPriority", "weight": 2},
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{"name": "NodePreferAvoidPodsPriority", "weight": 2},
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{"name": "NodeAffinityPriority", "weight": 2},
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{"name": "TaintTolerationPriority", "weight": 2},
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{"name": "InterPodAffinityPriority", "weight": 2},
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{"name": "MostRequestedPriority", "weight": 2}
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]
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}`,
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ExpectedPolicy: schedulerapi.Policy{
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Predicates: []schedulerapi.PredicatePolicy{
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{Name: "MatchNodeSelector"},
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{Name: "PodFitsResources"},
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{Name: "PodFitsHostPorts"},
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{Name: "HostName"},
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{Name: "NoDiskConflict"},
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{Name: "NoVolumeZoneConflict"},
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{Name: "PodToleratesNodeTaints"},
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{Name: "CheckNodeMemoryPressure"},
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{Name: "CheckNodeDiskPressure"},
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{Name: "MaxEBSVolumeCount"},
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{Name: "MaxGCEPDVolumeCount"},
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{Name: "MaxAzureDiskVolumeCount"},
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{Name: "MatchInterPodAffinity"},
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{Name: "GeneralPredicates"},
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{Name: "TestServiceAffinity", Argument: &schedulerapi.PredicateArgument{ServiceAffinity: &schedulerapi.ServiceAffinity{Labels: []string{"region"}}}},
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{Name: "TestLabelsPresence", Argument: &schedulerapi.PredicateArgument{LabelsPresence: &schedulerapi.LabelsPresence{Labels: []string{"foo"}, Presence: true}}},
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},
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Priorities: []schedulerapi.PriorityPolicy{
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{Name: "EqualPriority", Weight: 2},
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{Name: "ImageLocalityPriority", Weight: 2},
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{Name: "LeastRequestedPriority", Weight: 2},
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{Name: "BalancedResourceAllocation", Weight: 2},
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{Name: "SelectorSpreadPriority", Weight: 2},
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{Name: "NodePreferAvoidPodsPriority", Weight: 2},
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{Name: "NodeAffinityPriority", Weight: 2},
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{Name: "TaintTolerationPriority", Weight: 2},
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{Name: "InterPodAffinityPriority", Weight: 2},
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{Name: "MostRequestedPriority", Weight: 2},
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},
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},
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},
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// Do not change this JSON after the corresponding release has been tagged.
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// A failure indicates backwards compatibility with the specified release was broken.
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"1.7": {
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JSON: `{
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"kind": "Policy",
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"apiVersion": "v1",
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"predicates": [
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{"name": "MatchNodeSelector"},
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{"name": "PodFitsResources"},
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{"name": "PodFitsHostPorts"},
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{"name": "HostName"},
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{"name": "NoDiskConflict"},
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{"name": "NoVolumeZoneConflict"},
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{"name": "PodToleratesNodeTaints"},
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{"name": "CheckNodeMemoryPressure"},
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{"name": "CheckNodeDiskPressure"},
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{"name": "MaxEBSVolumeCount"},
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{"name": "MaxGCEPDVolumeCount"},
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{"name": "MaxAzureDiskVolumeCount"},
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{"name": "MatchInterPodAffinity"},
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{"name": "GeneralPredicates"},
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{"name": "TestServiceAffinity", "argument": {"serviceAffinity" : {"labels" : ["region"]}}},
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{"name": "TestLabelsPresence", "argument": {"labelsPresence" : {"labels" : ["foo"], "presence":true}}},
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{"name": "NoVolumeNodeConflict"}
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],"priorities": [
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{"name": "EqualPriority", "weight": 2},
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{"name": "ImageLocalityPriority", "weight": 2},
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{"name": "LeastRequestedPriority", "weight": 2},
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{"name": "BalancedResourceAllocation", "weight": 2},
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{"name": "SelectorSpreadPriority", "weight": 2},
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{"name": "NodePreferAvoidPodsPriority", "weight": 2},
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{"name": "NodeAffinityPriority", "weight": 2},
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{"name": "TaintTolerationPriority", "weight": 2},
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{"name": "InterPodAffinityPriority", "weight": 2},
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{"name": "MostRequestedPriority", "weight": 2}
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]
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}`,
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ExpectedPolicy: schedulerapi.Policy{
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Predicates: []schedulerapi.PredicatePolicy{
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{Name: "MatchNodeSelector"},
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{Name: "PodFitsResources"},
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{Name: "PodFitsHostPorts"},
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{Name: "HostName"},
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{Name: "NoDiskConflict"},
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{Name: "NoVolumeZoneConflict"},
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{Name: "PodToleratesNodeTaints"},
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{Name: "CheckNodeMemoryPressure"},
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{Name: "CheckNodeDiskPressure"},
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{Name: "MaxEBSVolumeCount"},
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{Name: "MaxGCEPDVolumeCount"},
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{Name: "MaxAzureDiskVolumeCount"},
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{Name: "MatchInterPodAffinity"},
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{Name: "GeneralPredicates"},
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{Name: "TestServiceAffinity", Argument: &schedulerapi.PredicateArgument{ServiceAffinity: &schedulerapi.ServiceAffinity{Labels: []string{"region"}}}},
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{Name: "TestLabelsPresence", Argument: &schedulerapi.PredicateArgument{LabelsPresence: &schedulerapi.LabelsPresence{Labels: []string{"foo"}, Presence: true}}},
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{Name: "NoVolumeNodeConflict"},
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},
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Priorities: []schedulerapi.PriorityPolicy{
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{Name: "EqualPriority", Weight: 2},
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{Name: "ImageLocalityPriority", Weight: 2},
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{Name: "LeastRequestedPriority", Weight: 2},
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{Name: "BalancedResourceAllocation", Weight: 2},
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{Name: "SelectorSpreadPriority", Weight: 2},
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{Name: "NodePreferAvoidPodsPriority", Weight: 2},
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{Name: "NodeAffinityPriority", Weight: 2},
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{Name: "TaintTolerationPriority", Weight: 2},
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{Name: "InterPodAffinityPriority", Weight: 2},
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{Name: "MostRequestedPriority", Weight: 2},
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},
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},
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},
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}
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registeredPredicates := sets.NewString(factory.ListRegisteredFitPredicates()...)
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registeredPriorities := sets.NewString(factory.ListRegisteredPriorityFunctions()...)
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seenPredicates := sets.NewString()
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seenPriorities := sets.NewString()
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for v, tc := range schedulerFiles {
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fmt.Printf("%s: Testing scheduler config\n", v)
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policy := schedulerapi.Policy{}
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if err := runtime.DecodeInto(latestschedulerapi.Codec, []byte(tc.JSON), &policy); err != nil {
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t.Errorf("%s: Error decoding: %v", v, err)
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continue
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}
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for _, predicate := range policy.Predicates {
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seenPredicates.Insert(predicate.Name)
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}
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for _, priority := range policy.Priorities {
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seenPriorities.Insert(priority.Name)
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}
|
|
if !reflect.DeepEqual(policy, tc.ExpectedPolicy) {
|
|
t.Errorf("%s: Expected:\n\t%#v\nGot:\n\t%#v", v, tc.ExpectedPolicy, policy)
|
|
}
|
|
|
|
handler := utiltesting.FakeHandler{
|
|
StatusCode: 500,
|
|
ResponseBody: "",
|
|
T: t,
|
|
}
|
|
server := httptest.NewServer(&handler)
|
|
defer server.Close()
|
|
client := clientset.NewForConfigOrDie(&restclient.Config{Host: server.URL, ContentConfig: restclient.ContentConfig{GroupVersion: &api.Registry.GroupOrDie(v1.GroupName).GroupVersion}})
|
|
informerFactory := informers.NewSharedInformerFactory(client, 0)
|
|
|
|
if _, err := factory.NewConfigFactory(
|
|
"some-scheduler-name",
|
|
client,
|
|
informerFactory.Core().V1().Nodes(),
|
|
informerFactory.Core().V1().Pods(),
|
|
informerFactory.Core().V1().PersistentVolumes(),
|
|
informerFactory.Core().V1().PersistentVolumeClaims(),
|
|
informerFactory.Core().V1().ReplicationControllers(),
|
|
informerFactory.Extensions().V1beta1().ReplicaSets(),
|
|
informerFactory.Apps().V1beta1().StatefulSets(),
|
|
informerFactory.Core().V1().Services(),
|
|
v1.DefaultHardPodAffinitySymmetricWeight,
|
|
).CreateFromConfig(policy); err != nil {
|
|
t.Errorf("%s: Error constructing: %v", v, err)
|
|
continue
|
|
}
|
|
}
|
|
|
|
if !seenPredicates.HasAll(registeredPredicates.List()...) {
|
|
t.Errorf("Registered predicates are missing from compatibility test (add to test stanza for version currently in development): %#v", registeredPredicates.Difference(seenPredicates).List())
|
|
}
|
|
if !seenPriorities.HasAll(registeredPriorities.List()...) {
|
|
t.Errorf("Registered priorities are missing from compatibility test (add to test stanza for version currently in development): %#v", registeredPriorities.Difference(seenPriorities).List())
|
|
}
|
|
}
|