log.Debug("ztunnel EOF")
					return nil
				}
				return err
			case err == nil:
				log.Warn("ztunnel protocol error, unexpected message")
				return fmt.Errorf("ztunnel protocol error, unexpected message")
			default:
				// we get here if error is deadline exceeded, which means ztunnel is alive.
			}

		case <-ctx.Done():
			return nil
		}
	}
}

			if err != nil {
				return fmt.Errorf("failed to create k8s client: %v", err)
			}

			name, namespace, err := inferPodMeta(ctx, client, "app.kubernetes.io/name=prometheus")
			if err != nil {
				return err
			}
			return portForward(name, namespace, "Prometheus",
				"http://%s", bindAddress, promPort, client, cmd.OutOrStdout(), browser)
		},
	}
	return cmd
}

		if err != nil {
			return nil, err
		}
		installLog.Infof("Using CNI config template from %s", template.cniNetworkConfigFile)
		return cniConfig, nil
	}

	if len(template.cniNetworkConfig) > 0 {
		installLog.Infof("Using CNI config template from CNI_NETWORK_CONFIG environment variable.")
		return []byte(template.cniNetworkConfig), nil
	}

		ipProto,
		podUID,
		true,
	).Return(nil)

	fixture.ipsetDeps.On("addIP",
		"foo-v4",
		netip.MustParseAddr("2.2.2.2"),
		ipProto,
		podUID,
		true,
	).Return(nil)

	// List should return one IP not in our "pod snapshot", which means we prune
	fixture.ipsetDeps.On("listEntriesByIP",
		"foo-v4",
	).Return([]netip.Addr{
		netip.MustParseAddr("2.2.2.2"),

	if err != nil {
		return fmt.Errorf("couldn't read result: %v", err)
	}
	expectedFile, err := os.ReadFile(expected)
	if err != nil {
		return fmt.Errorf("couldn't read expected: %v", err)
	}
	if !bytes.Equal(resultFile, expectedFile) {
		return fmt.Errorf("expected != result. Diff: %v", cmp.Diff(string(expectedFile), string(resultFile)))
	}
	return nil
}

	if err := cfg.addLoopbackRoute(); err != nil {
		return err
	}

	if err := cfg.addInpodMarkIPRule(); err != nil {
		return err
	}

	log.Debug("Adding iptables rules")
	if err := cfg.executeCommands(builder); err != nil {
		log.Errorf("failed to restore iptables rules: %v", err)
		return err
	}

	return nil
}

	return testServer.URL, func() bool {
		testServer.Close()
		return cniAddServerCalled
	}
}

func buildCmdArgs(stdinData, podName, podNamespace string) *skel.CmdArgs {
	return &skel.CmdArgs{
		ContainerID: "testContainerID",
		Netns:       testSandboxDirectory,
		IfName:      "eth0",
		Args:        fmt.Sprintf("K8S_POD_NAMESPACE=%s;K8S_POD_NAME=%s", podNamespace, podName),
		Path:        "/tmp",

	wg, waitForMockCalls := NewWaitForNCalls(t, 1)
	fs := &fakeServer{testWG: wg}

	fs.On("AddPodToMesh",
		ctx,
		pod,
		util.GetPodIPsIfPresent(pod),
		"",
	).Return(nil)

	server := &meshDataplane{
		kubeClient: client.Kube(),
		netServer:  fs,
	}

	handlers := setupHandlers(ctx, client, server, "istio-system")
	client.RunAndWait(ctx.Done())
	go handlers.Start()

	switch logLevel {
	case "debug":
		return log.DebugLevel
	case "warn":
		return log.WarnLevel
	case "error":
		return log.ErrorLevel
	case "info":
		return log.InfoLevel
	}
	return log.InfoLevel
}

func GetLoggingOptions(udsAddress string) *log.Options {
	loggingOptions := log.DefaultOptions()
	loggingOptions.OutputPaths = []string{"stderr"}
	loggingOptions.JSONEncoding = true
	if udsAddress != "" {

				return nil
			}
		}

		return fmt.Errorf("istio-cni CNI config removed from CNI config file: %s", cniConfigFilepath)
	}
	// Verify that Istio CNI config exists as a standalone plugin
	cniConfigMap, err := util.ReadCNIConfigMap(cniConfigFilepath)
	if err != nil {
		return err
	}

	if cniConfigMap["type"] != "istio-cni" {
		return fmt.Errorf("istio-cni CNI config file modified: %s", cniConfigFilepath)
	}
	return nil