/
strategy.go
132 lines (107 loc) · 4.13 KB
/
strategy.go
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// Copyright 2023 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package internalsecret
import (
"context"
"fmt"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/validation/field"
"k8s.io/apiserver/pkg/registry/generic"
"k8s.io/apiserver/pkg/registry/rest"
"k8s.io/apiserver/pkg/storage"
"k8s.io/apiserver/pkg/storage/names"
"github.com/gardener/gardener/pkg/api"
"github.com/gardener/gardener/pkg/apis/core"
"github.com/gardener/gardener/pkg/apis/core/validation"
)
// strategy implements behavior for InternalSecret objects
type strategy struct {
runtime.ObjectTyper
names.NameGenerator
}
// Strategy is the default logic that applies when creating and updating InternalSecret
// objects via the REST API.
var Strategy = strategy{api.Scheme, names.SimpleNameGenerator}
var _ = rest.RESTCreateStrategy(Strategy)
var _ = rest.RESTUpdateStrategy(Strategy)
func (strategy) NamespaceScoped() bool {
return true
}
func (strategy) PrepareForCreate(_ context.Context, _ runtime.Object) {
}
func (strategy) Validate(_ context.Context, obj runtime.Object) field.ErrorList {
return validation.ValidateInternalSecret(obj.(*core.InternalSecret))
}
// WarningsOnCreate returns warnings for the creation of the given object.
func (strategy) WarningsOnCreate(_ context.Context, _ runtime.Object) []string { return nil }
func (strategy) Canonicalize(_ runtime.Object) {
}
func (strategy) AllowCreateOnUpdate() bool {
return false
}
func (strategy) PrepareForUpdate(_ context.Context, obj, old runtime.Object) {
newInternalSecret := obj.(*core.InternalSecret)
oldInternalSecret := old.(*core.InternalSecret)
// this is weird, but consistent with what the validatedUpdate function used to do.
if len(newInternalSecret.Type) == 0 {
newInternalSecret.Type = oldInternalSecret.Type
}
}
func (strategy) ValidateUpdate(_ context.Context, obj, old runtime.Object) field.ErrorList {
return validation.ValidateInternalSecretUpdate(obj.(*core.InternalSecret), old.(*core.InternalSecret))
}
// WarningsOnUpdate returns warnings for the given update.
func (strategy) WarningsOnUpdate(_ context.Context, _, _ runtime.Object) []string {
return nil
}
func (strategy) AllowUnconditionalUpdate() bool {
return true
}
// GetAttrs returns labels and fields of a given object for filtering purposes.
func GetAttrs(obj runtime.Object) (labels.Set, fields.Set, error) {
secret, ok := obj.(*core.InternalSecret)
if !ok {
return nil, nil, fmt.Errorf("not an InternalSecret")
}
return labels.Set(secret.Labels), ToSelectableFields(secret), nil
}
// MatchInternalSecret returns a generic matcher for a given label and field selector.
func MatchInternalSecret(label labels.Selector, field fields.Selector) storage.SelectionPredicate {
return storage.SelectionPredicate{
Label: label,
Field: field,
GetAttrs: GetAttrs,
IndexFields: []string{core.InternalSecretType},
}
}
// TypeTriggerFunc returns type of given object.
func TypeTriggerFunc(obj runtime.Object) string {
secret, ok := obj.(*core.InternalSecret)
if !ok {
return ""
}
return getType(secret)
}
// ToSelectableFields returns a field set that represents the object
func ToSelectableFields(obj *core.InternalSecret) fields.Set {
secretSpecificFieldsSet := fields.Set{
"type": getType(obj),
}
return generic.AddObjectMetaFieldsSet(secretSpecificFieldsSet, &obj.ObjectMeta, true)
}
func getType(secret *core.InternalSecret) string {
return string(secret.Type)
}