nginx后面的多个php fpm容器

我想将nginx后面的三个基于php的web应用程序作为代理/前端（也是docker）进行“dockerize”：own app、piwik（）和nextcloud（）

它适用于一个php fpm容器，但不适用于两个或多个（至少有两个php fpm容器使用了/var/www/html:nextcloud，piwik）。为了简化，省略了db容器

docker-compose.yml：

version: '2'

volumes:
    nextcloud_data:

services:
  web:
    image: nginx:stable
    ports:
      - "80:80"
    volumes:
      - ./conf.d:/etc/nginx/conf.d:ro
    volumes_from:
      - nextcloud
      - piwik # (a)
    links:
      - nextcloud
      - piwik # (a)
    restart: always
  nextcloud:
    image: nextcloud:11.0-fpm
    volumes:
      - nextcloud_data:/var/www/html
    restart: always
  piwik:
    image: piwik:fpm
    restart: always

nginx Config

conf.d/piwik.conf

——灵感来自：

nextcloud的配置类似（nextcloud.example.org）

Piwik可以很好地使用此设置（nextcloud被破坏，web容器中的

/var/www/html

包含Piwik内容）。当我注释掉（a）标记的行并禁用piwik.conf时，nextcloud可以正常工作，但piwik被破坏了（

/var/www/html

包含nextcloud内容）。我的问题是它们共享相同的路径（

/var/www/html

）。我如何用官方图片避免这种情况

upstream php-piwik {
    server piwik:9000;
}

server {
    index index.php index.html;
    server_name piwik.example.org;
    error_log  /var/log/nginx/error.log;
    access_log /var/log/nginx/access.log;
    root /var/www/html;

    location / {
        try_files $uri $uri/ =404;
    }

    error_page 404 /404.html;
    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
        root /usr/share/nginx/html;
    }

    location = /favicon.ico {
        log_not_found off;
        access_log off;
    }

    location ~ \.php$ {
        fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
        fastcgi_param  SERVER_SOFTWARE    nginx;
        fastcgi_param  QUERY_STRING       $query_string;
        fastcgi_param  REQUEST_METHOD     $request_method;
        fastcgi_param  CONTENT_TYPE       $content_type;
        fastcgi_param  CONTENT_LENGTH     $content_length;
        fastcgi_param  SCRIPT_FILENAME    $document_root$fastcgi_script_name;
        fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
        fastcgi_param  REQUEST_URI        $request_uri;
        fastcgi_param  DOCUMENT_URI       $document_uri;
        fastcgi_param  DOCUMENT_ROOT      $document_root;
        fastcgi_param  SERVER_PROTOCOL    $server_protocol;
        fastcgi_param  REMOTE_ADDR        $remote_addr;
        fastcgi_param  REMOTE_PORT        $remote_port;
        fastcgi_param  SERVER_ADDR        $server_addr;
        fastcgi_param  SERVER_PORT        $server_port;
        fastcgi_param  SERVER_NAME        $server_name;
        fastcgi_intercept_errors on;
        fastcgi_pass php-piwik;
    }
}