stijndehaes

func HashEvent(event interface{}) (string, error) {
	eventJson, err := json.Marshal(event)
	if err != nil {
		return "", err
	}
	h := sha256.New()
	h.Write(eventJson)
	return fmt.Sprintf("%x", h.Sum(nil)), nil
}

stijndehaes

func (r *NotebookReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
	... Your reconcilitaion
	if err != nil {
		r.Recorder.Event(&notebook, "Warning", "ErrorOccurred", err.Error())
	}
	return result, err
}

stijndehaes

import (
 "context"
 
 apierrors "k8s.io/apimachinery/pkg/api/errors"
 "k8s.io/apimachinery/pkg/util/wait"
 "k8s.io/client-go/util/retry"
 "sigs.k8s.io/controller-runtime/pkg/client"
 "sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
)