🐛 Fix the webhook creation for defaulting webhooks

generate_testdata.sh

@@ -64,6 +64,7 @@ scaffold_test_project() {
             $kb create api --group crew --version v1 --kind FirstMate --controller=true --resource=true --make=false
             $kb create webhook --group crew --version v1 --kind FirstMate --conversion
             $kb create api --group crew --version v1 --kind Admiral --controller=true --resource=true --namespaced=false --make=false
+	    $kb create webhook --group crew --version v1 --kind Admiral --defaulting
         elif [ $project == "project-v2-multigroup" ] || [ $project == "project-v3-multigroup" ]; then
             header_text 'Switching to multigroup layout ...'
             $kb edit --multigroup=true
@@ -74,7 +75,9 @@ scaffold_test_project() {
             $kb create api --group ship --version v1beta1 --kind Frigate --controller=true --resource=true --make=false
             $kb create webhook --group ship --version v1beta1 --kind Frigate --conversion
             $kb create api --group ship --version v1 --kind Destroyer --controller=true --resource=true --namespaced=false --make=false
+	    $kb create webhook --group ship --version v1 --kind Destroyer --defaulting
             $kb create api --group ship --version v2alpha1 --kind Cruiser --controller=true --resource=true --namespaced=false --make=false
+	    $kb create webhook --group ship --version v2alpha1 --kind Cruiser --programmatic-validation
             $kb create api --group sea-creatures --version v1beta1 --kind Kraken --controller=true --resource=true --make=false
             $kb create api --group sea-creatures --version v1beta2 --kind Leviathan --controller=true --resource=true --make=false
             $kb create api --group foo.policy --version v1 --kind HealthCheckPolicy --controller=true --resource=true --make=false

pkg/plugin/v2/scaffolds/internal/templates/webhook/webhook.go

@@ -78,8 +78,10 @@ package {{ .Resource.Version }}
 import (
 	ctrl "sigs.k8s.io/controller-runtime"
 	logf "sigs.k8s.io/controller-runtime/pkg/log"
-	{{- if or .Validating .Defaulting }}
+	{{- if or .Validating }}
 	"k8s.io/apimachinery/pkg/runtime"
+	{{- end }}
+	{{- if or .Validating .Defaulting }}
 	"sigs.k8s.io/controller-runtime/pkg/webhook"
 	{{- end }}
 )

pkg/plugin/v3/scaffolds/internal/templates/config/api/webhook.go

@@ -82,8 +82,10 @@ package {{ .Resource.Version }}
 import (
 	ctrl "sigs.k8s.io/controller-runtime"
 	logf "sigs.k8s.io/controller-runtime/pkg/log"
-	{{- if or .Validating .Defaulting }}
+	{{- if .Validating }}
 	"k8s.io/apimachinery/pkg/runtime"
+	{{- end }}
+	{{- if or .Validating .Defaulting }}
 	"sigs.k8s.io/controller-runtime/pkg/webhook"
 	{{- end }}
 )

testdata/project-v2-multigroup/apis/ship/v1/destroyer_webhook.go

@@ -0,0 +1,45 @@
+/*
+Copyright 2020 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 v1
+
+import (
+	ctrl "sigs.k8s.io/controller-runtime"
+	logf "sigs.k8s.io/controller-runtime/pkg/log"
+	"sigs.k8s.io/controller-runtime/pkg/webhook"
+)
+
+// log is for logging in this package.
+var destroyerlog = logf.Log.WithName("destroyer-resource")
+
+func (r *Destroyer) SetupWebhookWithManager(mgr ctrl.Manager) error {
+	return ctrl.NewWebhookManagedBy(mgr).
+		For(r).
+		Complete()
+}
+
+// EDIT THIS FILE!  THIS IS SCAFFOLDING FOR YOU TO OWN!
+
+// +kubebuilder:webhook:path=/mutate-ship-testproject-org-v1-destroyer,mutating=true,failurePolicy=fail,groups=ship.testproject.org,resources=destroyers,verbs=create;update,versions=v1,name=mdestroyer.kb.io
+
+var _ webhook.Defaulter = &Destroyer{}
+
+// Default implements webhook.Defaulter so a webhook will be registered for the type
+func (r *Destroyer) Default() {
+	destroyerlog.Info("default", "name", r.Name)
+
+	// TODO(user): fill in your defaulting logic.
+}

testdata/project-v2-multigroup/apis/ship/v2alpha1/cruiser_webhook.go

@@ -0,0 +1,64 @@
+/*
+Copyright 2020 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 v2alpha1
+
+import (
+	"k8s.io/apimachinery/pkg/runtime"
+	ctrl "sigs.k8s.io/controller-runtime"
+	logf "sigs.k8s.io/controller-runtime/pkg/log"
+	"sigs.k8s.io/controller-runtime/pkg/webhook"
+)
+
+// log is for logging in this package.
+var cruiserlog = logf.Log.WithName("cruiser-resource")
+
+func (r *Cruiser) SetupWebhookWithManager(mgr ctrl.Manager) error {
+	return ctrl.NewWebhookManagedBy(mgr).
+		For(r).
+		Complete()
+}
+
+// EDIT THIS FILE!  THIS IS SCAFFOLDING FOR YOU TO OWN!
+
+// TODO(user): change verbs to "verbs=create;update;delete" if you want to enable deletion validation.
+// +kubebuilder:webhook:verbs=create;update,path=/validate-ship-testproject-org-v2alpha1-cruiser,mutating=false,failurePolicy=fail,groups=ship.testproject.org,resources=cruisers,versions=v2alpha1,name=vcruiser.kb.io
+
+var _ webhook.Validator = &Cruiser{}
+
+// ValidateCreate implements webhook.Validator so a webhook will be registered for the type
+func (r *Cruiser) ValidateCreate() error {
+	cruiserlog.Info("validate create", "name", r.Name)
+
+	// TODO(user): fill in your validation logic upon object creation.
+	return nil
+}
+
+// ValidateUpdate implements webhook.Validator so a webhook will be registered for the type
+func (r *Cruiser) ValidateUpdate(old runtime.Object) error {
+	cruiserlog.Info("validate update", "name", r.Name)
+
+	// TODO(user): fill in your validation logic upon object update.
+	return nil
+}
+
+// ValidateDelete implements webhook.Validator so a webhook will be registered for the type
+func (r *Cruiser) ValidateDelete() error {
+	cruiserlog.Info("validate delete", "name", r.Name)
+
+	// TODO(user): fill in your validation logic upon object deletion.
+	return nil
+}

testdata/project-v2-multigroup/config/webhook/manifests.yaml

@@ -24,6 +24,24 @@ webhooks:
     - UPDATE
     resources:
     - captains
+- clientConfig:
+    caBundle: Cg==
+    service:
+      name: webhook-service
+      namespace: system
+      path: /mutate-ship-testproject-org-v1-destroyer
+  failurePolicy: Fail
+  name: mdestroyer.kb.io
+  rules:
+  - apiGroups:
+    - ship.testproject.org
+    apiVersions:
+    - v1
+    operations:
+    - CREATE
+    - UPDATE
+    resources:
+    - destroyers
 
 ---
 apiVersion: admissionregistration.k8s.io/v1beta1
@@ -50,3 +68,21 @@ webhooks:
     - UPDATE
     resources:
     - captains
+- clientConfig:
+    caBundle: Cg==
+    service:
+      name: webhook-service
+      namespace: system
+      path: /validate-ship-testproject-org-v2alpha1-cruiser
+  failurePolicy: Fail
+  name: vcruiser.kb.io
+  rules:
+  - apiGroups:
+    - ship.testproject.org
+    apiVersions:
+    - v2alpha1
+    operations:
+    - CREATE
+    - UPDATE
+    resources:
+    - cruisers

testdata/project-v2-multigroup/main.go

@@ -114,6 +114,10 @@ func main() {
 		setupLog.Error(err, "unable to create controller", "controller", "Destroyer")
 		os.Exit(1)
 	}
+	if err = (&shipv1.Destroyer{}).SetupWebhookWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create webhook", "webhook", "Destroyer")
+		os.Exit(1)
+	}
 	if err = (&shipcontroller.CruiserReconciler{
 		Client: mgr.GetClient(),
 		Log:    ctrl.Log.WithName("controllers").WithName("Cruiser"),
@@ -122,6 +126,10 @@ func main() {
 		setupLog.Error(err, "unable to create controller", "controller", "Cruiser")
 		os.Exit(1)
 	}
+	if err = (&shipv2alpha1.Cruiser{}).SetupWebhookWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create webhook", "webhook", "Cruiser")
+		os.Exit(1)
+	}
 	if err = (&seacreaturescontroller.KrakenReconciler{
 		Client: mgr.GetClient(),
 		Log:    ctrl.Log.WithName("controllers").WithName("Kraken"),

testdata/project-v2/api/v1/admiral_webhook.go

@@ -0,0 +1,45 @@
+/*
+Copyright 2020 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 v1
+
+import (
+	ctrl "sigs.k8s.io/controller-runtime"
+	logf "sigs.k8s.io/controller-runtime/pkg/log"
+	"sigs.k8s.io/controller-runtime/pkg/webhook"
+)
+
+// log is for logging in this package.
+var admirallog = logf.Log.WithName("admiral-resource")
+
+func (r *Admiral) SetupWebhookWithManager(mgr ctrl.Manager) error {
+	return ctrl.NewWebhookManagedBy(mgr).
+		For(r).
+		Complete()
+}
+
+// EDIT THIS FILE!  THIS IS SCAFFOLDING FOR YOU TO OWN!
+
+// +kubebuilder:webhook:path=/mutate-crew-testproject-org-v1-admiral,mutating=true,failurePolicy=fail,groups=crew.testproject.org,resources=admirals,verbs=create;update,versions=v1,name=madmiral.kb.io
+
+var _ webhook.Defaulter = &Admiral{}
+
+// Default implements webhook.Defaulter so a webhook will be registered for the type
+func (r *Admiral) Default() {
+	admirallog.Info("default", "name", r.Name)
+
+	// TODO(user): fill in your defaulting logic.
+}

testdata/project-v2/config/webhook/manifests.yaml

@@ -6,6 +6,24 @@ metadata:
   creationTimestamp: null
   name: mutating-webhook-configuration
 webhooks:
+- clientConfig:
+    caBundle: Cg==
+    service:
+      name: webhook-service
+      namespace: system
+      path: /mutate-crew-testproject-org-v1-admiral
+  failurePolicy: Fail
+  name: madmiral.kb.io
+  rules:
+  - apiGroups:
+    - crew.testproject.org
+    apiVersions:
+    - v1
+    operations:
+    - CREATE
+    - UPDATE
+    resources:
+    - admirals
 - clientConfig:
     caBundle: Cg==
     service:

testdata/project-v2/main.go

@@ -99,6 +99,10 @@ func main() {
 		setupLog.Error(err, "unable to create controller", "controller", "Admiral")
 		os.Exit(1)
 	}
+	if err = (&crewv1.Admiral{}).SetupWebhookWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create webhook", "webhook", "Admiral")
+		os.Exit(1)
+	}
 	// +kubebuilder:scaffold:builder
 
 	setupLog.Info("starting manager")

testdata/project-v3-multigroup/apis/ship/v1/destroyer_webhook.go

@@ -0,0 +1,45 @@
+/*
+Copyright 2020 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 v1
+
+import (
+	ctrl "sigs.k8s.io/controller-runtime"
+	logf "sigs.k8s.io/controller-runtime/pkg/log"
+	"sigs.k8s.io/controller-runtime/pkg/webhook"
+)
+
+// log is for logging in this package.
+var destroyerlog = logf.Log.WithName("destroyer-resource")
+
+func (r *Destroyer) SetupWebhookWithManager(mgr ctrl.Manager) error {
+	return ctrl.NewWebhookManagedBy(mgr).
+		For(r).
+		Complete()
+}
+
+// EDIT THIS FILE!  THIS IS SCAFFOLDING FOR YOU TO OWN!
+
+// +kubebuilder:webhook:path=/mutate-ship-testproject-org-v1-destroyer,mutating=true,failurePolicy=fail,groups=ship.testproject.org,resources=destroyers,verbs=create;update,versions=v1,name=mdestroyer.kb.io
+
+var _ webhook.Defaulter = &Destroyer{}
+
+// Default implements webhook.Defaulter so a webhook will be registered for the type
+func (r *Destroyer) Default() {
+	destroyerlog.Info("default", "name", r.Name)
+
+	// TODO(user): fill in your defaulting logic.
+}