Notes on docker
Docker uses a lot of system resources without your knowledge. This notes describe how to find out and what to do about it.
Find out space used by docker:
sudo docker system df
and
sudo du -sh /var/lib/docker/
What to do about it?
1. Remove unused layers (very effective)
sudo docker system prune
2. Remove unused images
sudo docker image prune -a
3. Clear out unused volume data
sudo docker volume prune
4. Clear out builder cache
sudo docker builder prune
5. Remove unused containers:
sudo docker container prune