Nginx, Node.js and Redis Dockerfiles are based on msanand's code at https://github.com/msanand/docker-workflow.
Edit config.toml, change BackendOverrideAddress's value to the IP of the host running the app.
docker-compose up -d
docker-compose scale node=5
docker build -t nvbeta/nginx ./nginx
docker build -t nvbeta/node ./node