How to enable X forwarding from Docker on ubuntu to Mac

Question

My laptop is MAC. And I am developing on Ubuntu connecting remotely by ssh from my MAC.
I installed XQuartz on my MAC and now I am using X forwarding by adding -X option on ssh command. i.e. ssh -X <user_name>@<ip_address>
It works for me. for instance, if I executed xeyes on ubuntu, eyes can be seen on my MAC.
But when I tried to show eyes that is executed on docker on ubuntu, it NOT work. The result of execution is as below: No error message but nothing shown.

$ docker compose up -d 
[+] Running 1/1
 ✔ Container docker-compose-test-test-1  Started   0.0s 

yaml is as below:

services:
  test:
    image: xeyes_container
    tty: true
    command: xeyes
    environment:
      - DISPLAY=${DISPLAY}
    volumes:
      - /tmp/.X11-unix:/tmp/.X11-unix

Of course, when I log into the ubuntu with rdp etc. and execute docker compose command, eyes can be seen. But it is kind of troublesome for me to log into ubuntu with rdp etc. So I would like to see output on my MAC by using X forwarding.
Thank you so much for your all support!!

Answer 1

Try to run this on mac :

#!/bin/bash

# Build image xeyes-image on ubuntu-machine
ssh ubuntu-machine docker build -t xeyes-image -f - . << EOF
FROM ubuntu
RUN apt update && apt install -y x11-apps xauth
EOF

# Run image on ubuntu-machine
ssh -X -T ubuntu-machine bash << 'EOF'
echo "DISPLAY=$DISPLAY"
IFS=:. read _ port _ <<< $DISPLAY
echo "port=$port"
xauth=$(xauth list|awk '$1 ~ /.*unix:'$port'$/{print$3}')
echo "xauth=$xauth"
docker run --network=host -e DISPLAY --rm -v ~/.Xauthority:/root/.Xauthority-original xeyes-image bash -c "cp /root/.Xauthority-original /root/.Xauthority; xauth add $DISPLAY . $xauth; xeyes"
EOF

Calling method :

1. Copy/paste above script into test.sh

2. Run bash test.sh