I am using the kubernetes operator to create a custom resource in the cluster, the CR has the Status
field populated, but when the object gets created the Status
field is empty.
This is how I am creating the CR:
reconcile.Create(ctx, &object)
This is what I am trying to accomplish with k8s operator:
The architecture of Kubernetes API and resources follows a pattern.
Clients may create resources, by specifying a desired state (This is the spec:
part of a resource). This is a "create" request sent to the API Server.
Controllers, subscribe/watch to changes of resources, while doing actions in a reconciliation loop, they might update the Status of the resource (this is the status:
part of the resource).
For an example of how a controller is implemented and updates the status, see the Kubebuilder book: Implementing a Controller - Update the Status.
The client in the example is a "controller runtime client":
"sigs.k8s.io/controller-runtime/pkg/client"
Example code, where the reconciler updates the status
sub-resource:
if err := r.Status().Update(ctx, &cronJob); err != nil {
log.Error(err, "unable to update CronJob status")
return ctrl.Result{}, err
}