I am (un)lucky enough to had to manage several test, QA and production server farms back in the more manual and bash scripty days. Log in 12 different VMS to se

I am (un)lucky enough to had to manage several test, QA and production server farms back in the more manual and bash scripty days. Log in 12 different VMS to set up proxies, ntp, release versions whatnot. I once spent 3 weeks with several colleges to use a multiple hundred page documentation to set up shit and the error was always a bad IP address or wrong configuration or missing values from arcane places. For me the value of docker was clear from the beginning and love on first sight.