return nil, nil, fmt.Errorf("check minimum supported Kubernetes version: %v", err)
	}
	return kubeClient, client, nil
}

// applyOptions contains the startup options for applying the manifest.
type applyOptions struct {
	// Path to the kubeconfig file.
	Kubeconfig string
	// ComponentName of the kubeconfig context to use.
	Context string

#### CRD Watcher

For watches against custom types (CRDs), we want to gracefully handle missing CRDs. Naively starting informers against the missing types would result in errors and blocking startup. Instead, we introduce a "CRD Watcher" component that watches the CRDs in the cluster to determine if they are available or not.

This is consumed in two ways:

* Ability to serially process updates received from a variety of different sources. This avoids need for other synchronization mechanisms like mutexes.
* Correctness at startup; with the sequencing above, items are only processed once all informers are synced. This means queries will not return stale data at startup.
* Deduping of identical events
* Automatic retrying of failed events (configurable)