Add scaffolding

PROJECT

@@ -1,3 +1,9 @@
-version: "2"
-domain: x-k8s.io
+domain: cluster.x.k8s.io
+layout: go.kubebuilder.io/v2
+projectName: capn
 repo: sigs.k8s.io/cluster-api-provider-nested
+resources:
+- group: controlplane
+  kind: NestedControlPlane
+  version: v1alpha4
+version: 3-alpha

api/v1alpha4/groupversion_info.go

@@ -0,0 +1,36 @@
+/*
+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 v1alpha4 contains API Schema definitions for the controlplane v1alpha4 API group
+// +kubebuilder:object:generate=true
+// +groupName=controlplane.cluster.x.k8s.io
+package v1alpha4
+
+import (
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"sigs.k8s.io/controller-runtime/pkg/scheme"
+)
+
+var (
+	// GroupVersion is group version used to register these objects
+	GroupVersion = schema.GroupVersion{Group: "controlplane.cluster.x.k8s.io", Version: "v1alpha4"}
+
+	// SchemeBuilder is used to add go types to the GroupVersionKind scheme
+	SchemeBuilder = &scheme.Builder{GroupVersion: GroupVersion}
+
+	// AddToScheme adds the types in this group-version to the given scheme.
+	AddToScheme = SchemeBuilder.AddToScheme
+)

api/v1alpha4/nestedcontrolplane_types.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 v1alpha4
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// EDIT THIS FILE!  THIS IS SCAFFOLDING FOR YOU TO OWN!
+// NOTE: json tags are required.  Any new fields you add must have json tags for the fields to be serialized.
+
+// NestedControlPlaneSpec defines the desired state of NestedControlPlane
+type NestedControlPlaneSpec struct {
+	// INSERT ADDITIONAL SPEC FIELDS - desired state of cluster
+	// Important: Run "make" to regenerate code after modifying this file
+
+	// Foo is an example field of NestedControlPlane. Edit NestedControlPlane_types.go to remove/update
+	Foo string `json:"foo,omitempty"`
+}
+
+// NestedControlPlaneStatus defines the observed state of NestedControlPlane
+type NestedControlPlaneStatus struct {
+	// INSERT ADDITIONAL STATUS FIELD - define observed state of cluster
+	// Important: Run "make" to regenerate code after modifying this file
+}
+
+// +kubebuilder:object:root=true
+// +kubebuilder:subresource:status
+
+// NestedControlPlane is the Schema for the nestedcontrolplanes API
+type NestedControlPlane struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   NestedControlPlaneSpec   `json:"spec,omitempty"`
+	Status NestedControlPlaneStatus `json:"status,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+
+// NestedControlPlaneList contains a list of NestedControlPlane
+type NestedControlPlaneList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []NestedControlPlane `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&NestedControlPlane{}, &NestedControlPlaneList{})
+}

config/certmanager/certificate.yaml

@@ -0,0 +1,26 @@
+# The following manifests contain a self-signed issuer CR and a certificate CR.
+# More document can be found at https://docs.cert-manager.io
+# WARNING: Targets CertManager 0.11 check https://docs.cert-manager.io/en/latest/tasks/upgrading/index.html for 
+# breaking changes
+apiVersion: cert-manager.io/v1alpha2
+kind: Issuer
+metadata:
+  name: selfsigned-issuer
+  namespace: system
+spec:
+  selfSigned: {}
+---
+apiVersion: cert-manager.io/v1alpha2
+kind: Certificate
+metadata:
+  name: serving-cert  # this name should match the one appeared in kustomizeconfig.yaml
+  namespace: system
+spec:
+  # $(SERVICE_NAME) and $(SERVICE_NAMESPACE) will be substituted by kustomize
+  dnsNames:
+  - $(SERVICE_NAME).$(SERVICE_NAMESPACE).svc
+  - $(SERVICE_NAME).$(SERVICE_NAMESPACE).svc.cluster.local
+  issuerRef:
+    kind: Issuer
+    name: selfsigned-issuer
+  secretName: webhook-server-cert # this secret will not be prefixed, since it's not managed by kustomize

config/certmanager/kustomization.yaml

@@ -0,0 +1,5 @@
+resources:
+- certificate.yaml
+
+configurations:
+- kustomizeconfig.yaml

config/certmanager/kustomizeconfig.yaml

@@ -0,0 +1,16 @@
+# This configuration is for teaching kustomize how to update name ref and var substitution 
+nameReference:
+- kind: Issuer
+  group: cert-manager.io
+  fieldSpecs:
+  - kind: Certificate
+    group: cert-manager.io
+    path: spec/issuerRef/name
+
+varReference:
+- kind: Certificate
+  group: cert-manager.io
+  path: spec/commonName
+- kind: Certificate
+  group: cert-manager.io
+  path: spec/dnsNames

config/crd/bases/controlplane.cluster.x.k8s.io_nestedcontrolplanes.yaml

@@ -0,0 +1,58 @@
+
+---
+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.3.0
+  creationTimestamp: null
+  name: nestedcontrolplanes.controlplane.cluster.x.k8s.io
+spec:
+  group: controlplane.cluster.x.k8s.io
+  names:
+    kind: NestedControlPlane
+    listKind: NestedControlPlaneList
+    plural: nestedcontrolplanes
+    singular: nestedcontrolplane
+  scope: Namespaced
+  subresources:
+    status: {}
+  validation:
+    openAPIV3Schema:
+      description: NestedControlPlane is the Schema for the nestedcontrolplanes API
+      properties:
+        apiVersion:
+          description: 'APIVersion defines the versioned schema of this representation
+            of an object. Servers should convert recognized schemas to the latest
+            internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
+          type: string
+        kind:
+          description: 'Kind is a string value representing the REST resource this
+            object represents. Servers may infer this from the endpoint the client
+            submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+          type: string
+        metadata:
+          type: object
+        spec:
+          description: NestedControlPlaneSpec defines the desired state of NestedControlPlane
+          properties:
+            foo:
+              description: Foo is an example field of NestedControlPlane. Edit NestedControlPlane_types.go
+                to remove/update
+              type: string
+          type: object
+        status:
+          description: NestedControlPlaneStatus defines the observed state of NestedControlPlane
+          type: object
+      type: object
+  version: v1alpha4
+  versions:
+  - name: v1alpha4
+    served: true
+    storage: true
+status:
+  acceptedNames:
+    kind: ""
+    plural: ""
+  conditions: []
+  storedVersions: []

config/crd/kustomization.yaml

@@ -0,0 +1,21 @@
+# This kustomization.yaml is not intended to be run by itself,
+# since it depends on service name and namespace that are out of this kustomize package.
+# It should be run by config/default
+resources:
+- bases/controlplane.cluster.x.k8s.io_nestedcontrolplanes.yaml
+# +kubebuilder:scaffold:crdkustomizeresource
+
+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_nestedcontrolplanes.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_nestedcontrolplanes.yaml
+# +kubebuilder:scaffold:crdkustomizecainjectionpatch
+
+# the following config is for teaching kustomize how to do kustomization for CRDs.
+configurations:
+- kustomizeconfig.yaml

config/crd/kustomizeconfig.yaml

@@ -0,0 +1,17 @@
+# This file is for teaching kustomize how to substitute name and namespace reference in CRD
+nameReference:
+- kind: Service
+  version: v1
+  fieldSpecs:
+  - kind: CustomResourceDefinition
+    group: apiextensions.k8s.io
+    path: spec/conversion/webhookClientConfig/service/name
+
+namespace:
+- kind: CustomResourceDefinition
+  group: apiextensions.k8s.io
+  path: spec/conversion/webhookClientConfig/service/namespace
+  create: false
+
+varReference:
+- path: metadata/annotations

config/crd/patches/cainjection_in_nestedcontrolplanes.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/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    cert-manager.io/inject-ca-from: $(CERTIFICATE_NAMESPACE)/$(CERTIFICATE_NAME)
+  name: nestedcontrolplanes.controlplane.cluster.x.k8s.io