如何在单个 Docker 容器中运行多个 django 服务？

Question

I have a Django project with a few microservices which heavily rely on django infrastructure itself and have to be started with:

python manage.py sevicename1
python manage.py sevicename2
python manage.py sevicename3
python manage.py sevicename4
python manage.py sevicename...

They all communicate with each other. What is the proper way to run them in one Dockerfile all together?

Answer 1

It is not possible to cut them out in separate containers. I fount no better solution and did it in my docker-compose.yml through YAML anchors.

dg: &dg
  image: python:3.7.6-alpine
   command: ....  --> ( gunicorn --config ./gunicorn.conf.py core.wsgi:application)

dg_run_sevicename1:
  <<: *dg
  restart: on-failure
  ports:
    - 9011:9011
  command: python manage.py sevicename

dg_run_sevicename2:
  <<: *dg
  restart: on-failure
  command: python manage.py sevicename2

dg_run_sevicename3:
...

Unless I agree to bascially multiple the same project source and use separate CMD or ENTRYPOINT at the end of each DOCKERFILE or YML declaration, it is perfectly fine. It works. However the total images size is 3 times bigger than the origin folder itself. Is it possible to do this in a better way?