Signal-desktop in a container
Note: This isn't supported by whisper systems - use at your own risk etc
To build the container locally:
docker build -t signal .
The application uses sandboxing to make it work so you'll need to add the
sys_admin capability to the container to make that go
docker run -it --rm -v /tmp/.X11-unix:/tmp/.X11-unix -e "DISPLAY=${DISPLAY}" -e USERID=${UID} --name=signal --cap-add sys_admin signal
If you dont want to do that adding -e nosandbox=1 to the docker line will
enable the --no-sandbox option for the application negating the need for the
extra capability. Sandbox exists for a reason, use without it at own risk etc
Add extra volumes for downloads/uploads with extra docker volume options ( -v )
Your user ID (UID) is needed so signal can talk to your display manager
User profile data will be saved to /data/signal/.config/Signal within the container and stopping the container will remove that data unless...
Map that to your host system by adding this to your docker line:
-v ${HOME}/.config/Signal:/data/signal/.config/Signal