I installed Debian and Docker in a Proxmox environment with a scratch installation. Now I would like to save this installation as a template and then roll out various machines using it. In Linux, the machine ID and host name are adjusted via Ansible. My question is whether I need to change something in Docker or not, in this clone
Nothing unique in a Docker installation AFAIK. They will probably all use the same network range, but that’s Docker network internal, should not matter outside the VM.
You could set global logging limits like max 10x 100MB files, so drives don’t fill up.