docker.md

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Some notes on Docker

Clean up all dangling data

From: https://stackoverflow.com/a/32723127

docker system prune

This deletes all dangling data, so please be careful before using it.

overlay2 taking up a lot of disk space

The directory /var/lib/docker/overlay2 can take up a lot of disk space. There seems to be little way for Docker to prune it, so be prepared to invest in more disk space for it.

• https://forums.docker.com/t/some-way-to-clean-up-identify-contents-of-var-lib-docker-overlay/30604/10
• https://github.com/docker/distribution/blob/master/ROADMAP.md#deletes