我有一个Python项目，当我更新并提交代码并尝试重建该项目时，代码不会更改

Question

docker-compose.yml

version: '2'
services:

    db:
      container_name: postgres
      image: postgres
      hostname: db
      environment:
        POSTGRES_PASSWORD: password123
      # ports:
      #   - "5432:5432"
      #   (HOST:CONTAINER)
      volumes:
        - pgdata:/var/lib/postgresql/data/

    redis:
      image: redis
      container_name: redis
      hostname: redis
      restart: always
      # ports:
      #   - "6379:6379"
      # extra_hosts:
      #   - "redis:0.0.0.0"
      volumes:
        - redisdata:/data

    nginx:
        container_name: nginx
        build: 
          context: ./
          dockerfile: ./nginx/Dockerfile
        restart: always
        ports:
        - "8080:80"
        volumes:
        - api_data:/docker_api
        - ./log:/var/log/nginx
        depends_on:
        - backend

    backend:
        container_name: backend
        build: ./backend
        restart: always
        command: uwsgi --ini uwsgi.ini
        volumes:
        - api_data:/docker_api
        links:
          - db
          - redis
        depends_on:
        - db
        - redis

volumes:
    api_data:
    pgdata:
    redisdata:

后端/ dockerfile

FROM python:latest
LABEL maintainer ugodubai
ENV PYTHONUNBUFFERED 1
RUN mkdir /docker_api
WORKDIR /docker_api
COPY . /docker_api
# RUN apt-get update && apt-get install vim
RUN pip install --upgrade pip && pip install -r requirements.txt

nginx.conf

upstream uwsgi{
    server unix:/docker_api/app.sock;
}

server {
    listen 80;
    server_name localhost ugodubai.com;

    root /usr/share/nginx/html;

    location /media  {
      alias /docker_api/backend/media;
    }

    location /api {
      include /etc/nginx/uwsgi_params;
      uwsgi_pass uwsgi;
    } 

    location / {
        try_files $uri $uri/ @router;
        index index.html;
    }

    index index.html;

    location @router {
        rewrite ^.*$ /index.html last;
    }
}

我的项目使用Docker Compose部署了Django应用，当我更新代码并将其提交到GitHub时遇到问题，然后我在服务器上git pull并使用docker-compose build --no-cache && docker-compose Up -d --force-recreate（代码）容器中的容器没有更改。

我当前的想法是更改容器中的代码，并保持docker_api / backend / media中的图像不被清除。我怎样才能做到这一点？ docker_api / backend / media保存用户上传的图像。

我想这个问题可能来自数据量，api_data：/ docker_api将整个应用程序用作数据量，因此每次重建代码都被数据量覆盖吗？但是我需要nginx才能将docker_api / app.sock数据用作反向代理。

问题解决了， docker-compose.yml

version: '3'
services:

  db:
    container_name: postgres
    image: postgres
    hostname: db
    environment:
      POSTGRES_PASSWORD: password123
    volumes:
      - pgdata:/var/lib/postgresql/data/
    # networks:
    #   - database_network

  redis:
    image: redis
    container_name: redis
    hostname: redis
    restart: always
    volumes:
      - redisdata:/data

  nginx:
    container_name: nginx
    build: 
      context: ./
      dockerfile: ./nginx/Dockerfile
    restart: always
    ports:
      - "8080:80"
    volumes:
      - ./nginx/conf.d:/etc/nginx/conf.d
      - ./frontend/dist:/usr/share/nginx/html
      - static_volume:/backend/static
      - media_volume:/backend/media  
    depends_on:
      - backend
    # networks:
    #   - nginx_network

  backend:
      container_name: backend
      build: ./backend
      restart: always
      volumes:
        - .:backend
        - static_volume:/backend/static
        - media_volume:/backend/media
      links:
        - db
        - redis
      depends_on:
        - db
        - redis
      # networks:
      #   - nginx_network
      #   - database_network

# networks:
#   nginx_network:
#     driver: bridge
#   database_network:
#     driver: bridge

volumes:
  pgdata:
  redisdata:
  static_volume:
  media_volume:

nginx.conf

upstream backend_server{
    # server unix:/docker_api/app.sock;
    server backend:8000;
}

server {
    listen 80;
    server_name localhost ugodubai.com;

    root /usr/share/nginx/html;

    location /media  {
      alias /backend/media;
    }

    location /api {
      # uwsgi_pass uwsgi;
      proxy_pass http://backend_server;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $host;
      proxy_redirect off;
    } 

    location / {
        try_files $uri $uri/ @router;
        index index.html;
    }

    index index.html;

    location @router {
        rewrite ^.*$ /index.html last;
    }
}