Docker-compose Nginx + Django + Gunicorn

Docker-compose Nginx + Django + Gunicorn

1. Make folder tree like these
mi_project
    ├── src
    │   ├── midjangoapp
    │   ├── manage.py
    ├── config
    │   ├── requirements.pip
    │   ├── nginx
    │      ├── midjangoapp.conf
    ├── Dockerfile
    └── docker-compose.yml
  
2. write requiretments.pip file by version you need or omit for latest
  Django == 1.11.2
  gunicorn == 19.7.1
  pymysql == 0.7.11
  mysqlclient
  pyfcm

3.Dockerfile.
  FROM python:3.5 # imagename : version
  ENV PYTHONUNBUFFERED 1
  RUN mkdir /config
  ADD /config/requirements.pip /config
  RUN pip install -r /config/requirments.pip
  RUN mkdir /src;
  WORKDIR /src
  
4. docker-compose.yml
  version: '3'
  services:
    nginx:
      image: nginx:latest
      container_name: nginx1
      ports:
        - "80:8000"   # I like working on 80 since you don't need to specify and looking neat on URL
      volumes:
        - ./src:/src
        - ./config/nginx:/etc/nginx/conf.d
      depends_on:
        - web
    
    web:
      build: .
      container_name: django1
      command: bash -c "python manage.py makemigrations && python manage.py migrate && gunicorn mydjango.wsgi -b 0.0.0.0:8000 --workers 3"
      volumes:
        - ./src:/src
      expose:
        - "8000"

5. config file for nginx
  upstream web {
    ip_hash;
    server web:8000
  }
  
  server {
    location / {
      proxy_pass http://web/;
      }
      listen 8000;
      server_name localhost;
    }

Notice,
  if you don't add 'web' to django allowed host, django won't start up
  
  #Nginx
  docker exec -ti nginx bash
  #Web
  docker exec -ti web bash
  #Database
  docker exec -ti db bash 
  
  #Nginx
  docker-compose logs nginx  
  #Web
  docker-compose logs web  
  #DB
  docker-compose logs db  
  
  # Rebuild and run detached
  docker-compose up --force-recreate -d
  # Pull from repository and recreate
  docker-compose rm -f
  docker-compose pull
  docker-compose up --build -d