Sharing the Xserver with docker container

[Tong Sun]

On Sun, Jan 24, 2021 at 10:24 PM Ryan Schmidt <ryandesign at macports.org> wrote:
>
> On Jan 24, 2021, at 21:15, Tong Sun wrote:
>
> > On Sun, Jan 24, 2021 at 9:30 PM Ryan Schmidt wrote:
> >
> >> On Jan 24, 2021, at 18:01, Tong Sun wrote:
> >>
> >>> For any Xserver in host, I normally just do the following in the
> >>> docker container
> >>>
> >>> export DISPLAY=':0'
> >>> xterm &
> >>>
> >>> and I'll be all set.
> >>>
> >>> However, I found that it is not the case for Xserver from macport, as
> >>> I see my DISPLAY in my host is
> >>>
> >>> DISPLAY=/private/tmp/com.apple.launchd.DiHpGrxgFr/org.macports:0
> >>>
> >>> How can I share that with my docker container?
> >>
> >> I'm not sure. Did you try first starting the X server on your Mac, and then doing what you did before in Docker?
> >
> > I'm very new to both Mac and macport. how to start the X server on Mac?
> >
> > I used macport to install xorg-server, then tried to start xterm.
> > xterm started fine, meaning my xorg-server started fine,
> > then I checked the DISPLAY in xterm, which is the above value.
>
> Starting any X11 program, such as xterm, will start the X11 server. Or you can manually launch /Applications/MacPorts/X11.app.
>
> Now that X11.app is running on macOS, what happens if you try to use X11 from your Docker container, with DISPLAY set to ":0"?

Error: Can't open display: :0