Use Nginx deploy Django

Reference article link

My environment

conda 4.7.10, 3.6.7 Python, Django 3.0.3

Installation uWSGI

pip install uwsgi
If there is a problem, consider the following solution: Reference Links

apt-get install python3-dev
apt-get install gcc-4.7 ##卸载你的gcc版本，安装为4.7:
rm /usr/bin/gcc
ln -s /usr/bin/gcc-4.7 /usr/bin/gcc

Finally, re-run the install commandpip install uwsgi

UWSGI test is working properly

• Test.py create a new file: touch test.pyIf you want to delete the run after rm 文件名
  enter the following:

def application(env, start_response):
    start_response('200 OK', [('Content-Type','text/html')])
    return [b"Hello World"] # python3
    #return ["Hello World"] # python2

• Run uWSGI: uwsgi --http :8080 --wsgi-file test.py
  may be error:
  uwsgi: error loading the while the Libraries Shared: libpcre.so.1: CAN not Open Shared Object File: No SUCH File or Directory
  Solution: Reference Links

find / -name libpcre.so.* ##找到所有的系统中libpcre
ln -s /root/anaconda3/lib/libpcre.so.1 /lib ##创建libpcre.so.1软链到/lib下
which uwsgi ##测试一下是否好用了

Here is a pit, if your server is a cloud server, for example, I was Ali cloud, we must pay attention to running the port settings and port security groups corresponding to the cloud server console, or it may not work correctly with http access port.

• Browser type http://example.com:8000appears Hello World instructions to run successfully.
  The following represents the normal path: at The Web Client <-> uWSGI <-> Python
  ps.Ubuntu kill command specifies the process:kill -9 $(lsof -i tcp:8080 -t)

  From simple test.py to Django project

• Create a Django project and ensure that it runs correctly: how to create a reference here
  . Ps remember the cloud server Django project settings.py put in ALLOWED_HOSTS = ['']instead ALLOWED_HOSTS = ['*'], allow other normal access address.

• UWSGI use to run: uwsgi --http :8000 --module mysite.wsgi
  If you can run the following description of the normal route normal: the web client <-> uWSGI <-> Django
  usually we do not allow your browser to communicate directly with uWSGI, that is the job of the web server.

  Install Nginx

sudo apt-get install nginx
sudo /etc/init.d/nginx start ##启动nginx服务

Browser access through port 80, you should get a message from Nginx: "Welcome to nginx!" .
This shows the normal path: the web client <-> the web server

Nginx configuration of static routes

• New Django directory named in the uwsgi_paramsfile, the file contents from here Copy
• New Django directory named in the mysite_nginx.confdocument, says:

upstream django {
    server 0.0.0.0:8081; #web socket
}
server {
    listen      8080; #nginx端口
    server_name xx.xx.xx.xx; #IP地址
    charset     utf-8;
    client_max_body_size 75M;
    location /media  {
        alias /path/to/your/mysite/media; #media文件路径
    }
    location /static {
        alias /path/to/your/mysite/static; #static文件路径
    }
    location / {
        uwsgi_pass  django;
        include     /path/to/your/mysite/uwsgi_params; #uwsgi_parms文件路径
    }
}

• The above documents linked to the / etc / nginx / sites-enabled in order to identify Nginx
  sudo ln -s ~/path/to/your/mysite/mysite_nginx.conf /etc/nginx/sites-enabled/
• Modify Django's settings.py file, add the following statement:
  STATIC_ROOT = os.path.join(BASE_DIR, "static/")
• Run the following command:
  python manage.py collectstatic
• Restart Nginx
  sudo /etc/init.d/nginx restart

• Test
  test pictures test.jpg into the media folder access xx.xx.xx.xx:8080/media/test.jpgif they can access, indicating nginx provided the correct file services

  Dynamic configuration request Nginx

  Nginx to let test.pythe application tell "hello world" it.
  uwsgi --socket :8081 --wsgi-file test.py

• socket :8081: Use uWSGI protocol, port 8081, the same time, Nginx is already configured to communicate with the uWSGI in the port, while the external port 8000. Access: xx.xx.xx.xx:8080/
  emergence of "hello world" explained the following path normal: the web client <-> the web server <-> the socket <-> uWSGI <-> Python

  Instead of using a Unix socket port

  We are currently using a simple TCP socket, replace Unix socket used with less overhead.
• Edit mysite_nginx.confthe file
  to the first sentence server 0.0.0.0:8081; #web socketread server unix:///path/to/your/mysite/mysite.sock;here / path / to / your / ..... into your own path, mysite.sock is automatically generated, do not ignore it.
• Restart Nginx:sudo /etc/init.d/nginx restart
• Again run uWSGI:uwsgi --socket mysite.sock --wsgi-file test.py

• In the browser, go to: xx.xx.xx.xx:8000/
  here may appear 502 Bad Gateway, because Nginx no authority to enter the directory, it can not access the socket file, one solution is to change the identity of a user running Nginx, the /etc/nginx/nginx.conf the first row of user www-data; www-data change permissions high enough users, restart Nginx. I directly into the root, you can run properly.

  Use uWSGI and Nginx running Django application

• Enter the following command to run Django application
  uwsgi --socket mysite.sock --module mysite.wsgi --chmod-socket=664