You can run the docker image as a background process by running the -d option.
root@computer:~/docker# docker run -d -p 8080:80 imagename b35744d7cba1ebb4ae2c5d65105c46eda4fdffac6136448c5ceabe18900c217d
You can list the container in docker using
root@computer:~/docker# docker container ls CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES b35744d7cba1 imagename "python app.py" 14 seconds ago Up 13 seconds 0.0.0.0:8080->80/tcp stupefied_liskov
And you can stop the docker image using the stop function and container id
root@computer:~/docker# docker stop b35744d7cba1 b35744d7cba1
You should no longer see it running
root@computer:~/docker# docker container ls CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES