docker and docker-compose

Dockerfile for nginx

FROM tutum/nginx
RUN rm /etc/nginx/sites-enabled/default
ADD sites-enabled/ /etc/nginx/sites-enabled
ADD static/ /www/static

# the directory structure of the nginx component: 
# ./nginx
# ├── Dockerfile
# ├── sites-enabled
# │   └── app
# └── static
#     └── place_holder
#
# and nginx/sites-enables/app is in the next file

Dockerfile for web

FROM python:3.4 # replace this whatever nodejs image you want, look on dockerhub
ADD . /code
WORKDIR /code
RUN pip install -r requirements.txt # do whatever you need to install the dependencies

nginx sites-enables app

server {
    listen 80;
    server_name your_server_domain.com;
    charset utf-8;
    location /static {
        alias /www/static;
    }
    location / {
        proxy_pass http://web:8000;

        # Set HTTP headers so that our app knows
        # where the requests really come from
        proxy_set_header HOST $host;
        proxy_set_header X-Real-IP $remote_addr;
	      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}

sample docker-compose.yml

nginx:
  build: ./nginx
  ports:
    - "80:80"
  volumes:
    - /www/static
  links:
    - web:web

web:
  build: .
  command: command to start your server
  volumes:
    - .:code
  links:
    - pg
  environment:
    DEBUG: True
    DB_NAME: PG_1_PORT_5432_TCP_ADDR

pg:
  restart: always
  image: postgres
  ports:
    - 5432:5432
  environment:
    POSTGRES_PASSWORD: pg_pass
    POSTGRES_USER: pg_user