nginx docker

sites.conf
===========
server {
    listen 80;

    server_name foo.bar.com;

    location / {
        proxy_pass http://w.x.y.z:8000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }
}

Dockerfile
===========
FROM nginx
ADD conf/sites.conf /etc/nginx/conf.d/sites.conf

docker commands
================
docker build -t nginx .
Successfully built 38c9976e598c
docker run --name nginx -p 80:80 38c9976e598c