mirror of https://github.com/k3s-io/k3s
65 lines
2.2 KiB
Go
65 lines
2.2 KiB
Go
/*
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Copyright 2018 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 customresource
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import (
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"context"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/validation/field"
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)
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type statusStrategy struct {
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customResourceStrategy
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}
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func NewStatusStrategy(strategy customResourceStrategy) statusStrategy {
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return statusStrategy{strategy}
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}
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func (a statusStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
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// update is only allowed to set status
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newCustomResourceObject := obj.(*unstructured.Unstructured)
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newCustomResource := newCustomResourceObject.UnstructuredContent()
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status, ok := newCustomResource["status"]
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// managedFields must be preserved since it's been modified to
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// track changed fields in the status update.
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managedFields := newCustomResourceObject.GetManagedFields()
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// copy old object into new object
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oldCustomResourceObject := old.(*unstructured.Unstructured)
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// overridding the resourceVersion in metadata is safe here, we have already checked that
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// new object and old object have the same resourceVersion.
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*newCustomResourceObject = *oldCustomResourceObject.DeepCopy()
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// set status
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newCustomResourceObject.SetManagedFields(managedFields)
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newCustomResource = newCustomResourceObject.UnstructuredContent()
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if ok {
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newCustomResource["status"] = status
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} else {
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delete(newCustomResource, "status")
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}
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}
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// ValidateUpdate is the default update validation for an end user updating status.
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func (a statusStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
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return a.customResourceStrategy.validator.ValidateStatusUpdate(ctx, obj, old, a.scale)
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}
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