b.applyTrafficPolicy(c, trafficPolicy)
			subsetClusters = append(subsetClusters, c)
		}
	}

	return
}

// applyTrafficPolicy mutates the give cluster (if not-nil) so that the given merged traffic policy applies.
func (b *clusterBuilder) applyTrafficPolicy(c *cluster.Cluster, trafficPolicy *networking.TrafficPolicy) {

	"istio.io/istio/pkg/config/protocol"
	"istio.io/istio/pkg/log"
)

// applyTrafficPolicy applies the trafficPolicy defined within destinationRule,
// which can be called for both outbound and inbound cluster, but only connection pool will be applied to inbound cluster.
func (cb *ClusterBuilder) applyTrafficPolicy(opts buildClusterOpts) {

	if destRule != nil {
		destinationRule := CastDestinationRule(destRule)
		opts.isDrWithSelector = destinationRule.GetWorkloadSelector() != nil
	}
	// Apply traffic policy for the subset cluster.
	cb.applyTrafficPolicy(opts)

	maybeApplyEdsConfig(subsetCluster.cluster)

	cb.applyMetadataExchange(opts.mutable.cluster)

	// Add the DestinationRule+subsets metadata. Metadata here is generated on a per-cluster