✨ Add IPAddress and IPAddressClaim CRs to Experimental API

Makefile

@@ -222,6 +222,8 @@ generate-manifests-core: $(CONTROLLER_GEN) $(KUSTOMIZE) ## Generate manifests e.
 		paths=./$(EXP_DIR)/internal/controllers/... \
 		paths=./$(EXP_DIR)/addons/api/... \
 		paths=./$(EXP_DIR)/addons/internal/controllers/... \
+		paths=./$(EXP_DIR)/ipam/api/... \
+		paths=./$(EXP_DIR)/ipam/internal/webhooks/... \
 		paths=./$(EXP_DIR)/runtime/api/... \
 		paths=./$(EXP_DIR)/runtime/internal/controllers/... \
 		crd:crdVersions=v1 \
@@ -288,6 +290,7 @@ generate-go-deepcopy-core: $(CONTROLLER_GEN) ## Generate deepcopy go code for co
 		paths=./api/... \
 		paths=./$(EXP_DIR)/api/... \
 		paths=./$(EXP_DIR)/addons/api/... \
+		paths=./$(EXP_DIR)/ipam/api/... \
 		paths=./$(EXP_DIR)/runtime/api/... \
 		paths=./$(EXP_DIR)/runtime/hooks/api/... \
 		paths=./internal/runtime/test/... \

config/crd/bases/ipam.cluster.x-k8s.io_ipaddressclaims.yaml

@@ -0,0 +1,137 @@
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.9.1
+  creationTimestamp: null
+  name: ipaddressclaims.ipam.cluster.x-k8s.io
+spec:
+  group: ipam.cluster.x-k8s.io
+  names:
+    categories:
+    - cluster-api
+    kind: IPAddressClaim
+    listKind: IPAddressClaimList
+    plural: ipaddressclaims
+    singular: ipaddressclaim
+  scope: Namespaced
+  versions:
+  - additionalPrinterColumns:
+    - description: Name of the pool to allocate an address from
+      jsonPath: .spec.poolRef.name
+      name: Pool Name
+      type: string
+    - description: Kind of the pool to allocate an address from
+      jsonPath: .spec.poolRef.kind
+      name: Pool Kind
+      type: string
+    name: v1alpha1
+    schema:
+      openAPIV3Schema:
+        description: IPAddressClaim is the Schema for the ipaddressclaim 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: IPAddressClaimSpec is the desired state of an IPAddressClaim.
+            properties:
+              poolRef:
+                description: PoolRef is a reference to the pool from which an IP address
+                  should be created.
+                properties:
+                  apiGroup:
+                    description: APIGroup is the group for the resource being referenced.
+                      If APIGroup is not specified, the specified Kind must be in
+                      the core API group. For any other third-party types, APIGroup
+                      is required.
+                    type: string
+                  kind:
+                    description: Kind is the type of resource being referenced
+                    type: string
+                  name:
+                    description: Name is the name of resource being referenced
+                    type: string
+                required:
+                - apiGroup
+                - kind
+                - name
+                type: object
+            required:
+            - poolRef
+            type: object
+          status:
+            description: IPAddressClaimStatus is the observed status of a IPAddressClaim.
+            properties:
+              addressRef:
+                description: AddressRef is a reference to the address that was created
+                  for this claim.
+                properties:
+                  name:
+                    description: 'Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
+                      TODO: Add other useful fields. apiVersion, kind, uid?'
+                    type: string
+                type: object
+              conditions:
+                description: Conditions summarises the current state of the IPAddressClaim
+                items:
+                  description: Condition defines an observation of a Cluster API resource
+                    operational state.
+                  properties:
+                    lastTransitionTime:
+                      description: Last time the condition transitioned from one status
+                        to another. This should be when the underlying condition changed.
+                        If that is not known, then using the time when the API field
+                        changed is acceptable.
+                      format: date-time
+                      type: string
+                    message:
+                      description: A human readable message indicating details about
+                        the transition. This field may be empty.
+                      type: string
+                    reason:
+                      description: The reason for the condition's last transition
+                        in CamelCase. The specific API may choose whether or not this
+                        field is considered a guaranteed API. This field may not be
+                        empty.
+                      type: string
+                    severity:
+                      description: Severity provides an explicit classification of
+                        Reason code, so the users or machines can immediately understand
+                        the current situation and act accordingly. The Severity field
+                        MUST be set only when Status=False.
+                      type: string
+                    status:
+                      description: Status of the condition, one of True, False, Unknown.
+                      type: string
+                    type:
+                      description: Type of condition in CamelCase or in foo.example.com/CamelCase.
+                        Many .condition.type values are consistent across resources
+                        like Available, but because arbitrary conditions can be useful
+                        (see .node.status.conditions), the ability to deconflict is
+                        important.
+                      type: string
+                  required:
+                  - lastTransitionTime
+                  - status
+                  - type
+                  type: object
+                type: array
+            required:
+            - addressRef
+            type: object
+        type: object
+    served: true
+    storage: true
+    subresources:
+      status: {}

config/crd/bases/ipam.cluster.x-k8s.io_ipaddresses.yaml

@@ -0,0 +1,103 @@
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.9.1
+  creationTimestamp: null
+  name: ipaddresses.ipam.cluster.x-k8s.io
+spec:
+  group: ipam.cluster.x-k8s.io
+  names:
+    categories:
+    - cluster-api
+    kind: IPAddress
+    listKind: IPAddressList
+    plural: ipaddresses
+    singular: ipaddress
+  scope: Namespaced
+  versions:
+  - additionalPrinterColumns:
+    - description: Address
+      jsonPath: .spec.address
+      name: Address
+      type: string
+    - description: Name of the pool the address is from
+      jsonPath: .spec.poolRef.name
+      name: Pool Name
+      type: string
+    - description: Kind of the pool the address is from
+      jsonPath: .spec.poolRef.kind
+      name: Pool Kind
+      type: string
+    name: v1alpha1
+    schema:
+      openAPIV3Schema:
+        description: IPAddress is the Schema for the ipaddress 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: IPAddressSpec is the desired state of an IPAddress.
+            properties:
+              address:
+                description: Address is the IP address.
+                type: string
+              claimRef:
+                description: ClaimRef is a reference to the claim this IPAddress was
+                  created for.
+                properties:
+                  name:
+                    description: 'Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names
+                      TODO: Add other useful fields. apiVersion, kind, uid?'
+                    type: string
+                type: object
+              gateway:
+                description: Gateway is the network gateway of the network the address
+                  is from.
+                type: string
+              poolRef:
+                description: PoolRef is a reference to the pool that this IPAddress
+                  was created from.
+                properties:
+                  apiGroup:
+                    description: APIGroup is the group for the resource being referenced.
+                      If APIGroup is not specified, the specified Kind must be in
+                      the core API group. For any other third-party types, APIGroup
+                      is required.
+                    type: string
+                  kind:
+                    description: Kind is the type of resource being referenced
+                    type: string
+                  name:
+                    description: Name is the name of resource being referenced
+                    type: string
+                required:
+                - apiGroup
+                - kind
+                - name
+                type: object
+              prefix:
+                description: Prefix is the prefix of the address.
+                type: integer
+            required:
+            - address
+            - claimRef
+            - gateway
+            - poolRef
+            - prefix
+            type: object
+        type: object
+    served: true
+    storage: true
+    subresources: {}

config/crd/kustomization.yaml

@@ -12,6 +12,8 @@ resources:
 - bases/addons.cluster.x-k8s.io_clusterresourcesetbindings.yaml
 - bases/cluster.x-k8s.io_machinehealthchecks.yaml
 - bases/runtime.cluster.x-k8s.io_extensionconfigs.yaml
+- bases/ipam.cluster.x-k8s.io_ipaddresses.yaml
+- bases/ipam.cluster.x-k8s.io_ipaddressclaims.yaml
 # +kubebuilder:scaffold:crdkustomizeresource
 
 patchesStrategicMerge:

config/rbac/role.yaml

@@ -290,6 +290,14 @@ rules:
   - list
   - patch
   - watch
+- apiGroups:
+  - ipam.cluster.x-k8s.io
+  resources:
+  - ipaddressclaims
+  verbs:
+  - get
+  - list
+  - watch
 - apiGroups:
   - runtime.cluster.x-k8s.io
   resources:

config/webhook/manifests.yaml

@@ -410,3 +410,49 @@ webhooks:
     resources:
     - clusterresourcesets
   sideEffects: None
+- admissionReviewVersions:
+  - v1
+  - v1beta1
+  clientConfig:
+    service:
+      name: webhook-service
+      namespace: system
+      path: /validate-ipam-cluster-x-k8s-io-v1alpha1-ipaddress
+  failurePolicy: Fail
+  matchPolicy: Equivalent
+  name: validation.ipaddress.ipam.cluster.x-k8s.io
+  rules:
+  - apiGroups:
+    - ipam.cluster.x-k8s.io
+    apiVersions:
+    - v1alpha1
+    operations:
+    - CREATE
+    - UPDATE
+    - DELETE
+    resources:
+    - ipaddresses
+  sideEffects: None
+- admissionReviewVersions:
+  - v1
+  - v1beta1
+  clientConfig:
+    service:
+      name: webhook-service
+      namespace: system
+      path: /validate-ipam-cluster-x-k8s-io-v1alpha1-ipaddressclaim
+  failurePolicy: Fail
+  matchPolicy: Equivalent
+  name: validation.ipaddressclaim.ipam.cluster.x-k8s.io
+  rules:
+  - apiGroups:
+    - ipam.cluster.x-k8s.io
+    apiVersions:
+    - v1alpha1
+    operations:
+    - CREATE
+    - UPDATE
+    - DELETE
+    resources:
+    - ipaddressclaims
+  sideEffects: None

exp/api/v1beta1/doc.go

@@ -14,4 +14,5 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+// Package v1beta1 contains experimental v1beta1 API implementation.
 package v1beta1

exp/ipam/api/v1alpha1/doc.go

@@ -0,0 +1,18 @@
+/*
+Copyright 2022 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 contains API Schema definitions for the exp v1alpha1 IPAM API.
+package v1alpha1

exp/ipam/api/v1alpha1/groupversion_info.go

@@ -0,0 +1,36 @@
+/*
+Copyright 2022 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.
+*/
+
+// +kubebuilder:object:generate=true
+// +groupName=ipam.cluster.x-k8s.io
+
+package v1alpha1
+
+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: "ipam.cluster.x-k8s.io", Version: "v1alpha1"}
+
+	// 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
+)