Fix nil map for cluster builder (#46024)

Co-authored-by: Sergii Shapar <sshapar@google.com>
istio · Jul 14, 2023 · fc7ca46 · fc7ca46
1 parent f937989
commit fc7ca46
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/pilot/pkg/networking/core/v1alpha3/cluster_builder.go b/pilot/pkg/networking/core/v1alpha3/cluster_builder.go
@@ -575,6 +575,9 @@ func (cb *ClusterBuilder) buildLocalityLbEndpoints(proxyView model.ProxyView, se
 			svcLabels := service.Attributes.Labels
 			if _, ok := svcLabels[model.IstioCanonicalServiceLabelName]; ok {
 				metadata = instance.Endpoint.MetadataClone()
+				if metadata.Labels == nil {
+					metadata.Labels = make(map[string]string)
+				}
 				metadata.Labels[model.IstioCanonicalServiceLabelName] = svcLabels[model.IstioCanonicalServiceLabelName]
 				metadata.Labels[model.IstioCanonicalServiceRevisionLabelName] = svcLabels[model.IstioCanonicalServiceRevisionLabelName]
 			} else {