running under Docker in macOS with X11

[PaulWieland]

Feature Request

Feature Description

Support for running under macOS with XQuartz (X11 window system for macOS)

Installation Method

I'm attempting to run in docker under macOS 14.1.2 with XQuartz.

$docker run   --net="host"   --privileged   --name survey   -it   --rm   -v $(pwd):/pwd   -w /pwd   -e DISPLAY=$DISPLAY   -v "$HOME/.Xauthority:/root/.Xauthority:ro"   jantman/python-wifi-survey-heatmap   wifi-survey -b DeckAP -i en0 -s 10.0.1.3 -p main_floor.png -t main_floor

Unable to access the X Display, is $DISPLAY set properly?

$ echo $DISPLAY

/private/tmp/com.apple.launchd.OoSO3ahrXN/org.xquartz:0

Testing Assistance

Yes, I can test.

[jantman]

@PaulWieland Thanks for submitting this. Just as a heads up I don't use Mac, so I'm not really sure how much I can do for this. One guess, though, is that /private/tmp/com.apple.launchd.OoSO3ahrXN/org.xquartz is either a file or pipe/device, which maybe needs to be mounted in to the container?

I'd really need someone who knows more about Mac, and XQuartz specifically, to assist on this...

[PaulWieland]

I have experience with docker, iperf, and some with python but none with python + x11. Is there a basic hello world example you could offer that I can use to figure out if python can interact with x11 under macOS?

[PaulWieland]

I can natively run this program

import wx

app = wx.App()
window = wx.Frame(None, title = "wxPython Frame", size = (300,200))
panel = wx.Panel(window)
label = wx.StaticText(panel, label = "Hello World", pos = (100,50))
window.Show(True)
app.MainLoop()

and it correctly renders an X11 window.

Now to test under docker (or mount the $DISPLAY path in docker)

[PaulWieland]

Mapped the display property like this:

docker run  \
    --net="host" \
    --privileged \
    --name survey \
    -it \
    --rm \
    -v $(pwd):/pwd \
        -v $(DISPLAY):/tmp/display \
    -w /pwd \
    -e DISPLAY=/tmp/display \
    -v "$HOME/.Xauthority:/root/.Xauthority:ro" \
    jantman/python-wifi-survey-heatmap \
    wifi-survey -b DeckAP -i en0 -s 10.0.1.3 -p main_floor.png -t main_floor

However it produces these errors which I haven't yet chased down:

DISPLAY: delegate library support not built-in '' (X11) @ error/display.c/DisplayImageCommand/1901.
docker: invalid reference format: repository name must be lowercase.

The docker error might be a simple syntax problem. The DISPLAY error might be more serious, but so far the only pages Ive found are related to Imagemagick which is unrelated afaik.

[hnykda]

I wasn't able to make it work on Mac, so I rewrote it here: https://github.com/hnykda/wifi-heatmapper

[jantman]

Cool, thanks so much @hnykda ! I've updated the README to add a section on OS support and link to your project.

[hnykda]

Thank you for your work!