fix log levels

Author: sbueringer

internal/controllers/machine/drain/drain.go

@@ -189,14 +189,14 @@ func (d *Helper) EvictPods(ctx context.Context, podDeleteList *PodDeleteList) Ev
 			log = log.WithValues("reason", pd.Status.Message)
 		}
 
-		log.V(3).Info("Skip evicting Pod because it should be ignored")
+		log.V(4).Info("Skip evicting Pod because it should be ignored")
 		res.PodsIgnored = append(res.PodsIgnored, pd.Pod)
 	}
 
 	for _, pd := range podsWithDeletionTimestamp {
 		log := ctrl.LoggerFrom(ctx, "Pod", klog.KObj(pd.Pod))
 
-		log.V(3).Info("Skip triggering Pod eviction because it already has a deletionTimestamp")
+		log.V(4).Info("Skip triggering Pod eviction because it already has a deletionTimestamp")
 		res.PodsDeletionTimestampSet = append(res.PodsDeletionTimestampSet, pd.Pod)
 	}
 
@@ -212,22 +212,22 @@ evictionLoop:
 		case <-ctx.Done():
 			// Skip eviction if the eviction timeout is reached.
 			err := fmt.Errorf("eviction timeout of %s reached, eviction will be retried", evictionTimeout)
-			log.Error(err, "Error when evicting Pod")
+			log.V(4).Error(err, "Error when evicting Pod")
 			res.PodsFailedEviction[err.Error()] = append(res.PodsFailedEviction[err.Error()], pd.Pod)
 			continue evictionLoop
 		default:
 		}
 
-		log.Info("Evicting Pod")
+		log.V(4).Info("Evicting Pod")
 
 		err := d.evictPod(ctx, pd.Pod)
 		switch {
 		case err == nil:
-			log.Info("Pod eviction successfully triggered")
+			log.V(4).Info("Pod eviction successfully triggered")
 			res.PodsDeletionTimestampSet = append(res.PodsDeletionTimestampSet, pd.Pod)
 		case apierrors.IsNotFound(err):
 			// Pod doesn't exist anymore as it has been deleted in the meantime.
-			log.Info("Eviction not needed, Pod doesn't exist anymore")
+			log.V(4).Info("Eviction not needed, Pod doesn't exist anymore")
 			res.PodsNotFound = append(res.PodsNotFound, pd.Pod)
 		case apierrors.IsTooManyRequests(err):
 			var statusError *apierrors.StatusError
@@ -247,17 +247,17 @@ evictionLoop:
 				err = errors.New(errorMessage)
 			}
 
-			log.Error(err, "Error when evicting Pod")
+			log.V(4).Error(err, "Error when evicting Pod")
 			res.PodsFailedEviction[err.Error()] = append(res.PodsFailedEviction[err.Error()], pd.Pod)
 		case apierrors.IsForbidden(err) && apierrors.HasStatusCause(err, corev1.NamespaceTerminatingCause):
 			// Creating an eviction resource in a terminating namespace will throw a forbidden error, e.g.:
 			// "pods "pod-6-to-trigger-eviction-namespace-terminating" is forbidden: unable to create new content in namespace test-namespace because it is being terminated"
 			// The kube-controller-manager is supposed to set the deletionTimestamp on the Pod and then this error will go away.
 			msg := "Cannot evict pod from terminating namespace: unable to create eviction (kube-controller-manager should set deletionTimestamp)"
-			log.Error(err, msg)
+			log.V(4).Error(err, msg)
 			res.PodsFailedEviction[msg] = append(res.PodsFailedEviction[msg], pd.Pod)
 		default:
-			log.Error(err, "Error when evicting Pod")
+			log.V(4).Error(err, "Error when evicting Pod")
 			res.PodsFailedEviction[err.Error()] = append(res.PodsFailedEviction[err.Error()], pd.Pod)
 		}
 	}