Dynamic upstream configuration

[mamoos1]

Hi!

Unfortunately, I didn't find a very good solution for this, but, in nginx
1.4+ the issue with SSL backend keepalive was fixed - so if you have a list
of all your possible servers, your configuration file will look horrible,
but you can achieve this by having all the backend servers defined as
upstreams with different "server" clauses for each of the proxies.

Cheers,
- Roy

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,238424,239143#msg-239143