Feature/cpu autoscaling

Makefile

@@ -158,6 +158,10 @@ build: generate fmt vet ## Build manager binary.
 run: manifests generate fmt vet ## Run a controller from your host.
 	go run ./cmd/main.go
 
+.PHONY: debug
+debug: manifests build
+	dlv --listen=:2345 --headless=true --api-version=2 exec ./bin/manager -- --config=./config/manager/controller_manager_config.yaml
+
 .PHONY: docker-build
 docker-build: ## Build docker image with the manager.
 	docker buildx build --build-arg VERSION=${VERSION} -t ${IMG} . --load

PROJECT

@@ -1,3 +1,7 @@
+# Code generated by tool. DO NOT EDIT.
+# This file is used to track the info used to scaffold your project
+# and allow the plugins properly work.
+# More info: https://book.kubebuilder.io/reference/project-config.html
 domain: cassandra.datastax.com
 layout:
 - go.kubebuilder.io/v4-alpha
@@ -29,4 +33,13 @@ resources:
   kind: CassandraTask
   path: github.com/k8ssandra/cass-operator/apis/control/v1alpha1
   version: v1alpha1
+- api:
+    crdVersion: v1
+    namespaced: true
+  controller: true
+  domain: cassandra.datastax.com
+  group: cassandra.datastax.com
+  kind: CassandraDataCenterAutoscaler
+  path: github.com/k8ssandra/cass-operator/api/cassandra.datastax.com/v1beta1
+  version: v1beta1
 version: "3"

apis/autoscaling/v1beta1/cassandradatacenterautoscaler_types.go

@@ -0,0 +1,64 @@
+/*
+Copyright 2023.
+
+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 v1beta1
+
+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.
+
+// CassandraDataCenterAutoscalerSpec defines the desired state of CassandraDataCenterAutoscaler
+type CassandraDataCenterAutoscalerSpec struct {
+	// INSERT ADDITIONAL SPEC FIELDS - desired state of cluster
+	// Important: Run "make" to regenerate code after modifying this file
+	CassandraDatacenterRef string `json:"cassandraDatacenterRef,omitempty"`
+	// Foo is an example field of CassandraDataCenterAutoscaler. Edit cassandradatacenterautoscaler_types.go to remove/update
+	Foo string `json:"foo,omitempty"`
+}
+
+// CassandraDataCenterAutoscalerStatus defines the observed state of CassandraDataCenterAutoscaler
+type CassandraDataCenterAutoscalerStatus 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
+
+// CassandraDataCenterAutoscaler is the Schema for the cassandradatacenterautoscalers API
+type CassandraDataCenterAutoscaler struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   CassandraDataCenterAutoscalerSpec   `json:"spec,omitempty"`
+	Status CassandraDataCenterAutoscalerStatus `json:"status,omitempty"`
+}
+
+//+kubebuilder:object:root=true
+
+// CassandraDataCenterAutoscalerList contains a list of CassandraDataCenterAutoscaler
+type CassandraDataCenterAutoscalerList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []CassandraDataCenterAutoscaler `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&CassandraDataCenterAutoscaler{}, &CassandraDataCenterAutoscalerList{})
+}

apis/autoscaling/v1beta1/groupversion_info.go

@@ -0,0 +1,36 @@
+/*
+Copyright 2023.
+
+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 v1beta1 contains API Schema definitions for the cassandra.datastax.com v1beta1 API group
+// +kubebuilder:object:generate=true
+// +groupName=cassandra.datastax.com.cassandra.datastax.com
+package v1beta1
+
+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: "cassandra.datastax.com.cassandra.datastax.com", Version: "v1beta1"}
+
+	// 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
+)

cmd/main.go

@@ -18,6 +18,8 @@ package main
 
 import (
 	"flag"
+	cassandradatastaxcomv1beta1 "github.com/k8ssandra/cass-operator/apis/autoscaling/v1beta1"
+	cassandradatastaxcomcontroller "github.com/k8ssandra/cass-operator/internal/controllers/autoscaling"
 	"os"
 	"strings"
 
@@ -55,6 +57,7 @@ func init() {
 	utilruntime.Must(api.AddToScheme(scheme))
 	utilruntime.Must(configv1beta1.AddToScheme(scheme))
 	utilruntime.Must(controlv1alpha1.AddToScheme(scheme))
+	utilruntime.Must(cassandradatastaxcomv1beta1.AddToScheme(scheme))
 	//+kubebuilder:scaffold:scheme
 }
 
@@ -124,19 +127,28 @@ func main() {
 		os.Exit(1)
 	}
 
-	if !operConfig.DisableWebhooks {
-		if err = (&api.CassandraDatacenter{}).SetupWebhookWithManager(mgr); err != nil {
-			setupLog.Error(err, "unable to create webhook", "webhook", "CassandraDatacenter")
-			os.Exit(1)
+	/*
+		if !operConfig.DisableWebhooks {
+			if err = (&api.CassandraDatacenter{}).SetupWebhookWithManager(mgr); err != nil {
+				setupLog.Error(err, "unable to create webhook", "webhook", "CassandraDatacenter")
+				os.Exit(1)
+			}
 		}
-	}
+	*/
 	if err = (&controlcontrollers.CassandraTaskReconciler{
 		Client: mgr.GetClient(),
 		Scheme: mgr.GetScheme(),
 	}).SetupWithManager(mgr); err != nil {
 		setupLog.Error(err, "unable to create controller", "controller", "CassandraTask")
 		os.Exit(1)
 	}
+	if err = (&cassandradatastaxcomcontroller.CassandraDataCenterAutoscalerReconciler{
+		Client: mgr.GetClient(),
+		Scheme: mgr.GetScheme(),
+	}).SetupWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create controller", "controller", "CassandraDataCenterAutoscaler")
+		os.Exit(1)
+	}
 	//+kubebuilder:scaffold:builder
 
 	if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil {

config/crd/bases/cassandra.datastax.com.cassandra.datastax.com_cassandradatacenterautoscalers.yaml

@@ -0,0 +1,56 @@
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.12.0
+  name: cassandradatacenterautoscalers.cassandra.datastax.com.cassandra.datastax.com
+spec:
+  group: cassandra.datastax.com.cassandra.datastax.com
+  names:
+    kind: CassandraDataCenterAutoscaler
+    listKind: CassandraDataCenterAutoscalerList
+    plural: cassandradatacenterautoscalers
+    singular: cassandradatacenterautoscaler
+  scope: Namespaced
+  versions:
+  - name: v1beta1
+    schema:
+      openAPIV3Schema:
+        description: CassandraDataCenterAutoscaler is the Schema for the cassandradatacenterautoscalers
+          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: CassandraDataCenterAutoscalerSpec defines the desired state
+              of CassandraDataCenterAutoscaler
+            properties:
+              cassandraDatacenterRef:
+                description: 'INSERT ADDITIONAL SPEC FIELDS - desired state of cluster
+                  Important: Run "make" to regenerate code after modifying this file'
+                type: string
+              foo:
+                description: Foo is an example field of CassandraDataCenterAutoscaler.
+                  Edit cassandradatacenterautoscaler_types.go to remove/update
+                type: string
+            type: object
+          status:
+            description: CassandraDataCenterAutoscalerStatus defines the observed
+              state of CassandraDataCenterAutoscaler
+            type: object
+        type: object
+    served: true
+    storage: true
+    subresources:
+      status: {}