add operator

pkg/controllers/services.go

@@ -0,0 +1,56 @@
+package controllers
+
+import (
+	"context"
+
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/errors"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/controller"
+	"sigs.k8s.io/controller-runtime/pkg/handler"
+	"sigs.k8s.io/controller-runtime/pkg/source"
+)
+
+// ServiceReconciler reconciles Service
+type ServiceReconciler struct {
+	client client.Client
+}
+
+//+kubebuilder:rbac:groups="",resources=services,verbs=get;list;watch;
+
+func (r *ServiceReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
+	l := ctrl.LoggerFrom(ctx)
+
+	var svc corev1.Service
+	err := r.client.Get(ctx, req.NamespacedName, &svc)
+	if errors.IsNotFound(err) {
+		return ctrl.Result{}, nil
+	}
+
+	l.Info("got svc")
+	return ctrl.Result{}, nil
+}
+
+func (r *ServiceReconciler) InjectClient(c client.Client) error {
+	r.client = c
+	return nil
+}
+
+func NewService(mgr ctrl.Manager) error {
+	r := &ServiceReconciler{}
+
+	c, err := controller.NewUnmanaged("Services", mgr, controller.Options{
+		Reconciler: r, RecoverPanic: true,
+	})
+	if err != nil {
+		return err
+	}
+
+	if err = c.Watch(&source.Kind{Type: &corev1.Service{}},
+		&handler.EnqueueRequestForObject{}); err != nil {
+		return err
+	}
+
+	return mgr.Add(c)
+}