How to copy a empty but modifed 'template' VM from Nu5 to Nuc3
I maintain two Proxmox servers and keep a fully updated Ubuntu Server 24.04 template VM ready for deployment. This template includes SSH with my key pair, Fish shell, ATUIN, Docker, Docker Compose, and my user configured in the Docker group. When deploying a new VM from this template, I only need to update the IP address, configure a static DHCP reservation, change the hostname, and install the target application. I keep the master template on NUC5. For deployments on NUC5, I clone the template directly. For deployments on NUC3, I copy the template over first, then complete the configuration. This document outlines the steps to transfer the template between servers—a process I perform infrequently enough to warrant documented procedures.