Docker holding a lot of disk space

Question

I just checked that docker is using a lot of disk space on my system. I used the devicemapper to determine the space. How do I remove the redundant docker data lying around.

Answer 1

Check your docker redundant containers and images that you're not using.

You can remove unused docker containers:

docker rm -v $(docker ps -a -q -f status=exited)

and unused docker images:

docker rmi $(docker images -q)