readinessFlags  *readinessFlags

	// duration used for graceful shutdown.
	shutdownDuration time.Duration

	// internalStop is closed when the server is shutdown. This should be avoided as much as possible, in
	// favor of AddStartFunc. This is only required if we *must* start something outside of this process.
	// For example, everything depends on mesh config, so we use it there rather than trying to sequence everything
	// in AddStartFunc