This repository is part of Magento DevBox, a simple way to install a Magento 2 development environment. The repository contains a Dockerfile for the Varnish container. The repository is used to automatically create an image https://hub.docker.com/r/magento/magento2devbox-varnish/.
You can start creating the development environment here https://magento.com/tech-resources/download. You can find DevBox documentation here http://devdocs.magento.com/guides/v2.1/install-gde/docker/docker-over.html. You can find more technical information in the main container here https://github.com/magento/magento2devbox-web.
Please use GitHub issue/pull request features to ask questions, reports bugs or provide contributions.