Build and push

docker build -t nicolalovo/os:latest .
docker push nicolalovo/os:latest

Pull and run

Pull container

docker pull nicolalovo/os:latest

Run container for the first time

docker run -it nicolalovo/os:latest

Exit from container

exit

Stop container

docker stop <container_id>

Delete container

docker rm <container_id>

Run container after first time

Get container id

docker container ps

Example output:

CONTAINER ID   IMAGE                  COMMAND       CREATED         STATUS         PORTS     NAMES
3f454b9bfbc0   nicolalovo/os:latest   "/bin/bash"   4 seconds ago   Up 4 seconds             xenodochial_elion

In this case, the container id is 3f454b9bfbc0.

Restart container

docker start -i <container_id>

Create a shell in started container

docker exec -it <container_id> /bin/bash