Function addRouteInNetNS

tailnet/test/integration/network.go:754–761

addRouteInNetNS adds a route to the given network namespace.

(netNS *os.File, route []string)

// addRouteInNetNS adds a route to the given network namespace.
func addRouteInNetNS(netNS *os.File, route []string) error {
	_, err := commandInNetNS(netNS, "ip", append([]string{"route", "add"}, route...)).Output()
	if err != nil {
		return xerrors.Errorf("add route %q in netns: %w", route, wrapExitErr(err))
	}

	return nil
}

// prepareSTUNServer creates a STUN server networking spec in a network
// namespace and joins it to the bridge. It also sets up the DERP map for the