from https://www.revsys.com/tidbits/brief-intro-docker-djangonauts/

docker-compose.yml

version: '3'

services:
  db:
    image: postgres:9.6.5
    volumes:
      - postgres_data:/var/lib/postgresql/data/
  web:
    build: .
    command: bash -c "python /code/manage.py migrate --noinput && python /code/manage.py runserver 0.0.0.0:8000"
    volumes:
      - .:/code
    ports:
      - "8000:8000"
    depends_on:
      - db

volumes:
  postgres_data:

There should be only one command, use "bash -c" to enter multiple commands.