Some replies are saying this is only for "as-scale/FAANG". It may only be absolutely necessary there, but it's helpful even for smaller folks. Over the years,

Some replies are saying this is only for "as-scale/FAANG". It may only be absolutely necessary there, but it's helpful even for smaller folks. Over the years, even Debian LTS goes out of support and new features and software should be installed. There's moving systems, doing restores, things breaking and wanting to "reset" to a known working state. Any time you can do something simple with docker or even just (short) step-by-step build scripts, that's a huge win. I have playbooks for deploying a system, but with npm installs, bower installs, secrets to be hand copied from multiple places, etc, it feels more like pets and it's NOT simple to deploy.