Publishing Two Sites with Django/Docker/Nginx Reverse Proxy?

Question

How can I publish two different Django projects with two domains to one host using Docker in my DigitalOcean Droplet? Should I set Nginx in the docker-compose.yml file, or should I set it on the host system (etc/nginx/…)? Or should I run nginx in a separate container?

When I search on the internet, people who publish django projects with docker usually write their nginx settings in the docker-compase.yml file, but I couldn't understand how to set the reverse proxy in this way to publish two different sites.

Nginx settings - Dockerfile, docker-compose.yml would be very appreciated if you give information about settings. Thanks in advance.

I'm sorry for my bad English :( :(

docker-compose.yml

version: '3'

services:

  djangoapp:
    build: .
    volumes:
      - .:/opt/services/djangoapp/src
      - static_volume:/opt/services/djangoapp/static
      - media_volume:/opt/services/djangoapp/media
    networks:
      - nginx_network
      - database1_network
    depends_on:
      - database1

  nginx:
    image: nginx
    ports:
      - 8000:80      
    volumes:
      - ./config/nginx/conf.d:/etc/nginx/conf.d
      - static_volume:/opt/services/djangoapp/static
      - media_volume:/opt/services/djangoapp/media
    depends_on:
      - djangoapp
    networks:
      - nginx_network

  database1:
    image: postgres
    env_file:
      - config/db/database1_env
    networks:
      - database1_network
    volumes:
      - database1_volume:/var/lib/postgresql/data

networks:
  nginx_network:
    driver: bridge
  database1_network:
    driver: bridge

volumes:
  database1_volume:
  static_volume:
  media_volume:

Nginx - local.conf

upstream hello_server {
    server djangoapp:8000;
}

server {

    listen 80;
    server_name localhost;

    location / {
        proxy_pass http://hello_server;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $host;
        proxy_pass http://127.0.0.1:8000;
    }

    location /static/ {
        alias /opt/services/djangoapp/static/;
    }

    location /media/ {
        alias /opt/services/djangoapp/media/;
    }
}

Dockerfile

FROM python:3.8


RUN mkdir -p /opt/services/djangoapp/src
WORKDIR /opt/services/djangoapp/src


COPY Pipfile Pipfile.lock /opt/services/djangoapp/src/

RUN pip install pipenv && pip install --upgrade pip && pipenv install --system
RUN pip install django-ckeditor


RUN pip install Pipfile

COPY . /opt/services/djangoapp/src

EXPOSE 8000

CMD ["gunicorn", "--chdir", "hello", "--bind", ":8000", "hello.wsgi:application"]