我有2个nginx容器，我已经创建了通过对接组成文件。以下是我的对接组成文件。

version: '3.7'

services:
  nginx1:
    image: nginx:latest
    hostname: nginx1
    container_name: nginx1
    restart: on-failure
    volumes:
      - nginx1-web:/usr/share/nginx/html
      - nginx1-conf:/etc/nginx
    ports:
      - "81:80"
    networks:
      - kong-net

  nginx2:
    image: nginx:latest
    hostname: nginx2
    container_name: nginx2
    restart: on-failure
    volumes:
      - nginx2-web:/usr/share/nginx/html
      - nginx2-conf:/etc/nginx
    ports:
      - "82:80"
    networks:
      - kong-net

networks:
  kong-net:

volumes:
  kongconfig:
  nginx1-web:
  nginx1-conf:
  nginx2-web:
  nginx2-conf:

我的主机IP是1.1.1.1我已针对域API的此IP添加DNS。abc.com
然后我已经为反向代理在“/var/nginx/sites-available”中创建了一个名为“nginxfile”的文件。然后创建了它的符号链接。下面是文件nginxfile的内容

server {
    listen 80;
    server_name api.abc.com;

    location /nginx1 {
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Proto https;
        proxy_pass http://localhost:81;
        proxy_redirect off;
    }

    location /nginx2 {
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Proto https;
        proxy_pass http://localhost:82;
        proxy_redirect off;
    }   

}

现在，当我打开1.1.1.1：81或1.1.1.1：82在浏览器中它的工作prefect.但当我试图访问api.abc.com/nginx1和api.abc.com/nginx2它给我“404找不到”错误.
我不知道哪里出错了，请帮我排除故障。

实际上，我希望在打开api.abc.com/nginx1时容器1打开，在打开api.abc.com/nginx2时容器2打开。