[notyourday]

Docker manages dependencies and libraries as well as whoever created the docker images manages those dependencies and libraries.

Most of developers that are suddenly becoming more productive with docker do equivalent of a full install of an distribution that they run in production, call it a container and get the claps from management because "We managed to do it faster". Never mind that the surface for brokenness is now even higher than the surface for brokenness on a VM that the container is going to be ran on had the VM got the full install of of the distribution.

> VirtualBox feels like installing a regular computer. It takes a long time and is a lot of manual work. If you want to change something you login on the existing VM until you reach a point where you no longer remember all the changes you've made over the years. The machine is unclean.

That's because in this approach no one bothered to do equivalent of what one does when creating a docker image - write chef/puppet/salt/ansible baseline configuration so the new VM is nothing other than "base-VM + special config for this function".