首先，我对Docker，NGINX还很陌生，我正在尝试将我的MERN应用程序容器化。我的目标是将前端（react），后端（nodejs）和nginx对接，并使用对接合成来运行它们。到目前为止，我已经对接了它们，所有的东西都运行得没有任何错误。但是我不能访问后端，我使用了代理传递，这是显示404。
在我的Nginx中，localhost（“/”）是我的react应用程序，“/apipoint”是我通过代理传递设置的后端。但是在浏览器中，我不能通过“localhost/apipoint”访问任何东西。虽然我可以通过“localhost：PORT”访问后端
我的文件夹结构

├── Backend
│   ├── Dockerfile
│  
├── Frontend
│   │
│   └── Dockerfile
│   │
│   └── default.conf
│
└── docker-compose.yml

默认.conf（nginx）

server {
    listen 80 default_server;
    listen [::]:80 default_server;

    server_name _;

location /apipoint {
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;

        proxy_pass http://nodejsserver:8082;
    }
location / {
        root /var/www/html;
    }
}

停靠文件（前端）

# pull the Node.js Docker image

FROM node:alpine as builder

# create the directory inside the container

WORKDIR ./Frontend

# copy the package.json files from local machine to the workdir in container

COPY package*.json ./

# run npm install in our local machine

RUN npm install --force

# copy the generated modules and all other files to the container

COPY . ./

# the command that starts our app

RUN npm run build

# stage 2

FROM nginx

# WORKDIR /usr/share/nginx/html

COPY default.conf /etc/nginx/conf.d/default.conf

# Copies static resources from builder stage  --from=builder

COPY --from=builder ./Frontend/build /var/www/html

EXPOSE 80

RUN chown nginx.nginx /var/www/html/ -R

停靠文件（后端）

# pull the Node.js Docker image

FROM node:alpine

# create the directory inside the container

WORKDIR ./Backend

# copy the package.json files from local machine to the workdir in container

COPY package*.json ./

# run npm install in our local machine

RUN npm install --force

# copy the generated modules and all other files to the container

COPY . .

# our app is running on port 5000 within the container, so need to expose it

EXPOSE 8082

# the command that starts our app

CMD ["node", "server.js"]

Docker-compose.yml

version: "3.8"
services:
    nodeserver:
        build:
            context: ./Backend
        container_name: nodejsserver
        hostname: nodejsserver
        networks:
            - app-network
        ports:
            - "8082:8082"
    frontend:
        build:
            context: ./Frontend
        container_name: nginx
        hostname: nginx
        networks:
           - app-network
        ports:
           - "80:80"
 networks:
     app-network: 
         external: true

我的docker-compose文件有什么问题吗？或者nginx配置有什么问题吗？或者我在其他地方做错了什么？我真的很感激任何类型的建议和解决方案。

• 谢谢-谢谢