Override the service, something like sudo systemctl edit docker.service
[Service]
ExecStart=
ExecStart=/usr/sbin/dockerdThen add "hosts": ["unix:///var/run/docker.sock", "tcp://127.0.0.1:2375"] to /etc/docker/daemon.json
{
"storage-driver": "zfs",
"data-root": "/basin/docker",
"hosts": ["unix:///var/run/docker.sock", "tcp://127.0.0.1:2375"]
}And run:
sudo systemctl daemon-reload
sudo systemctl restart docker.serviceAnd check with sudo netstat -lntp | grep dockerd