docker-compose.yml

version: '3.3'

services:
  db:
    image: postgres
    environment:
      - POSTGRES_USER_FILE=/run/secrets/pg_username
      - POSTGRES_PASSWORD_FILE=/run/secrets/pg_password
    secrets:
      - pg_username
      - pg_password
    deploy:
      replicas: 1
    volumes:
      - pgdata:/var/lib/postgresql/data/

  nginx:
      image: nginx:django
      ports:
        - 80:80
        - 443:443
      depends_on:
        - web
      deploy:
        mode: global
        placement:
          constraints:
            - node.role == manager
      volumes:
        # bind mounting
        - ./src:/api
        - ./log:/var/log/nginx
        - /etc/letsencrypt:/etc/letsencrypt
      configs:
        - nginx
        - my_nginx

  web:
    image: python:django
    # command: uwsgi  --emperor uwsgi.ini
    command: uwsgi --ini uwsgi.ini
    volumes:
      # bind mounting
      - ./src:/api
    ports:
      - "8002:8000"
    depends_on:
      - db
    environment:
      - POSTGRES_USER_FILE=/run/secrets/pg_username
      - POSTGRES_PASSWORD_FILE=/run/secrets/pg_password
    deploy:
      replicas: 1
      restart_policy:
        condition: on-failure
    secrets:
      - pg_username
      - pg_password

secrets:
    pg_username:
        external: True
        #file: ./pg_username.txt
    pg_password:
        external: True
        #file: ./pg_password.txt

configs:
  nginx:
    external: true
  my_nginx:
    external: true

volumes:
    pgdata: