update

api/v1alpha1/appservice_types.go

@@ -31,7 +31,7 @@ type AppServiceSpec struct {
 	// Important: Run "make" to regenerate code after modifying this file
 
 	// Foo is an example field of AppService. Edit appservice_types.go to remove/update
-	Size     int32                `json:"size"`
+	Size     *int32               `json:"size"`
 	Image    string               `json:"image"`
 	Resource *Resources           `json:"resource,omitempty"`
 	Envs     []corev1.EnvVar      `json:"envs,omitempty"`

api/v1alpha1/zz_generated.deepcopy.go

@@ -88,6 +88,11 @@ func (in *AppServiceList) DeepCopyObject() runtime.Object {
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *AppServiceSpec) DeepCopyInto(out *AppServiceSpec) {
 	*out = *in
+	if in.Size != nil {
+		in, out := &in.Size, &out.Size
+		*out = new(int32)
+		**out = **in
+	}
 	if in.Resource != nil {
 		in, out := &in.Resource, &out.Resource
 		*out = new(Resources)

controllers/appservice_controller.go

@@ -18,13 +18,20 @@ package controllers
 
 import (
 	"context"
+	"encoding/json"
+	appv1alpha1 "git.treesir.pub/cdryzun/operator-demo/api/v1alpha1"
+	"reflect"
 
+	appsv1 "k8s.io/api/apps/v1"
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
 	ctrl "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/log"
-
-	apptreesirpubv1alpha1 "git.treesir.pub/cdryzun/operator-demo/api/v1alpha1"
+	"sigs.k8s.io/controller-runtime/pkg/reconcile"
 )
 
 // AppServiceReconciler reconciles a AppService object
@@ -47,11 +54,90 @@ type AppServiceReconciler struct {
 // For more details, check Reconcile and its Result here:
 // - https://pkg.go.dev/sigs.k8s.io/controller-runtime@v0.14.1/pkg/reconcile
 func (r *AppServiceReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
-	_ = log.FromContext(ctx)
+	reqLogger := log.Log.WithValues("Request.Namespace", req.Namespace, "Request.Name", req.Name)
+	reqLogger.Info("Reconciling AppService")
 
-	// TODO(user): your logic here
+	// Fetch the AppService instance
+	instance := &appv1alpha1.AppService{}
+	err := r.Get(context.TODO(), req.NamespacedName, instance)
+	if err != nil {
+		if errors.IsNotFound(err) {
+			// Request object not found, could have been deleted after reconcile request.
+			// Owned objects are automatically garbage collected. For additional cleanup logic use finalizers.
+			// Return and don't requeue
+			return ctrl.Result{}, nil
+		}
+		// Error reading the object - requeue the request.
+		return ctrl.Result{}, err
+	}
 
-	return ctrl.Result{}, nil
+	if instance.DeletionTimestamp != nil {
+		return ctrl.Result{}, err
+	}
+
+	// 如果不存在，则创建关联资源
+	// 如果存在，判断是否需要更新
+	// 如果需要更新，则直接更新
+	// 如果不需要更新，则正常返回
+
+	deploy := &appsv1.Deployment{}
+	if err := r.Get(context.TODO(), req.NamespacedName, deploy); err != nil && errors.IsNotFound(err) {
+		// 创建关联资源
+		// 1. 创建 Deploy
+		deploy := NewDeploy(instance)
+		if err := r.Create(context.TODO(), deploy); err != nil {
+			return ctrl.Result{}, err
+		}
+		// 2. 创建 Service
+		service := NewService(instance)
+		if err := r.Create(context.TODO(), service); err != nil {
+			return ctrl.Result{}, err
+		}
+		// 3. 关联 Annotations
+		data, _ := json.Marshal(instance.Spec)
+		if instance.Annotations != nil {
+			instance.Annotations["spec"] = string(data)
+		} else {
+			instance.Annotations = map[string]string{"spec": string(data)}
+		}
+
+		if err := r.Update(context.TODO(), instance); err != nil {
+			return ctrl.Result{}, nil
+		}
+		return ctrl.Result{}, nil
+	}
+
+	oldspec := appv1alpha1.AppServiceSpec{}
+	if err := json.Unmarshal([]byte(instance.Annotations["spec"]), &oldspec); err != nil {
+		return ctrl.Result{}, err
+	}
+
+	if !reflect.DeepEqual(instance.Spec, oldspec) {
+		// 更新关联资源
+		newDeploy := NewDeploy(instance)
+		oldDeploy := &appsv1.Deployment{}
+		if err := r.Get(context.TODO(), req.NamespacedName, oldDeploy); err != nil {
+			return ctrl.Result{}, err
+		}
+		oldDeploy.Spec = newDeploy.Spec
+		if err := r.Update(context.TODO(), oldDeploy); err != nil {
+			return ctrl.Result{}, err
+		}
+
+		newService := NewService(instance)
+		oldService := &corev1.Service{}
+		if err := r.Get(context.TODO(), req.NamespacedName, oldService); err != nil {
+			return ctrl.Result{}, err
+		}
+		oldService.Spec = newService.Spec
+		if err := r.Update(context.TODO(), oldService); err != nil {
+			return ctrl.Result{}, err
+		}
+
+		return ctrl.Result{}, nil
+	}
+
+	return reconcile.Result{}, nil
 }
 
 // SetupWithManager sets up the controller with the Manager.
@@ -60,3 +146,87 @@ func (r *AppServiceReconciler) SetupWithManager(mgr ctrl.Manager) error {
 		For(&apptreesirpubv1alpha1.AppService{}).
 		Complete(r)
 }
+
+func NewDeploy(app *appv1alpha1.AppService) *appsv1.Deployment {
+	labels := map[string]string{"app": app.Name}
+	selector := &metav1.LabelSelector{MatchLabels: labels}
+	return &appsv1.Deployment{
+		TypeMeta: metav1.TypeMeta{
+			APIVersion: "apps/v1",
+			Kind:       "Deployment",
+		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      app.Name,
+			Namespace: app.Namespace,
+
+			OwnerReferences: []metav1.OwnerReference{
+				*metav1.NewControllerRef(app, schema.GroupVersionKind{
+					Group:   appsv1.SchemeGroupVersion.Group,
+					Version: appsv1.SchemeGroupVersion.Version,
+					Kind:    "AppService",
+				}),
+			},
+		},
+		Spec: appsv1.DeploymentSpec{
+			Replicas: app.Spec.Size,
+			Template: corev1.PodTemplateSpec{
+				ObjectMeta: metav1.ObjectMeta{
+					Labels: labels,
+				},
+				Spec: corev1.PodSpec{
+					Containers: newContainers(app),
+				},
+			},
+			Selector: selector,
+		},
+	}
+}
+
+func newContainers(app *appv1alpha1.AppService) []corev1.Container {
+	var containerPorts []corev1.ContainerPort
+	for _, svcPort := range app.Spec.Ports {
+		cport := corev1.ContainerPort{}
+		cport.ContainerPort = svcPort.TargetPort.IntVal
+		containerPorts = append(containerPorts, cport)
+	}
+	return []corev1.Container{
+		{
+			Name:  app.Name,
+			Image: app.Spec.Image,
+			Resources: corev1.ResourceRequirements{
+				Requests: app.Spec.Resources.Requests,
+				Limits:   app.Spec.Resources.Limits,
+			},
+			Ports:           containerPorts,
+			ImagePullPolicy: corev1.PullIfNotPresent,
+			Env:             app.Spec.Envs,
+		},
+	}
+}
+
+func NewService(app *appv1alpha1.AppService) *corev1.Service {
+	return &corev1.Service{
+		TypeMeta: metav1.TypeMeta{
+			Kind:       "Service",
+			APIVersion: "v1",
+		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      app.Name,
+			Namespace: app.Namespace,
+			OwnerReferences: []metav1.OwnerReference{
+				*metav1.NewControllerRef(app, schema.GroupVersionKind{
+					Group:   appsv1.SchemeGroupVersion.Group,
+					Version: appsv1.SchemeGroupVersion.Version,
+					Kind:    "AppService",
+				}),
+			},
+		},
+		Spec: corev1.ServiceSpec{
+			Type:  corev1.ServiceTypeNodePort,
+			Ports: app.Spec.Ports,
+			Selector: map[string]string{
+				"app": app.Name,
+			},
+		},
+	}
+}

go.mod

@@ -5,6 +5,7 @@ go 1.19
 require (
 	github.com/onsi/ginkgo/v2 v2.6.0
 	github.com/onsi/gomega v1.24.1
+	k8s.io/api v0.26.0
 	k8s.io/apimachinery v0.26.0
 	k8s.io/client-go v0.26.0
 	sigs.k8s.io/controller-runtime v0.14.1
@@ -58,7 +59,6 @@ require (
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	k8s.io/api v0.26.0 // indirect
 	k8s.io/apiextensions-apiserver v0.26.0 // indirect
 	k8s.io/component-base v0.26.0 // indirect
 	k8s.io/klog/v2 v2.80.1 // indirect