Microsoft is getting ready for the next big update for Windows Server (check out ) and some of the new features are very exciting for Docker users. One of the most important enhancements is that Docker can now run Linux containers on Windows (LCOW), using Hyper-V technology. Running Docker Linux containers on Windows requires a minimal Linux kernel and userland to host the container processes.

This is exactly what was designed for: creating secure, lean and portable Linux subsystems that can provide Linux container functionality as a component of a container platform. We’ve been busy prototyping LinuxKit support for Docker Linux containers on Windows and have a working preview for you to try. This is still a work in progress, and requires either the recently announced or Windows 10 Insider builds. UPDATE: LCOW support is available in Windows 10 Fall Creators Update and in Windows Server 1709.

Nearing the end of his life, the mage transferred all his energy and wisdom into a single powerful Crystal. Unable to defeat this mage or recover the Crystal, the apprentices managed to thwart him by casting a spell on the gem that would turn the mage into stone should he attempt to use its power. The spell worked and the mage disappeared but, unfortunately, so did the Crystal. For a millennium after his passing, his apprentices guarded and used it to suppress the forces of darkness. Then, unexpectedly, another super powerful mage was born -- one who threatened to rule the world after successfully stealing the Crystal.

The simplest way to try it out on Windows 10 is to install the edge variant of Docker for Windows (). On Windows Server 1709,. Running Docker Linux Containers on Windows with LinuxKit UPDATE:. The instructions below have been tested on Windows 10 and Windows Server Insider builds 16278 and 16281.

On Linux, Docker is much lighter than a VM, because it uses the very same kernel as its host. You can have hundreds of containers on a single machine. Try to do that with true VMs. It’s an app provided by Docker Company for Mac OS and Windows. The special feature in this toolbox is the requirement for VirtualBox, which will be a supervisor to run Linux. So, Docker is available as another machine in Docker environment.

Be sure to install (Windows 10) or (Windows Server Insider) before starting. Setup Docker and LinuxKit A preview build of LinuxKit is available by simply running the following commands in PowerShell (with Administrator rights): $progressPreference = 'silentlyContinue' mkdir '$Env:ProgramFiles Linux Containers” Invoke-WebRequest -UseBasicParsing -OutFile linuxkit.zip Expand-Archive linuxkit.zip -DestinationPath '$Env:ProgramFiles Linux Containers.' Rm linuxkit.zip Now get a master branch build of the Docker daemon that contains preview support for Linux containers on Windows: Invoke-WebRequest -UseBasicParsing -OutFile dockerd.exe Start a new Docker daemon listening on a separate pipe and using a separate storage location from the default install: $Env:LCOW_SUPPORTED=1 $env:LCOW_API_PLATFORM_IF_OMITTED='linux'.

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Dockerd.exe -D --experimental -H 'npipe:////./pipe//docker_lcow' --data-root c: lcow Try it Run a Linux container: docker -H 'npipe:////./pipe//docker_lcow' run -ti busybox sh Docker just launched a minimal VM running a LinuxKit instance hosting the Linux container! Since this is an early preview there are some limitations, but basic Docker operations like pull and run work. Looking ahead Both Windows Server Insider builds and Docker support for Linux containers on Windows are in early preview mode. When GA, Docker Linux containers on Windows will improve the Docker Linux container experience for both Windows developers and server administrators. Developers will be able to more easily build and test mixed Windows/Linux Docker applications by running containers for both platforms side-by-side on the same system. And IT-admins that prefer Windows will soon be able to easily run (mostly) Linux-only software like HAProxy and Redis on Windows systems by way of Docker Linux containers on Windows. For example, Docker Linux containers on Windows will make setting up Docker Enterprise Edition and Universal Control Plane (which relies on some Linux-only components) on Windows Server much simpler.