WSL2 Nginx + PHP FPM 在连接到上游时失败（111：连接被拒绝），客户端：172.23.0.1，上游："fastcgi://172.23.0.3:9001"

Question

每次我尝试通过 localhost:8000 / 127.0.0.1:8000 访问 nginx 时，我都会遇到此错误：

nginx_1 | 2022/05/29 13:28:57 [error] 32#32: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 172.22.0.1, server: , request: "GET /favicon.ico HTTP/1.1", upstream: "fastcgi://172.22.0.5:9001", host: "localhost:8000", referrer: "http://localhost:8000/"

前一天docker 配置成功

我创建了 github repo 以便于代码审查

我已经尝试过的：

更改 FPM/Nginx 端口
重启WSL/Docker/PC
新建 symfony 项目
在同一网络添加php && nginx 容器

docker-撰写：

version: '3.7'
services:
  database:
    image: postgres:11-alpine
    environment:
      POSTGRES_USER: root
      POSTGRES_PASSWORD: symfony
      POSTGRES_DB: main
    ports: 
      - 15432:5432
  php:
    build: ./docker/php
    ports: ['9001:9000']
    volumes: ['./symfony/:/var/www/symfony:cached']
    depends_on:
      - database
  nginx:
    build: ./docker/nginx
    ports: ['8000:80']
    volumes: ['./symfony/:/var/www/symfony:cached']
  adminer:
    image: adminer
    restart: always
    links:
      - database
    ports:
      - 8081:8080

symfony.conf:

    upstream php-upstream {
        server php:9001;
    }
    
    server {
       listen 80;
       root /var/www/symfony/public;
       
       fastcgi_buffers 16 16k;
       fastcgi_buffer_size 32k;
    
       location / {
          try_files $uri /index.php$is_args$args;
       }
    
       location ~ ^/.+\.php(/|$) {
          fastcgi_pass php-upstream;
          fastcgi_split_path_info ^(.+\.php)(/.*)$;
          include fastcgi_params;
          fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
          fastcgi_param DOCUMENT_ROOT $realpath_root;
          internal;
       }
    
       location ~ \.php$ {
           return 404;
       }

   error_log /var/log/nginx/error.log;
   access_log /var/log/nginx/access.log;
}

nginx.conf:

user nobody;
worker_processes auto;
pid /run/nginx.pid;

events {
  worker_connections  4000;
  multi_accept on;
  use epoll;
}

http {
  server_tokens off;
  sendfile on;
  tcp_nopush on;
  tcp_nodelay on;
  keepalive_timeout 30;
  types_hash_max_size 2048;
  include /etc/nginx/mime.types;
  default_type application/octet-stream;
  access_log off;
  error_log off;
  gzip on;
  gzip_min_length 10240;
  gzip_comp_level 1;
  gzip_vary on;
  gzip_disable msie6;
  gzip_proxied expired no-cache no-store private auth;
  gzip_types
      text/css
      text/javascript
      text/xml
      text/plain
      text/x-component
      application/javascript
      application/x-javascript
      application/json
      application/xml
      application/rss+xml
      application/atom+xml
      font/truetype
      font/opentype
      application/vnd.ms-fontobject
      image/svg+xml;
  include /etc/nginx/conf.d/*.conf;
  include /etc/nginx/sites-enabled/*;
  reset_timedout_connection on;
  open_file_cache max=200000 inactive=20s;
  open_file_cache_valid 30s;
  open_file_cache_min_uses 2;
  open_file_cache_errors on;
  client_body_temp_path /tmp 1 2;
  client_body_buffer_size 256k;
  client_body_in_file_only off;
}

daemon off;

Answer 1

您正在尝试使用主机上映射的端口 9001 连接到使用其服务名称的容器。

您有两个选择：

在您的 nginx 上游使用容器正在侦听的端口 9000。 php:9000
将上游转发给带host.docker.internal:9001的主机。
奖励：使用 Unix 套接字，但那是另一回事。

当服务共享网络并且必须相互通信时，我通常会使用“内部”端口。这样，您就可以将网络流量保持在该网络内。因此，如果您使用 TCP/IP 进行连接，“解决方案 1”将是最佳方法。另外，如果您不需要从 Docker 网络外部连接，则不必在主机上映射端口。

所以...这应该有效：

upstream php-upstream {
    server php:9000;
}

server {
   listen 80;
   root /var/www/symfony/public;
   
   fastcgi_buffers 16 16k;
   fastcgi_buffer_size 32k;

   location / {
      try_files $uri /index.php$is_args$args;
   }

   location ~ ^/.+\.php(/|$) {
      fastcgi_pass php-upstream;
      fastcgi_split_path_info ^(.+\.php)(/.*)$;
      include fastcgi_params;
      fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
      fastcgi_param DOCUMENT_ROOT $realpath_root;
      internal;
   }

   location ~ \.php$ {
       return 404;
   }

   error_log /var/log/nginx/error.log;
   access_log /var/log/nginx/access.log;
}

WSL2 Nginx + PHP FPM 在连接到上游时失败（111：连接被拒绝），客户端：172.23.0.1，上游："fastcgi://172.23.0.3:9001"

WSL2 Nginx + PHP FPM failed (111: Connection refused) while connecting to upstream, client: 172.23.0.1, upstream: "fastcgi://172.23.0.3:9001"

nginx

symfony

docker

windows-subsystem-for-linux

fpm