33e6a476ba
Add PriorityClass to pkg/registry Add PriorityClass to pkg/master/master.go Add PriorityClass to import_know_versions.go Update linted packages minor fix
110 lines
4.0 KiB
Go
110 lines
4.0 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package priorityclass
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/fields"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/validation/field"
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genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
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"k8s.io/apiserver/pkg/registry/generic"
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apistorage "k8s.io/apiserver/pkg/storage"
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"k8s.io/apiserver/pkg/storage/names"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/apis/scheduling"
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"k8s.io/kubernetes/pkg/apis/scheduling/validation"
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)
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// priorityClassStrategy implements verification logic for PriorityClass.
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type priorityClassStrategy struct {
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runtime.ObjectTyper
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names.NameGenerator
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}
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// Strategy is the default logic that applies when creating and updating PriorityClass objects.
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var Strategy = priorityClassStrategy{api.Scheme, names.SimpleNameGenerator}
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// NamespaceScoped returns true because all PriorityClasses are global.
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func (priorityClassStrategy) NamespaceScoped() bool {
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return false
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}
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// PrepareForCreate clears the status of a PriorityClass before creation.
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func (priorityClassStrategy) PrepareForCreate(ctx genericapirequest.Context, obj runtime.Object) {
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pc := obj.(*scheduling.PriorityClass)
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pc.Generation = 1
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}
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// PrepareForUpdate clears fields that are not allowed to be set by end users on update.
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func (priorityClassStrategy) PrepareForUpdate(ctx genericapirequest.Context, obj, old runtime.Object) {
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_ = obj.(*scheduling.PriorityClass)
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_ = old.(*scheduling.PriorityClass)
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}
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// Validate validates a new PriorityClass.
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func (priorityClassStrategy) Validate(ctx genericapirequest.Context, obj runtime.Object) field.ErrorList {
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pc := obj.(*scheduling.PriorityClass)
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return validation.ValidatePriorityClass(pc)
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}
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// Canonicalize normalizes the object after validation.
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func (priorityClassStrategy) Canonicalize(obj runtime.Object) {}
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// AllowCreateOnUpdate is false for PriorityClass; this means POST is needed to create one.
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func (priorityClassStrategy) AllowCreateOnUpdate() bool {
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return false
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}
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// ValidateUpdate is the default update validation for an end user.
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func (priorityClassStrategy) ValidateUpdate(ctx genericapirequest.Context, obj, old runtime.Object) field.ErrorList {
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validationErrorList := validation.ValidatePriorityClass(obj.(*scheduling.PriorityClass))
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updateErrorList := validation.ValidatePriorityClassUpdate(obj.(*scheduling.PriorityClass), old.(*scheduling.PriorityClass))
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return append(validationErrorList, updateErrorList...)
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}
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// AllowUnconditionalUpdate is the default update policy for PriorityClass objects.
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func (priorityClassStrategy) AllowUnconditionalUpdate() bool {
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return true
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}
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// SelectableFields returns a field set that represents the object.
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func SelectableFields(pc *scheduling.PriorityClass) fields.Set {
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return generic.ObjectMetaFieldsSet(&pc.ObjectMeta, false)
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}
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// GetAttrs returns labels and fields of a given object for filtering purposes.
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func GetAttrs(obj runtime.Object) (labels.Set, fields.Set, bool, error) {
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pc, ok := obj.(*scheduling.PriorityClass)
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if !ok {
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return nil, nil, false, fmt.Errorf("given object is not a PriorityClass")
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}
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return labels.Set(pc.ObjectMeta.Labels), SelectableFields(pc), pc.Initializers != nil, nil
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}
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// Matcher is the filter used by the generic etcd backend to watch events
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// from etcd to clients of the apiserver only interested in specific labels/fields.
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func Matcher(label labels.Selector, field fields.Selector) apistorage.SelectionPredicate {
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return apistorage.SelectionPredicate{
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Label: label,
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Field: field,
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GetAttrs: GetAttrs,
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}
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}
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