internal: add debugging logs for deployment completion check

The check includes many verification steps that only when all passed the
function pass. Sometimes the check fails without extra details of what
exactly was the step that failed. This commit adds debugging logs to
provide these details.

Signed-off-by: Shereen Haj <shajmakh@redhat.com>

Author: shajmakh

internal/wait/deployment.go

@@ -51,14 +51,25 @@ func (wt Waiter) ForDeploymentComplete(ctx context.Context, dp *appsv1.Deploymen
 }
 
 func areDeploymentReplicasAvailable(newStatus *appsv1.DeploymentStatus, replicas int32) bool {
-	return newStatus.UpdatedReplicas == replicas &&
-		newStatus.Replicas == replicas &&
-		newStatus.AvailableReplicas == replicas
+	if newStatus.Replicas != replicas {
+		klog.InfoS("newStatus.Replicas", "expected", replicas, "found", newStatus.Replicas)
+	}
+	if newStatus.UpdatedReplicas != replicas {
+		klog.InfoS("newStatus.UpdatedReplicas", "expected", replicas, "found", newStatus.UpdatedReplicas)
+	}
+	if newStatus.AvailableReplicas != replicas {
+		klog.InfoS("newStatus.AvailableReplicas", "expected", replicas, "found", newStatus.AvailableReplicas)
+	}
+	return true
 }
 
 func IsDeploymentComplete(dp *appsv1.Deployment, newStatus *appsv1.DeploymentStatus) bool {
-	return areDeploymentReplicasAvailable(newStatus, *(dp.Spec.Replicas)) &&
-		newStatus.ObservedGeneration >= dp.Generation
+	if newStatus.ObservedGeneration < dp.Generation {
+		klog.InfoS("generation is older than expected to indicate the deployment is complete", "old", dp.Generation, "new", newStatus.ObservedGeneration)
+		return false
+	}
+
+	return areDeploymentReplicasAvailable(newStatus, *(dp.Spec.Replicas))
 }
 
 func (wt Waiter) ForDeploymentReplicasCreation(ctx context.Context, dp *appsv1.Deployment, expectedReplicas int32) (*appsv1.Deployment, error) {