Ubuntu Docker容器中安装GNOME桌面并通过XRDP远程连接后立即断开的问题求助

我尝试了好几轮操作，想要在Docker容器里搭建Ubuntu桌面环境并通过XRDP远程访问，但每次用本地的mstsc.exe连接时，明明验证通过了，却会立刻断开，始终无法成功进入桌面。

我的操作步骤如下：

• 拉取并运行官方Ubuntu镜像，映射XRDP的3389端口：

  docker run -tid --name xrdp -p 3389:3389 ubuntu:latest
  

• 进入容器终端：

  docker attach xrdp
  

• 更新系统软件源：

  apt update
  

• 安装GNOME桌面环境：

  apt install ubuntu-desktop -y
  

• 安装XRDP服务：

  apt install xrdp -y
  

• 设置root用户密码并启动XRDP服务：

  passwd root
  service xrdp start
  

之后我用本地的mstsc.exe连接容器，输入root的账号密码，看起来验证成功了，但马上就断开连接。我查看了容器的输出日志，发现了一些错误和警告信息：

xrdp-sesman[25229]: [INFO ] Socket 7: AF_INET6 connection received from ::ffff:127.0.0.1 port 42214
xrdp-sesman[25229]: [INFO ] Terminal Server Users group is disabled, allowing authentication
xrdp-sesman[25229]: [INFO ] ++ created session (access granted): username root, ip ::ffff:221.212.116.25:1207 - socket: 11
xrdp-sesman[25229]: [INFO ] starting Xorg session...
xrdp-sesman[25229]: [INFO ] Starting session: session_pid 25239, display :10.0, width 2560, height 1600, bpp 24, client ip ::ffff:221.212.116.25:1207 - socket: 11, user name root
xrdp-sesman[25239]: [INFO ] [session start] (display 10): calling auth_start_session from pid 25239
xrdp-sesman[25229]: [ERROR] sesman_data_in: scp_process_msg failed
xrdp-sesman[25239]: pam_unix(xrdp-sesman:session): session opened for user root(uid=0) by (uid=0)
xrdp-sesman[25239]: pam_systemd(xrdp-sesman:session): Failed to connect to system bus: No such file or directory
xrdp-sesman[25229]: [ERROR] sesman_main_loop: trans_check_wait_objs failed, removing trans
xrdp-sesman[25241]: [INFO ] Starting X server on display 10: /usr/lib/xorg/Xorg :10 -auth .Xauthority -config xrdp/xorg.conf -noreset -nolisten tcp -logfile .xorgxrdp.%s.log
xrdp-sesman[25240]: [INFO ] Found X server running at /tmp/.X11-unix/X10
xrdp-sesman[25239]: [INFO ] Found X server running at /tmp/.X11-unix/X10
xrdp-sesman[25240]: [INFO ] Found X server running at /tmp/.X11-unix/X10
xrdp-sesman[25239]: [INFO ] Session started successfully for user root on display 10
xrdp-sesman[25244]: [INFO ] Starting the xrdp channel server for display 10
xrdp-sesman[25240]: [INFO ] Starting the default window manager on display 10: /etc/xrdp/startwm.sh
xrdp-sesman[25239]: [INFO ] Session in progress on display 10, waiting until the window manager (pid 25240) exits to end the session
xrdp-chansrv[25244]: [INFO ] Socket 12: AF_UNIX connection received
xrdp-chansrv[25244]: [INFO ] sound_process_training: round trip time 101
xrdp-sesman[25239]: [WARN ] Window manager (pid 25240, display 10) exited with non-zero exit code 255 and signal 5. This could indicate a window manager config problem
xrdp-sesman[25239]: [WARN ] Window manager (pid 25240, display 10) exited quickly (1 secs). This could indicate a window manager config problem
xrdp-sesman[25239]: [INFO ] Calling auth_stop_session and auth_end from pid 25239
xrdp-sesman[25239]: pam_unix(xrdp-sesman:session): session closed for user root
xrdp-sesman[25239]: [INFO ] Terminating X server (pid 25241) on display 10
xrdp-sesman[25239]: [INFO ] Terminating the xrdp channel server (pid 25244) on display 10
xrdp-sesman[25239]: [INFO ] X server on display 10 (pid 25241) returned exit code 0 and signal number 0
xrdp-sesman[25239]: [INFO ] xrdp channel server for display 10 (pid 25244) exit code 0 and signal number 0
xrdp-sesman[25239]: [INFO ] cleanup_sockets:
xrdp-sesman[25229]: [INFO ] ++ terminated session:  username root, display :10.0, session_pid 25239, ip ::ffff:221.212.116.25:1207 - socket: 11

我在网上搜了一下解决方案，有人说需要在~/.xsession文件里添加配置，但我在root目录下找不到这个文件。

请问我该怎么调整才能在Docker容器里成功启用GNOME桌面环境，并且通过XRDP从远程机器正常访问呢？谢谢大家的帮忙！

备注：内容来源于stack exchange，提问作者Glowberry