If you self host, do not use containers and all those things.
Just use a static site generator like zola or hugo and rsync to a small VPS running caddy or nginx. If you need dynamic thing, there are many frameworks you can just rsync too with little dependencies. Or use PHP, it's not that bad. Just restrict all locations except public ones to your ip in nginx config if you use something like wordpress and you should be fine.
If you have any critical stuff, create a zfs dataset and use that to backup to another VPS using zfs send, there are tools to make it easy, much easier than DB replication.
replies(2):