django gunicorn sock文件不是由wsgi创建的

我在我的数字海洋服务器（Ubuntu 16.04）中有一个基本的django休息应用程序，它具有本地虚拟环境 . 基本的wsgi.py是：

import os

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "workout_rest.settings")

# This application object is used by any WSGI server configured to use this
# file. This includes Django's development server, if the WSGI_APPLICATION
# setting points here.
from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()

# Apply WSGI middleware here.
# from helloworld.wsgi import HelloWorldApplication
# application = HelloWorldApplication(application)

我一步一步地按照本教程：https://www.digitalocean.com/community/tutorials/how-to-set-up-django-with-postgres-nginx-and-gunicorn-on-ubuntu-16-04

当我用这个命令测试Gunicorn服务项目的能力时：gunicorn --bind 0.0.0.0:8000 myproject.wsgi：application一切正常 .

所以我试图设置Gunicorn使用systemd服务文件 . 我的/etc/systemd/system/gunicorn.service文件是：

[Unit]
Description=gunicorn daemon
After=network.target

[Service]
User=ben
Group=www-data
WorkingDirectory=/home/ben/myproject
ExecStart=/home/ben/myproject/myprojectenv/bin/gunicorn --workers 3 --bind unix:/home/ben/myproject/myproject.sock myproject.wsgi:application

[Install]
WantedBy=multi-user.target

我的Nginx配置是：

server {
    listen 8000;
    server_name server_domain_or_IP;

    location = /favicon.ico { access_log off; log_not_found off; }
    location /static/ {
        root /home/ben/myproject;
    }

    location / {
        include proxy_params;
        proxy_pass http://unix:/home/ben/myproject/myproject.sock;
    }
}

我已经将侦听端口从80更改为8000，因为80给了我一个err_connection_refused错误 . 使用此命令启动服务器后：

sudo systemctl restart nginx

当我尝试运行我的网站时，出现502 Bad Gateway错误 . 我试过这些命令（在教程评论中找到）：

sudo systemctl daemon-reload
sudo systemctl start gunicorn
sudo systemctl enable gunicorn
sudo systemctl restart nginx

但没有变化 . 当我使用此命令查看Nginix日志时：

sudo tail -f /var/log/nginx/error.log

我可以读到sock文件不存在：

2016/10/07 09:00:18 [crit] 24974#24974: *1 connect() to unix:/home/ben/myproject/myproject.sock failed (2: No such file or directory) while connecting to upstream, client: 86.197.20.27, server: 139.59.150.116, request: "GET / HTTP/1.1", upstream: "http://unix:/home/ben/myproject/myproject.sock:/", host: "server_ip_adress:8000"

为什么没有创建这个sock文件？如何配置django / gunicorn来创建此文件？我在我的Django项目的INSTALLED_APP中添加了gunicorn，但它没有改变任何东西 .

EDIT:

当我用 nginx -t 测试nginx配置文件时，我收到一个错误： open() "/run/nginx.pid" failed (13: Permission denied) . 但是如果我用sudo运行命令： sudo nginx -t ，则测试成功 . 这是否意味着我必须允许'ben'用户运行Ngnix？

关于gunicorn logfile，我找不到一种方法来阅读它们 . 它们存放在哪里？

当我使用 ps aux | grep gunicorn 检查gunicorn是否正在运行时：

ben      26543  0.0  0.2  14512  1016 pts/0    S+   14:52   0:00 grep --color=auto gunicorn

当你为gunicorn运行systemctl enable和start命令时，就会发生这样的问题：

sudo systemctl enable gunicorn
Synchronizing state of gunicorn.service with SysV init with /lib/systemd/systemd-sysv-install...
Executing /lib/systemd/systemd-sysv-install enable gunicorn

sudo systemctl start gunicorn
I get no output with this command

sudo systemctl is-active gunicorn
active

sudo systemctl status gunicorn
● gunicorn.service - gunicorn daemon
   Loaded: loaded (/etc/systemd/system/gunicorn.service; enabled; vendor preset: enabled)
   Active: active (exited) since Thu 2016-10-06 15:40:29 UTC; 23h ago

Oct 06 15:40:29 DevUsine systemd[1]: Started gunicorn.service.
Oct 06 18:52:56 DevUsine systemd[1]: Started gunicorn.service.
Oct 06 20:55:05 DevUsine systemd[1]: Started gunicorn daemon.
Oct 06 20:55:17 DevUsine systemd[1]: Started gunicorn daemon.
Oct 06 21:07:36 DevUsine systemd[1]: Started gunicorn daemon.
Oct 06 21:16:42 DevUsine systemd[1]: Started gunicorn daemon.
Oct 06 21:21:38 DevUsine systemd[1]: Started gunicorn daemon.
Oct 06 21:25:28 DevUsine systemd[1]: Started gunicorn daemon.
Oct 07 08:58:43 DevUsine systemd[1]: Started gunicorn daemon.
Oct 07 15:01:22 DevUsine systemd[1]: Started gunicorn daemon.