配置Nginx服务器到python烧瓶应用程序 [英] Configuring Nginx server to python flask application

问题描述

我是配置服务器的新手。我想配置我的Amazon-EC2实例。我根据这个文件配置它。 http://www.soundrenalin.com/about

但是当我点击这个url时，遇到了 502 Bad Gateway 错误。
我的项目位于以下路径： / home / ubuntu / dsn / app 。
/ home / ubuntu / dsn 文件夹树是：

  app / 
 app.py 
 static / 
模板/ 
主题/ 
 bin / 
建立/ 
 include / 
 lib / 
 local / 
 run.py 
  

这是我的nginx配置（ / etc / nginx / sites-available / default ）：

  server {
 listen 80; 
 
 root / home / ubuntu / dsn / app 
 index index.html index.htm; 
 
 server_name localhost; 
位置/ {try_files $ uri @app; } 
 location @app {
 include uwsgi_params; 
 uwsgi_pass unix：/tmp/uwsgi.sock; 
 
 
 
 
 $ b $ p $这里是我的 uwsgi .ini  file： 
 
 
  [uwsgi] 
 chdir = / home / ubuntu / dsn / 
 uid = www-data 
 gid = www-data 
 chmod-socket = 666 
 socket = /tmp/uwsgi.sock 
 module = run 
 virtualenv = / home / ubuntu / dsn / 
  
另外一个是：
当我运行命令 tail -f /var/log/nginx/error.log 结果是：
  2013/06/09 15:58:11 [error] 5321＃0：* 1连接（）到unix：/tmp/uwsgi.sock失败（111：连接被拒绝）while连接到上游，客户端：< myip>，服务器：localhost，请求：GET / HTTP / 1.1，上游：uwsgi：// unix：/tmp/uwsgi.sock：，主机：54.218.14.213 
  
我该如何解决这个问题？谢谢。 
解决方案
可能是以下其中一种情况： 
 
 
 
 
您的UWSGI套接字不在/tmp/uwsgi.sock中
  uwsgi或www-data用户没有权限在您的/ tmp中创建uwsgi.sock目录。
 
 $ b $ p如果你在Ubuntu 12.04上安装了Uwsgi，那么这个配置文件应该位于： 
 
 
  /usr/share/uwsgi/conf/default.ini 
  
以下是该文件中的默认套接字配置： 
 
 
 ＃绑定到UNIX套接字/ run / uwsgi / < confnamespace> /< confname> / socket 
 socket = / run / uwsgi /％（deb-confnamespace）/％（deb-confname）/ socket 
  pre> 
 
 
您应该创建一个与我的类似的应用程序特定的配置文件。我可以确认它在虚拟环境中工作。
  sudo vim /etc/uwsgi/apps-available/your-app.ini 
  
 your-app.ini的内容：
  [uwsgi] 
 base = /home/nick/your-app.com 
 
＃烧瓶应用程序文件的位置
 file = /home/nick/your-app.com/main.py 
 
 #uwsgi varible only，不涉及你的烧瓶应用程序
 callable = app 
 
 #uwsgi插件
 plugins = http，python 
 
＃在虚拟环境中创建
 home =％（base）/ venv 
 
 pythonpath = ％（base）
 socket = /tmp/%n.sock 
 logto = /var/log/uwsgi/%n.log 
 workers = 3 
 
 
 code>＃确保任何用户写入/ tmp目录
 sudo chmod 777 / tmp 
 sudo ln -s /etc/uwsgi/apps-available/your-app.ini / etc / uwsgi / apps-enabled / your-app.ini 
 sudo服务uwsgi重启
  
 
i am new to configuring server. And i want to configure my Amazon-EC2 instance. I configured it according to this document. http://www.soundrenalin.com/about

However when i click the url, 502 Bad Gateway error is being encountered.
My project is located at this path: /home/ubuntu/dsn/app.

And the /home/ubuntu/dsn folder tree is:
app/
    app.py
    static/
    templates/
    themes/
bin/
build/
include/
lib/
local/
run.py

Here is my nginx config (/etc/nginx/sites-available/default):
server {
        listen   80; 

        root /home/ubuntu/dsn/app
        index index.html index.htm;

        server_name localhost;
        location / { try_files $uri @app; }
        location @app {
             include uwsgi_params;
             uwsgi_pass unix:/tmp/uwsgi.sock;
        }
}
And here is my uwsgi.ini file:
[uwsgi]
     chdir = /home/ubuntu/dsn/
     uid = www-data
     gid = www-data
     chmod-socket = 666
     socket = /tmp/uwsgi.sock
     module = run
     virtualenv = /home/ubuntu/dsn/   
And the other thing is:

When i run the command tail -f /var/log/nginx/error.log result is:
2013/06/09 15:58:11 [error] 5321#0: *1 connect() to unix:/tmp/uwsgi.sock failed (111: Connection refused) while connecting to upstream, client: <myip>, server: localhost, request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/tmp/uwsgi.sock:", host: "54.218.14.213"
How can i solve this? Thanks.                                
解决方案
It could be one of the following things:

Your UWSGI socket is not located at /tmp/uwsgi.sock
The uwsgi or www-data user does not have permissions to create uwsgi.sock in your /tmp directory.
If you installed Uwsgi on Ubuntu 12.04, the config file should be located at:
/usr/share/uwsgi/conf/default.ini
Here's the default socket config in that file:
# bind to UNIX socket at /run/uwsgi/<confnamespace>/<confname>/socket
socket = /run/uwsgi/%(deb-confnamespace)/%(deb-confname)/socket
You should create an app-specific config file that looks similar to mine. I can confirm it works inside a virtual environment.
sudo vim /etc/uwsgi/apps-available/your-app.ini
The contents of your-app.ini:
[uwsgi]
base = /home/nick/your-app.com

#location of the flask application file
file = /home/nick/your-app.com/main.py

#uwsgi varible only, does not relate to your flask application
callable = app

#uwsgi plugins
plugins = http,python

#to create within a virtual environment
home = %(base)/venv

pythonpath = %(base)
socket = /tmp/%n.sock
logto = /var/log/uwsgi/%n.log
workers = 3
To enable, you need to symlink and restart nginx.
#make sure that any user to write to the /tmp directory
sudo chmod 777 /tmp
sudo ln -s /etc/uwsgi/apps-available/your-app.ini /etc/uwsgi/apps-enabled/your-app.ini
sudo service uwsgi restart


                        
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