Hi Sebastian, that's pretty cool! Thanks for sharing.
Cheers Martin P.S.: Personally I'm a little bit shocked to see how easy it is to expose the GPU as that makes escaping the container pretty easy. On Monday, March 14, 2016 5:36:28 PM CET Sebastian Grüner wrote: > hey all, > > I've been fiddling around wit lxc on a smartphone the other week, did > some reading and thought I'd try out some ideas with kwin_wayland. > This is one of your proposals for this years GSOC projects at KDE [1], > and I know my approach is different from what is explained there. > Nevertheless I'd like to share my initial hack with you, in case anyone > wants to pursue this further. > Long story short: I copied random bits and pieces of the web and got > kwin_wayland and plasmashell (via startplasmacompositor) running in a > containerized environment with native hardware acceleration, no llvmpipe > needed :-). (I used systemd-nspawn, docker and lxc should work as well, > haven't tried this though). > > Here is what I've done: > Get a rootfs of your favorite distro: > - I use Opensuse Tumbleweed since I am familiar with this. (KDE > Frameworks 5.20, Plasma 5.5.95) > - I set up Debian unstable as well, which worked, but this uses old KDE > packages (debootstrap) > - I tried Ubuntu Xenial (debootstrap), weston works with native hw, but > kwin_wayland won't start up. > > Systemd comes with a minimal container tool, systemd-nspawn [2], which > is described as similar to a chroot and quite easy to use. With this one > can just switch into the rootfs: > > sudo systemd-nspawn -D $ROOTFSDIRECTORY/ > > systemd-nspawn has quite a lot of command line switches, you can set > environment variables and bind-mount specific directories for example. > So why not just bind-mount the device-node of my graphics-card? > here we go: > > xhost +local: > > sudo systemd-nspawn --setenv=DISPLAY=:0 \ > --setenv=XAUTHORITY=~/.Xauthority \ > --setenv=XDG_RUNTIME_DIR=/run/user/1000 \ > --bind-ro=$HOME/.Xauthority:/root/.Xauthority \ > --bind=/run/user/1000/:/run/user/1000 \ > --bind=/tmp/.X11-unix \ > --bind=/dev/shm:/dev/shm \ > --bind=/dev/dri/card0:/dev/dri/card0 \ > -D suse/ kwin_wayland --libinput --xwayland --drm --windowed "konsole > --platform wayland" > > Initially I tried weston: to do this just change the command at the very > end. If you change the command to startplasmacompositor the Plasma > desktop starts up. In order to make Plasma useable and avoid loops for > kscreen, powerdevil you need Dbus, so I just did bind mount my > bus-socket with > > --bind=/run/dbus/system_bus_socket:/run/dbus/system_bus_socket > > It should be somehow possible to run the dbus-daemon from within the > container. > > There is probably a lot of stuff that could be improved upon, but I got > plasmashell in a container up and running! > If the container hangs/crashes you can terminate it from a different tty > with machinectl [3]. > > I hope you like this. :-) > > Sebastian > > [1] > https://community.kde.org/GSoC/2016/Ideas#Project:_Running_KWin.2FWayland_in > _a_Docker_container [2] > https://www.freedesktop.org/software/systemd/man/systemd-nspawn.html [3] > https://www.freedesktop.org/software/systemd/man/machinectl.html > _______________________________________________ > Plasma-devel mailing list > Plasma-devel@kde.org > https://mail.kde.org/mailman/listinfo/plasma-devel
signature.asc
Description: This is a digitally signed message part.
_______________________________________________ Plasma-devel mailing list Plasma-devel@kde.org https://mail.kde.org/mailman/listinfo/plasma-devel
