[tunnel] Minor style fixes

Author: dilyevsky

pkg/cmd/tunnel/cmd.go

@@ -214,7 +214,7 @@ func init() {
 createCmd.Flags().StringVarP(&tunnelNodeFile, "file", "f", "", "Path to the TunnelNode file to create.")
 updateCmd.Flags().StringVarP(&tunnelNodeFile, "file", "f", "", "Path to the TunnelNode file to update.")
 tunnelRunCmd.Flags().StringVarP(&tunnelNodePcapPath, "pcap", "p", "", "Path to the TunnelNode file to create.")
-tunnelRunCmd.Flags().StringVarP(&tunnelModeS, "mode", "m", "", "Mode to run the TunnelNode in")
+tunnelRunCmd.Flags().StringVarP(&tunnelModeS, "mode", "m", "user", "Mode to run the TunnelNode in.")
 
 tunnelCmd.AddCommand(createCmd)
 tunnelCmd.AddCommand(getCmd)

pkg/cmd/tunnel/run.go

@@ -225,7 +225,8 @@ func (t *tunnelNodeReconciler) Reconcile(ctx context.Context, req ctrl.Request)
 RequeueAfter: time.Second,
 }, nil
 } else {
-cOpts = append(cOpts, tunnel.WithServerAddr(tunnelNode.Status.Addresses[rand.Intn(len(tunnelNode.Status.Addresses))]))
+srvAddr := tunnelNode.Status.Addresses[rand.Intn(len(tunnelNode.Status.Addresses))]
+cOpts = append(cOpts, tunnel.WithServerAddr(srvAddr))
 }
 }
 if t.cfg.IsLocalMode {

pkg/tunnel/router/server_netlink_linux.go

@@ -54,7 +54,7 @@ func NewNetlinkRouter(opts ...Option) (*NetlinkRouter, error) {
 
 extLink, err := netlink.LinkByName(options.extIfaceName)
 if err != nil {
-return nil, fmt.Errorf("failed to get external interface: %w", err)
+return nil, fmt.Errorf("failed to get external interface %s: %w", options.extIfaceName, err)
 }
 
 tunDev, err := tun.CreateTUN(options.tunIfaceName, netstack.IPv6MinMTU)