⚠️ Deprecate admission.Validator and admission.Defaulter

examples/crd/pkg/resource.go

@@ -17,14 +17,8 @@ limitations under the License.
 package pkg
 
 import (
-	"fmt"
-	"time"
-
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/runtime"
-	"sigs.k8s.io/controller-runtime/pkg/webhook"
-	"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
 )
 
 // ChaosPodSpec defines the desired state of ChaosPod
@@ -62,61 +56,6 @@ type ChaosPodList struct {
 	Items           []ChaosPod `json:"items"`
 }
 
-// +kubebuilder:webhook:path=/validate-chaosapps-metamagical-io-v1-chaospod,mutating=false,failurePolicy=fail,groups=chaosapps.metamagical.io,resources=chaospods,verbs=create;update,versions=v1,name=vchaospod.kb.io
-
-var _ webhook.Validator = &ChaosPod{}
-
-// ValidateCreate implements webhookutil.validator so a webhook will be registered for the type
-func (c *ChaosPod) ValidateCreate() (admission.Warnings, error) {
-	log.Info("validate create", "name", c.Name)
-
-	if c.Spec.NextStop.Before(&metav1.Time{Time: time.Now()}) {
-		return nil, fmt.Errorf(".spec.nextStop must be later than current time")
-	}
-	return nil, nil
-}
-
-// ValidateUpdate implements webhookutil.validator so a webhook will be registered for the type
-func (c *ChaosPod) ValidateUpdate(old runtime.Object) (admission.Warnings, error) {
-	log.Info("validate update", "name", c.Name)
-
-	if c.Spec.NextStop.Before(&metav1.Time{Time: time.Now()}) {
-		return nil, fmt.Errorf(".spec.nextStop must be later than current time")
-	}
-
-	oldC, ok := old.(*ChaosPod)
-	if !ok {
-		return nil, fmt.Errorf("expect old object to be a %T instead of %T", oldC, old)
-	}
-	if c.Spec.NextStop.After(oldC.Spec.NextStop.Add(time.Hour)) {
-		return nil, fmt.Errorf("it is not allowed to delay.spec.nextStop for more than 1 hour")
-	}
-	return nil, nil
-}
-
-// ValidateDelete implements webhookutil.validator so a webhook will be registered for the type
-func (c *ChaosPod) ValidateDelete() (admission.Warnings, error) {
-	log.Info("validate delete", "name", c.Name)
-
-	if c.Spec.NextStop.Before(&metav1.Time{Time: time.Now()}) {
-		return nil, fmt.Errorf(".spec.nextStop must be later than current time")
-	}
-	return nil, nil
-}
-
-// +kubebuilder:webhook:path=/mutate-chaosapps-metamagical-io-v1-chaospod,mutating=true,failurePolicy=fail,groups=chaosapps.metamagical.io,resources=chaospods,verbs=create;update,versions=v1,name=mchaospod.kb.io
-
-var _ webhook.Defaulter = &ChaosPod{}
-
-// Default implements webhookutil.defaulter so a webhook will be registered for the type
-func (c *ChaosPod) Default() {
-	log.Info("default", "name", c.Name)
-
-	if c.Spec.NextStop.Before(&metav1.Time{Time: time.Now()}) {
-		c.Spec.NextStop = metav1.Time{Time: time.Now().Add(time.Minute)}
-	}
-}
-
 func init() {
 	SchemeBuilder.Register(&ChaosPod{}, &ChaosPodList{})
 }

pkg/builder/example_webhook_test.go

@@ -24,16 +24,10 @@ import (
 	logf "sigs.k8s.io/controller-runtime/pkg/log"
 	"sigs.k8s.io/controller-runtime/pkg/manager"
 	"sigs.k8s.io/controller-runtime/pkg/manager/signals"
-	"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
 
 	examplegroup "sigs.k8s.io/controller-runtime/examples/crd/pkg"
 )
 
-// examplegroup.ChaosPod has implemented both admission.Defaulter and
-// admission.Validator interfaces.
-var _ admission.Defaulter = &examplegroup.ChaosPod{}
-var _ admission.Validator = &examplegroup.ChaosPod{}
-
 // This example use webhook builder to create a simple webhook that is managed
 // by a manager for CRD ChaosPod. And then start the manager.
 func ExampleWebhookBuilder() {

pkg/webhook/admission/defaulter.go

@@ -27,12 +27,14 @@ import (
 )
 
 // Defaulter defines functions for setting defaults on resources.
+// Deprecated: Ue CustomDefaulter instead.
 type Defaulter interface {
 	runtime.Object
 	Default()
 }
 
 // DefaultingWebhookFor creates a new Webhook for Defaulting the provided type.
+// Deprecated: Use WithCustomDefaulter instead.
 func DefaultingWebhookFor(scheme *runtime.Scheme, defaulter Defaulter) *Webhook {
 	return &Webhook{
 		Handler: &mutatingHandler{defaulter: defaulter, decoder: NewDecoder(scheme)},

pkg/webhook/admission/validator.go

@@ -33,6 +33,7 @@ type Warnings []string
 // Validator defines functions for validating an operation.
 // The custom resource kind which implements this interface can validate itself.
 // To validate the custom resource with another specific struct, use CustomValidator instead.
+// Deprecated: Use CustomValidator instead.
 type Validator interface {
 	runtime.Object
 
@@ -53,6 +54,7 @@ type Validator interface {
 }
 
 // ValidatingWebhookFor creates a new Webhook for validating the provided type.
+// Deprecated: Use WithCustomValidator instead.
 func ValidatingWebhookFor(scheme *runtime.Scheme, validator Validator) *Webhook {
 	return &Webhook{
 		Handler: &validatingHandler{validator: validator, decoder: NewDecoder(scheme)},

pkg/webhook/admission/validator_custom.go

@@ -30,7 +30,6 @@ import (
 // CustomValidator defines functions for validating an operation.
 // The object to be validated is passed into methods as a parameter.
 type CustomValidator interface {
-
 	// ValidateCreate validates the object on creation.
 	// The optional warnings will be added to the response as warning messages.
 	// Return an error if the object is invalid.

pkg/webhook/alias.go

@@ -24,9 +24,11 @@ import (
 // define some aliases for common bits of the webhook functionality
 
 // Defaulter defines functions for setting defaults on resources.
+// Deprecated: Use CustomDefaulter instead.
 type Defaulter = admission.Defaulter
 
 // Validator defines functions for validating an operation.
+// Deprecated: Use CustomValidator instead.
 type Validator = admission.Validator
 
 // CustomDefaulter defines functions for setting defaults on resources.