Adds a client that enables strict field validation for all requests

Author: dlipovetsky

pkg/client/fieldvalidation.go

@@ -0,0 +1,106 @@
+/*
+Copyright 2024 The Kubernetes Authors.
+
+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 client
+
+import (
+	"context"
+
+	"k8s.io/apimachinery/pkg/api/meta"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+// WithStrictFieldValidation wraps a Client and configures strict field
+// validation to all write requests from this client.
+func WithStrictFieldValidation(c Client) Client {
+	return &clientWithFieldValidation{
+		validation: metav1.FieldValidationStrict,
+		c:          c,
+		Reader:     c,
+	}
+}
+
+type clientWithFieldValidation struct {
+	validation string
+	c          Client
+	Reader
+}
+
+func (f *clientWithFieldValidation) Create(ctx context.Context, obj Object, opts ...CreateOption) error {
+	return f.c.Create(ctx, obj, append([]CreateOption{FieldValidation(f.validation)}, opts...)...)
+}
+
+func (f *clientWithFieldValidation) Update(ctx context.Context, obj Object, opts ...UpdateOption) error {
+	return f.c.Update(ctx, obj, append([]UpdateOption{FieldValidation(f.validation)}, opts...)...)
+}
+
+func (f *clientWithFieldValidation) Patch(ctx context.Context, obj Object, patch Patch, opts ...PatchOption) error {
+	return f.c.Patch(ctx, obj, patch, append([]PatchOption{FieldValidation(f.validation)}, opts...)...)
+}
+
+func (f *clientWithFieldValidation) Delete(ctx context.Context, obj Object, opts ...DeleteOption) error {
+	return f.c.Delete(ctx, obj, opts...)
+}
+
+func (f *clientWithFieldValidation) DeleteAllOf(ctx context.Context, obj Object, opts ...DeleteAllOfOption) error {
+	return f.c.DeleteAllOf(ctx, obj, opts...)
+}
+
+func (f *clientWithFieldValidation) Scheme() *runtime.Scheme     { return f.c.Scheme() }
+func (f *clientWithFieldValidation) RESTMapper() meta.RESTMapper { return f.c.RESTMapper() }
+func (f *clientWithFieldValidation) GroupVersionKindFor(obj runtime.Object) (schema.GroupVersionKind, error) {
+	return f.c.GroupVersionKindFor(obj)
+}
+
+func (f *clientWithFieldValidation) IsObjectNamespaced(obj runtime.Object) (bool, error) {
+	return f.c.IsObjectNamespaced(obj)
+}
+
+func (f *clientWithFieldValidation) Status() StatusWriter {
+	return &subresourceClientWithFieldValidation{
+		validation:        f.validation,
+		subresourceWriter: f.c.Status(),
+	}
+}
+
+func (f *clientWithFieldValidation) SubResource(subresource string) SubResourceClient {
+	c := f.c.SubResource(subresource)
+	return &subresourceClientWithFieldValidation{
+		validation:        f.validation,
+		subresourceWriter: c,
+		SubResourceReader: c,
+	}
+}
+
+type subresourceClientWithFieldValidation struct {
+	validation        string
+	subresourceWriter SubResourceWriter
+	SubResourceReader
+}
+
+func (f *subresourceClientWithFieldValidation) Create(ctx context.Context, obj Object, subresource Object, opts ...SubResourceCreateOption) error {
+	return f.subresourceWriter.Create(ctx, obj, subresource, append([]SubResourceCreateOption{FieldValidation(f.validation)}, opts...)...)
+}
+
+func (f *subresourceClientWithFieldValidation) Update(ctx context.Context, obj Object, opts ...SubResourceUpdateOption) error {
+	return f.subresourceWriter.Update(ctx, obj, append([]SubResourceUpdateOption{FieldValidation(f.validation)}, opts...)...)
+}
+
+func (f *subresourceClientWithFieldValidation) Patch(ctx context.Context, obj Object, patch Patch, opts ...SubResourcePatchOption) error {
+	return f.subresourceWriter.Patch(ctx, obj, patch, append([]SubResourcePatchOption{FieldValidation(f.validation)}, opts...)...)
+}

pkg/client/options.go

@@ -169,6 +169,39 @@ func (f FieldOwner) ApplyToSubResourceUpdate(opts *SubResourceUpdateOptions) {
 	opts.FieldManager = string(f)
 }
 
+// FieldValidation configures field validation for the given requests.
+type FieldValidation string
+
+// ApplyToPatch applies this configuration to the given patch options.
+func (f FieldValidation) ApplyToPatch(opts *PatchOptions) {
+	opts.FieldValidation = string(f)
+}
+
+// ApplyToCreate applies this configuration to the given create options.
+func (f FieldValidation) ApplyToCreate(opts *CreateOptions) {
+	opts.FieldValidation = string(f)
+}
+
+// ApplyToUpdate applies this configuration to the given update options.
+func (f FieldValidation) ApplyToUpdate(opts *UpdateOptions) {
+	opts.FieldValidation = string(f)
+}
+
+// ApplyToSubResourcePatch applies this configuration to the given patch options.
+func (f FieldValidation) ApplyToSubResourcePatch(opts *SubResourcePatchOptions) {
+	opts.FieldValidation = string(f)
+}
+
+// ApplyToSubResourceCreate applies this configuration to the given create options.
+func (f FieldValidation) ApplyToSubResourceCreate(opts *SubResourceCreateOptions) {
+	opts.FieldValidation = string(f)
+}
+
+// ApplyToSubResourceUpdate applies this configuration to the given update options.
+func (f FieldValidation) ApplyToSubResourceUpdate(opts *SubResourceUpdateOptions) {
+	opts.FieldValidation = string(f)
+}
+
 // }}}
 
 // {{{ Create Options