ResourceReconciler

ResourceReconciler reconciles a single Kubernetes object against the API Server.

It creates the object if it doesn't exist or removes it in case its desired state is absent.

It uses the ObjectMatcher library to be able to tell if an already existing object needs to be updated or not.

It depends on logr logger and the controller-runtime client that is available in a typical kubebuilder or operator-sdk project.

Example:

package main

import (
	corev1 "k8s.io/api/core/v1"
	github.com/go-logr/logr
	"github.com/banzaicloud/operator-tools/pkg/reconciler"
	runtimeClient "sigs.k8s.io/controller-runtime/pkg/client"
)

func example(client runtimeClient.Client, logger logr.Logger) {
  resourceReconciler := reconciler.NewReconcilerWith(client, reconciler.WithLog(logger))
  
  serviceObject := &corev1.Service{
    Spec: corev1.ServiceSpec{
      ...
    },
  }
  
  result, err := resourceReconciler.ReconcileResource(serviceObject, reconciler.StatePresent)
}