87 lines
2.9 KiB
Go
87 lines
2.9 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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 horizontalpodautoscaler
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import (
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"fmt"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/expapi"
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"k8s.io/kubernetes/pkg/expapi/validation"
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"k8s.io/kubernetes/pkg/fields"
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"k8s.io/kubernetes/pkg/labels"
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"k8s.io/kubernetes/pkg/registry/generic"
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"k8s.io/kubernetes/pkg/runtime"
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errs "k8s.io/kubernetes/pkg/util/fielderrors"
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)
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// autoscalerStrategy implements behavior for HorizontalPodAutoscalers
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type autoscalerStrategy struct {
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runtime.ObjectTyper
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api.NameGenerator
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}
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// Strategy is the default logic that applies when creating and updating HorizontalPodAutoscaler
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// objects via the REST API.
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var Strategy = autoscalerStrategy{api.Scheme, api.SimpleNameGenerator}
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// NamespaceScoped is true for autoscaler.
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func (autoscalerStrategy) NamespaceScoped() bool {
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return true
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}
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// PrepareForCreate clears fields that are not allowed to be set by end users on creation.
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func (autoscalerStrategy) PrepareForCreate(obj runtime.Object) {
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_ = obj.(*expapi.HorizontalPodAutoscaler)
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}
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// Validate validates a new autoscaler.
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func (autoscalerStrategy) Validate(ctx api.Context, obj runtime.Object) errs.ValidationErrorList {
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autoscaler := obj.(*expapi.HorizontalPodAutoscaler)
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return validation.ValidateHorizontalPodAutoscaler(autoscaler)
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}
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// AllowCreateOnUpdate is false for autoscalers.
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func (autoscalerStrategy) AllowCreateOnUpdate() bool {
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return false
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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 (autoscalerStrategy) PrepareForUpdate(obj, old runtime.Object) {
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_ = obj.(*expapi.HorizontalPodAutoscaler)
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}
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// ValidateUpdate is the default update validation for an end user.
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func (autoscalerStrategy) ValidateUpdate(ctx api.Context, obj, old runtime.Object) errs.ValidationErrorList {
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return validation.ValidateHorizontalPodAutoscalerUpdate(obj.(*expapi.HorizontalPodAutoscaler), old.(*expapi.HorizontalPodAutoscaler))
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}
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func (autoscalerStrategy) AllowUnconditionalUpdate() bool {
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return true
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}
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// MatchAutoscaler returns a generic matcher for a given label and field selector.
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func MatchAutoscaler(label labels.Selector, field fields.Selector) generic.Matcher {
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return generic.MatcherFunc(func(obj runtime.Object) (bool, error) {
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autoscaler, ok := obj.(*expapi.HorizontalPodAutoscaler)
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if !ok {
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return false, fmt.Errorf("not a horizontal pod autoscaler")
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}
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return label.Matches(labels.Set(autoscaler.Labels)), nil
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})
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}
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