nginx-proxy/nginx.tmpl

{{ range $host, $containers := groupBy $ "Env.VIRTUAL_HOST" }}
upstream {{ $host }} {

{{ range $index, $value := $containers }}
	{{ with $address := index $value.Addresses 0 }}
	server {{ $value.Gateway }}:{{ $address.HostPort }};
	{{ end }}
{{ end }}

}

server {
	gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

	server_name {{ $host }};
        proxy_buffering off;

	location / {
	    proxy_pass http://{{ $host }};
	    include /etc/nginx/proxy_params;
	}
}
{{ end }}