Gunicorn - Python WSGI HTTP Server for UNIX

Latest version: 19.9.0

# Gunicorn 'Green Unicorn' is a Python WSGI HTTP Server for UNIX. It's a pre-fork worker model. The Gunicorn server is broadly compatible with various web frameworks, simply implemented, light on server resources, and fairly speedy.

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- ## Quickstart

  Read the quickstart guide to get started using Gunicorn.

- ## Deployment

  Learn how to deploy the Gunicorn server.

- ## Community

  Get in touch with the community.

- ## Documentation

  Read the documentation to learn more about Gunicorn.

# Installation

Here's a quick rundown on how to get started with Gunicorn. For more details read the documentation.

      $ pip install gunicorn
      $ cat myapp.py
        def app(environ, start_response):
            data = b"Hello, World!\n"
            start_response("200 OK", [
                ("Content-Type", "text/plain"),
                ("Content-Length", str(len(data)))
            ])
            return iter([data])
      $ gunicorn -w 4 myapp:app
      [2014-09-10 10:22:28 +0000] [30869] [INFO] Listening at: http://127.0.0.1:8000 (30869)
      [2014-09-10 10:22:28 +0000] [30869] [INFO] Using worker: sync
      [2014-09-10 10:22:28 +0000] [30874] [INFO] Booting worker with pid: 30874
      [2014-09-10 10:22:28 +0000] [30875] [INFO] Booting worker with pid: 30875
      [2014-09-10 10:22:28 +0000] [30876] [INFO] Booting worker with pid: 30876
      [2014-09-10 10:22:28 +0000] [30877] [INFO] Booting worker with pid: 30877

# Deployment

Gunicorn is a WSGI HTTP server. It is best to use Gunicorn behind an HTTP proxy server. We strongly advise you to use nginx.

Here's an example to help you get started with using nginx:

      server {
        listen 80;
        server_name example.org;
        access_log  /var/log/nginx/example.log;

        location / {
            proxy_pass http://127.0.0.1:8000;
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
      }

Nginx is set up as reverse proxy server to a Gunicorn server running on localhost port 8000.

Read the full documentation at docs.gunicorn.org

# Project Management

Gunicorn uses GitHub for the project management. GitHub issues are used for 3 different purposes:

- Bug tracker
- Forum
- Mailing list

Project maintenance guidelines are avaible on the wiki

# Irc

The Gunicorn channel is on the Freenode IRC network. You can chat with the community on the #gunicorn channel.

# Issue Tracking

Bug reports, enhancement requests and tasks generally go in the Github issue tracker.

# Security Issues

The security mailing list is a place to report security issues. Only developers are subscribed to it. To post a message to the list use the address security@gunicorn.org

# Documentation

You can read more comprehensive documentation at docs.gunicorn.org.

The contents are:

- Installation
- Running Gunicorn
- Configuration Overview
- Deploying Gunicorn
- Design
- FAQ
- Changelog