From a8ce74b29be7e622dc0bc4a26ac04fa474e360a3 Mon Sep 17 00:00:00 2001
From: Kenneth Reitz <me@kennethreitz.com>
Date: Thu, 30 Jan 2014 12:14:18 -0500
Subject: [PATCH] Honor $WEB_CONCURRENCY environment variable.

Allows for changing concurrency configuration without changing
application code. This is an environment variable that other
communities (e.g. Rails) are starting to follow, and have enjoyed for a
little while now.

Have discussed with /cc @benoitc in the past and he was +1
---
 gunicorn/config.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gunicorn/config.py b/gunicorn/config.py
index cf8144e3..2d8d73ac 100644
--- a/gunicorn/config.py
+++ b/gunicorn/config.py
@@ -98,7 +98,8 @@ class Config(object):
 
     @property
     def workers(self):
-        return self.settings['workers'].get()
+        env_workers = int(os.environ.get('WEB_CONCURRENCY'))
+        return self.settings['workers'].get() or env_workers
 
     @property
     def address(self):