I think people who don't prefer Docker find it hard to articulate what is wrong with it. To me it is really a question of, how do you vet software before you u

I think people who don't prefer Docker find it hard to articulate what is wrong with it. To me it is really a question of, how do you vet software before you use it ? Will you take the time to understand your stack before it's deployed? When you employ certain abstractions, how much visibility do you lose ? Is it worth it ? Docker is fine as one of many alternatives, but to turn your nose up at well written, battle tested software which is part of most Linux distro's is a little crazy. I would definitely bet that people who chose to learn how cgroups work, how systemd works will see their skills age more gracefully. It reminds me of Dev-ops candidates that I have interviewed that laugh at the idea of ssh-ing to deploy a new version of code, without understanding that Ansible is generally doing the same.