Use docker-compose to build a simple python flask with nginx, connection with unix sock file.

docker-compose-example.yml

version: '3'
services:

    nginx:
        container_name: nginx-container
        hostname: nginx-flask
        build:
          context: ./nginx
          dockerfile: Dockerfile
        restart: always
        ports:
          - "443:443"
        volumes:
          - sock:/sock
          - ./server_logs:/var/log/nginx
        depends_on:
          - flask

    flask:
        container_name: flask-container
        hostname: flask
        build:
          context: ./flask
          dockerfile: Dockerfile
        restart: always
        command: uwsgi --ini uwsgi.ini
        volumes:
          - sock:/sock
          - ./server_logs:/log
          - ./flask/apis:/app
        extra_hosts:
          - "database:192.168.1.1"
          
volumes:
  sock:

nginx.conf

upstream uwsgi {
    # for a file socket
    server unix:///sock/app.sock;
}