Spotify running on Docker. Tested on Arch Linux with X and Pulseaudio

dk-spotify.sh

#!/bin/bash                                                                                   
                                                                                              
KEY=$(xauth list | grep $(hostname) | awk '{ print $3 }' | head -n 1)                          
                                                                                              
DCK_HOST=docker-spotify                                                                       
xauth add $DCK_HOST/unix:0 . $KEY                                                             
                                                                                              
docker run -it --rm \                                                                         
    -v /etc/localtime:/etc/localtime:ro \                                                     
    -v /tmp/.X11-unix:/tmp/.X11-unix \                                                        
    -v $HOME/.Xauthority:/tmp/.Xauthority \                                                   
    -e DISPLAY=unix$DISPLAY \                                                                 
    -e XAUTHORITY=/tmp/.Xauthority \                                                          
    -h $DCK_HOST \                                                                            
    --device /dev/snd:/dev/snd \                                                              
    -e PULSE_SERVER=unix:${XDG_RUNTIME_DIR}/pulse/native \                                    
    -v ${XDG_RUNTIME_DIR}/pulse/native:${XDG_RUNTIME_DIR}/pulse/native \                      
    --group-add $(getent group audio | cut -d: -f3) \                                         
    --name spotify \                                                                          
        jess/spotify