I’ve created the docker-compose.yml file in roots home. Or should i try in different location?!
Great, this works as described! Also after rebooting … what is confusing me, is that i want to take a look to the volume, which is (as by docker-compose.yml) located in /home/node … i thought 
root@linux:~# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7cba99a98d85 docker.n8n.io/n8nio/n8n “tini – /docker-ent…” 6 minutes ago Up 5 minutes 0.0.0.0:5678->5678/tcp, [::]:5678->5678/tcp root-n8n-1
root@linux:~#
root@linux:~# ls -l /home/node
ls: Zugriff auf ‘/home/node’ nicht möglich: Datei oder Verzeichnis nicht gefunden
root@linux:~#
root@linux:~# ls -l /home
insgesamt 4
drwx------ 13 user user 4096 27. Aug 08:47 user
root@linux:~#
But the file is not there. Hmmm. But … ok … i don’t have to understand every concept from the beginning … it’s up an running, yipee!
The next task, as i understand, is to modify the yml file, so that nginx (or a containter of enginge x?) is included and will be started also, right? Is it in an extra container (and both talking again) or in the same?