Tkinter Docker App Example

docker.sh

# Build the image
docker build -t dip .

# # Get IP address of Mac
IP=$(/usr/sbin/ipconfig getifaddr en0)

# # Print IP address
echo "IP: $IP"

# # Allow connections through XQuartz
/opt/X11/bin/xhost + "$IP"

# Run the container
docker run -u=$(id -u $USER):$(id -g $USER) -e DISPLAY=$IP:0 -v /tmp/.X11-unix:/tmp/.X11-unix:rw --rm -it dip

Dockerfile

FROM ubuntu:20.04 as builder

FROM python:3.10.7

# Create a user to run the application
RUN apt-get update && \
      apt-get -y install sudo

RUN useradd -ms /bin/bash docker && echo "docker:docker" | chpasswd && adduser docker sudo

# Allow sudo without password (add docker user to sudoers)
RUN echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers

# Switch to the docker user
USER docker

# Become root
USER root

# Set the working directory for the container
WORKDIR /home/docker
COPY . .

# Install PIL and tk dependencies
RUN sudo apt-get install apt-utils
RUN sudo apt-get update && apt-get install -y \
    python3-pil \
    python3-tk \
    python3-pil.imagetk

# Install the dependencies
RUN pip install --upgrade pip; \
    pip3 install -r requirements.txt
    
# Create /.local directory
RUN mkdir /.local; mkdir /.local/share; chmod 777 /.local; chmod 777 /.local/share

# Set the display port to avoid crash and to be able to use the container with a remote host
ENV DISPLAY=:0

# Run the application
CMD ["python3", "main.py"]

main.py

from tkinter import Tk, Label
from platformdirs import user_data_dir
from pathlib import Path

root = Tk()
root.title("Hello World")
root.geometry("400x200")
Label(root, text="Hello World").pack()

# Get the path to the user data directory
dir = Path(user_data_dir()) / "HelloWorld"

# Create the directory
dir.mkdir(parents=True)

root.mainloop()

requirements.txt

platformdirs

for linux user

#!/bin/bash

###### Build the image
docker build -t flaskapp .

###### Get IP address of the host
IP=$(hostname -I | awk '{print $1}')

###### Print IP address
echo "IP: $IP"

###### Allow connections to X server
xhost +local:docker

###### Run the container
docker run -e DISPLAY=$DISPLAY \
           -v /tmp/.X11-unix:/tmp/.X11-unix:rw \
           -v $HOME/.Xauthority:/root/.Xauthority:rw \
           --net=host \
           --rm -it flaskapp