void RegisterConfiguration(ContainerBuilder builder)
    {
        var config = new Configuration();
        builder.RegisterInstance(config).As<IConfiguration>();

        builder.RegisterInstance(config.Service1Configuration).As<IService1Configuration>();
        builder.RegisterInstance(config.Service2Configuration).As<IService2Configuration>();
    }

public Service1(IService1Configuration config)
    {
        this.config = config;
    }