Check pod recommendation is not nil before iterating

DataDog · Apr 8, 2024 · 23788cb · 23788cb
1 parent ad3ec34
commit 23788cb
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Showing 2 changed files with 10 additions and 5 deletions.
diff --git a/vertical-pod-autoscaler/pkg/utils/vpa/allowed_resource_filter.go b/vertical-pod-autoscaler/pkg/utils/vpa/allowed_resource_filter.go
@@ -38,14 +38,19 @@ func (p *allowedResourceFilter) Apply(podRecommendation *vpa_types.RecommendedPo
 	policy *vpa_types.PodResourcePolicy,
 	conditions []vpa_types.VerticalPodAutoscalerCondition,
 	pod *corev1.Pod) (*vpa_types.RecommendedPodResources, ContainerToAnnotationsMap, error) {
-	recommendation := podRecommendation
+
+	if podRecommendation == nil || policy == nil {
+		// If there is no recommendation or no policies have been defined then no recommendation can be computed.
+		return podRecommendation, nil, nil
+	}
+
 	accumulatedContainerToAnnotationsMap := ContainerToAnnotationsMap{}
 
-	for i, containerRecommendation := range recommendation.ContainerRecommendations {
-		recommendation.ContainerRecommendations[i] = filterAllowedContainerResources(containerRecommendation, p.allowedResources)
+	for i, containerRecommendation := range podRecommendation.ContainerRecommendations {
+		podRecommendation.ContainerRecommendations[i] = filterAllowedContainerResources(containerRecommendation, p.allowedResources)
 	}
 
-	return recommendation, accumulatedContainerToAnnotationsMap, nil
+	return podRecommendation, accumulatedContainerToAnnotationsMap, nil
 }
 
 func filterAllowedContainerResources(recommendation vpa_types.RecommendedContainerResources, allowedResources []corev1.ResourceName) vpa_types.RecommendedContainerResources {

diff --git a/vertical-pod-autoscaler/pkg/utils/vpa/allowed_resource_filter_test.go b/vertical-pod-autoscaler/pkg/utils/vpa/allowed_resource_filter_test.go
@@ -157,7 +157,7 @@ func TestAllowedResourceFilter(t *testing.T) {
 	for _, tc := range tests {
 		t.Run(tc.name, func(t *testing.T) {
 			processor := NewAllowedResourceFilter(tc.allowedResources)
-			processedRecommendation, _, err := processor.Apply(&tc.recommendation, nil, nil, nil)
+			processedRecommendation, _, err := processor.Apply(&tc.recommendation, &vpa_types.PodResourcePolicy{}, nil, nil)
 			assert.NoError(t, err)
 			assert.Equal(t, tc.expectedRecommendation, *processedRecommendation)
 		})