docker-compose.yml

services:
  web:
    build: .
    command: >
      sh -c "python manage.py wait_for_db &&
             python manage.py migrate &&
             python manage.py runserver 0.0.0.0:5001"

    ports:
      - "5001:5001"
    expose:
      - 5001
    environment:
      - DEBUG=1
      - DB_NAME=mydatabase
      - DB_USER=myuser
      - DB_PASSWORD=mypassword
      - DB_HOST=db # The postgres service is db which app connects over localhost (network bridge)
      - DB_PORT=5432
      - ALLOWED_HOSTS=localhost,127.0.0.1,0.0.0.0
      - CSRF_TRUSTED_ORIGINS=http://localhost:5001/, http://127.0.0.1:5001/

    depends_on:
      - db

  db:
    image: postgres:13
    volumes:
      - postgres_data:/var/lib/postgresql/data
#      - ./init.sql:/docker-entrypoint-initdb.d/init.sql # To run additional commands, generally not required
    ports:
      - "5432:5432"
    expose:
      - 5432
    environment:
      POSTGRES_DB: mydatabase
      POSTGRES_USER: myuser
      POSTGRES_PASSWORD: mypassword

volumes:
  postgres_data: