static void Main(string[] args)
{
    var container = new UnityContainer();
    container.RegisterType<IOrderProcess, OrderProcess>();

    container.RegisterType<ILoggerFactory, LoggerFactory>(new InjectionConstructor());

    container.RegisterType(typeof(ILogger<>), typeof(Logger<>));

    ConfigureLogging(container);

    var orderProcess = container.Resolve<IOrderProcess>();
    orderProcess.Process();
}

public static void ConfigureLogging(IUnityContainer container)
{
    var loggerFactory = container.Resolve<ILoggerFactory>();
    loggerFactory.AddNLog();
}

public class OrderProcess : IOrderProcess
{
    private ILogger<OrderProcess> Logger;

    /// <summary>
    /// Default constructor
    /// </summary>
    public OrderProcess(ILogger<OrderProcess> logger)
    {
        Logger = logger;
    }

    public void Process()
    {
        Logger.LogTrace("A log trace!");
    }
}