I think your list is a "murder, arson and jaywalking"[0] kind of list. Ansible playbooks and Docker images are very, very simple compared to building Kubernetes

I think your list is a "murder, arson and jaywalking"[0] kind of list. Ansible playbooks and Docker images are very, very simple compared to building Kubernetes or hardware racks (both of which can be very, very hard). My Ansible playbooks are barely a step up from shell scripts, my Docker images are basically always whatever each project supplies themselves (and don't run on top of Kubernetes), and my infrastructure consists of a grand total of one Raspberry Pi and an 8-port switch. These things don't have to be overcomplicated if one doesn't want to overcomplicate them. Docker and Ansible lead to real time savings, both because they document the exact software setup and because they make replicating it very easy when switching servers (as inevitably happens in a hodge-podge home lab). [0] https://tvtropes.org/pmwiki/pmwiki.php/Main/ArsonMurderAndJaywalking https://tvtropes.org/pmwiki/pmwiki.php/Main/ArsonMurderAndJa...