I have decided to release an in-house module that I have been using for
hosting company. A full explanation of the goals of the module is
in the README.
I am well aware that this module introduces (minor) additional
overheads. However, experience has shown them to be far superior to the
alternative of Apache whilst allowing the freedom to run a shared
environment without constantly restarting the nginx. As my knowledge of
inner workings of nginx is not as sophisticated as that of others I
feedback regarding optimisation.
Posted at Nginx Forum: