The thing that kills me is the preconcevied we have to use $TOOL behaviors. Lets use docker as a deployment tool, where we are putting one container on each VM... Combined with the complete ignorance of packaging. 99% of the problems I hear people trying to solve with docker would be better solved with a 'postinstall' hook in a package called 'my_configuration' (it helps you with configuration versioning and in place upgrades!!!!). Combined with the complete lack of understanding what something like kickstart/autoYast can do.

It seems that in a huge number of cases, its possible to trim out the vast majority of the layers of deployment/etc crap with just a bit of KISS and using tools which are already installed...