sudo su -
snap install docker
# for information retrieval
snap info docker
systemctl list-units
systemctl list-units -t service
systemctl list-units -t service | grep docker
systemctl status snap.docker.dockerd.service
# oder (aber veraltet)
service snap.docker.dockerd status
systemctl stop snap.docker.dockerd.service
systemctl status snap.docker.dockerd.service
systemctl start snap.docker.dockerd.service
# wird der docker-dienst beim nächsten reboot oder starten des Server gestartet ?
systemctl is-enabled snap.docker.dockerd.service