我已经创建了这个docker合成文件，build +运行时不会出错

version: '3.7'

volumes:
  grafana:
    driver: local
  prometheus-data:
    driver: local

services:
  prometheus:
    image: prom/prometheus:latest
    container_name: prometheus
    expose:
      - 9090
    volumes:
      - prometheus-data:/prometheus
      - ./prometheus:/etc/prometheus
    restart: unless-stopped
    command:
      - "--config.file=/etc/prometheus/prometheus.yml"
  
  grafana:
    image: grafana/grafana-oss:latest
    container_name: grafana
    expose:
      - 3000
    volumes:
      - grafana:/etc/grafana
    restart: unless-stopped
  
  nginx:
    image: nginx
    container_name: webserver
    restart: unless-stopped
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /opt/certs/:/etc/nginx/certs/
      - ./nginx/gw-web/:/usr/share/nginx/html:ro
      - ./nginx/nginx_proxy.conf:/etc/nginx/conf.d/default.conf
      - ./nginx/nginx.conf:/etc/nginx/nginx.conf
    command: [nginx-debug, '-g', 'daemon off;']

nginx具有以下反向代理配置：

server {
    listen 80;
    listen [::]:80;
    server_name 10.23.225.72;

    location /prometheus {

        proxy_pass http://prometheus:9090;

        proxy_set_header   Host             $host;
        proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
        proxy_set_header   X-Forwarded-Proto $scheme;
        proxy_max_temp_file_size 0;
        proxy_read_timeout 3000;    
    }

    location /grafana {

        proxy_pass http://grafana:3000;

        proxy_set_header   Host             $host;
        proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
        proxy_set_header   X-Forwarded-Proto $scheme;
        proxy_max_temp_file_size 0;
        proxy_read_timeout 3000;    
    }

    location / {
       root /usr/share/nginx/html;
    }
}

根页面是可访问的，并按预期工作，但当我试图进入任何容器时，我只是得到一个'404：未找到“错误。
我也尝试过：

location /prometheus {

        proxy_pass http://prometheus:9090/;

以及

location /prometheus/ {

        proxy_pass http://prometheus:9090/;

以及

location /prometheus/ {

        proxy_pass http://prometheus:9090;

我也尝试过在主机上将nginx作为服务运行，也没有成功，无论如何，我的项目需要我将其容器化。
我试着在Docker compose文件中添加另一个nginx容器：

nginx2:
    image: nginx
    container_name: webserver2
    restart: unless-stopped
    expose:
      - 8080

和nginx配置：

location /webserver {

        proxy_pass http://webserver2:8080/;

        proxy_set_header   Host             $host;
        proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
        proxy_set_header   X-Forwarded-Proto $scheme;
        proxy_max_temp_file_size 0;
        proxy_read_timeout 3000;    
    }

但这也会返回404。
是不是 Docker 的网络出了什么问题？
我从vscode检查网络配置json

{
    "Name": "frp-6_default",
    "Id": "940872d1cf151f8d1bb060edbf95c1bcfe29a544c7ea9561091b79a6c5588510",
    "Created": "2023-01-25T11:52:01.520893117Z",
    "Scope": "local",
    "Driver": "bridge",
    "EnableIPv6": false,
    "IPAM": {
        "Driver": "default",
        "Options": null,
        "Config": [
            {
                "Subnet": "172.18.0.0/16",
                "Gateway": "172.18.0.1"
            }
        ]
    },
    "Internal": false,
    "Attachable": false,
    "Ingress": false,
    "ConfigFrom": {
        "Network": ""
    },
    "ConfigOnly": false,
    "Containers": {
        "4a2c2b6ca8aec52f801ad554c6b2c14abbe616078393f1e8ef40bd82ad12aa2a": {
            "Name": "webserver2",
            "EndpointID": "86228e6678d82a9d6735b5440618be7fc281127e6d610d281d9ffc5bcb4f256f",
            "MacAddress": "02:42:ac:12:00:05",
            "IPv4Address": "172.18.0.5/16",
            "IPv6Address": ""
        },
        "9e13cbc4805fedf4db05b5de989f726bc110b97596b99b933a93e701641294a9": {
            "Name": "webserver",
            "EndpointID": "1bbcfe058373b225e5f53e8ff4d907d39bed578d9ac14d514ccf8da2d3c9628a",
            "MacAddress": "02:42:ac:12:00:04",
            "IPv4Address": "172.18.0.4/16",
            "IPv6Address": ""
        },
        "b846cc374fa09e90589c982613224f31135660a17a5f4585b24d876ea2abd53c": {
            "Name": "grafana",
            "EndpointID": "3c0dac6d612a48dc067a5c208334af4f90c8c1d9122e263ca464186c1cf19f35",
            "MacAddress": "02:42:ac:12:00:03",
            "IPv4Address": "172.18.0.3/16",
            "IPv6Address": ""
        },
        "dbe81d7b88413f78a06ce94f86781242299a3f6eee0f96f607ebaf8fb0b17be6": {
            "Name": "prometheus",
            "EndpointID": "4792bbd19cc7b782ec522d148eef7dcb5e31b5e38d99e886ff728a3f519b4973",
            "MacAddress": "02:42:ac:12:00:02",
            "IPv4Address": "172.18.0.2/16",
            "IPv6Address": ""
        }
    },
    "Options": {},
    "Labels": {
        "com.docker.compose.network": "default",
        "com.docker.compose.project": "frp-6",
        "com.docker.compose.version": "2.15.1"
    }
}

以下几点对我来说很突出：

"Internal": false,
    "Attachable": false,

这些会是罪魁祸首吗？如果是，我该如何修改它们呢？为了记录在案，我还尝试将容器的IP地址放在nginx配置中，如下所示

location /prometheus {

        proxy_pass http://172.18.0.2:9090/;

还是不成功。