55 lines
1.3 KiB
Text
55 lines
1.3 KiB
Text
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#!/usr/bin/env bash
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if [ "$#" -lt 1 ]; then
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echo "Usage: ./run.sh command [arguments]"
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exit 1
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fi
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# Find free display number
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for ((DNum=1 ; DNum <= 100 ; DNum++)) ; do
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[ -e /tmp/.X11-unix/X$DNum ] || break
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done
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RESOLUTION=1920x1080
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# Start nested X Server
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Xephyr :$DNum \
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-extension MIT-SHM \
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-extension XTEST \
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-nolisten tcp \
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-screen $RESOLUTION \
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-resizeable &
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xephyrpid=$!
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# If simple ratpoison window manager exists, run it
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if command -v ratpoison; then
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sleep 1
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ratpoison -d :$DNum &
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else # Use the default x window manager installed
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DISPLAY=:$DNum
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x-window-manager &
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fi
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windowmanagerpid=$!
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docker run --net=host \
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--rm \
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-e DISPLAY=:$DNum \
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-v /tmp/.X11-unix/X$DNum:/tmp/.X11-unix/X$DNum:rw \
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--user $(id -u):$(id -g) \
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--group-add audio \
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--cap-drop=ALL \
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--shm-size 2g \
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"$@"
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kill $windowmanagerpid
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kill $xephyrpid
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## Explanation of docker parameters
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# --net=host is to access the X server
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# --rm is to remove the container when finished
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# The next two lines is to pass along the X server socket and display
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# --user is to set user to be non-root
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# --cap-drop=ALL is to drop all priviledges
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# --shm-size 2g is to increase shared memory
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# $@ is to pass along the rest of the arguments
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