mirror of https://github.com/k3s-io/k3s
109 lines
3.9 KiB
Go
109 lines
3.9 KiB
Go
/*
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Copyright 2019 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 flowschema
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import (
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"context"
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apiequality "k8s.io/apimachinery/pkg/api/equality"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"k8s.io/apiserver/pkg/storage/names"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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"k8s.io/kubernetes/pkg/apis/flowcontrol"
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"k8s.io/kubernetes/pkg/apis/flowcontrol/validation"
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)
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// flowSchemaStrategy implements verification logic for FlowSchema.
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type flowSchemaStrategy 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 flow schema objects.
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var Strategy = flowSchemaStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
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// NamespaceScoped returns false because all PriorityClasses are global.
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func (flowSchemaStrategy) NamespaceScoped() bool {
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return false
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}
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// PrepareForCreate clears the status of a flow-schema before creation.
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func (flowSchemaStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) {
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fl := obj.(*flowcontrol.FlowSchema)
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fl.Status = flowcontrol.FlowSchemaStatus{}
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fl.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 (flowSchemaStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
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newFlowSchema := obj.(*flowcontrol.FlowSchema)
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oldFlowSchema := old.(*flowcontrol.FlowSchema)
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// Spec updates bump the generation so that we can distinguish between status updates.
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if !apiequality.Semantic.DeepEqual(newFlowSchema.Spec, oldFlowSchema.Spec) {
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newFlowSchema.Generation = oldFlowSchema.Generation + 1
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}
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newFlowSchema.Status = oldFlowSchema.Status
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}
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// Validate validates a new flow-schema.
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func (flowSchemaStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList {
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return validation.ValidateFlowSchema(obj.(*flowcontrol.FlowSchema))
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}
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// Canonicalize normalizes the object after validation.
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func (flowSchemaStrategy) Canonicalize(obj runtime.Object) {
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}
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func (flowSchemaStrategy) AllowUnconditionalUpdate() bool {
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return true
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}
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// AllowCreateOnUpdate is false for flow-schemas; this means a POST is needed to create one.
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func (flowSchemaStrategy) 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 (flowSchemaStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
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return validation.ValidateFlowSchemaUpdate(old.(*flowcontrol.FlowSchema), obj.(*flowcontrol.FlowSchema))
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}
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type flowSchemaStatusStrategy struct {
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flowSchemaStrategy
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}
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// StatusStrategy is the default logic that applies when updating flow-schema objects' status.
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var StatusStrategy = flowSchemaStatusStrategy{Strategy}
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func (flowSchemaStatusStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
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newFlowSchema := obj.(*flowcontrol.FlowSchema)
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oldFlowSchema := old.(*flowcontrol.FlowSchema)
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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 := newFlowSchema.ManagedFields
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newFlowSchema.ObjectMeta = oldFlowSchema.ObjectMeta
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newFlowSchema.ManagedFields = managedFields
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newFlowSchema.Spec = oldFlowSchema.Spec
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}
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func (flowSchemaStatusStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
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return validation.ValidateFlowSchemaStatusUpdate(old.(*flowcontrol.FlowSchema), obj.(*flowcontrol.FlowSchema))
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}
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