为什么我不能运行X11应用程序？ [英] why can i not run a X11 application?

问题描述

因此，正如标题所示，我是 docker 新手。
我下载并安装了 archlinux / base 容器，到目前为止，该容器似乎运行良好。我已经设置了一些东西，并安装了一些软件包（包括 xeyes ），现在我想启动 xeyes 。为此，我通过运行 docker ps 找出了容器ID，然后在我的exec命令中使用了该ID，现在看起来像这样：

So, as the title states, I'm a docker newbie. I downloaded and installed the archlinux/base container which seems to work great so far. I've setup a few things, and installed some packages (including xeyes) and I now would like to launch xeyes. For that I found out the CONTAINER ID by running docker ps and then used that ID in my exec command which looks now like:

$ docker exec -it -e DISPLAY=$DISPLAY 4cae1ff56eb1 xeyes
Error: Can't open display: :0

为什么它仍然不起作用？此外，如何在不丢失其配置状态的情况下停止正在运行的实例？以前，我退出了该容器，重新启动它后，所有配置和软件安装都消失了。那是不希望的。如何正确处理呢？

Why does it still not work though? Also, how can I stop my running instance without losing its configured state? Previously I have exited the container and all my configuration and software installations were gone when I restarted it. That was not desired. How do I handle this correctly?

推荐答案

关于X显示器，您需要共享 xserver 套接字（注释： docker 无法绑定装入卷并在 exec 期间设置 $ DISPLAY （例如 Dockerfile ）：

Concerning the X Display you need to share the xserver socket (note: docker can't bind mount a volume during an exec) and set the $DISPLAY (example Dockerfile):

FROM archlinux/base

RUN pacman -Syyu --noconfirm xorg-xeyes

ENTRYPOINT ["xeyes"]

构建 docker 图片： docker build --rm --network host -t so：57733715。

运行 docker 容器： docker运行--rm -it -v /tmp/.X11-unix:/tmp/.X11- unix -e DISPLAY = unix $ DISPLAY这样：57733715

注意：如果未指定协议错误，您可以使用 xhost + 禁用主机检查，但是会出现警告（ man xhost 获取更多信息）。

Note: in case of No protocol specified errors you could disable host checking with xhost + but there is a warning to that (man xhost for additional information).

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