add root package docs

cmd/virtual-kubelet/root/root.go

@@ -12,11 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// Package root provides methods to build and start the virtual-kubelet.
 package root
 
 import (
 	"context"
-	"fmt"
 	"os"
 	"path"
 	"time"
@@ -37,7 +37,6 @@ import (
 	"k8s.io/client-go/util/workqueue"
 	"k8s.io/klog"
 
-	"github.com/liqotech/liqo/apis/sharing/v1alpha1"
 	"github.com/liqotech/liqo/cmd/virtual-kubelet/provider"
 	"github.com/liqotech/liqo/internal/utils/errdefs"
 	crdclient "github.com/liqotech/liqo/pkg/crdClient"
@@ -278,25 +277,6 @@ func runRootCommand(ctx context.Context, s *provider.Store, c *Opts) error {
 	return nil
 }
 
-func createOwnerReference(c *crdclient.CRDClient, advName, namespace string) []metav1.OwnerReference {
-	d, err := c.Resource("advertisements").Namespace(namespace).Get(advName, &metav1.GetOptions{})
-	if err != nil {
-		if k8serrors.IsNotFound(err) {
-			klog.Info("advertisement not found, setting empty owner reference")
-		}
-		return []metav1.OwnerReference{}
-	}
-
-	return []metav1.OwnerReference{
-		{
-			APIVersion: fmt.Sprintf("%s/%s", v1alpha1.GroupVersion.Group, v1alpha1.GroupVersion.Version),
-			Kind:       "Advertisement",
-			Name:       advName,
-			UID:        d.(metav1.Object).GetUID(),
-		},
-	}
-}
-
 // newPodControllerWorkqueueRateLimiter returns a new custom rate limiter to be assigned to the pod controller workqueues.
 // Differently from the standard workqueue.DefaultControllerRateLimiter(), composed of an overall bucket rate limiter
 // and a per-item exponential rate limiter to address failures, this includes only the latter component. Hance avoiding