How to free up disk space used by Docker?

This is a quick post about Docker. It uses a lot of space for volumes, images, containers, etc…

Most of the times, at least for the applications I use Docker, it uses too much space for volumes.

In order to free space used by Docker:

start the containers you want to keep
- by doing this, the elements related to these containers will not be removed
run docker system prune –volumes
- this will free up a lot of space.

See that even if you run docker system prune –all, the volumes will NOT be removed. That is why you must specify the –volumes parameter in the command. I was expecting that the –all included the volumes as well but this is not the case with Docker 20.10.

Leia também

Sobre o autor

IT professional with over 20 years of experience in industry. BSc in Computational Mathematics, always learning and enthusiastic about software development and automation. Full stack developer proficient in Javascript, Node, React, Python, Docker, API design and many more!

Veja a biografia completa

Veja também