我正在尝试在Linode上的虚拟Ubuntu 14.04盒子上设置我的Mezzanine/Django项目，但是在尝试在浏览器中导航到我的站点时收到"502 Bad Gateway错误"。
我按照这里的说明进行操作：https://linode.com/docs/web-servers/nginx/deploy-django-applications-using-uwsgi-and-nginx-on-ubuntu-14-04。
我在/home/django/中运行了git clone，所以所有内容都在一个名为FOLDER的文件夹中。
/home/django/有这些目录：Env/和FOLDER/.
这应该可以了解FOLDER/树的样子：
FOLDER
- product_blog
-- product_blog
--- settings.py
--- wsgi.py
-- manage.py
在我的settings.py中，我有：
ALLOWED_HOSTS = ["PUBLIC IP OF MY LINODE UBUNTU INSTANCE HERE"]
wsgi.py有这个：
"""
WSGI config for product_blog project.
It exposes the WSGI callable as a module-level variable named ``application``.
For more information on this file, see
https://docs.djangoproject.com/en/1.10/howto/deployment/wsgi/
"""
import os
from django.core.wsgi import get_wsgi_application
from mezzanine.utils.conf import real_project_name
os.environ.setdefault("DJANGO_SETTINGS_MODULE",
"%s.settings" % real_project_name("product_blog"))
application = get_wsgi_application()
/etc/uwsgi/sites/product_blog.ini有这个：
[uwsgi]
project = product_blog
base = /home/django
chdir = %(base)/%(project)
home = %(base)/Env/%(project)
module = %(project).wsgi:application
master = true
processes = 2
socket = %(base)/%(project)/%(project).sock
chmod-socket = 664
vacuum = true
/etc/init/uwsgi.conf有这个：
description "uWSGI"
start on runlevel [2345]
stop on runlevel [06]
respawn
env UWSGI=/usr/local/bin/uwsgi
env LOGTO=/var/log/uwsgi.log
exec $UWSGI --master --emperor /etc/uwsgi/sites --die-on-term --uid django --gid www-data --logto $LOGTO
/etc/nginx/sites-available/product_blog有这个：
server {
listen 80;
server_name mydomain.com;
location = /favicon.ico { access_log off; log_not_found off; }
location /static/ {
root /home/django/FOLDER;
}
location / {
include uwsgi_params;
uwsgi_pass unix:/home/django/FOLDER/product_blog/product_blog.sock;
}
}
当我转到 Linode 框的 IP 地址时，我看到 502 错误网关错误。
/var/log/uwsgi.log有这个...
*** has_emperor mode detected (fd: 6) ***
[uWSGI] getting INI configuration from product_blog.ini
*** Starting uWSGI 2.0.17 (64bit) on [Sun Apr 22 17:17:56 2018] ***
compiled with version: 4.8.4 on 22 April 2018 19:53:45
os: Linux-4.15.12-x86_64-linode105 #1 SMP Thu Mar 22 02:13:40 UTC 2018
nodename: ubuntu-linode
machine: x86_64
clock source: unix
detected number of CPU cores: 1
current working directory: /etc/uwsgi/sites
detected binary path: /usr/local/bin/uwsgi
!!! no internal routing support, rebuild with pcre support !!!
chdir() to /home/django/product_blog
chdir(): No such file or directory [core/uwsgi.c line 2629]
chdir(): No such file or directory [core/uwsgi.c line 1644]
Sun Apr 22 17:17:56 2018 - [emperor] curse the uwsgi instance product_blog.ini (pid: 4238)
Sun Apr 22 17:17:59 2018 - [emperor] removed uwsgi instance product_blog.ini
/var/log/nginx/error.log有这个(删除了识别信息)：
2018/04/22 17:18:14 [crit] 3953#0: *9 connect() to unix:/home/django/FOLDER/product_blog/product_blog.sock failed (2: No such file or directory) while connecting to upstream, client: 73.49.35.42, server: mydomain.com, request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/home/django/FOLDER/product_blog/product_blog.sock:", host: "ADDRESS TO LINODE BOX"
似乎product_blog.sock应该在我的目录中的某个地方，但它不在那里。如何修复 502 错误，以便我可以将浏览器导航到 Linode 框的地址并查看正常工作的网站？
套接字文件应该由uWSGI创建。但是uWSGI日志告诉你它无法启动，因为它不能CD到你在product_blog.ini中指定的目录，/home/django/product_blog。
我无法判断FOLDER是否是占位符，但无论如何，您似乎没有将其包含在该路径中。我想应该是：
chdir = %(base)/FOLDER/%(project)
...
socket = %(base)/FOLDER/%(project)/%(project).sock