Arch Linux

archdom

Member

Registered: 2018-09-12

Posts: 96

[SOLVED] Archlinux Plasma Desktop in Docker

Hi guys.
I was wondering if archlinux plasma desktop could be started in a docker container. I know very well that docker containers are not born to be virtual machines but to run applications in the background !! I would like to do what KDE Neon did with dockers.
At the moment I can run any GUI app ( dolphin,kate etc) without problems, But I can't start startplasma-x11 in a Zephyr window. Can someone help me? Thank you all

Last edited by archdom (2020-02-26 16:22:25)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,399

Re: [SOLVED] Archlinux Plasma Desktop in Docker

Doesn't work is not an error message what do you get when you try to do it, what fails exactly?

archdom

Member

Registered: 2018-09-12

Posts: 96

Re: [SOLVED] Archlinux Plasma Desktop in Docker

If I run startplasma-x11, i get this error:

dbus-update-activation-environment: error: unable to connect to D-Bus: Using X11 for dbus-daemon autolaunch was disabled at compile time, set your DBUS_SESSION_BUS_ADDRESS instead
"dbus-update-activation-environment" ("--systemd", "--all") exited with code 71
Warning: Unable to load any usable ISO8859 font
"xmessage" ("-geometry", "500x100", "Could not sync environment to dbus.\n") exited with code 11
QProcess: Destroyed while process ("ksplashqml") is still running.
startkde: Starting up...
Could not sync environment to dbus.

i tried to run "dbus-launch startplasma-x11" goes on but i see a black screen in a zephyr window

Last edited by archdom (2020-02-24 15:00:47)

archdom

Member

Registered: 2018-09-12

Posts: 96

Re: [SOLVED] Archlinux Plasma Desktop in Docker

I would like to do in archlinux what they did with KDENeon

(https://hub.docker.com/r/kdeneon/plasma).

It would be a very useful thing.
Where could I see it? there is nothing on the docker hub

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,399

Re: [SOLVED] Archlinux Plasma Desktop in Docker

Well the dockerfile is there you could do what they do. You should probably elaborate on the blackscreen you get when launching a dbus session. Does xorg start in theory, do you get a xorg log, what general system logs do you get in your docker? They also have a source code repository literally in the link. They explicitly disable compositing with a custom kwinrc, did you do that?

Last edited by V1del (2020-02-25 18:23:41)

archdom

Member

Registered: 2018-09-12

Posts: 96

Re: [SOLVED] Archlinux Plasma Desktop in Docker

With the "dbus-launch startplasma-x11" command it worked.
Only "startplasma-x11" gives me this error:

dbus-update-activation-environment: error: unable to connect to D-Bus: Address does not contain a colon
"dbus-update-activation-environment" ("--systemd", "--all") exited with code 71
Warning: Unable to load any usable ISO8859 font
"xmessage" ("-geometry", "500x100", "Could not sync environment to dbus. \ n") exited with code 11
QProcess: Destroyed while process ("ksplashqml") is still running.
startkde: Starting up ...
Could not sync environment to dbus.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,399

Re: [SOLVED] Archlinux Plasma Desktop in Docker

Yes which is entirely expected, what prevents you from launching a dbus session as part of the docker start up?

archdom

Member

Registered: 2018-09-12

Posts: 96

Re: [SOLVED] Archlinux Plasma Desktop in Docker

It is simple curiosity. I wanted to understand why Arch doesn't work. Obviously there is a different DBUS management between KDE Neon and Arch. I have to try to replicate this:

 https://github.com/mviereck/x11docker/wiki/How-to-connect-container-to-DBus-from-host 

Maybe creating the same user as the host on the guest and mounting the directories given by the two environment variables XDG_RUNTIME_DIR and DBUS_SESSION_BUS_ADDRESS as a volume I should access the same dbus session.
Mark as solved