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rocker-win

Project Status: Concept – Minimal or no implementation has been done yet, or the repository is only intended to be a limited example, demo, or proof-of-concept. DOI

Proof of concept for running R in Windows Containers with Docker for Windows. It provides selected images based on microsoft/windowsservercore, using various base images and exploring automated builds on different platforms.

Available images

This little side-project is currently for exploration only, therefore not all bugfix versions of R are re-build regularly. The base images are limited by the availability of Microsoft Windows Server versions of public CI platforms, since I have only limited access to Windows myself.

See also Windows Container Version Compatibility.

Windows Server 2019

Base image: mcr.microsoft.com/windows/servercore:ltsc2019

Built by Appveyor: Build status

Images:

  • nuest/rocker-win:ltsc2019-3.6.2
  • nuest/rocker-win:ltsc2019-latest
  • nuest/rocker-win:latest

Windows Server 2016

Base image: microsoft/windowsservercore:ltsc2016

Built by Appveyor: Build status

Images:

  • nuest/rocker-win:ltsc2016-3.4.4
  • nuest/rocker-win:ltsc2016-3.5.3
  • nuest/rocker-win:ltsc2016-latest

Windows Server 1803

Base image: microsoft/windowsservercore:1803

Built by Travis CI: Build Status

Images:

  • nuest/rocker-win:1803-3.5.3
  • nuest/rocker-win:1803-latest

R versions

Each minor version has it's own Dockerfile in a directory named as the version number, e.g. 3.5.

Images updates on Docker Hub are triggered manually.

Build locally

Depending on the Windows Server/Windows 10 version you have, pick a suitable Dockerfile and build it:

docker build --tag rocker-win:3.6.2 --file ltsc2016/3.6.2/Dockerfile .

The CI configuration files .travis.yml and appveyor.yml contain more examples.

On my personal Windows 10 Professional, I was able to build images using all the platform variants (ltsc2019, ltsc206, and 1803).

Use

Remove the nuest/ from image names to use locally built images.

docker run --rm -it nuest/rocker-win

# get a PowerShell in the container with a specific Windows and R version
docker run --rm -it nuest/rocker-win:ltsc2016-3.6.2 powershell.exe

# run Rscript
docker run --rm -it rocker-win Rscript.exe -e "1+1"

All images include micro as a terminal-based text editor, see its commands when you want to edit some files within the container.

Demos and use cases

Linux containers seem like the better way to go for R: they are more lightweight, the Rocker stack of images is excellently maintained and hardened as well as flexible. However, one potential use case is the deployment of R-based web applications alongside Windows containers in an organisation which already runs Windows Containers. Instead of battling with the admin or operations teams, R developers may provide an alternative to get their work out. The following demos showcase this use case with two popular web application frameworks for R, and demonstrates the easy use of packages for spatial analysis with complex library dependencies.

Automated Builds

Depending on the available Windows installation (see Windows Container Version Compatibility), the following platforms support building of different Windows-based images. The automated builds are partly for validating the Dockerfiles work, while some also deploy the images to Docker Hub.

Docker Hub

The automatic image builds depend on Appveyor because Docker Hub does not support Windows containers, at least AFAIK.

Building on Appveyor

Build status

Appveyor runs Windows Server 2016 and 2019 and supports different versions of Docker, including "experimental mode" for the latter one.

2016

Docker CE 18.05.0-ce for Windows and Linux, with docker-compose 1.16.1

Used base image in this repo: microsoft/windowsservercore:ltsc2016

2019

Docker CE 19.03.5 for Windows, wich docker-compose 1.24.1

Used base image in this repo: mcr.microsoft.com/windows/servercore:ltsc2019

Note: This Appveyor image also has mcr.microsoft.com/windows/servercore:ltsc2016 base images available, so the whole ltsc2016 image stack could also be built here.

Building on Travis CI

Build Status

Travis CI supports Windows Server, version 1803). ltsc2016-based image building fails.

Resources

Contribute

Your contributions are welcome! This repository really is mostly a proof-of-concept, but I'd be happy to support anyone who wants to turn this into a suite of images aspiring to the Rocker Project.

Note this project has a Code of Conduct.

License

Contributions in this repository are published under MIT license (see file LICENSE). See file C:\license.txt in the container for the Microsoft images and container license/EULA.