Docker spec for telegram-desktop in container on ppc64le

.gitignore

.env

README.org

Compiling telegram desktop, especially on power9 machines is quite a challenge.

I made a docker container spec based on the debian package of telegram desktop to make it easier on myself and I wouldn’t be limited to the web version of telegram, which is way too slow.

The container runs telegram desktop and uses the host X server and sound system. Not sure if the GPU is used by default.

Running:

• clone this repository
• create a file named .env and put USERNAME,UID and GID in there
• docker-compose build
• docker-compose up

As it is a container, clicking links won’t do much as we cant use the host browser

Make it more generic, esp. for other audio setups than mine

Determine UID,GID,USERNAME automatically?

Saves filling in the env file; at least use the determined ones as defaults

Is the non-privileged container setup I have relevant?

docker-compose.yml

version: "3.4"

services:
  app:
    image: telegram-desktop:latest
    group_add:
      - audio
    build:
      context: .
      args:
        - UID=$UID
        - GID=$GID
        - USERNAME=$USERNAME
    environment:
      - DISPLAY=${DISPLAY}
    volumes:
      # Use the X server from host
      - /tmp/.X11-unix:/tmp/.X11-unix
      - $HOME/.Xauthority:/home/$USER/.Xauthority

      # Video device mapping
      - /dev/dri:/dev/dri

      # Use pulseaudio from host
      - /run/user/$UID/pulse/native:/run/user/$UID/pulse/native

      # Make Telegram settings persistent
      - $HOME/.local/share/TelegramDesktop:/home/$USER/.local/share/TelegramDesktop

      # Make sure we can get to Downloads
      - $HOME/Downloads:/home/$USER/Downloads

    network_mode: host

Dockerfile

FROM debian:unstable
MAINTAINER Marcel van der Boom <marcel@van-der-boom.nl>

RUN apt-get update && \
    apt-get install -y telegram-desktop fonts-open-sans pulseaudio-utils

ARG UID
ARG GID
ARG USERNAME
RUN groupadd -g $UID $USERNAME && \
    useradd -d /home/$USERNAME -s /bin/bash -m $USERNAME -u $UID -g $GID

USER $USERNAME
ENV HOME /home/$USERNAME
ENV XDG_RUNTIME_DIR /tmp/runtime-$USERNAME
ENV PULSE_SERVER unix:/run/user/$UID/pulse/native
ENV PULSE_SINK alsa_output.pci-0033_01_00.0.analog-surround-21

CMD /usr/bin/telegram-desktop