Even if you cobble together a suitable application platform, you’ll still be on the wrong side of the economic dynamics which make cloud computing so appealing. To wit: there is a large team of people at Amazon whose job it is to keep the load balancers working 24/7, and because they operate at a vast scale, they can offer this service for $16 a month per load balancer. That’s about 12 minutes per month of a software developer’s time. It’s unlikely that a jerry-built ball of Nginx and HAProxy can beat that value proposition.