如何使用 docker 和 nginx 服务 django 媒体文件？

Question

My setup for dockerizing & serving the Django app is a bit different when it comes to Nginx so the solutions I found didn't help.

I have dockerized the django app and its working fine except the media files. I am not using nginx inside the container but on the actual server. All the requests even static files are served perfectly except media files. Here is settings for static and media:

STATIC_ROOT = os.path.join(BASE_DIR, 'static_cdn')
STATIC_URL = '/static/'

MEDIA_ROOT = os.path.join(BASE_DIR, 'media_cdn')
MEDIA_URL = '/media/'


STATICFILES_DIRS = (
    os.path.join(BASE_DIR, 'static'),
)

Here is my docker-compose file:

version: "3"
services:
  backend:
    image: gitrepo:latest
    #image: 731d5d7e9296
    ports:
      - 8400:8000
    links:
      - database
    command: bash -c "python manage.py migrate
      && python manage.py collectstatic --noinput
      && python manage.py runserver 0.0.0.0:8000"
    volumes:
      - media-cdn-data:/app/media_cdn
    deploy:
      restart_policy:
        condition: on-failure

    tty: true

  database:
    image: "postgres:12" # use latest official postgres version
    env_file:
      - database.env # configure postgres
    volumes:
      - database-data:/var/lib/postgresql/data/ # persist data even if container shuts down
volumes:
  database-data: # named volumes can be managed easier using docker-compose
  media-cdn-data:

This is my nginx file:

server {
       server_name app.platformname.com;
             location /media/ {
                 proxy_pass http://127.0.0.1:8400/;
                 alias /app/media_cdn/;
             }
       location / {
            proxy_pass http://127.0.0.1:8400/;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_read_timeout 3600;
            proxy_set_header Connection '';
            # these two lines here
            proxy_http_version 1.1;
        }
}

Any help is appreciated,I have been struggling with it for the past 4 days:)

Answer 1

Also i don't see you have any nginx block in your docker-compose file. Your

You have try this way both in your backend section and reverse proxy section

 - "./dist/static_cdn:/backend/static_cdn" # map physical machine

and in the nginx file add this:

 alias /backend/static_cdn;

Note: Please update your docker-compose file for nginx/reverse proxy similar to this

Why do you have to map with local physical machine instead of the container? coz, you will get permission denied error if you don't map with local machine to container