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Allow none-root users

sudo groupadd docker
sudo gpasswd -a $USER docker
newgrp docker

Solve "no space left on device"

ubuntu

sudo vi /etc/docker/daemon.json

{
        "storage-driver": "devicemapper",
        "storage-opts": [
                "dm.basesize=40G"
        ]
}

Mac

Docker -> settings -> Resources -> Disk Image Size