I use it for build servers and my companies infrastructure.
The alternative would be a nightmare to me.
the fact that the singular is used in response to a thread concerning considering options and diving deep is telling.
Docker is the best way to have reproducable build environments. I've been doing it for years with my packages, as well as embedded Linux.
Docker is also a very easy way to deploy applications/servers. I have been doing it for years and it's been nothing but smooth.
Give me an actual problem that isn't ridiculous and self-inflicted.
the fact that the singular is used in response to a thread concerning considering options and diving deep is telling.