Django+Uwsgi+Nginx to achieve production environment deployment

uwsgi introduction

uWSGI is an Web server, it implements WSGI protocol, uwsgi, http protocol, etc. The function of HttpUwsgiModule in Nginx is to swap with the uWSGI server.

Note the distinction between WSGI/uwsgi/uWSGI.

WSGI is an Web server gateway interface. It is a specification for an Web server (e.g. nginx, uWSGI, etc.) to communicate with web applications (e.g., programs written with the Flask framework).

uwsgi is a wire protocol rather than a communication protocol, and is often used here for data communication between uWSGI servers and other network servers.

And uWSGI is the implementation of uwsgi and WSGI two protocols Web server.

The uwsgi protocol is a proprietary protocol for the uWSGI server. It is used to define the type of information to be transmitted (type of information). The first 4byte describes the type of information to be transmitted, which is two things compared to WSGI.

Install uwsgi

pip install uwsgi

uwsgi does not support windows

The test start

Create a test file and write:

def application(environ, start_response): 
status = '200 OK' 
output = 'Hello World! powerde by wsgi' 
response_headers = [('Content-type', 'text/plain'),
('Content-Length', str(len(output)))] 
start_response(status, response_headers)
return [output.encode('utf8'),]

Execute the command:

uwsgi --http :8080 --file test.py

The browser accesses this port and normally gets output.

Start django with uwsgi

uwsgi --http :8080 --file django_project/wsgi.py

The page can be accessed, but the static file cannot be loaded

uwsgi --http :8080 --file django_project/wsgi.py --static-map=/static=static

Static files are ready to load.

Parameter description:

The http port specifies the IP port as runserver 1 does The file file contains one reflection. If you do not specify Web when calling it, use the default static does one mapping, specifying static files

The uwsgi configuration file starts the django project

ES99en supports a large number of parameters, which can be written in the configuration file. Create the file uwsgi. ini in the project level directory:

# uwsig Start with a configuration file 
[uwsgi]
#  Project directory 
chdir=/opt/webvirtcloud/
#  project-specific application
module=webvirtcloud.wsgi:application
#  The specified sock The file path of  
socket=/tmp/uwsgi.sock
#  Number of processes  
workers=5
pidfile=/tmp/uwsgi.pid
#  The specified IP port  
http=0.0.0.0:8080 #  If and ngxin Comment out this line 
#  Specify static files 
static-map=/static=/opt/webvirtcloud/static
#  Start the uwsgi The user name and user group 
uid=root
gid=root
#  Enable the main process 
master=true
#  Automatically remove unix Socket and pid File when the service is stopped 
vacuum=true
#  Serialize the accepted content, if possible 
thunder-lock=true
#  Enable the thread 
enable-threads=true
#  Set the self-interrupt time 
harakiri=30
#  Set the buffer 
post-buffering=4096
#  Set the log directory 
daemonize=/var/log/uwsgi.log

More parameters: https: / / uwsgi - docs readthedocs. io en/latest/Options html

uwsgi --ini uwsgi.ini, no longer use shell terminal, even if the shell connection is disconnected, the page can still be accessed.

So how do you shut it down or restart it?

uwsgi --stop /tmp/uwsgi.pid

Configuration nginx

Find the Nginx configuration file and write in the virtual domain name:

server {
listen 80;
server_name localhost;

location / { 
include uwsgi_params;
uwsgi_pass 127.0.0.1:8080; // Must and uwsgi In the socket The setting of the 1 to 
client_max_body_size 35m;
}
}