Pre-requisites:
Install docker
How to use it:
Using my image from https://hub.docker.com/
docker run --rm -v <path-to-dir-of-xpi>:/xpi marceloandrader/amo-validator /xpi/file.xpi -t extension
Using the image by building it yourself:
docker build -t=<yourname>/amo-validator .
docker run --rm -v <path-to-dir-of-xpi>:/xpi <yourname>/amo-validator /xpi/file.xpi -t extension