Docker is a set of platform as a service (PaaS) products that use OS-level virtualization to deliver software in packages called containers. Containers are isolated from one another and bundle their own software, libraries and configuration files; they can communicate with each other through well-defined channels. All containers are run by a single operating system kernel and therefore use fewer resources than virtual machines.

Additional Information#

Switch between Hyper-V and VirtualBox#

In order to “quickly” switch between them use the commands below. But a restart if necessary in any case.

Docker for Windows and VirtualBox#

Docker for Windows requires two Windows features activated:

  • Hyper-V

  • Virtual Machine Platform

  • Windows Hypervisor Platform


Once activate normal Virtualbox images don’t work anymore because the default Type 2 Hypervisor cannot run im parallel with Type 1 Hypervisor Hyper-V. Luckily since Virtualbox v6.0 you can select Hyper-V as default Hypervisor for any image.


When run Virtualbox image run under Hyper-V there is a significant performance penalty. (practically unusable)


Once a image is launched a new icon in the iconbar appears (tortoise with a V)