Lets see:
Django is WSGI compatible.
WSGI is Web Server Gateway Interface
Now, Nginx is a server. So we should be able to communicate with Django. So then why do we need uWSGI in between??
All say that uWSGI is a server which speaks wsgi protocol.
Then what is uwsgi protocol. How does it differ from WSGI (which is a protocol/specification)
And again, why do we find the combination Django + uWSGI + Nginx ??
Cant I speak WSGI between nginx & django?? Coz WSGI itself means to be an specification between WebServer (nginx) and Web Applications (django)
WSGI is specifically a Python interface, whereas Nginx is a general webserver. So at a minimum you need something between Nginx and Django that translates the standard http request into a WSGI one.
uWSGI is just one of several popular WSGI servers. Others include gunicorn and mod_wsgi (an Apache module which necessitates having Apache installed too). uWSGI happens to be my preferred one and nginx now has native support for its protocol, so you won't go to far wrong by using it.
Related
Read through the other threads, but none seemed to address my need.
I have a website running fine on default port 80/443 using Apache on CentOS 7.
I have now installed gunicorn and copied my files to a /api subdirectory on the server. I am able to start gunicorn successfully using "gunicorn -b 0.0.0.0:8000 api:app"; however, I don't seem to be able to browse to https://example.com:8000 (site can't be reached).
Do I need to use a VirtualHost's file specifically for the Flask /api directory? If so, what would that look like without disrupting the main site?
EDIT: Note this is a Flask-RESTful API, no static files or anything on the Flask side. Just endpoints/routes to serve.
Please, I need to configure Django Channels on redis-channel-layer on windows IIS in production. It is running very well in development.
I have installed redis, daphne. I have set the IIS as proxy server with URL Rewrite pointing the Inbound to localhost 6379 to redis-layer channels. I used python manage.py runworker. and also started the daphne server with the daphne command.
They all ran very well, but there is no websocket handshake for my url.
I am planing to deploy my Django application with HTTP/2 protocol but I'm unable to find the proper solution. How can I serve my Django web application with HTTP/2, the only thing that I find is hyper-h2.
I read the documentation but unable to setup the connections.
You can do with Nginx proxy
if you have existing nginx config. you do by just adding a word .http2 in listen
listen 443 ssl http2 default_server;
full document avaliable in
https://www.digitalocean.com/community/tutorials/how-to-set-up-nginx-with-http-2-support-on-ubuntu-16-04
One option is to use Apache httpd server with mod_wsgi. Apache supports terminating HTTP/2. The link to your Django application is still via WSGI API so you don't really get any access to HTTP/2 specific features in your application. You can though configure Apache to do things like server push on your behalf.
https://httpd.apache.org/docs/2.4/howto/http2.html
https://httpd.apache.org/docs/2.4/mod/mod_http2.html
To support HTTP 2.0, You can deploy Django apps on web servers like Daphne using ASGI (which is the spiritual successor to WSGI).
you can read more about deploying Django with ASGI in the official documentaion
to read more about ASGI and what is it, introduction to ASGI
to read more about Daphne server, official repository
I have a ubuntu server hosting a web page driven by Python Django, I can access that page by using the following command:elinks http:// 127.0.0.1:8000.
Now if I want to access that same web page on a macbook sharing the same home router with my ubuntu server(local ip: 10.0.0.9), how would I do it? Typing in elinks http:// 10.0.0.9:8000 wouldn't work.
Thanks a lot,
ZZ
Are you running the development server using manage.py?
If so, you should start the server using:
python manage.py runserver 0.0.0.0:8000
This will allow the development server to be visited by ips on all interfaces instead of just localhost.
You need to serve it. There are a number of ways to do this, but my preferred method is to use Nginx as a reverse proxy server for gunicorn. This is a good tutorial for that.
A lot of Django app deployments over Amazon's EC2 use HTTP servers NGINX and Gunicorn.
I was wondering what they actually do and why both are used in parallel. What is the purpose of running them both in parallel?
They aren't used in parallel. NGINX is a reverse proxy. It's first in line. It accepts incoming connections and decides where they should go next. It also (usually) serves static media such as CSS, JS and images. It can also do other things such as encryption via SSL, caching etc.
Gunicorn is the next layer and is an application server. NGINX sees that the incoming connection is for www.domain.com and knows (via configuration files) that it should pass that connection onto Gunicorn. Gunicorn is a WSGI server which is basically a:
simple and universal interface between web servers and web applications or frameworks
Gunicorn's job is to manage and run the Django instance(s) (similar to using django-admin runserver during development)
The contrast to this setup is to use Apache with the mod_wsgi module. In this situation, the application server is actually a part of Apache, running as a module.
Nginx and Gunicorn are not used in parrallel.
Gunicorn, is a Web Server Gateway Interface (WSGI) server
implementation that is commonly used to run Python web applications.
NGINX is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server.
Nginx responsible for serving static content, gzip compression, ssl,
proxy_buffers and other HTTP stuff.While gunicorn is a Python HTTP server that interfaces with both nginx and your actual python web-app code to serve dynamic content.
The following diagrams shows how nginx and Gunicorn interact.