Recently we had to test a posibility of our core application being hosted in contenerized environment. It was really hard, because some tweaks we used are not really documented well. Kernel Tweaks had to be tested separately because we were not sure whether they work or not, recource management had to be done from zero level. JVM optimalizarion from zero level. Service Discovery configuration from zero level. --- Sure it works from the go for punny small apps. But when it comes to huge corporations running extrordinary workloads - no its not that easy.