nginx container configured with cartodb.nginx.proxy.conf which is based on config file from sverhoeven/docker-cartodb with few modifications.
Note: You have to link your cartodb container as cartodb.localhost
docker run --link cartodb1:cartodb.localhost -d spawnthink/cartodb-nginx
or
git clone https://github.com/spawnthink/docker-cartodb-nginx.git
cd docker-cartodb-nginx
docker-compose up