50  Docker 101

Docker images and containers can use a huge amount of storage space. It’s important to remove old images preriodically.

50.1 Configuration

Note

Docker runs as a daemon and more information is available at https://docs.docker.com/config/daemon/.

First, stop the Docker daemon:

sudo systemctl stop docker

The configuration file is /etc/docker/daemon.json.

Last, start the Docker daemon:

sudo systemctl start docker

sudo systemctl enable docker

50.2 Remove all resources

Note

This can take a lot of time.

docker system prune --force --all

50.3 Access log

50.3.1 Windows Subsystem for Linux (WSL)

The log files are under C:\Users\username\AppData\Local\Docker where username is your user name.