But it leaves me wondering: is there any sort of packaging of Postgres and these “friends” into a single opinionated virtual appliance, such that I could just stick up a couple of VMs with the same image with different role tags, and get a good cluster with automatic transparent N:M proxying, automatic transparent backup-and-restore, etc?
In other words, is there a product that is to Postgres as Gitlab CE is to Github (or like Dokku is to Heroku): a “host it yourself, but easily, and starting from a scale of 1 with no overhead” equivalent of a SaaS service?