opts := &buildClusterOpts{
				mutable: newClusterWrapper(&cluster.Cluster{
					ClusterDiscoveryType: &cluster.Cluster_Type{Type: test.discoveryType},
				}),
				mesh: push.Mesh,
			}
			if test.h2 {
				setH2Options(opts.mutable)
			}
			cb.applyUpstreamTLSSettings(opts, test.tls, test.mtlsCtx)

			if test.expectTransportSocket && opts.mutable.cluster.TransportSocket == nil ||