sidecar: add annotations to csiaddonsnode object

This commit modifies sidecar code to
set the createdByPodUID and lastUpdatedAt annotations
to track which pod created this csiaddonsnode object,
when it was created. It also triggers a reconcile
for the controller to reconnect to the sidecar.

Signed-off-by: Rakshith R <rar@redhat.com>

Author: Rakshith-R

sidecar/internal/csiaddonsnode/csiaddonsnode.go

@@ -147,6 +147,16 @@ func (mgr *Manager) newCSIAddonsNode(node *csiaddonsv1alpha1.CSIAddonsNode) erro
 		node.Spec.DeepCopyInto(&csiaddonNode.Spec)
 		// set the ownerReferences
 		csiaddonNode.OwnerReferences = node.OwnerReferences
+		if csiaddonNode.Annotations == nil {
+			csiaddonNode.Annotations = make(map[string]string)
+		}
+		// Set the createdByPodUID and lastUpdatedAt annotations
+		// to track which pod created this csiaddonsnode object,
+		// when it was created. It also triggers a reconcile
+		// for the controller to reconnect to the sidecar.
+		annotationPrefix := "sidecar." + csiaddonsv1alpha1.GroupVersion.Group
+		csiaddonNode.Annotations[annotationPrefix+"/createdByPodUID"] = mgr.PodUID
+		csiaddonNode.Annotations[annotationPrefix+"/lastUpdatedAt"] = time.Now().Format(time.RFC3339)
 		return nil
 	})