Merge pull request #8807 from ykakarap/pr-inmemory-provider-clusterclass

🌱 add ClusterClass support for in-memory provider

test/infrastructure/inmemory/api/v1alpha1/inmemoryclustertemplate_types.go

@@ -0,0 +1,63 @@
+/*
+Copyright 2023 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 v1alpha1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1"
+)
+
+// InMemoryClusterTemplateSpec defines the desired state of InMemoryClusterTemplate.
+type InMemoryClusterTemplateSpec struct {
+	Template InMemoryClusterTemplateResource `json:"template"`
+}
+
+// +kubebuilder:resource:path=inmemoryclustertemplates,scope=Namespaced,categories=cluster-api
+// +kubebuilder:object:root=true
+// +kubebuilder:storageversion
+// +kubebuilder:printcolumn:name="Age",type="date",JSONPath=".metadata.creationTimestamp",description="Time duration since creation of InMemoryClusterTemplate"
+
+// InMemoryClusterTemplate is the Schema for the inmemoryclustertemplates API.
+type InMemoryClusterTemplate struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec InMemoryClusterTemplateSpec `json:"spec,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+
+// InMemoryClusterTemplateList contains a list of InMemoryClusterTemplate.
+type InMemoryClusterTemplateList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []InMemoryClusterTemplate `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&InMemoryClusterTemplate{}, &InMemoryClusterTemplateList{})
+}
+
+// InMemoryClusterTemplateResource describes the data needed to create a InMemoryCluster from a template.
+type InMemoryClusterTemplateResource struct {
+	// Standard object's metadata.
+	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
+	// +optional
+	ObjectMeta clusterv1.ObjectMeta `json:"metadata,omitempty"`
+	Spec       InMemoryClusterSpec  `json:"spec"`
+}

test/infrastructure/inmemory/api/v1alpha1/inmemoryclustertemplate_webhook.go

@@ -0,0 +1,58 @@
+/*
+Copyright 2023 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 v1alpha1
+
+import (
+	"k8s.io/apimachinery/pkg/runtime"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/webhook"
+	"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
+)
+
+func (c *InMemoryClusterTemplate) SetupWebhookWithManager(mgr ctrl.Manager) error {
+	return ctrl.NewWebhookManagedBy(mgr).
+		For(c).
+		Complete()
+}
+
+// +kubebuilder:webhook:verbs=create;update,path=/mutate-infrastructure-cluster-x-k8s-io-v1alpha1-inmemoryclustertemplate,mutating=true,failurePolicy=fail,matchPolicy=Equivalent,groups=infrastructure.cluster.x-k8s.io,resources=inmemoryclustertemplates,versions=v1alpha1,name=default.inmemoryclustertemplate.infrastructure.cluster.x-k8s.io,sideEffects=None,admissionReviewVersions=v1;v1beta1
+
+var _ webhook.Defaulter = &InMemoryClusterTemplate{}
+
+// Default implements webhook.Defaulter so a webhook will be registered for the type.
+func (c *InMemoryClusterTemplate) Default() {
+
+}
+
+// +kubebuilder:webhook:verbs=create;update,path=/validate-infrastructure-cluster-x-k8s-io-v1alpha1-inmemoryclustertemplate,mutating=false,failurePolicy=fail,matchPolicy=Equivalent,groups=infrastructure.cluster.x-k8s.io,resources=inmemoryclustertemplates,versions=v1alpha1,name=validation.inmemoryclustertemplate.infrastructure.cluster.x-k8s.io,sideEffects=None,admissionReviewVersions=v1;v1beta1
+
+var _ webhook.Validator = &InMemoryClusterTemplate{}
+
+// ValidateCreate implements webhook.Validator so a webhook will be registered for the type.
+func (c *InMemoryClusterTemplate) ValidateCreate() (admission.Warnings, error) {
+	return nil, nil
+}
+
+// ValidateUpdate implements webhook.Validator so a webhook will be registered for the type.
+func (c *InMemoryClusterTemplate) ValidateUpdate(_ runtime.Object) (admission.Warnings, error) {
+	return nil, nil
+}
+
+// ValidateDelete implements webhook.Validator so a webhook will be registered for the type.
+func (c *InMemoryClusterTemplate) ValidateDelete() (admission.Warnings, error) {
+	return nil, nil
+}

test/infrastructure/inmemory/config/crd/kustomization.yaml

@@ -8,6 +8,7 @@ apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - bases/infrastructure.cluster.x-k8s.io_inmemoryclusters.yaml
+  - bases/infrastructure.cluster.x-k8s.io_inmemoryclustertemplates.yaml
   - bases/infrastructure.cluster.x-k8s.io_inmemorymachines.yaml
   - bases/infrastructure.cluster.x-k8s.io_inmemorymachinetemplates.yaml
 # +kubebuilder:scaffold:crdkustomizeresource
@@ -16,12 +17,14 @@ patchesStrategicMerge:
   # [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix.
   # patches here are for enabling the conversion webhook for each CRD
   - patches/webhook_in_inmemoryclusters.yaml
+  - patches/webhook_in_inmemoryclustertemplates.yaml
   - patches/webhook_in_inmemorymachines.yaml
   - patches/webhook_in_inmemorymachinetemplates.yaml
   # +kubebuilder:scaffold:crdkustomizewebhookpatch
   # [CERTMANAGER] To enable webhook, uncomment all the sections with [CERTMANAGER] prefix.
   # patches here are for enabling the CA injection for each CRD
   - patches/cainjection_in_inmemoryclusters.yaml
+  - patches/cainjection_in_inmemoryclustertemplates.yaml
   - patches/cainjection_in_inmemorymachines.yaml
   - patches/cainjection_in_inmemorymachinetemplates.yaml
 # +kubebuilder:scaffold:crdkustomizecainjectionpatch

test/infrastructure/inmemory/config/crd/patches/cainjection_in_inmemoryclustertemplates.yaml

@@ -0,0 +1,8 @@
+# The following patch adds a directive for certmanager to inject CA into the CRD
+# CRD conversion requires k8s 1.13 or later.
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    cert-manager.io/inject-ca-from: $(CERTIFICATE_NAMESPACE)/$(CERTIFICATE_NAME)
+  name: inmemoryclustertemplates.infrastructure.cluster.x-k8s.io

test/infrastructure/inmemory/config/crd/patches/webhook_in_inmemoryclustertemplates.yaml

@@ -0,0 +1,19 @@
+# The following patch enables conversion webhook for CRD
+# CRD conversion requires k8s 1.13 or later.
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: inmemoryclustertemplates.infrastructure.cluster.x-k8s.io
+spec:
+  conversion:
+    strategy: Webhook
+    webhook:
+      conversionReviewVersions: ["v1", "v1beta1"]
+      clientConfig:
+        # this is "\n" used as a placeholder, otherwise it will be rejected by the apiserver for being blank,
+        # but we're going to set it later using the cert-manager (or potentially a patch if not using cert-manager)
+        caBundle: Cg==
+        service:
+          namespace: system
+          name: webhook-service
+          path: /convert