For a Docker container started with the
docker run command to be removed on exit, you need to use the
docker run -it --rm ubuntu /bin/bash
If you forgot to run your container with
--rm, you can list running containers and close them.
# The -a flag shows exited containers as well.
docker container ls -a
# CONTAINER ID IMAGE COMMAND CREATED STATUS NAMES
# c88ccae63e88 ubuntu "/bin/bash" 20 secs ago Exited (0) pop_low
docker rm c88ccae63e88 # or docker container rm c88ccae63e88
Here's the error you'll get if you try to delete a running container. You have to stop the container before removing it or force remove it.
docker container rm db39950ab550
Error response from daemon: You cannot remove a running container db39950ab55019fcb0b7eadaacb777f9babd6f8198c1082e5621980055c0eaa9. Stop the container before attempting removal or force remove
# The -f flag force-removes running containers.
docker rm -f db39950ab550 # or docker container rm -f db39950ab550