502 Bad Gateway django+gunicorn+nginx 配置答案

【问题标题】：502 Bad Gateway django+gunicorn+nginx configuration502 Bad Gateway django+gunicorn+nginx 配置
【发布时间】：2016-04-20 08:25:15
【问题描述】：

当我尝试访问我的网站时，我收到了 502 Bad Gateway。所以我查看了我的日志，我可以看到当我运行我的 gunicorn 脚本时，我收到以下错误消息：

2016/01/14 19:52:22 [error] 25232#0: *1 connect() to unix:/home/dvotedfan/run/gunicorn.sock failed (111: Connection refused) while connecting to upstream, client: 130.211.0.242, server: dvotedfan.com, request: "GET / HTTP/1.1", upstream: "http://unix:/home/dvotedfan/run/gunicorn.sock:/", host: "10.240.0.2"

我的 nginx 配置文件：

    upstream dvotedfan_app_server {
  server unix:/home/dvotedfan/run/gunicorn.sock fail_timeout=0;
}
server {
    listen 80;
    server_name www.dvotedfan.com dvotedfan.com;

    location = /favicon.ico { access_log off; log_not_found off; }
    location /static/ {
        root /home/dvotedfan/static;
    }
    location /media/ {
        root /home/dvotedfan/media;
    }
    location / {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    if (!-f $request_filename) {
            proxy_pass http://dvotedfan_app_server;
            break;
        }
       }
}

我的 gunicorn 脚本如下所示：

    #!/bin/bash
NAME="dvotedfan"
DJANGODIR=/home/dvotedfan/src
SOCKFILE=/home/dvotedfan/run/gunicorn.sock
USER=dvotedfan

NUM_WORKERS=3

MAX_REQUESTS=1
DJANGO_SETTINGS_MODULE=dvotedfan.settings.production
DJANGO_WSGI_MODULE=dvotedfan.wsgi # WSGI module name

echo "Starting $NAME"

cd $DJANGODIR
source /home/dvotedfan/.virtualenvs/dvotedfan/bin/activate

export DJANGO_SETTINGS_MODULE=$DJANGO_SETTINGS_MODULE
export PYTHONPATH=$DJANGODIR:$PYTHONPATH

RUNDIR=$(dirname $SOCKFILE)
test -d $RUNDIR || mkdir -p $RUNDIR

exec /home/dvotedfan/.virtualenvs/dvotedfan/bin/gunicorn ${DJANGO_WSGI_MODULE}:application \
--name $NAME \
--user=$USER \
--workers $NUM_WORKERS \
--max-requests $MAX_REQUESTS \
--bind=unix:/home/dvotedfan/run/gunicorn.sock \
--log-level=error \
--log-file=-

如果我运行 ps -ef|grep gunicorn

dvotedf+ 26820 24452  0 21:11 pts/0    00:00:00 nano /home/dvotedfan/scripts/gunicorn.sh
dvotedf+ 26821 24452  0 21:11 pts/0    00:00:00 nano /home/dvotedfan/scripts/gunicorn.sh
dvotedf+ 27003 24452  0 21:16 pts/0    00:00:00 /home/dvotedfan/.virtualenvs/dvotedfan/bin/python /home/dvotedfan/.
virtualenvs/dvotedfan/bin/gunicorn --bind 0.0.0.0:8000 dvotedfan.wsgi:application
dvotedf+ 27008 27003  0 21:16 pts/0    00:00:00 /home/dvotedfan/.virtualenvs/dvotedfan/bin/python /home/dvotedfan/.
virtualenvs/dvotedfan/bin/gunicorn --bind 0.0.0.0:8000 dvotedfan.wsgi:application
dvotedf+ 27199 27123  0 21:20 pts/2    00:00:00 grep --color=auto gunicorn

我到处都找不到解决方案。

【问题讨论】：

ps -ef|grep gunicorn 的输出是什么？

标签： django nginx gunicorn

【解决方案1】：

您的 gunicorn 正在侦听端口 8000，因此您需要连接到该端口。你的 nginx 配置文件应该是这样的

http {
  upstream django {
      server 127.0.0.1:8000;
  }

  server {
      listen 80;
      ...
      location / {
        uwsgi_pass django;
        include uwsgi_params;
      }
   }
}

【讨论】：

适用于IP，但我想知道为什么它不适用于套接字。
因为您告诉 gunicorn 监听接受来自端口 8000 --bind 0.0.0.0:8000 上的任何 IP 的连接，顺便说一句，这不是很安全。你应该改用--bind 127.0.0.1:8000。要让它监听本地套接字，你应该这样做 --bind unix:/path/to/socket.sock docs.gunicorn.org/en/stable/…