Discourse hosting on Linode?

I tend to agree with that. Most one-click installs do the installation for you, but since you didn’t do it, you don’t know how to do the basics like do a rebuild. My dashboard will do the one-click installation and also provides one-click access to command-line rebuilds and plugin installation/removal. It does everything just as you would if you were following the guidlines here, including things like managing postgres upgrades, running a cleanup to keep unused images trimmed and things like that.