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mutator.go
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mutator.go
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// Copyright 2019 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 webhook
import (
"context"
"sigs.k8s.io/controller-runtime/pkg/client"
)
// Mutator validates and if needed mutates objects.
type Mutator interface {
// Mutate validates and if needed mutates the given object.
// "old" is optional and it must always be checked for nil.
Mutate(ctx context.Context, new, old client.Object) error
}
// MutatorWithShootClient validates and if needed mutates objects. It needs the shoot client.
type MutatorWithShootClient interface {
// Mutate validates and if needed mutates the given object.
// "old" is optional and it must always be checked for nil.
Mutate(ctx context.Context, new, old client.Object, shootClient client.Client) error
}
type mutationWrapper struct {
Mutator
}
func (d *mutationWrapper) do(ctx context.Context, new, old client.Object) error {
return d.Mutate(ctx, new, old)
}
func mutatingActionHandler(val Mutator) handlerAction {
return &mutationWrapper{val}
}