}

	// Install base chart
	err := h.InstallChart(BaseReleaseName, baseChartPath, nsConfig.Get(BaseReleaseName), overrideValuesFile, Timeout, versionArgs)
	if err != nil {
		t.Fatalf("failed to install istio %s chart: %v", BaseChart, err)
	}

	// Install discovery chart

    labels:
      istio: custom-gateway-helm
`, rev)), 0o644)
				cs := t.Clusters().Default().(*kubecluster.Cluster)
				h := helm.New(cs.Filename())
				// Install ingress gateway chart
				if err := h.InstallChart("ingress", filepath.Join(env.IstioSrc, "manifests/charts/gateways/istio-ingress"), gatewayNs.Name(),
					d, helmtest.Timeout); err != nil {
					t.Fatal(err)
				}
				retry.UntilSuccessOrFail(t, func() error {