A Dockerfile based off of node:0.10-slim that installs CartoDB's Windshaft.

First, build the container:

$ docker build -t quay.io/azavea/windshaft:latest .

From there, assuming you have a local Windshaft server at server/server.js, you can run a container with:

$ docker run --rm -v ${PWD}/server:/opt/windshaft/server/ \
    quay.io/azavea/windshaft:latest server/server.js