if you have no idea what is docker, check this
git clone https://github.com/chen2mg/docker_tutorial.git
sudo docker build -f dockerfile -t <my_docker_image> .
sudo docker images
sudo docker ps
sudo docker run --gpus all -d <image_ID>
sudo docker exec -it <container_ID> /bin/bash
cd /tutorial/Training
python3 mnist.py
docker cp container_ID:/tutorial/my_model.h5 .